subject:"test"

Hello there,

after having played for a time with constraints, I have decided to use a 
trigger instead -- main reason is that I really want the validation performed 
on INSERT only; a constraint might get evaluated in other occassions, too.

Nevertheless, I can't find a decent way of doing that in FrontBase. Is here 
anybody who knows its dialect well enough?

Ideally, the trigger would look more or less like this:

===
create trigger TEST_PO_TRIGGER before insert on T_PRICE_OFFER
referencing new po for each row when (... my complex validation condition ...)
raise exception 'Price offer not valid'
===

presumed RAISE EXCEPTION worked in FrontBase, which it does not, nor I was able 
to find any other statement/function to rollback the transaction and report an 
error.

Presumed there's no such function at all, the first fallback would be

===
create trigger TEST_PO_TRIGGER before insert on T_PRICE_OFFER
referencing new po for each row when (... my complex validation condition ...)
set po.C_UID = null
===

which would exploit the fact C_UID (which happens to be the PK) can't be null. 
Alas, again, whatever I tried, I haven't been able to find any SET syntax which 
would work :(

Eventually, the only trigger I found working was

===
create trigger TEST_PO_TRIGGER after insert on T_PRICE_OFFER
referencing new po for each row when (... my complex validation condition ...)
update T_PRICE_OFFER set C_UID = null where C_UID=po.C_UID
===

but darn, that seems to be a _terribly_ convoluted work-around for the desired 
behaviour!

As always, I'll be grateful for any advice,
OC


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

Chuck,

On 20. 2. 2015, at 19:37, Chuck Hill ch...@gevityinc.com wrote:

 One way would be to twist the DB to do the complete restraint to me, 
 something like to a pseudo-code “inserted_row.attr=MAX(SELECT attr FROM 
 this_table WHERE another_attr.isValid) AND couple more similar conditions” 
 -- frankly I am not sure whether the database (FrontBase) can do that at 
 all, and if it can, definitely I don't know how to.
 
 I think you can do it as a Check constraint.  It needs to be a boolean 
 expression, but I am not sure it can include selects.  A quick experiment 
 would show if it can.

It looks like FrontBase allows me to use SELECT in check constraints, but I've 
bumped into another problem -- I need also to join to access values from 
another table, and I don't know how to express „column from the row just being 
inserted, not from any other table in the SELECT“?

My constraint expression (considerably simplified for readability) looks like 
this:

(select max(po.C_PRICE) from T_PRICE_OFFER po, T_AUCTION auc where 
po.C_AUCTION_ID=auc.C_UID and po.C_PRICE=auc.C_MAX_PRICE and 
po.C_CREATION_DATEC_CREATION_DATE)C_PRICE

to express a condition “PRICE of the inserted PRICE_OFFER must be higher than 
all PRICEs of all older PRICE_OFFERs belonging to the same auction, whose PRICE 
does not exceed the auction's MAX_PRICE”.

The problem is with the “older PRICE_OFFERs” part (“WHERE ... 
po.C_CREATION_DATEC_CREATION_DATE”) -- FrontBase complains that 
C_CREATION_DATE is ambiguous. Well it is -- all the tables in question contain 
such a column -- but how should I prefix it to tell the server „this is the 
CREATION_DATE of the row which is being inserted“?

Thanks a lot,
OC


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

Anyway, back to the original question --

On 20. 2. 2015, at 18:27, OC o...@ocs.cz wrote:
 Actually _this_ should not be weird, this should be quite a normal code; 
 the only requirement is that check-and-save, i.e., conceptually,
 
 ===
 if (TEST(eo.someRelationship().someAttribute(),newAttributeValue)) {
  def 
 new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
  new.someAttribute=newAttributeValue
  eo.editingContext().saveChanges()
 }
 ===
 
 so that I can be absolutely sure that nobody stores an attribute value 
 which -- at the moment of COMMITTing the appropriate INSERT -- would not 
 pass the TEST

 I don’t think you can make a rock-solid guarantee from the app code level.
 
 Can't I? That's bad.

-- I have succeeded to consult with my client, and the option of „allowing to 
save any bid, determine whether it was valid or not in future“ is out.

On the other hand, he again suggests pessimistic locking: „why don't we simply 
lock the auction row when user reads the data to determine whether his bid is 
valid, and unlock when he saves the valid bid or when he determines the bid is 
not valid“?

I can see only one slight drawback -- unnecessary locks in case the bid 
validation fails -- but that should be a negligible problem, most bid attempts 
are valid (and _if_ they become invalid, then since other bid was entered 
shortly before, which would lead to optimistic exception anyway).

Far as I understand though based on your

===
On 24. 1. 2015, at 0:12, Chuck Hill ch...@gevityinc.com wrote:
 I doubt that lockObject() code in EOF has been run in… maybe forever.  It is 
 highly possible that it is causing EOF to get confused and resulting in the 
 errors below.  Get rid of the lockObject() calls and see if the problem below 
 goes away.
===

I guess the proper answer is „Well we can't use pessimistic row locking at all, 
since EOF does not support it reliably, and that's that.“

Is that right?

Thanks again,
OC


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

2015-02-21 Thread Chuck Hill

I think it is a fair expectation that EOF may not properly support optimistic 
locking.  I am not even sure how to set it up properly.  There are some methods 
on EOEditingContext and EODatabaseContext, and one the EODatabaseContext 
Delegate.

Chuck

On 2015-02-21, 3:42 AM, OC wrote:

Anyway, back to the original question --

On 20. 2. 2015, at 18:27, OC o...@ocs.czmailto:o...@ocs.cz wrote:
Actually _this_ should not be weird, this should be quite a normal code; the 
only requirement is that check-and-save, i.e., conceptually,
===
if (TEST(eo.someRelationship().someAttribute(),newAttributeValue)) {
  def 
new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
  new.someAttribute=newAttributeValue
  eo.editingContext().saveChanges()
}
===
so that I can be absolutely sure that nobody stores an attribute value which -- 
at the moment of COMMITTing the appropriate INSERT -- would not pass the TEST

I don’t think you can make a rock-solid guarantee from the app code level.
Can't I? That's bad.

-- I have succeeded to consult with my client, and the option of „allowing to 
save any bid, determine whether it was valid or not in future“ is out.

On the other hand, he again suggests pessimistic locking: „why don't we simply 
lock the auction row when user reads the data to determine whether his bid is 
valid, and unlock when he saves the valid bid or when he determines the bid is 
not valid“?

I can see only one slight drawback -- unnecessary locks in case the bid 
validation fails -- but that should be a negligible problem, most bid attempts 
are valid (and _if_ they become invalid, then since other bid was entered 
shortly before, which would lead to optimistic exception anyway).

Far as I understand though based on your

===
On 24. 1. 2015, at 0:12, Chuck Hill 
ch...@gevityinc.commailto:ch...@gevityinc.com wrote:
I doubt that lockObject() code in EOF has been run in… maybe forever.  It is 
highly possible that it is causing EOF to get confused and resulting in the 
errors below.  Get rid of the lockObject() calls and see if the problem below 
goes away.
===

I guess the proper answer is „Well we can't use pessimistic row locking at all, 
since EOF does not support it reliably, and that's that.“

Is that right?

Thanks again,
OC


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

2015-02-21 Thread Chuck Hill

I don’t know, I suggest asking on the FrontBase developers list.

On 2015-02-21, 2:55 AM, OC wrote:

Chuck,

On 20. 2. 2015, at 19:37, Chuck Hill 
ch...@gevityinc.commailto:ch...@gevityinc.com wrote:

One way would be to twist the DB to do the complete restraint to me, something 
like to a pseudo-code “inserted_row.attr=MAX(SELECT attr FROM this_table WHERE 
another_attr.isValid) AND couple more similar conditions” -- frankly I am not 
sure whether the database (FrontBase) can do that at all, and if it can, 
definitely I don't know how to.
I think you can do it as a Check constraint.  It needs to be a boolean 
expression, but I am not sure it can include selects.  A quick experiment would 
show if it can.

It looks like FrontBase allows me to use SELECT in check constraints, but I've 
bumped into another problem -- I need also to join to access values from 
another table, and I don't know how to express „column from the row just being 
inserted, not from any other table in the SELECT“?

My constraint expression (considerably simplified for readability) looks like 
this:

(select max(po.C_PRICE) from T_PRICE_OFFER po, T_AUCTION auc where 
po.C_AUCTION_ID=auc.C_UID and po.C_PRICE=auc.C_MAX_PRICE and 
po.C_CREATION_DATEC_CREATION_DATE)C_PRICE

to express a condition “PRICE of the inserted PRICE_OFFER must be higher than 
all PRICEs of all older PRICE_OFFERs belonging to the same auction, whose PRICE 
does not exceed the auction's MAX_PRICE”.

The problem is with the “older PRICE_OFFERs” part (“WHERE ... 
po.C_CREATION_DATEC_CREATION_DATE”) -- FrontBase complains that 
C_CREATION_DATE is ambiguous. Well it is -- all the tables in question contain 
such a column -- but how should I prefix it to tell the server „this is the 
CREATION_DATE of the row which is being inserted“?

Thanks a lot,
OC


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

Chuck,

On 21. 2. 2015, at 20:09, Chuck Hill ch...@gevityinc.com wrote:
 I think it is a fair expectation that EOF may not properly support optimistic

pessimistic, I guess?

 locking.  I am not even sure how to set it up properly.  There are some 
 methods on EOEditingContext and EODatabaseContext, and one the 
 EODatabaseContext Delegate.

Thanks!

One closely related question -- I suppose there is no way to explicitly set up 
the isolation level and locking discipline for a particular transaction 
(differently from the default of the JDBC connexion URL)? Or is there one?

Thanks again and all the best,
OC

 On 2015-02-21, 3:42 AM, OC wrote:
 
 Anyway, back to the original question --
 
 On 20. 2. 2015, at 18:27, OC o...@ocs.cz wrote:
 Actually _this_ should not be weird, this should be quite a normal code; the 
 only requirement is that check-and-save, i.e., conceptually,
 ===
 if (TEST(eo.someRelationship().someAttribute(),newAttributeValue)) {
   def 
 new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
   new.someAttribute=newAttributeValue
   eo.editingContext().saveChanges()
 }
 ===
 so that I can be absolutely sure that nobody stores an attribute value which 
 -- at the moment of COMMITTing the appropriate INSERT -- would not pass the 
 TEST
 
 I don’t think you can make a rock-solid guarantee from the app code level.
 Can't I? That's bad.
 
 -- I have succeeded to consult with my client, and the option of „allowing to 
 save any bid, determine whether it was valid or not in future“ is out.
 
 On the other hand, he again suggests pessimistic locking: „why don't we 
 simply lock the auction row when user reads the data to determine whether his 
 bid is valid, and unlock when he saves the valid bid or when he determines 
 the bid is not valid“?
 
 I can see only one slight drawback -- unnecessary locks in case the bid 
 validation fails -- but that should be a negligible problem, most bid 
 attempts are valid (and _if_ they become invalid, then since other bid was 
 entered shortly before, which would lead to optimistic exception anyway).
 
 Far as I understand though based on your
 
 ===
 On 24. 1. 2015, at 0:12, Chuck Hill ch...@gevityinc.com wrote:
 I doubt that lockObject() code in EOF has been run in… maybe forever.  It is 
 highly possible that it is causing EOF to get confused and resulting in the 
 errors below.  Get rid of the lockObject() calls and see if the problem below 
 goes away.
 ===
 
 I guess the proper answer is „Well we can't use pessimistic row locking at 
 all, since EOF does not support it reliably, and that's that.“
 
 Is that right?
 
 Thanks again,
 OC
 
 


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

2015-02-21 Thread Chuck Hill



On 2015-02-21, 11:17 AM, OC wrote:

Chuck,

On 21. 2. 2015, at 20:09, Chuck Hill 
ch...@gevityinc.commailto:ch...@gevityinc.com wrote:
I think it is a fair expectation that EOF may not properly support optimistic

pessimistic, I guess?

Cough.  Yes.



locking.  I am not even sure how to set it up properly.  There are some methods 
on EOEditingContext and EODatabaseContext, and one the EODatabaseContext 
Delegate.

Thanks!

One closely related question -- I suppose there is no way to explicitly set up 
the isolation level and locking discipline for a particular transaction 
(differently from the default of the JDBC connexion URL)? Or is there one?

You could set up a second EOF stack and set the JDBC url isolation level and 
locking discipline to what you want and use that stack for these transactions.

Chuck


Thanks again and all the best,
OC

On 2015-02-21, 3:42 AM, OC wrote:
Anyway, back to the original question --
On 20. 2. 2015, at 18:27, OC o...@ocs.czmailto:o...@ocs.cz wrote:
Actually _this_ should not be weird, this should be quite a normal code; the 
only requirement is that check-and-save, i.e., conceptually,
===
if (TEST(eo.someRelationship().someAttribute(),newAttributeValue)) {
   def 
new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
   new.someAttribute=newAttributeValue
   eo.editingContext().saveChanges()
}
===
so that I can be absolutely sure that nobody stores an attribute value which -- 
at the moment of COMMITTing the appropriate INSERT -- would not pass the TEST
I don’t think you can make a rock-solid guarantee from the app code level.
Can't I? That's bad.
-- I have succeeded to consult with my client, and the option of „allowing to 
save any bid, determine whether it was valid or not in future“ is out.
On the other hand, he again suggests pessimistic locking: „why don't we simply 
lock the auction row when user reads the data to determine whether his bid is 
valid, and unlock when he saves the valid bid or when he determines the bid is 
not valid“?
I can see only one slight drawback -- unnecessary locks in case the bid 
validation fails -- but that should be a negligible problem, most bid attempts 
are valid (and _if_ they become invalid, then since other bid was entered 
shortly before, which would lead to optimistic exception anyway).
Far as I understand though based on your
===
On 24. 1. 2015, at 0:12, Chuck Hill 
ch...@gevityinc.commailto:ch...@gevityinc.com wrote:
I doubt that lockObject() code in EOF has been run in… maybe forever.  It is 
highly possible that it is causing EOF to get confused and resulting in the 
errors below.  Get rid of the lockObject() calls and see if the problem below 
goes away.
===
I guess the proper answer is „Well we can't use pessimistic row locking at all, 
since EOF does not support it reliably, and that's that.“
Is that right?
Thanks again,
OC


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

2015-02-20 Thread Ramsey Gurley


On Feb 20, 2015, at 12:09 PM, OC o...@ocs.cz wrote:

 it must pass a slightly more complex test than uniqueness:
 
 - when inserted into PRICE_OFFERS table,
 - the newly inserted object must have value in column PRICE, which is higher,
 - than any (max) of the already existing objects in that table, which
 - have YES in a boolean column VALID, and
 - at the same moment, have same value in AUCTION_ID column as the inserted 
 object.
 
 (In fact the real condition is even more complex, but this is the gist of it: 
 consider an auction system, where a new bid added to a particular auction 
 must be higher than all previous valid bids for the same auction.)
 
 Nevertheless, I believe that when we are pursuing the 
 implement-the-behaviour-at-the-application-level way (unlike the check 
 restraint at the DB level), the particular TEST is actually irrelevant. The 
 gist is that it must not be possible to store an object which does not pass 
 TEST -- whatever the TEST tests.

Why is this a requirement? If highest price wins, then you only need to select 
the max price row where price offer date is less than auction end. If a few 
offers get thrown in there out of order, how does that break anything?

 
 See please again the [1] above -- the code must make sure that
 
 (a) when TESTing, the participating objects are a proper snapshot of database 
 contents of some moment in the past
 (b) when saving, the code must make sure that if the values of the snapshot 
 did change, the saving won't happen
 
 That should be sufficient, should it not?
 
 Does it make sense?
 
 Thanks a lot,
 OC
 


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Never save objects which don't pass a test (was: searching for a weird deletion)

2015-02-20 Thread OC

Chuck,

 Actually _this_ should not be weird, this should be quite a normal code; the 
 only requirement is that check-and-save, i.e., conceptually,
 
 ===
 if (TEST(eo.someRelationship().someAttribute(),newAttributeValue)) {
   def 
 new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
   new.someAttribute=newAttributeValue
   eo.editingContext().saveChanges()
 }
 ===
 
 so that I can be absolutely sure that nobody stores an attribute value which 
 -- at the moment of COMMITTing the appropriate INSERT -- would not pass the 
 TEST

Alas, since the TEST is (slightly) more complex than A!=B, I can't use a UNIQUE 
db restraint.

One way would be to twist the DB to do the complete restraint to me, something 
like to a pseudo-code “inserted_row.attr=MAX(SELECT attr FROM this_table WHERE 
another_attr.isValid) AND couple more similar conditions” -- frankly I am not 
sure whether the database (FrontBase) can do that at all, and if it can, 
definitely I don't know how to.

Nevertheless this is an interesting idea which I am going to pursue (if anybody 
happens to know the solution, either how to, or that it is not possible at all, 
of course I'll be grateful for an advice, before I dive into that).

Another way, the one I've tried to exploit so far, was implement the behaviour 
app-side:

 I believe that is the only way to absolutely ensure this.  I don’t think you 
 can make a rock-solid guarantee from the app code level.

Can't I? That's bad.

So far, I thought this very simple concept should be rock-solid, but probably I 
am overlooking something of importance, as so often:

=== eo's entity locks on the someRelationship FK (among others) ===
OSC.lock() // possibly superfluous; simplifies situation by serializing 
intra-instance
try {
  ec.unlock(); ec.lock() //* to make sure we get changes from other ECs now, by 
your excellent advice
  def rel=eo.someRelationship() // in DB there might be a newer value (saved 
meantime by another instance)...
  def attr=rel.someAttribute()  // ... but it is not possible that in DB is an 
_older_ value than this
  if (TEST(attr,newAttributeValue)) {
def 
new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
new.setSomeAttribute(newAttributeValue) // once set, I NEVER change this 
value
eo.addObjectToBothSidesOfRelationshipWithKey(new,'someRelationship')
eo.editingContext().saveChanges() // catching optimistic exceptions and 
repeating the process if they happen
  }
} finally {
  OSC.unlock()
}
===

My reasoning is that
- intra-instance, consistency is ensured by locked (single) OSC and by //* -- I 
am sure that I see the latest eo.someRelationship and its rel.someAttribute 
before saving, and thus the TEST is reliable; my own instance, even with 
concurrent requests, can't do anything wrong
- inter-instance, the optimistic locking based on someRelationship FK should 
prevent saving in case any other instance succeeded to save its own new 
attribute meantime.

What am I overlooking, how can this pattern fail?

In fact, to decrease the probability of the optimistic locking exception, I 
force re-fetch (in my new multi-instance code, not the single-instance old 
one), like this:

===
OSC.lock() // precisely same as above
try {
  ERXEC tempec=ERXEC.newEditingContext()
  tempec.fetchTimestamp=System.currentTimeMillis() // due to this, I don't need 
ec.unlock(); ec.lock(), for...
  def tempeo=eo.localInstanceIn(tempec)
  def rel=tempeo.someRelationship()  // ... whatever was cached in ECs, current 
FK from eo's table gets fetched now
  def attr=rel.someAttribute()   // ... just like its attribute from rel 
target's table
  if (TEST(attr,newAttributeValue)) { // precisely same as above (the only 
difference is that the values are newer...
def new=EOUtilities.createAndInsertInstance(tempec,'SomeRelationshipTarget')
new.setSomeAttribute(newAttributeValue)
tempeo.addObjectToBothSidesOfRelationshipWithKey(new,'someRelationship')
tempec.saveChanges() // ... and thus the probability of optimistic locking 
exception (caused by different relationship FK) is smaller (though of course 
not zero)
  }
} finally {
  OSC.unlock()
}
===

Are even these patters unsafe? Why?

Thanks a big lot,
OC


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

2015-02-20 Thread Chuck Hill



On 2015-02-20, 12:30 PM, Ramsey Gurley wrote:


On Feb 20, 2015, at 12:09 PM, OC o...@ocs.czmailto:o...@ocs.cz wrote:

it must pass a slightly more complex test than uniqueness:
- when inserted into PRICE_OFFERS table,
- the newly inserted object must have value in column PRICE, which is higher,
- than any (max) of the already existing objects in that table, which
- have YES in a boolean column VALID, and
- at the same moment, have same value in AUCTION_ID column as the inserted 
object.
(In fact the real condition is even more complex, but this is the gist of it: 
consider an auction system, where a new bid added to a particular auction must 
be higher than all previous valid bids for the same auction.)
Nevertheless, I believe that when we are pursuing the 
implement-the-behaviour-at-the-application-level way (unlike the check 
restraint at the DB level), the particular TEST is actually irrelevant. The 
gist is that it must not be possible to store an object which does not pass 
TEST -- whatever the TEST tests.

Why is this a requirement? If highest price wins, then you only need to select 
the max price row where price offer date is less than auction end. If a few 
offers get thrown in there out of order, how does that break anything?

That seems to make sense.  You can save the bid, whatever it is, then 
immediately fetch any higher bid.  If there was one, show the user an you were 
just outbid message.

Chuck


See please again the [1] above -- the code must make sure that
(a) when TESTing, the participating objects are a proper snapshot of database 
contents of some moment in the past
(b) when saving, the code must make sure that if the values of the snapshot did 
change, the saving won't happen
That should be sufficient, should it not?
Does it make sense?
Thanks a lot,
OC


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

2015-02-20 Thread Chuck Hill



On 2015-02-20, 9:27 AM, OC wrote:

Chuck,

Actually _this_ should not be weird, this should be quite a normal code; the 
only requirement is that check-and-save, i.e., conceptually,
===
if (TEST(eo.someRelationship().someAttribute(),newAttributeValue)) {
   def 
new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
   new.someAttribute=newAttributeValue
   eo.editingContext().saveChanges()
}
===
so that I can be absolutely sure that nobody stores an attribute value which -- 
at the moment of COMMITTing the appropriate INSERT -- would not pass the TEST

Alas, since the TEST is (slightly) more complex than A!=B, I can't use a UNIQUE 
db restraint.

One way would be to twist the DB to do the complete restraint to me, something 
like to a pseudo-code inserted_row.attr=MAX(SELECT attr FROM this_table WHERE 
another_attr.isValid) AND couple more similar conditions -- frankly I am not 
sure whether the database (FrontBase) can do that at all, and if it can, 
definitely I don't know how to.

I think you can do it as a Check constraint.  It needs to be a boolean 
expression, but I am not sure it can include selects.  A quick experiment would 
show if it can.



Nevertheless this is an interesting idea which I am going to pursue (if anybody 
happens to know the solution, either how to, or that it is not possible at all, 
of course I'll be grateful for an advice, before I dive into that).

Another way, the one I've tried to exploit so far, was implement the behaviour 
app-side:

I believe that is the only way to absolutely ensure this.  I don't think you 
can make a rock-solid guarantee from the app code level.

Can't I? That's bad.

So far, I thought this very simple concept should be rock-solid, but probably I 
am overlooking something of importance, as so often:

=== eo's entity locks on the someRelationship FK (among others) ===
OSC.lock() // possibly superfluous; simplifies situation by serializing 
intra-instance
try {
  ec.unlock(); ec.lock() //* to make sure we get changes from other ECs now, by 
your excellent advice
  def rel=eo.someRelationship() // in DB there might be a newer value (saved 
meantime by another instance)...
  def attr=rel.someAttribute()  // ... but it is not possible that in DB is an 
_older_ value than this
  if (TEST(attr,newAttributeValue)) {
def 
new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
new.setSomeAttribute(newAttributeValue) // once set, I NEVER change this 
value
eo.addObjectToBothSidesOfRelationshipWithKey(new,'someRelationship')
eo.editingContext().saveChanges() // catching optimistic exceptions and 
repeating the process if they happen
  }
} finally {
  OSC.unlock()
}
===

My reasoning is that
- intra-instance, consistency is ensured by locked (single) OSC and by //* -- I 
am sure that I see the latest eo.someRelationship and its rel.someAttribute 
before saving, and thus the TEST is reliable; my own instance, even with 
concurrent requests, can't do anything wrong
- inter-instance, the optimistic locking based on someRelationship FK should 
prevent saving in case any other instance succeeded to save its own new 
attribute meantime.

What am I overlooking, how can this pattern fail?

I am not quite following the requirements.  Is it unique only for this object 
or for all objects?

Chuck



In fact, to decrease the probability of the optimistic locking exception, I 
force re-fetch (in my new multi-instance code, not the single-instance old 
one), like this:

===
OSC.lock() // precisely same as above
try {
  ERXEC tempec=ERXEC.newEditingContext()
  tempec.fetchTimestamp=System.currentTimeMillis() // due to this, I don't need 
ec.unlock(); ec.lock(), for...
  def tempeo=eo.localInstanceIn(tempec)
  def rel=tempeo.someRelationship()  // ... whatever was cached in ECs, current 
FK from eo's table gets fetched now
  def attr=rel.someAttribute()   // ... just like its attribute from rel 
target's table
  if (TEST(attr,newAttributeValue)) { // precisely same as above (the only 
difference is that the values are newer...
def new=EOUtilities.createAndInsertInstance(tempec,'SomeRelationshipTarget')
new.setSomeAttribute(newAttributeValue)
tempeo.addObjectToBothSidesOfRelationshipWithKey(new,'someRelationship')
tempec.saveChanges() // ... and thus the probability of optimistic locking 
exception (caused by different relationship FK) is smaller (though of course 
not zero)
  }
} finally {
  OSC.unlock()
}
===

Are even these patters unsafe? Why?

Thanks a big lot,
OC


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Re: Never save objects which don't pass a test (was: searching for a weird deletion)

2015-02-20 Thread OC

Chuck,

On 20. 2. 2015, at 19:37, Chuck Hill ch...@gevityinc.com wrote:

 Actually _this_ should not be weird, this should be quite a normal code; the 
 only requirement is that check-and-save, i.e., conceptually,
 === [1]
 if (TEST(eo.someRelationship().someAttribute(),newAttributeValue)) {
def 
 new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
new.someAttribute=newAttributeValue
eo.editingContext().saveChanges()
 }
 ===
 so that I can be absolutely sure that nobody stores an attribute value which 
 -- at the moment of COMMITTing the appropriate INSERT -- would not pass the 
 TEST

...

 I believe that is the only way to absolutely ensure this.  I don’t think 
 you can make a rock-solid guarantee from the app code level.
 
 Can't I? That's bad.
 
 So far, I thought this very simple concept should be rock-solid, but 
 probably I am overlooking something of importance, as so often:
 
 === eo's entity locks on the someRelationship FK (among others) ===
 OSC.lock() // possibly superfluous; simplifies situation by serializing 
 intra-instance
 try {
   ec.unlock(); ec.lock() //* to make sure we get changes from other ECs now, 
 by your excellent advice
   def rel=eo.someRelationship() // in DB there might be a newer value (saved 
 meantime by another instance)...
   def attr=rel.someAttribute()  // ... but it is not possible that in DB is 
 an _older_ value than this
   if (TEST(attr,newAttributeValue)) {
 def 
 new=EOUtilities.createAndInsertInstance(eo.editingContext(),'SomeRelationshipTarget')
 new.setSomeAttribute(newAttributeValue) // once set, I NEVER change this 
 value
 eo.addObjectToBothSidesOfRelationshipWithKey(new,'someRelationship')
 eo.editingContext().saveChanges() // catching optimistic exceptions and 
 repeating the process if they happen
   }
 } finally {
   OSC.unlock()
 }
 ===
 
 My reasoning is that
 - intra-instance, consistency is ensured by locked (single) OSC and by //* 
 -- I am sure that I see the latest eo.someRelationship and its 
 rel.someAttribute before saving, and thus the TEST is reliable; my own 
 instance, even with concurrent requests, can't do anything wrong
 - inter-instance, the optimistic locking based on someRelationship FK should 
 prevent saving in case any other instance succeeded to save its own new 
 attribute meantime.
 
 What am I overlooking, how can this pattern fail?
 
 I am not quite following the requirements.  Is it unique only for this object 
 or for all objects?

Sorry I have mislead you by using the term “UNIQUE“. It does not have to be 
unique; it must pass a slightly more complex test than uniqueness:

- when inserted into PRICE_OFFERS table,
- the newly inserted object must have value in column PRICE, which is higher,
- than any (max) of the already existing objects in that table, which
- have YES in a boolean column VALID, and
- at the same moment, have same value in AUCTION_ID column as the inserted 
object.

(In fact the real condition is even more complex, but this is the gist of it: 
consider an auction system, where a new bid added to a particular auction must 
be higher than all previous valid bids for the same auction.)

Nevertheless, I believe that when we are pursuing the 
implement-the-behaviour-at-the-application-level way (unlike the check 
restraint at the DB level), the particular TEST is actually irrelevant. The 
gist is that it must not be possible to store an object which does not pass 
TEST -- whatever the TEST tests.

See please again the [1] above -- the code must make sure that

(a) when TESTing, the participating objects are a proper snapshot of database 
contents of some moment in the past
(b) when saving, the code must make sure that if the values of the snapshot did 
change, the saving won't happen

That should be sufficient, should it not?

Does it make sense?

Thanks a lot,
OC


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Mailing List Test

2014-02-27 Thread Phil Wright


Greetings,
Just a test.

-Phil
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Re: Mailing List Test

2014-02-27 Thread Phil Wright


Greetings Everyone,

Seems like I haven't successfully registered on this list since I 
haven't received my mail below.

How do I register?

-Phil

On 2/28/2014 2:05 AM, Phil Wright wrote:

Greetings,
Just a test.

-Phil


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Re: Mailing List Test

2014-02-27 Thread Aaron Rosenzweig

Phil,

I’m not sure you ever get your own messages.

I see your messages just fine.
AARON ROSENZWEIG / Chat 'n Bike
e:  aa...@chatnbike.com  t:  (301) 956-2319 


On Feb 27, 2014, at 1:18 PM, Phil Wright philipxwri...@gmail.com wrote:

 Greetings Everyone,
 
 Seems like I haven't successfully registered on this list since I haven't 
 received my mail below.
 How do I register?
 
 -Phil
 
 On 2/28/2014 2:05 AM, Phil Wright wrote:
 Greetings,
 Just a test.
 
 -Phil
 
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Test multi-process sync in dev?

2013-10-09 Thread Ken Anderson

All,

I have an app that I want to use groups sync to keep multiple instances up to 
date.  I have it running, but haven't come up with a great way to test.  Is 
there an easier way than doing a typical production setup?  using wotaskd ?

Right now, I test with apache, but with a URL that has -portnum on the end of 
it.  This obviously won't allow me to balance between the two instances 
automatically.

I'm only using direct actions to connect, so I *could* rotate the URL I connect 
to for each transaction, but I'd love to have it work in a more straightforward 
manner.

Any thoughts?

Thanks,
Ken
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Re: Test multi-process sync in dev?

2013-10-09 Thread Chuck Hill

Deploy through Apache on your laptop or test server.  Then use something
like JMeter to simulate load that is editing the EOs.

Chuck






On 2013-10-09 12:06 PM, Ken Anderson kenli...@anderhome.com wrote:

All,

I have an app that I want to use groups sync to keep multiple instances
up to date.  I have it running, but haven't come up with a great way to
test.  Is there an easier way than doing a typical production setup?
using wotaskd ?

Right now, I test with apache, but with a URL that has -portnum on the
end of it.  This obviously won't allow me to balance between the two
instances automatically.

I'm only using direct actions to connect, so I *could* rotate the URL I
connect to for each transaction, but I'd love to have it work in a more
straightforward manner.

Any thoughts?

Thanks,
Ken
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Test that fail randomly with wounit

2013-06-18 Thread Samuel Pelletier

Hi,

I have a test that succeed sometime and fail other times. If I run the jUnit 
source that contain this test, it fail sometime in the loadPermission() method. 
I have no idea where to look at. It is even more strange that sometime, I can 
have 6 successful tests and after 4 failed in a row.

These test are inside a framework project. When I run the tests, I have these 
lines on the console but they do not seems to cause problem with the about 100 
others tests in the project.

- The EOModel 'erprototypes' has an empty connection dictionary.
- The EOModel 'erprototypes' has an empty connection dictionary.
- The EOModel 'KAAccessControl' has an empty connection dictionary.
- The EOModel 'KAAccessControl' has an empty connection dictionary.
- The model 'KAAccessControl' (path: 
file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld)
 cannot be added to model group EOModelGroup ((KAAccessControl, 
file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld),
 (erprototypes, 
file:/Users/sam/work/WonderSource/Frameworks/Core/ERPrototypes/Resources/erprototypes.eomodeld))
 because it already contains a model with that name.

Any idea?

Samuel

RolesFileLoader load a plist file to create and update objects in the database.

Here is a my test source with a single test:

@Rule public MockEditingContext ec = new MockEditingContext();

@Before
public void loadPermissions() {
ERXProperties.setStringForKey(SampleRolesFile, 
RolesFileLoader.rolesFileNamePropertyKey);
RolesFileLoader.loadRolesFile(ec);
}

@Test
public void testReloadPermissions() {
ERXProperties.setStringForKey(SampleRolesFile, 
RolesFileLoader.rolesFileNamePropertyKey);
RolesFileLoader.loadRolesFile(ec);
}

The error stack:

com.webobjects.foundation.NSForwardException 
[java.lang.reflect.InvocationTargetException] 
null:java.lang.reflect.InvocationTargetException
…
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at 
com.webobjects.foundation._NSUtilities.instantiateObjectWithConstructor(_NSUtilities.java:659)
... 32 more
Caused by: java.lang.NullPointerException
at 
com.webobjects.eoaccess.EOModel.createPrototypeCache(EOModel.java:631)
at 
com.webobjects.eoaccess.EOModel.prototypeAttributeNamed(EOModel.java:699)
at 
com.webobjects.eoaccess.ERXModel.prototypeAttributeNamed(ERXModel.java:290)
at com.webobjects.eoaccess.EOAttribute.init(EOAttribute.java:998)
at com.webobjects.eoaccess.EOEntity.attributes(EOEntity.java:816)
at com.webobjects.eoaccess.EOEntity.attributeNamed(EOEntity.java:789)
at com.webobjects.eoaccess.EOEntity.classProperties(EOEntity.java:1098)
at 
com.webobjects.eoaccess.EOEntity._propertyDictionaryInitializer(EOEntity.java:3321)
at 
com.webobjects.eoaccess.EOEntity._newDictionaryForProperties(EOEntity.java:3667)
at 
com.webobjects.eoaccess.EOEntityClassDescription._newDictionaryForProperties(EOEntityClassDescription.java:88)
at 
com.webobjects.eocontrol.EOGenericRecord.__setClassDescription(EOGenericRecord.java:111)
at 
com.webobjects.eocontrol.EOGenericRecord.__setClassDescription(EOGenericRecord.java:100)
at 
com.webobjects.eocontrol.EOGenericRecord.init(EOGenericRecord.java:73)
at er.extensions.eof.ERXGenericRecord.init(ERXGenericRecord.java:106)
at 
com.kaviju.accesscontrol.model.base._KAAccessList.init(_KAAccessList.java:15)
at 
com.kaviju.accesscontrol.model.KAAccessList.init(KAAccessList.java:8)
... 37 more

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Re: Test that fail randomly with wounit

2013-06-18 Thread Chuck Hill

Hi Samuel,

JUnit can/will run tests in a different order each time.  So if your tests 
depend on something else having happened (EOF getting fully initialized, some 
other test running first) you will see random failures like this.  I think it 
an/will run tests in multiple threads too (I use both JUnit and TestNG and 
sometimes mix up their features :-) so concurrency can also cause problems like 
this.


On 2013-06-18, at 2:13 PM, Samuel Pelletier wrote:

 Hi,
 
 I have a test that succeed sometime and fail other times. If I run the jUnit 
 source that contain this test, it fail sometime in the loadPermission() 
 method. I have no idea where to look at. It is even more strange that 
 sometime, I can have 6 successful tests and after 4 failed in a row.
 
 These test are inside a framework project. When I run the tests, I have these 
 lines on the console but they do not seems to cause problem with the about 
 100 others tests in the project.
 
 - The EOModel 'erprototypes' has an empty connection dictionary.
 - The EOModel 'erprototypes' has an empty connection dictionary.

Those are likely to be OK.

 - The EOModel 'KAAccessControl' has an empty connection dictionary.
 - The EOModel 'KAAccessControl' has an empty connection dictionary.

I am guessing you need that model for the permissions testing.  This is likely 
a problem.


 - The model 'KAAccessControl' (path: 
 file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld)
  cannot be added to model group EOModelGroup ((KAAccessControl, 
 file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld),
  (erprototypes, 
 file:/Users/sam/work/WonderSource/Frameworks/Core/ERPrototypes/Resources/erprototypes.eomodeld))
  because it already contains a model with that name.
 
 Any idea?

Do you have multiple EOF stacks (multiple EOObjectStoreCoordinators)?  You 
could be using default* methods that only work with the default stack.  Is 
there a stack trace for that last one to show where duplication model loading 
is having?


 
 Samuel
 
 RolesFileLoader load a plist file to create and update objects in the 
 database.
 
 Here is a my test source with a single test:
 
   @Rule public MockEditingContext ec = new MockEditingContext();
   
   @Before
   public void loadPermissions() {
   ERXProperties.setStringForKey(SampleRolesFile, 
 RolesFileLoader.rolesFileNamePropertyKey);
   RolesFileLoader.loadRolesFile(ec);
   }
 
   @Test
   public void testReloadPermissions() {
   ERXProperties.setStringForKey(SampleRolesFile, 
 RolesFileLoader.rolesFileNamePropertyKey);
   RolesFileLoader.loadRolesFile(ec);
   }
 
 The error stack:
 
 com.webobjects.foundation.NSForwardException 
 [java.lang.reflect.InvocationTargetException] 
 null:java.lang.reflect.InvocationTargetException
   …
 Caused by: java.lang.reflect.InvocationTargetException
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at 
 sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
   at 
 sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
   at 
 com.webobjects.foundation._NSUtilities.instantiateObjectWithConstructor(_NSUtilities.java:659)
   ... 32 more
 Caused by: java.lang.NullPointerException
   at 
 com.webobjects.eoaccess.EOModel.createPrototypeCache(EOModel.java:631)

I think that means a model is being used that is not yet in an EOModelGroup.


Chuck

   at 
 com.webobjects.eoaccess.EOModel.prototypeAttributeNamed(EOModel.java:699)
   at 
 com.webobjects.eoaccess.ERXModel.prototypeAttributeNamed(ERXModel.java:290)
   at com.webobjects.eoaccess.EOAttribute.init(EOAttribute.java:998)
   at com.webobjects.eoaccess.EOEntity.attributes(EOEntity.java:816)
   at com.webobjects.eoaccess.EOEntity.attributeNamed(EOEntity.java:789)
   at com.webobjects.eoaccess.EOEntity.classProperties(EOEntity.java:1098)
   at 
 com.webobjects.eoaccess.EOEntity._propertyDictionaryInitializer(EOEntity.java:3321)
   at 
 com.webobjects.eoaccess.EOEntity._newDictionaryForProperties(EOEntity.java:3667)
   at 
 com.webobjects.eoaccess.EOEntityClassDescription._newDictionaryForProperties(EOEntityClassDescription.java:88)
   at 
 com.webobjects.eocontrol.EOGenericRecord.__setClassDescription(EOGenericRecord.java:111)
   at 
 com.webobjects.eocontrol.EOGenericRecord.__setClassDescription(EOGenericRecord.java:100)
   at 
 com.webobjects.eocontrol.EOGenericRecord.init(EOGenericRecord.java:73)
   at er.extensions.eof.ERXGenericRecord.init(ERXGenericRecord.java:106)
   at 
 com.kaviju.accesscontrol.model.base._KAAccessList.init(_KAAccessList.java:15)
   at 
 com.kaviju.accesscontrol.model.KAAccessList.init(KAAccessList.java:8

Re: Test that fail randomly with wounit

2013-06-18 Thread Samuel Pelletier

Hi Chuck,

 Hi Samuel,
 
 JUnit can/will run tests in a different order each time.  So if your tests 
 depend on something else having happened (EOF getting fully initialized, some 
 other test running first) you will see random failures like this.  I think it 
 an/will run tests in multiple threads too (I use both JUnit and TestNG and 
 sometimes mix up their features :-) so concurrency can also cause problems 
 like this.

I was wondering a multiple test side effect and build a single test class to 
verify and the situation is still there (I put the complete class except import 
and static final declarations in my previous message).

I suspect some concurrency problem but where is the concurrency with a single 
test running? Even the debugger see only one thread.

 
 I have a test that succeed sometime and fail other times. If I run the jUnit 
 source that contain this test, it fail sometime in the loadPermission() 
 method. I have no idea where to look at. It is even more strange that 
 sometime, I can have 6 successful tests and after 4 failed in a row.
 
 These test are inside a framework project. When I run the tests, I have 
 these lines on the console but they do not seems to cause problem with the 
 about 100 others tests in the project.
 
 - The EOModel 'erprototypes' has an empty connection dictionary.
 - The EOModel 'erprototypes' has an empty connection dictionary.
 
 Those are likely to be OK.
 
 - The EOModel 'KAAccessControl' has an empty connection dictionary.
 - The EOModel 'KAAccessControl' has an empty connection dictionary.
 
 I am guessing you need that model for the permissions testing.  This is 
 likely a problem.
 
 - The model 'KAAccessControl' (path: 
 file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld)
  cannot be added to model group EOModelGroup ((KAAccessControl, 
 file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld),
  (erprototypes, 
 file:/Users/sam/work/WonderSource/Frameworks/Core/ERPrototypes/Resources/erprototypes.eomodeld))
  because it already contains a model with that name.
 
 Any idea?
 
 Do you have multiple EOF stacks (multiple EOObjectStoreCoordinators)?  You 
 could be using default* methods that only work with the default stack.  Is 
 there a stack trace for that last one to show where duplication model loading 
 is having?

I added dummy connection information in the model and the 2 empty connection 
dictionary warning for KAAccessControl disappeared but not the … already 
contains a model with that name. warning. Those are printed during the 
MockEditingContext creation. I have no idea that explain why the warning are 
duplicated. 

I do not use multiple EOF stack and anyway in the context of running the test, 
everything is from the sole MockEditingContext defined in the test class.

The NPE is raised on the first EOUtilities.createAndInsertInstance() call 
sometime.

Samuel

 
 
 
 Samuel
 
 RolesFileLoader load a plist file to create and update objects in the 
 database.
 
 Here is a my test source with a single test:
 
  @Rule public MockEditingContext ec = new MockEditingContext();
  
  @Before
  public void loadPermissions() {
  ERXProperties.setStringForKey(SampleRolesFile, 
 RolesFileLoader.rolesFileNamePropertyKey);
  RolesFileLoader.loadRolesFile(ec);
  }
 
  @Test
  public void testReloadPermissions() {
  ERXProperties.setStringForKey(SampleRolesFile, 
 RolesFileLoader.rolesFileNamePropertyKey);
  RolesFileLoader.loadRolesFile(ec);
  }
 
 The error stack:
 
 com.webobjects.foundation.NSForwardException 
 [java.lang.reflect.InvocationTargetException] 
 null:java.lang.reflect.InvocationTargetException
  …
 Caused by: java.lang.reflect.InvocationTargetException
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  at 
 sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
  at 
 sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
  at 
 com.webobjects.foundation._NSUtilities.instantiateObjectWithConstructor(_NSUtilities.java:659)
  ... 32 more
 Caused by: java.lang.NullPointerException
  at 
 com.webobjects.eoaccess.EOModel.createPrototypeCache(EOModel.java:631)
 
 I think that means a model is being used that is not yet in an EOModelGroup.
 
 
 Chuck
 
  at 
 com.webobjects.eoaccess.EOModel.prototypeAttributeNamed(EOModel.java:699)
  at 
 com.webobjects.eoaccess.ERXModel.prototypeAttributeNamed(ERXModel.java:290)
  at com.webobjects.eoaccess.EOAttribute.init(EOAttribute.java:998)
  at com.webobjects.eoaccess.EOEntity.attributes(EOEntity.java:816)
  at com.webobjects.eoaccess.EOEntity.attributeNamed(EOEntity.java:789)
  at com.webobjects.eoaccess.EOEntity.classProperties

Re: Test that fail randomly with wounit

2013-06-18 Thread Samuel Pelletier

Hi Chuck,

I think your last comment was correct: 

 I think that means a model is being used that is not yet in an EOModelGroup.

I added the model name to the new MockEditingContext() call and no more fail to 
date when I run only this test class. If I run the complete project tests, I 
still have intermittent fail at the same place even after adding the model name 
to all the MockEditingContext constructors. I hate intermittent problems! 

Maybe Henrique Prange understand the situation. If the model name is mandatory 
to ensure it's loading before the test run, I suggest to enforce at least one 
name in the constructor of the MockEditingContext.

Samuel


Le 2013-06-18 à 18:10, Chuck Hill ch...@global-village.net a écrit :

 Hi Samuel,
 
 JUnit can/will run tests in a different order each time.  So if your tests 
 depend on something else having happened (EOF getting fully initialized, some 
 other test running first) you will see random failures like this.  I think it 
 an/will run tests in multiple threads too (I use both JUnit and TestNG and 
 sometimes mix up their features :-) so concurrency can also cause problems 
 like this.
 
 
 On 2013-06-18, at 2:13 PM, Samuel Pelletier wrote:
 
 Hi,
 
 I have a test that succeed sometime and fail other times. If I run the jUnit 
 source that contain this test, it fail sometime in the loadPermission() 
 method. I have no idea where to look at. It is even more strange that 
 sometime, I can have 6 successful tests and after 4 failed in a row.
 
 These test are inside a framework project. When I run the tests, I have 
 these lines on the console but they do not seems to cause problem with the 
 about 100 others tests in the project.
 
 - The EOModel 'erprototypes' has an empty connection dictionary.
 - The EOModel 'erprototypes' has an empty connection dictionary.
 
 Those are likely to be OK.
 
 - The EOModel 'KAAccessControl' has an empty connection dictionary.
 - The EOModel 'KAAccessControl' has an empty connection dictionary.
 
 I am guessing you need that model for the permissions testing.  This is 
 likely a problem.
 
 
 - The model 'KAAccessControl' (path: 
 file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld)
  cannot be added to model group EOModelGroup ((KAAccessControl, 
 file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld),
  (erprototypes, 
 file:/Users/sam/work/WonderSource/Frameworks/Core/ERPrototypes/Resources/erprototypes.eomodeld))
  because it already contains a model with that name.
 
 Any idea?
 
 Do you have multiple EOF stacks (multiple EOObjectStoreCoordinators)?  You 
 could be using default* methods that only work with the default stack.  Is 
 there a stack trace for that last one to show where duplication model loading 
 is having?
 
 
 
 Samuel
 
 RolesFileLoader load a plist file to create and update objects in the 
 database.
 
 Here is a my test source with a single test:
 
  @Rule public MockEditingContext ec = new MockEditingContext();
  
  @Before
  public void loadPermissions() {
  ERXProperties.setStringForKey(SampleRolesFile, 
 RolesFileLoader.rolesFileNamePropertyKey);
  RolesFileLoader.loadRolesFile(ec);
  }
 
  @Test
  public void testReloadPermissions() {
  ERXProperties.setStringForKey(SampleRolesFile, 
 RolesFileLoader.rolesFileNamePropertyKey);
  RolesFileLoader.loadRolesFile(ec);
  }
 
 The error stack:
 
 com.webobjects.foundation.NSForwardException 
 [java.lang.reflect.InvocationTargetException] 
 null:java.lang.reflect.InvocationTargetException
  …
 Caused by: java.lang.reflect.InvocationTargetException
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  at 
 sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
  at 
 sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
  at 
 com.webobjects.foundation._NSUtilities.instantiateObjectWithConstructor(_NSUtilities.java:659)
  ... 32 more
 Caused by: java.lang.NullPointerException
  at 
 com.webobjects.eoaccess.EOModel.createPrototypeCache(EOModel.java:631)
 
 I think that means a model is being used that is not yet in an EOModelGroup.
 
 
 Chuck
 
  at 
 com.webobjects.eoaccess.EOModel.prototypeAttributeNamed(EOModel.java:699)
  at 
 com.webobjects.eoaccess.ERXModel.prototypeAttributeNamed(ERXModel.java:290)
  at com.webobjects.eoaccess.EOAttribute.init(EOAttribute.java:998)
  at com.webobjects.eoaccess.EOEntity.attributes(EOEntity.java:816)
  at com.webobjects.eoaccess.EOEntity.attributeNamed(EOEntity.java:789)
  at com.webobjects.eoaccess.EOEntity.classProperties(EOEntity.java:1098)
  at 
 com.webobjects.eoaccess.EOEntity._propertyDictionaryInitializer(EOEntity.java:3321

Re: Test that fail randomly with wounit

2013-06-18 Thread Pascal Robert


Le 2013-06-18 à 20:41, Samuel Pelletier sam...@samkar.com a écrit :

 Hi Chuck,
 
 I think your last comment was correct: 
 
 I think that means a model is being used that is not yet in an EOModelGroup.
 
 I added the model name to the new MockEditingContext() call and no more fail 
 to date when I run only this test class. If I run the complete project tests, 
 I still have intermittent fail at the same place even after adding the model 
 name to all the MockEditingContext constructors. I hate intermittent 
 problems! 
 
 Maybe Henrique Prange understand the situation. If the model name is 
 mandatory to ensure it's loading before the test run, I suggest to enforce at 
 least one name in the constructor of the MockEditingContext.

And lucky you, he will be at WOWODC :-)

 Samuel
 
 
 Le 2013-06-18 à 18:10, Chuck Hill ch...@global-village.net a écrit :
 
 Hi Samuel,
 
 JUnit can/will run tests in a different order each time.  So if your tests 
 depend on something else having happened (EOF getting fully initialized, 
 some other test running first) you will see random failures like this.  I 
 think it an/will run tests in multiple threads too (I use both JUnit and 
 TestNG and sometimes mix up their features :-) so concurrency can also cause 
 problems like this.
 
 
 On 2013-06-18, at 2:13 PM, Samuel Pelletier wrote:
 
 Hi,
 
 I have a test that succeed sometime and fail other times. If I run the 
 jUnit source that contain this test, it fail sometime in the 
 loadPermission() method. I have no idea where to look at. It is even more 
 strange that sometime, I can have 6 successful tests and after 4 failed in 
 a row.
 
 These test are inside a framework project. When I run the tests, I have 
 these lines on the console but they do not seems to cause problem with the 
 about 100 others tests in the project.
 
 - The EOModel 'erprototypes' has an empty connection dictionary.
 - The EOModel 'erprototypes' has an empty connection dictionary.
 
 Those are likely to be OK.
 
 - The EOModel 'KAAccessControl' has an empty connection dictionary.
 - The EOModel 'KAAccessControl' has an empty connection dictionary.
 
 I am guessing you need that model for the permissions testing.  This is 
 likely a problem.
 
 
 - The model 'KAAccessControl' (path: 
 file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld)
  cannot be added to model group EOModelGroup ((KAAccessControl, 
 file:/Users/sam/work/KavijuWO/KAAccessControl/Resources/KAAccessControl.eomodeld),
  (erprototypes, 
 file:/Users/sam/work/WonderSource/Frameworks/Core/ERPrototypes/Resources/erprototypes.eomodeld))
  because it already contains a model with that name.
 
 Any idea?
 
 Do you have multiple EOF stacks (multiple EOObjectStoreCoordinators)?  You 
 could be using default* methods that only work with the default stack.  Is 
 there a stack trace for that last one to show where duplication model 
 loading is having?
 
 
 
 Samuel
 
 RolesFileLoader load a plist file to create and update objects in the 
 database.
 
 Here is a my test source with a single test:
 
 @Rule public MockEditingContext ec = new MockEditingContext();
 
 @Before
 public void loadPermissions() {
 ERXProperties.setStringForKey(SampleRolesFile, 
 RolesFileLoader.rolesFileNamePropertyKey);
 RolesFileLoader.loadRolesFile(ec);
 }
 
 @Test
 public void testReloadPermissions() {
 ERXProperties.setStringForKey(SampleRolesFile, 
 RolesFileLoader.rolesFileNamePropertyKey);
 RolesFileLoader.loadRolesFile(ec);
 }
 
 The error stack:
 
 com.webobjects.foundation.NSForwardException 
 [java.lang.reflect.InvocationTargetException] 
 null:java.lang.reflect.InvocationTargetException
 …
 Caused by: java.lang.reflect.InvocationTargetException
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at 
 sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
 at 
 sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
 at 
 com.webobjects.foundation._NSUtilities.instantiateObjectWithConstructor(_NSUtilities.java:659)
 ... 32 more
 Caused by: java.lang.NullPointerException
 at 
 com.webobjects.eoaccess.EOModel.createPrototypeCache(EOModel.java:631)
 
 I think that means a model is being used that is not yet in an EOModelGroup.
 
 
 Chuck
 
 at 
 com.webobjects.eoaccess.EOModel.prototypeAttributeNamed(EOModel.java:699)
 at 
 com.webobjects.eoaccess.ERXModel.prototypeAttributeNamed(ERXModel.java:290)
 at com.webobjects.eoaccess.EOAttribute.init(EOAttribute.java:998)
 at com.webobjects.eoaccess.EOEntity.attributes(EOEntity.java:816)
 at com.webobjects.eoaccess.EOEntity.attributeNamed(EOEntity.java:789)
 at com.webobjects.eoaccess.EOEntity.classProperties(EOEntity.java:1098

Re: anyone want to test an update to golipse?

 be used 
 with Eclipse 3.8?
 Eclipse 3.8 is only a bugfix release for 3.7, so WOLips 3.7 works with 
 Eclipse 3.8 as well.
 
 Also, if anyone wants to test it, let me know.
 
 Tim
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Re: anyone want to test an update to golipse?

2013-04-26 Thread Bastian Triller

 not sure yet which options might break yet. 
  I'm examining the script, looking at all the plugins that get installed 
  and their associated update sites.
  
  The update site for WOLips is: http://wocommunity.org/wolips/3.7/stable
  
  Do we have an update site for a WOLips 3.8 or should 3.7 stable be used 
  with Eclipse 3.8?
  Eclipse 3.8 is only a bugfix release for 3.7, so WOLips 3.7 works with 
  Eclipse 3.8 as well.
  
  Also, if anyone wants to test it, let me know.
  
  Tim
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Re: anyone want to test an update to golipse?

 to respond
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: Retrying request
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: I/O exception 
 (org.apache.commons.httpclient.NoHttpResponseException) caught when 
 processing request: The server download.eclipse.org failed to respond
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: Retrying request
 Installation failed.
 The installable unit 
 org.zeroturnaround.eclipse.debug.feature.feature.group has not been 
 found.
 Application failed, log file location: 
 /Users/worman/Desktop/eclipse/configuration/1366751366848.log
 Cleaning up …
 
 Tim
 UCLA GSEIS
 
 On Apr 23, 2013, at 11:31 AM, Bastian Triller 
 bastian.tril...@gmail.com wrote:
 
 On Tue, Apr 23, 2013 at 8:13 PM, Tim Worman li...@thetimmy.com wrote:
 I'm looking at updating the Golipse app to install Eclipse/WOLips 3.8. 
 I'm just beginning so I'm not sure yet which options might break yet. 
 I'm examining the script, looking at all the plugins that get installed 
 and their associated update sites.
 
 The update site for WOLips is: http://wocommunity.org/wolips/3.7/stable
 
 Do we have an update site for a WOLips 3.8 or should 3.7 stable be used 
 with Eclipse 3.8?
 Eclipse 3.8 is only a bugfix release for 3.7, so WOLips 3.7 works with 
 Eclipse 3.8 as well.
 
 Also, if anyone wants to test it, let me know.
 
 Tim
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Re: anyone want to test an update to golipse?

Hi David:

The plugin install is done by the P2 director script which should be downloaded 
to /tmp (then deleted at completion). I haven't made any changes in the way 
that works.

I haven't run go_wolips from within my target directory but I'll give it a try 
to test. What's interesting from your report is that the error indicates that 
the path does not point to a folder - which is clearly there in your screenshot.

Tim

On Apr 26, 2013, at 11:54 AM, David Holt programming...@mac.com wrote:

 Hi Tim,
 
 Fortuitously I am installing the tools on a brand new mac. 
 
 I created a Tools folder, put go_wolips inside, cd into Tools and run the 
 following command:
 
 . go_wolips .
 
 The result is that I have a working install of Eclipse, but none of the 
 plugins. Here is the output from my terminal if it is helpful:
 
 Screen Shot 2013-04-26 at 11.51.25 AM.png
 
 
 Screen Shot 2013-04-26 at 11.52.53 AM.png
 
 
 There seems to be a small error in the file path for the plugin installer 
 unless I have done something incorrectly?
 
 Thanks,
 David
 
 
 On 2013-04-26, at 9:07 AM, Tim Worman li...@thetimmy.com wrote:
 
 All:
 
 I forked and updated David LeBer's go_wolips script (which was a fork of 
 Mike Schrag's original). My fork lives here:
 
 https://gist.github.com/timsquared/5454092
 
 It has been updated to download Eclipse 3.8.2 (Juno) and also use the Juno 
 update site. Other updated update sites (and installation units) include: 
 groovy, subversive, m2eclipse, and buckminster. It  runs well on my install 
 of OS X 10.8.X. I am interested to know if these component updates cause 
 anyone issues in their workflow. I do not use these components.
 
 My intention is to update Golipse with this - I also think it is valuable to 
 keep repos of both Golipse and the embedded script for flexibility. It'd 
 probably be a good idea to move this script repo to the WOCommunity GitHub. 
 It also may be a good idea to move the P2 director script from Mike Schrag's 
 repo to WOCommunity. It is called from within go_wolips. While it works 
 great as is, future changes to Eclipse (or P2 Equinox) could impact it.
 
 Tim
 UCLA GSEIS
 
 On Apr 24, 2013, at 10:42 AM, Tim Worman li...@thetimmy.com wrote:
 
 Awesome, thanks David. I knew it was a wrapper for the embedded script and 
 I was about to go down the road of troubleshooting it. But if all we need 
 is to drop an update script in, that's great.
 
 If it's helpful, I will probably still invest some time to get familiar 
 with the script and how p2 works.
 
 Tim
 
 On Apr 24, 2013, at 10:32 AM, David LeBer dleber_wo...@codeferous.com 
 wrote:
 
 I created Golipse as just a cocoa wrapper around the go_wolips script that 
 Mike S created.
 
 This is my clone of his gist: https://gist.github.com/rebeld/622437
 
 It's probably out of sync with the app at this point. I don't know if 
 there is a wocommunity gist version of it.
 
 Anyway, you should be able to run it just from the command line, tweak it 
 until it works, and then replace the script in the project.
 
 D
 
 --
 David LeBer
 Codeferous Software
 
 On 2013-04-24, at 12:43 PM, Tim Worman li...@thetimmy.com wrote:
 
 OK, I'm learning more abut how this works. The P2 installer should be 
 part of the eclipse sdk download. So, to answer your question, the 
 requests probably do come from java. They may be timing out.
 
 I'm gonna dig in and learn about this a bit in the hopes that I can serve 
 the community by understanding how it works. I'm gonna start testing 
 pieces of the script.
 
 If anyone has already looked into this or has some other reason I 
 shouldn't invest time in this, let me know. Anyone who wants to assist, 
 message me.
 
 Tim
 UCLA GSEIS
 
 On Apr 23, 2013, at 10:18 PM, Bastian Triller bastian.tril...@gmail.com 
 wrote:
 
 Are these requests to d.e.o from java? Do they timeout? If that's the 
 case, try adding -Djava.net.preferIPv4Stack=true to eclipse.ini or to 
 the java commandline.
 
 Am 23.04.2013 23:26 schrieb Tim Worman li...@thetimmy.com:
 Well, this is what a drop-in replacement of Eclipse 3.8.2 download with 
 the same updates yields. Looks like some of the update sites aren't 
 working. The logging doesn't report which items it is failing to get. 
 Neither wolips nor workspacemechanic are in the plugins folder - so it 
 looks like those definitely failed. Possibly the issue is actually that 
 3.8 requires an updated P2 script. Actually, I think the result is the 
 same with the current Golipse(3.7) - so I'd say it is broken.
 
 Downloading and Installing the recommended Eclipse plugins ...
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: I/O exception 
 (org.apache.commons.httpclient.NoHttpResponseException) caught when 
 processing request: The server download.eclipse.org failed to respond
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: Retrying request
 Apr 23, 2013 2:10:50 PM

Re: anyone want to test an update to golipse?

It only works with the full path as an argument. I am going to insert a check 
for . though and I will push the change up. It's a reasonable thing to check 
for and replace.

You could do this now though without the change:

. go_wolips `pwd`

Tim

On Apr 26, 2013, at 12:20 PM, Tim Worman li...@thetimmy.com wrote:

 Hi David:
 
 The plugin install is done by the P2 director script which should be 
 downloaded to /tmp (then deleted at completion). I haven't made any changes 
 in the way that works.
 
 I haven't run go_wolips from within my target directory but I'll give it a 
 try to test. What's interesting from your report is that the error indicates 
 that the path does not point to a folder - which is clearly there in your 
 screenshot.
 
 Tim
 
 On Apr 26, 2013, at 11:54 AM, David Holt programming...@mac.com wrote:
 
 Hi Tim,
 
 Fortuitously I am installing the tools on a brand new mac. 
 
 I created a Tools folder, put go_wolips inside, cd into Tools and run the 
 following command:
 
 . go_wolips .
 
 The result is that I have a working install of Eclipse, but none of the 
 plugins. Here is the output from my terminal if it is helpful:
 
 Screen Shot 2013-04-26 at 11.51.25 AM.png
 
 
 Screen Shot 2013-04-26 at 11.52.53 AM.png
 
 
 There seems to be a small error in the file path for the plugin installer 
 unless I have done something incorrectly?
 
 Thanks,
 David
 
 
 On 2013-04-26, at 9:07 AM, Tim Worman li...@thetimmy.com wrote:
 
 All:
 
 I forked and updated David LeBer's go_wolips script (which was a fork of 
 Mike Schrag's original). My fork lives here:
 
 https://gist.github.com/timsquared/5454092
 
 It has been updated to download Eclipse 3.8.2 (Juno) and also use the Juno 
 update site. Other updated update sites (and installation units) include: 
 groovy, subversive, m2eclipse, and buckminster. It  runs well on my install 
 of OS X 10.8.X. I am interested to know if these component updates cause 
 anyone issues in their workflow. I do not use these components.
 
 My intention is to update Golipse with this - I also think it is valuable 
 to keep repos of both Golipse and the embedded script for flexibility. It'd 
 probably be a good idea to move this script repo to the WOCommunity GitHub. 
 It also may be a good idea to move the P2 director script from Mike 
 Schrag's repo to WOCommunity. It is called from within go_wolips. While it 
 works great as is, future changes to Eclipse (or P2 Equinox) could impact 
 it.
 
 Tim
 UCLA GSEIS
 
 On Apr 24, 2013, at 10:42 AM, Tim Worman li...@thetimmy.com wrote:
 
 Awesome, thanks David. I knew it was a wrapper for the embedded script and 
 I was about to go down the road of troubleshooting it. But if all we need 
 is to drop an update script in, that's great.
 
 If it's helpful, I will probably still invest some time to get familiar 
 with the script and how p2 works.
 
 Tim
 
 On Apr 24, 2013, at 10:32 AM, David LeBer dleber_wo...@codeferous.com 
 wrote:
 
 I created Golipse as just a cocoa wrapper around the go_wolips script 
 that Mike S created.
 
 This is my clone of his gist: https://gist.github.com/rebeld/622437
 
 It's probably out of sync with the app at this point. I don't know if 
 there is a wocommunity gist version of it.
 
 Anyway, you should be able to run it just from the command line, tweak it 
 until it works, and then replace the script in the project.
 
 D
 
 --
 David LeBer
 Codeferous Software
 
 On 2013-04-24, at 12:43 PM, Tim Worman li...@thetimmy.com wrote:
 
 OK, I'm learning more abut how this works. The P2 installer should be 
 part of the eclipse sdk download. So, to answer your question, the 
 requests probably do come from java. They may be timing out.
 
 I'm gonna dig in and learn about this a bit in the hopes that I can 
 serve the community by understanding how it works. I'm gonna start 
 testing pieces of the script.
 
 If anyone has already looked into this or has some other reason I 
 shouldn't invest time in this, let me know. Anyone who wants to assist, 
 message me.
 
 Tim
 UCLA GSEIS
 
 On Apr 23, 2013, at 10:18 PM, Bastian Triller 
 bastian.tril...@gmail.com wrote:
 
 Are these requests to d.e.o from java? Do they timeout? If that's the 
 case, try adding -Djava.net.preferIPv4Stack=true to eclipse.ini or to 
 the java commandline.
 
 Am 23.04.2013 23:26 schrieb Tim Worman li...@thetimmy.com:
 Well, this is what a drop-in replacement of Eclipse 3.8.2 download with 
 the same updates yields. Looks like some of the update sites aren't 
 working. The logging doesn't report which items it is failing to get. 
 Neither wolips nor workspacemechanic are in the plugins folder - so it 
 looks like those definitely failed. Possibly the issue is actually that 
 3.8 requires an updated P2 script. Actually, I think the result is the 
 same with the current Golipse(3.7) - so I'd say it is broken.
 
 Downloading and Installing the recommended Eclipse plugins ...
 Apr 23, 2013 2:10:26 PM

Re: anyone want to test an update to golipse?

2013-04-24 Thread Tim Worman

OK, I'm learning more abut how this works. The P2 installer should be part of 
the eclipse sdk download. So, to answer your question, the requests probably do 
come from java. They may be timing out.

I'm gonna dig in and learn about this a bit in the hopes that I can serve the 
community by understanding how it works. I'm gonna start testing pieces of the 
script.

If anyone has already looked into this or has some other reason I shouldn't 
invest time in this, let me know. Anyone who wants to assist, message me.

Tim
UCLA GSEIS

On Apr 23, 2013, at 10:18 PM, Bastian Triller bastian.tril...@gmail.com wrote:

 Are these requests to d.e.o from java? Do they timeout? If that's the case, 
 try adding -Djava.net.preferIPv4Stack=true to eclipse.ini or to the java 
 commandline.
 
 Am 23.04.2013 23:26 schrieb Tim Worman li...@thetimmy.com:
 Well, this is what a drop-in replacement of Eclipse 3.8.2 download with the 
 same updates yields. Looks like some of the update sites aren't working. The 
 logging doesn't report which items it is failing to get. Neither wolips nor 
 workspacemechanic are in the plugins folder - so it looks like those 
 definitely failed. Possibly the issue is actually that 3.8 requires an 
 updated P2 script. Actually, I think the result is the same with the current 
 Golipse(3.7) - so I'd say it is broken.
 
 Downloading and Installing the recommended Eclipse plugins ...
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: I/O exception (org.apache.commons.httpclient.NoHttpResponseException) 
 caught when processing request: The server download.eclipse.org failed to 
 respond
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: Retrying request
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: I/O exception (org.apache.commons.httpclient.NoHttpResponseException) 
 caught when processing request: The server download.eclipse.org failed to 
 respond
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: Retrying request
 Installation failed.
 The installable unit org.zeroturnaround.eclipse.debug.feature.feature.group 
 has not been found.
 Application failed, log file location: 
 /Users/worman/Desktop/eclipse/configuration/1366751366848.log
 Cleaning up …
 
 Tim
 UCLA GSEIS
 
 On Apr 23, 2013, at 11:31 AM, Bastian Triller bastian.tril...@gmail.com 
 wrote:
 
  On Tue, Apr 23, 2013 at 8:13 PM, Tim Worman li...@thetimmy.com wrote:
  I'm looking at updating the Golipse app to install Eclipse/WOLips 3.8. I'm 
  just beginning so I'm not sure yet which options might break yet. I'm 
  examining the script, looking at all the plugins that get installed and 
  their associated update sites.
 
  The update site for WOLips is: http://wocommunity.org/wolips/3.7/stable
 
  Do we have an update site for a WOLips 3.8 or should 3.7 stable be used 
  with Eclipse 3.8?
  Eclipse 3.8 is only a bugfix release for 3.7, so WOLips 3.7 works with 
  Eclipse 3.8 as well.
 
  Also, if anyone wants to test it, let me know.
 
  Tim
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Re: anyone want to test an update to golipse?

2013-04-24 Thread David LeBer

I created Golipse as just a cocoa wrapper around the go_wolips script that Mike 
S created.

This is my clone of his gist: https://gist.github.com/rebeld/622437

It's probably out of sync with the app at this point. I don't know if there is 
a wocommunity gist version of it.

Anyway, you should be able to run it just from the command line, tweak it until 
it works, and then replace the script in the project.

D

--
David LeBer
Codeferous Software

On 2013-04-24, at 12:43 PM, Tim Worman li...@thetimmy.com wrote:

 OK, I'm learning more abut how this works. The P2 installer should be part of 
 the eclipse sdk download. So, to answer your question, the requests probably 
 do come from java. They may be timing out.
 
 I'm gonna dig in and learn about this a bit in the hopes that I can serve the 
 community by understanding how it works. I'm gonna start testing pieces of 
 the script.
 
 If anyone has already looked into this or has some other reason I shouldn't 
 invest time in this, let me know. Anyone who wants to assist, message me.
 
 Tim
 UCLA GSEIS
 
 On Apr 23, 2013, at 10:18 PM, Bastian Triller bastian.tril...@gmail.com 
 wrote:
 
 Are these requests to d.e.o from java? Do they timeout? If that's the case, 
 try adding -Djava.net.preferIPv4Stack=true to eclipse.ini or to the java 
 commandline.
 
 Am 23.04.2013 23:26 schrieb Tim Worman li...@thetimmy.com:
 Well, this is what a drop-in replacement of Eclipse 3.8.2 download with the 
 same updates yields. Looks like some of the update sites aren't working. The 
 logging doesn't report which items it is failing to get. Neither wolips nor 
 workspacemechanic are in the plugins folder - so it looks like those 
 definitely failed. Possibly the issue is actually that 3.8 requires an 
 updated P2 script. Actually, I think the result is the same with the current 
 Golipse(3.7) - so I'd say it is broken.
 
 Downloading and Installing the recommended Eclipse plugins ...
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: I/O exception (org.apache.commons.httpclient.NoHttpResponseException) 
 caught when processing request: The server download.eclipse.org failed to 
 respond
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: Retrying request
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: I/O exception (org.apache.commons.httpclient.NoHttpResponseException) 
 caught when processing request: The server download.eclipse.org failed to 
 respond
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: Retrying request
 Installation failed.
 The installable unit org.zeroturnaround.eclipse.debug.feature.feature.group 
 has not been found.
 Application failed, log file location: 
 /Users/worman/Desktop/eclipse/configuration/1366751366848.log
 Cleaning up …
 
 Tim
 UCLA GSEIS
 
 On Apr 23, 2013, at 11:31 AM, Bastian Triller bastian.tril...@gmail.com 
 wrote:
 
 On Tue, Apr 23, 2013 at 8:13 PM, Tim Worman li...@thetimmy.com wrote:
 I'm looking at updating the Golipse app to install Eclipse/WOLips 3.8. I'm 
 just beginning so I'm not sure yet which options might break yet. I'm 
 examining the script, looking at all the plugins that get installed and 
 their associated update sites.
 
 The update site for WOLips is: http://wocommunity.org/wolips/3.7/stable
 
 Do we have an update site for a WOLips 3.8 or should 3.7 stable be used 
 with Eclipse 3.8?
 Eclipse 3.8 is only a bugfix release for 3.7, so WOLips 3.7 works with 
 Eclipse 3.8 as well.
 
 Also, if anyone wants to test it, let me know.
 
 Tim
 ___
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Re: anyone want to test an update to golipse?

2013-04-24 Thread Tim Worman

Awesome, thanks David. I knew it was a wrapper for the embedded script and I 
was about to go down the road of troubleshooting it. But if all we need is to 
drop an update script in, that's great.

If it's helpful, I will probably still invest some time to get familiar with 
the script and how p2 works.

Tim

On Apr 24, 2013, at 10:32 AM, David LeBer dleber_wo...@codeferous.com wrote:

 I created Golipse as just a cocoa wrapper around the go_wolips script that 
 Mike S created.
 
 This is my clone of his gist: https://gist.github.com/rebeld/622437
 
 It's probably out of sync with the app at this point. I don't know if there 
 is a wocommunity gist version of it.
 
 Anyway, you should be able to run it just from the command line, tweak it 
 until it works, and then replace the script in the project.
 
 D
 
 --
 David LeBer
 Codeferous Software
 
 On 2013-04-24, at 12:43 PM, Tim Worman li...@thetimmy.com wrote:
 
 OK, I'm learning more abut how this works. The P2 installer should be part 
 of the eclipse sdk download. So, to answer your question, the requests 
 probably do come from java. They may be timing out.
 
 I'm gonna dig in and learn about this a bit in the hopes that I can serve 
 the community by understanding how it works. I'm gonna start testing pieces 
 of the script.
 
 If anyone has already looked into this or has some other reason I shouldn't 
 invest time in this, let me know. Anyone who wants to assist, message me.
 
 Tim
 UCLA GSEIS
 
 On Apr 23, 2013, at 10:18 PM, Bastian Triller bastian.tril...@gmail.com 
 wrote:
 
 Are these requests to d.e.o from java? Do they timeout? If that's the case, 
 try adding -Djava.net.preferIPv4Stack=true to eclipse.ini or to the java 
 commandline.
 
 Am 23.04.2013 23:26 schrieb Tim Worman li...@thetimmy.com:
 Well, this is what a drop-in replacement of Eclipse 3.8.2 download with the 
 same updates yields. Looks like some of the update sites aren't working. 
 The logging doesn't report which items it is failing to get. Neither wolips 
 nor workspacemechanic are in the plugins folder - so it looks like those 
 definitely failed. Possibly the issue is actually that 3.8 requires an 
 updated P2 script. Actually, I think the result is the same with the 
 current Golipse(3.7) - so I'd say it is broken.
 
 Downloading and Installing the recommended Eclipse plugins ...
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: I/O exception (org.apache.commons.httpclient.NoHttpResponseException) 
 caught when processing request: The server download.eclipse.org failed to 
 respond
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: Retrying request
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: I/O exception (org.apache.commons.httpclient.NoHttpResponseException) 
 caught when processing request: The server download.eclipse.org failed to 
 respond
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
 executeWithRetry
 INFO: Retrying request
 Installation failed.
 The installable unit org.zeroturnaround.eclipse.debug.feature.feature.group 
 has not been found.
 Application failed, log file location: 
 /Users/worman/Desktop/eclipse/configuration/1366751366848.log
 Cleaning up …
 
 Tim
 UCLA GSEIS
 
 On Apr 23, 2013, at 11:31 AM, Bastian Triller bastian.tril...@gmail.com 
 wrote:
 
 On Tue, Apr 23, 2013 at 8:13 PM, Tim Worman li...@thetimmy.com wrote:
 I'm looking at updating the Golipse app to install Eclipse/WOLips 3.8. I'm 
 just beginning so I'm not sure yet which options might break yet. I'm 
 examining the script, looking at all the plugins that get installed and 
 their associated update sites.
 
 The update site for WOLips is: http://wocommunity.org/wolips/3.7/stable
 
 Do we have an update site for a WOLips 3.8 or should 3.7 stable be used 
 with Eclipse 3.8?
 Eclipse 3.8 is only a bugfix release for 3.7, so WOLips 3.7 works with 
 Eclipse 3.8 as well.
 
 Also, if anyone wants to test it, let me know.
 
 Tim
 ___
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anyone want to test an update to golipse?

2013-04-23 Thread Tim Worman

I'm looking at updating the Golipse app to install Eclipse/WOLips 3.8. I'm just 
beginning so I'm not sure yet which options might break yet. I'm examining the 
script, looking at all the plugins that get installed and their associated 
update sites.

The update site for WOLips is: http://wocommunity.org/wolips/3.7/stable

Do we have an update site for a WOLips 3.8 or should 3.7 stable be used with 
Eclipse 3.8?

Also, if anyone wants to test it, let me know.

Tim
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Re: anyone want to test an update to golipse?

2013-04-23 Thread Bastian Triller

On Tue, Apr 23, 2013 at 8:13 PM, Tim Worman li...@thetimmy.com wrote:

 I'm looking at updating the Golipse app to install Eclipse/WOLips 3.8. I'm
 just beginning so I'm not sure yet which options might break yet. I'm
 examining the script, looking at all the plugins that get installed and
 their associated update sites.

 The update site for WOLips is: http://wocommunity.org/wolips/3.7/stable

 Do we have an update site for a WOLips 3.8 or should 3.7 stable be used
 with Eclipse 3.8?

Eclipse 3.8 is only a bugfix release for 3.7, so WOLips 3.7 works with
Eclipse 3.8 as well.


 Also, if anyone wants to test it, let me know.

 Tim
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Re: anyone want to test an update to golipse?

2013-04-23 Thread Tim Worman

Well, this is what a drop-in replacement of Eclipse 3.8.2 download with the 
same updates yields. Looks like some of the update sites aren't working. The 
logging doesn't report which items it is failing to get. Neither wolips nor 
workspacemechanic are in the plugins folder - so it looks like those definitely 
failed. Possibly the issue is actually that 3.8 requires an updated P2 script. 
Actually, I think the result is the same with the current Golipse(3.7) - so I'd 
say it is broken.

Downloading and Installing the recommended Eclipse plugins ...
Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
executeWithRetry
INFO: I/O exception (org.apache.commons.httpclient.NoHttpResponseException) 
caught when processing request: The server download.eclipse.org failed to 
respond
Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector 
executeWithRetry
INFO: Retrying request
Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
executeWithRetry
INFO: I/O exception (org.apache.commons.httpclient.NoHttpResponseException) 
caught when processing request: The server download.eclipse.org failed to 
respond
Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector 
executeWithRetry
INFO: Retrying request
Installation failed.
The installable unit org.zeroturnaround.eclipse.debug.feature.feature.group has 
not been found.
Application failed, log file location: 
/Users/worman/Desktop/eclipse/configuration/1366751366848.log
Cleaning up …

Tim
UCLA GSEIS

On Apr 23, 2013, at 11:31 AM, Bastian Triller bastian.tril...@gmail.com wrote:

 On Tue, Apr 23, 2013 at 8:13 PM, Tim Worman li...@thetimmy.com wrote:
 I'm looking at updating the Golipse app to install Eclipse/WOLips 3.8. I'm 
 just beginning so I'm not sure yet which options might break yet. I'm 
 examining the script, looking at all the plugins that get installed and their 
 associated update sites.
 
 The update site for WOLips is: http://wocommunity.org/wolips/3.7/stable
 
 Do we have an update site for a WOLips 3.8 or should 3.7 stable be used with 
 Eclipse 3.8?
 Eclipse 3.8 is only a bugfix release for 3.7, so WOLips 3.7 works with 
 Eclipse 3.8 as well.
 
 Also, if anyone wants to test it, let me know.
 
 Tim
  ___
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Re: anyone want to test an update to golipse?

2013-04-23 Thread Bastian Triller

Are these requests to d.e.o from java? Do they timeout? If that's the case,
try adding -Djava.net.preferIPv4Stack=true to eclipse.ini or to the java
commandline.
Am 23.04.2013 23:26 schrieb Tim Worman li...@thetimmy.com:

 Well, this is what a drop-in replacement of Eclipse 3.8.2 download with
 the same updates yields. Looks like some of the update sites aren't
 working. The logging doesn't report which items it is failing to get.
 Neither wolips nor workspacemechanic are in the plugins folder - so it
 looks like those definitely failed. Possibly the issue is actually that 3.8
 requires an updated P2 script. Actually, I think the result is the same
 with the current Golipse(3.7) - so I'd say it is broken.

 Downloading and Installing the recommended Eclipse plugins ...
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector
 executeWithRetry
 INFO: I/O exception
 (org.apache.commons.httpclient.NoHttpResponseException) caught when
 processing request: The server download.eclipse.org failed to respond
 Apr 23, 2013 2:10:26 PM org.apache.commons.httpclient.HttpMethodDirector
 executeWithRetry
 INFO: Retrying request
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector
 executeWithRetry
 INFO: I/O exception
 (org.apache.commons.httpclient.NoHttpResponseException) caught when
 processing request: The server download.eclipse.org failed to respond
 Apr 23, 2013 2:10:50 PM org.apache.commons.httpclient.HttpMethodDirector
 executeWithRetry
 INFO: Retrying request
 Installation failed.
 The installable unit
 org.zeroturnaround.eclipse.debug.feature.feature.group has not been found.
 Application failed, log file location:
 /Users/worman/Desktop/eclipse/configuration/1366751366848.log
 Cleaning up …

 Tim
 UCLA GSEIS

 On Apr 23, 2013, at 11:31 AM, Bastian Triller bastian.tril...@gmail.com
 wrote:

  On Tue, Apr 23, 2013 at 8:13 PM, Tim Worman li...@thetimmy.com wrote:
  I'm looking at updating the Golipse app to install Eclipse/WOLips 3.8.
 I'm just beginning so I'm not sure yet which options might break yet. I'm
 examining the script, looking at all the plugins that get installed and
 their associated update sites.
 
  The update site for WOLips is: http://wocommunity.org/wolips/3.7/stable
 
  Do we have an update site for a WOLips 3.8 or should 3.7 stable be used
 with Eclipse 3.8?
  Eclipse 3.8 is only a bugfix release for 3.7, so WOLips 3.7 works with
 Eclipse 3.8 as well.
 
  Also, if anyone wants to test it, let me know.
 
  Tim
   ___
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test, please ignore

2013-01-29 Thread Musall Maik

bounce test
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test - ignore

2012-12-20 Thread Kieran Kelleher

test - ignore
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test, please ignore

2012-12-13 Thread Patrick Middleton


test, please ignore

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test

2012-08-15 Thread Markus Ruggiero

TEST please ignore

(have not received anything from the apple list server for two days)
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how open database connection for test

2012-04-16 Thread g.alexandre

hi,
I want open database connection for create unit testing initialization with 
database access. 
I have test:

@Test
public void test(){
 ERXExtensions.initApp(Application.class, new String[0]);
 EOModel model = new EOModel(new 
URL(file:///Users/dev1/Documents/head/fitTest/ObjetsMetierCariatides/build/ObjetsMetierCariatides.framework/Resources/ModeleInitialisationDictionnaire.eomodeld));

this.connexionProperties = new 
NSMutableDictionary(model.connectionDictionary());
this.tconnexionProperties.addEntriesFromDictionary(new 
NSDictionary(new Object[] {
,
,
jdbc:oracle:thin:@xxx.xxx.xxx.xxx::SID,
oracle.jdbc.driver.OracleDriver,
MyOraclePlugIn
}, new Object[] {
username,
password,
URL,
driver,
plugin
}));

model.setConnectionDictionary(this.connexionProperties);

EOModelGroup.defaultGroup().addModel(model);
}

and when i execute the last line i have:

avr. 16 14:02:54 test[-1] WARN  er.extensions.eof.ERXModelGroup  - The EOModel 
'erprototypes' has an empty connection dictionary.
avr. 16 14:02:54 test[-1] WARN  er.extensions.eof.ERXModelGroup  - The EOModel 
'erprototypes' has an empty connection dictionary.
avr. 16 14:02:54 test[-1] ERROR er.extensions.eof.ERXEntityClassDescription  - 
Error registering model: EOMODELNAME
ClassNotFoundException: CLASSNAME
  at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
  at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
  at java.lang.Class.forName0(Native Method)
  at java.lang.Class.forName(Class.java:169)
  at 
er.extensions.eof.ERXEntityClassDescription$Factory.registerDescriptionForEntity(ERXEntityClassDescription.java:580)
  at 
er.extensions.eof.ERXEntityClassDescription$Factory.registerDescriptionForEntitiesInModel(ERXEntityClassDescription.java:534)
  at 
er.extensions.eof.ERXEntityClassDescription$Factory.modelWasAdded(ERXEntityClassDescription.java:343)
 ... skipped 8 stack elements
  at er.extensions.eof.ERXModelGroup.addModel(ERXModelGroup.java:445)
  at er.extensions.eof.ERXModelGroup.addModelWithPathURL(ERXModelGroup.java:537)
  at 
er.extensions.eof.ERXModelGroup.loadModelsFromLoadedBundles(ERXModelGroup.java:271)
  at er.extensions.ERXExtensions.defaultModelGroup(ERXExtensions.java:145)
 ... skipped 5 stack elements
  at com.webobjects.foundation._NSDelegate._perform(_NSDelegate.java:225)
  at com.webobjects.foundation._NSDelegate.perform(_NSDelegate.java:158)
  at com.webobjects.eoaccess.EOModelGroup.defaultGroup(EOModelGroup.java:365)
  at your.app.testApplication.test(testApplication.java:118)
 ... skipped 4 stack elements
  at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
  at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
  at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
  at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
  at 
org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
  at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
  at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
  at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
  at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
  at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
  at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
  at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
  at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
  at 
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
  at 
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
  at 
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
  at 
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
  at 
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
  at 
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

but the class CLASSNAME exist so i don't know if the problem is a 
ClassNotFoundException. And i don't know if the database access is correctly 
opened.


best regards G.ALEXANDRE
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Re: how open database connection for test

2012-04-16 Thread Alexis Tual

Hi,
why do you have to load a model ?
When needed, Wonder should load the models it founds in the classpath. If
you want to override the connection dicitonnary, you can just set the right
Wonder properties :
http://wiki.wocommunity.org/display/WO/The+EOModel#TheEOModel-ConnectionDictionary

Cheers,

Alex

2012/4/17 g.alexandre g.alexan...@symaris.com

 hi,
 I want open database connection for create unit testing initialization
 with database access.
 I have test:

 @Test
 public void test(){
  ERXExtensions.initApp(Application.*class*, *new* String[0]);
  EOModel model = *new* EOModel(*new* URL(
 file:///Users/dev1/Documents/head/fitTest/ObjetsMetierCariatides/build/ObjetsMetierCariatides.framework/Resources/ModeleInitialisationDictionnaire.eomodeld
 ));

 *this*.connexionProperties = 
 *new*NSMutableDictionary(model.connectionDictionary())
 ;
 
 *this*.tconnexionProperties.addEntriesFromDictionary(*new*NSDictionary(
 *new* Object[] {
 ,
 ,
 jdbc:oracle:thin:@xxx.xxx.xxx.xxx::SID,
 oracle.jdbc.driver.OracleDriver,
 MyOraclePlugIn
 }, *new* Object[] {
 username,
 password,
 URL,
 driver,
 plugin
 }));

 model.setConnectionDictionary(*this*.connexionProperties);

 EOModelGroup.defaultGroup().addModel(model);
 }

 and when i execute the last line i have:

 avr. 16 14:02:54 test[-1] WARN  er.extensions.eof.ERXModelGroup  - The
 EOModel 'erprototypes' has an empty connection dictionary.
 avr. 16 14:02:54 test[-1] WARN  er.extensions.eof.ERXModelGroup  - The
 EOModel 'erprototypes' has an empty connection dictionary.
 avr. 16 14:02:54 test[-1] ERROR
 er.extensions.eof.ERXEntityClassDescription  - Error registering model:
 EOMODELNAME
 ClassNotFoundException: CLASSNAME
   at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
   at java.security.AccessController.doPrivileged(Native Method)
   at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
   at java.lang.Class.forName0(Native Method)
   at java.lang.Class.forName(Class.java:169)
   at
 er.extensions.eof.ERXEntityClassDescription$Factory.registerDescriptionForEntity(
 ERXEntityClassDescription.java:580)
   at
 er.extensions.eof.ERXEntityClassDescription$Factory.registerDescriptionForEntitiesInModel(
 ERXEntityClassDescription.java:534)
   at er.extensions.eof.ERXEntityClassDescription$Factory.modelWasAdded(
 ERXEntityClassDescription.java:343)
  ... skipped 8 stack elements
   at er.extensions.eof.ERXModelGroup.addModel(ERXModelGroup.java:445)
   at er.extensions.eof.ERXModelGroup.addModelWithPathURL(
 ERXModelGroup.java:537)
   at er.extensions.eof.ERXModelGroup.loadModelsFromLoadedBundles(
 ERXModelGroup.java:271)
   at er.extensions.ERXExtensions.defaultModelGroup(ERXExtensions.java:145)
  ... skipped 5 stack elements
   at com.webobjects.foundation._NSDelegate._perform(_NSDelegate.java:225)
   at com.webobjects.foundation._NSDelegate.perform(_NSDelegate.java:158)
   at com.webobjects.eoaccess.EOModelGroup.defaultGroup(
 EOModelGroup.java:365)
   at your.app.testApplication.test(testApplication.java:118)
  ... skipped 4 stack elements
   at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(
 FrameworkMethod.java:44)
   at org.junit.internal.runners.model.ReflectiveCallable.run(
 ReflectiveCallable.java:15)
   at org.junit.runners.model.FrameworkMethod.invokeExplosively(
 FrameworkMethod.java:41)
   at org.junit.internal.runners.statements.InvokeMethod.evaluate(
 InvokeMethod.java:20)
   at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(
 BlockJUnit4ClassRunner.java:79)
   at org.junit.runners.BlockJUnit4ClassRunner.runChild(
 BlockJUnit4ClassRunner.java:71)
   at org.junit.runners.BlockJUnit4ClassRunner.runChild(
 BlockJUnit4ClassRunner.java:49)
   at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
   at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
   at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
   at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
   at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(
 JUnit4TestReference.java:50)
   at org.eclipse.jdt.internal.junit.runner.TestExecution.run(
 TestExecution.java:38)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(
 RemoteTestRunner.java:467)
   at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(
 RemoteTestRunner.java:683

Test

2012-02-23 Thread ISHIMOTO Ken

Sorry, it is a Test 

Ken

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JUnit Test Initialization

2011-02-01 Thread Joe Kramer

Hi Everyone,

I'm writing my first JUnit test for a WebObjects Application and I've hit a
roadblock.  I need access to some of the data in the database.  When I just
try to run the test I get an error: java.lang.IllegalArgumentException: An
object store for the entity Account could not be found. Verify that the
entity is defined in an EOModel, and that the model is installed properly.
To see what models are loaded, you can try printing the return value of
EOModelGroup.defaultGroup() in your application.

Seems I need to initialize my application, so I tried this advice on the
wiki:
http://wiki.objectstyle.org/confluence/display/WO/Testing-JUnit+and+TestNGto
initialize the app, but then I get a NPE:

java.lang.NullPointerException
at
er.extensions.foundation.ERXConfigurationManager.commandLineArgumentProperties(ERXConfigurationManager.java:170)
at
er.extensions.foundation.ERXConfigurationManager.applyConfiguration(ERXConfigurationManager.java:300)
at
er.extensions.foundation.ERXConfigurationManager.loadConfiguration(ERXConfigurationManager.java:289)
at
er.extensions.ERXExtensions.finishInitialization(ERXExtensions.java:261)
at
er.extensions.ERXFrameworkPrincipal$Observer.willFinishInitialization(ERXFrameworkPrincipal.java:97)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.webobjects.foundation.NSSelector._safeInvokeMethod(NSSelector.java:122)
at
com.webobjects.foundation.NSNotificationCenter$_Entry.invokeMethod(NSNotificationCenter.java:588)
at
com.webobjects.foundation.NSNotificationCenter.postNotification(NSNotificationCenter.java:532)
at
er.extensions.appserver.ERXApplication.init(ERXApplication.java:1035)
at com.example.Application.init(Application.java:21)
at com.example.tests.YourOrdersTest.initWO(YourOrdersTest.java:51)
snip

and the console message: It seems that your application class
com.example.Application did not call
er.extensions.appserver.ERXApplication.main(argv[], applicationClass)
method. Please modify your Application.java as the followings so that
er.extensions.foundation.ERXConfigurationManager can provide its rapid
turnaround feature completely. 

Any help setting up this test would be greatly appreciated.

Thanks,

Joe
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Re: JUnit Test Initialization

2011-02-01 Thread John Huss

There are varying levels of initialization you can perform.  One of the
shorter ones is this:

@BeforeClass

public static void setUpBeforeClass() throws Exception {

ERXExtensions.initEOF(new String[0]);

}


You have to have the working directory set to
${working_dir_loc_WOLips:YOURPROJECT} for this to work.

John

On Tue, Feb 1, 2011 at 3:44 PM, Joe Kramer jkra...@cyberapps.net wrote:

 Hi Everyone,

 I'm writing my first JUnit test for a WebObjects Application and I've hit a
 roadblock.  I need access to some of the data in the database.  When I just
 try to run the test I get an error: java.lang.IllegalArgumentException: An
 object store for the entity Account could not be found. Verify that the
 entity is defined in an EOModel, and that the model is installed properly.
 To see what models are loaded, you can try printing the return value of
 EOModelGroup.defaultGroup() in your application.

 Seems I need to initialize my application, so I tried this advice on the
 wiki:
 http://wiki.objectstyle.org/confluence/display/WO/Testing-JUnit+and+TestNGto 
 initialize the app, but then I get a NPE:

 java.lang.NullPointerException
 at
 er.extensions.foundation.ERXConfigurationManager.commandLineArgumentProperties(ERXConfigurationManager.java:170)
 at
 er.extensions.foundation.ERXConfigurationManager.applyConfiguration(ERXConfigurationManager.java:300)
 at
 er.extensions.foundation.ERXConfigurationManager.loadConfiguration(ERXConfigurationManager.java:289)
 at
 er.extensions.ERXExtensions.finishInitialization(ERXExtensions.java:261)
 at
 er.extensions.ERXFrameworkPrincipal$Observer.willFinishInitialization(ERXFrameworkPrincipal.java:97)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at
 sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at
 com.webobjects.foundation.NSSelector._safeInvokeMethod(NSSelector.java:122)
 at
 com.webobjects.foundation.NSNotificationCenter$_Entry.invokeMethod(NSNotificationCenter.java:588)
 at
 com.webobjects.foundation.NSNotificationCenter.postNotification(NSNotificationCenter.java:532)
 at
 er.extensions.appserver.ERXApplication.init(ERXApplication.java:1035)
 at com.example.Application.init(Application.java:21)
 at com.example.tests.YourOrdersTest.initWO(YourOrdersTest.java:51)
 snip

 and the console message: It seems that your application class
 com.example.Application did not call
 er.extensions.appserver.ERXApplication.main(argv[], applicationClass)
 method. Please modify your Application.java as the followings so that
 er.extensions.foundation.ERXConfigurationManager can provide its rapid
 turnaround feature completely. 

 Any help setting up this test would be greatly appreciated.

 Thanks,

 Joe



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test

2010-09-13 Thread Kieran Kelleher

since my mac.com emails are not going thru it seems.. let's switch to gmail 
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Re: test

2010-09-13 Thread Louis Demers

Hi Kierian,

to further test your new e-mail,  could you tell me if you distributed the long 
response utilities you talked about at WOWODC2010 ? and how to get to it. If so 
is there a place  that uses it that I can peruse ... 8-)


Cheers.



On 2010-09-13, at 13:51 , Kieran Kelleher wrote:

 since my mac.com emails are not going thru it seems.. let's switch to 
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Louis Demers eng.
www.obzerv.com


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Re: test

2010-09-13 Thread Kieran Kelleher

Hi Louis,

Hope you are well.

The reusable long response functionality is not entirely committed to Wonder 
yet (some of the java.util.concurrent utility classes are committed to 
er.extensions.concurrency already) since some refactoring is needed before 
committing it.

Meanwhile you can get the beta versions of the GenericAjaxLongResponsePage 
and some related controller classes  in the repository that was used for the 
WOWODC example jasper reports app. The details are in the jasper reports 
presentation slides, which are available in the WOWODC 2010 podcast feed  
already.

Meanwhile the class names and API of what gets committed to Wonder will likely 
be much different to the beta/demo projects in that WOWODC2010 repository.

ERJasperReports is committed to Wonder, albeit with classes/API changes since 
WOWODC, and the ERJasperReportsExample will be committed once I get the 
reusable long response stuff that it depends on fully committed to generic 
Wonder first. Hopefully all will be committed and documented before end of this 
month. The delay is due to the fact that I have an unusually heavy workload 
right now. :-)

If you don't have the jasper reports presentation slides or have not succeeded 
in connecting to the WOWODC 2010 podcast feed, let me know and I can email the 
repository details to you.

Regards, Kieran


On Sep 13, 2010, at 9:12 PM, Louis Demers wrote:

 Hi Kierian,
 
 to further test your new e-mail,  could you tell me if you distributed the 
 long response utilities you talked about at WOWODC2010 ? and how to get to 
 it. If so is there a place  that uses it that I can peruse ... 8-)
 
 
 Cheers.
 
 
 
 On 2010-09-13, at 13:51 , Kieran Kelleher wrote:
 
 since my mac.com emails are not going thru it seems.. let's switch to 
 gmail address... ___
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 Louis Demers eng.
 www.obzerv.com
 
 

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Re: test

2010-09-13 Thread Louis Demers

Hi Kieran

On 2010-09-13, at 23:26 , Kieran Kelleher wrote:

 Hi Louis,
 
 Hope you are well.

pump up and excited since meeting you all at WOWODC...  8-)

 ... interesting and useful info deleted...
 
 Hopefully all will be committed and documented before end of this month. The 
 delay is due to the fact that I have an unusually heavy workload right now. 
 :-)

I understand. If  you don't mind, a small e-mail to announce its availability 
would be greatly appreciated.

 
 If you don't have the jasper reports presentation slides or have not 
 succeeded in connecting to the WOWODC 2010 podcast feed, let me know and I 
 can email the repository details to you.

I have the slides and i'm downloading the presentation video as I write this.

Thank you very Much.

Louis


PS: your gmail is coming through loud and clear ;-)

 
 Regards, Kieran
 
 
 On Sep 13, 2010, at 9:12 PM, Louis Demers wrote:
 
 Hi Kierian,
 
 to further test your new e-mail,  could you tell me if you distributed the 
 long response utilities you talked about at WOWODC2010 ? and how to get to 
 it. If so is there a place  that uses it that I can peruse ... 8-)
 
 
 Cheers.
 
 
 

Louis Demers eng.
www.obzerv.com


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This is a test.....

2010-08-20 Thread Kieran Kelleher


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test

2009-12-20 Thread Ren, Kevin


Tried send topic twice, but no appeared there

Sorry about this,

Kevin


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Re: JUnit test method generation

2009-12-13 Thread Ramsey Lee Gurley

Thank you for pointing that one out Katya.  I did not know about it.  It looks 
really helpful for cases where I would want to include my tests in the same 
project.  It doesn't look like it will handle something like ERXTest very well 
though, since all the tests are in a separate project.  I've just installed it, 
so I will see if perhaps I'm wrong about that though.

Thanks again for the tip!

Ramsey

On Dec 13, 2009, at 2:45 AM, Katya Yurukova wrote:

 Hi Ramsey,
 
 You should try the moreUnit plug-in for Eclipse. It is capable of adding 
 single method stubs for already existing test classes. It needs a bit of 
 adjustment so it can find your test classes, but if you have some naming 
 convention for your test classes you should be OK. Here's the link:
 
 http://moreunit.sourceforge.net/index.html
 
 Cheers,
 Katya
 
 
 On Dec 13, 2009, at 2:30 AM, Ramsey Lee Gurley wrote:
 
 
 On Dec 12, 2009, at 7:02 PM, Ray Kiddy wrote:
 
 
 On Dec 12, 2009, at 8:14 AM, Ramsey Lee Gurley wrote:
 
 Hi all,
 
 I'm wondering if there is an easier way to generate a JUnit test method 
 stub for a test class that already exists.  Let's say I have a class Foo 
 with method bar().  When I generate the JUnit test FooTest in eclipse, I 
 can select the methods and generate the source stub for testBar() and all 
 the other methods on the class.  Now if I add the method baz(), is there 
 an easy way to generate the stub for that test method, or do I have to key 
 them in manually ever after?  Is there some way to link the two classes so 
 that Eclipse automatically generates the test methods as new methods are 
 added to the class?
 
 Ramsey
 
 ___
 
 You are asking for a sort of eogeneration for junit tests. (In other 
 words, the EOGenerate keeps a model and the java file synchronized and an 
 analogous thing would be useful for junit tests.) This is not a bad idea. 
 It does seem like a good idea. But, looking at what eclipse provides now, 
 it seems clear that this is not available now.
 
 - ray
 
 
 It doesn't even have to go that far, really.  I'm just hoping for something 
 like 'generate getters/setters' where it gives you a list of checkboxes and 
 greys out the ones you already have.  But it doesn't appear that there's any 
 way to choose an existing test class and insert new tests into it.  It 
 always generates a new one.  Which means I have to generate a temporary one 
 with all the methods, copy the body, paste it into the old class, then go 
 though the thing deleting the dupes. Yuck :-/
 
 Ramsey
 
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JUnit test method generation

2009-12-12 Thread Ramsey Lee Gurley

Hi all,

I'm wondering if there is an easier way to generate a JUnit test method stub 
for a test class that already exists.  Let's say I have a class Foo with method 
bar().  When I generate the JUnit test FooTest in eclipse, I can select the 
methods and generate the source stub for testBar() and all the other methods on 
the class.  Now if I add the method baz(), is there an easy way to generate the 
stub for that test method, or do I have to key them in manually ever after?  Is 
there some way to link the two classes so that Eclipse automatically generates 
the test methods as new methods are added to the class?

Ramsey



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Re: JUnit test method generation

2009-12-12 Thread Ray Kiddy



On Dec 12, 2009, at 8:14 AM, Ramsey Lee Gurley wrote:


Hi all,

I'm wondering if there is an easier way to generate a JUnit test  
method stub for a test class that already exists.  Let's say I have  
a class Foo with method bar().  When I generate the JUnit test  
FooTest in eclipse, I can select the methods and generate the source  
stub for testBar() and all the other methods on the class.  Now if I  
add the method baz(), is there an easy way to generate the stub for  
that test method, or do I have to key them in manually ever after?   
Is there some way to link the two classes so that Eclipse  
automatically generates the test methods as new methods are added to  
the class?


Ramsey

___


You are asking for a sort of eogeneration for junit tests. (In other  
words, the EOGenerate keeps a model and the java file synchronized  
and an analogous thing would be useful for junit tests.) This is not a  
bad idea. It does seem like a good idea. But, looking at what eclipse  
provides now, it seems clear that this is not available now.


- ray

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Re: JUnit test method generation

2009-12-12 Thread Ramsey Lee Gurley


On Dec 12, 2009, at 7:02 PM, Ray Kiddy wrote:

 
 On Dec 12, 2009, at 8:14 AM, Ramsey Lee Gurley wrote:
 
 Hi all,
 
 I'm wondering if there is an easier way to generate a JUnit test method stub 
 for a test class that already exists.  Let's say I have a class Foo with 
 method bar().  When I generate the JUnit test FooTest in eclipse, I can 
 select the methods and generate the source stub for testBar() and all the 
 other methods on the class.  Now if I add the method baz(), is there an easy 
 way to generate the stub for that test method, or do I have to key them in 
 manually ever after?  Is there some way to link the two classes so that 
 Eclipse automatically generates the test methods as new methods are added to 
 the class?
 
 Ramsey
 
 ___
 
 You are asking for a sort of eogeneration for junit tests. (In other words, 
 the EOGenerate keeps a model and the java file synchronized and an 
 analogous thing would be useful for junit tests.) This is not a bad idea. It 
 does seem like a good idea. But, looking at what eclipse provides now, it 
 seems clear that this is not available now.
 
 - ray
 

It doesn't even have to go that far, really.  I'm just hoping for something 
like 'generate getters/setters' where it gives you a list of checkboxes and 
greys out the ones you already have.  But it doesn't appear that there's any 
way to choose an existing test class and insert new tests into it.  It always 
generates a new one.  Which means I have to generate a temporary one with all 
the methods, copy the body, paste it into the old class, then go though the 
thing deleting the dupes. Yuck :-/

Ramsey



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Re: JUnit test method generation

2009-12-12 Thread Katya Yurukova


Hi Ramsey,

You should try the moreUnit plug-in for Eclipse. It is capable of  
adding single method stubs for already existing test classes. It needs  
a bit of adjustment so it can find your test classes, but if you have  
some naming convention for your test classes you should be OK. Here's  
the link:


http://moreunit.sourceforge.net/index.html

Cheers,
Katya


On Dec 13, 2009, at 2:30 AM, Ramsey Lee Gurley wrote:



On Dec 12, 2009, at 7:02 PM, Ray Kiddy wrote:



On Dec 12, 2009, at 8:14 AM, Ramsey Lee Gurley wrote:


Hi all,

I'm wondering if there is an easier way to generate a JUnit test  
method stub for a test class that already exists.  Let's say I  
have a class Foo with method bar().  When I generate the JUnit  
test FooTest in eclipse, I can select the methods and generate the  
source stub for testBar() and all the other methods on the class.   
Now if I add the method baz(), is there an easy way to generate  
the stub for that test method, or do I have to key them in  
manually ever after?  Is there some way to link the two classes so  
that Eclipse automatically generates the test methods as new  
methods are added to the class?


Ramsey

___


You are asking for a sort of eogeneration for junit tests. (In  
other words, the EOGenerate keeps a model and the java file  
synchronized and an analogous thing would be useful for junit  
tests.) This is not a bad idea. It does seem like a good idea. But,  
looking at what eclipse provides now, it seems clear that this is  
not available now.


- ray



It doesn't even have to go that far, really.  I'm just hoping for  
something like 'generate getters/setters' where it gives you a list  
of checkboxes and greys out the ones you already have.  But it  
doesn't appear that there's any way to choose an existing test class  
and insert new tests into it.  It always generates a new one.  Which  
means I have to generate a temporary one with all the methods, copy  
the body, paste it into the old class, then go though the thing  
deleting the dupes. Yuck :-/


Ramsey

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Re: Using Jmeter to test WO

2009-05-21 Thread Amiel Montecillo

I am running to some annoying stuff using JMeter to test my wo app.

I used the HTTP Proxy Server to layout the samplers. Then had the Regular
expression extractor to handle the session_id. But when I run the JMeter
script. I often get a You backtracked too far error. On some of the
sample.

I think this is caused by the url segment after the session id (whos name
escapes me as of this moment) e.g. .../App.woa/sessionid/*50.0.0.0.2* -
not in sync with the process.

Can anyone tell me how I can solve this?

Thanks,
Amiel

On Mon, May 18, 2009 at 9:08 PM, Antoine LAGIER alag...@algodata.fr wrote:

You can use-it, it works very well.

Le 18 mai 09 à 08:41, Amiel Montecillo a écrit :

I am trying out JMeter for the first time. It seems straightforward and
powerful. May I ask what's the best way to determine that a particular
request operation succeeded? Is it through the use of Response Assertions
checking for some desired text to be returned?

Amiel

On Mon, May 11, 2009 at 3:53 PM, Antoine LAGIER alag...@algodata.frwrote:

Thank you John,

Re: Using Jmeter to test WO

2009-05-18 Thread Amiel Montecillo

I am trying out JMeter for the first time. It seems straightforward and
powerful. May I ask what's the best way to determine that a particular
request operation succeeded? Is it through the use of Response Assertions
checking for some desired text to be returned?

Amiel

On Mon, May 11, 2009 at 3:53 PM, Antoine LAGIER alag...@algodata.fr wrote:

 Thank you John,

 Other useful link


 http://wiki.objectstyle.org/confluence/display/WO/Testing-Load+Testing+WO+Apps+with+JMeter


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Re: Using Jmeter to test WO

2009-05-18 Thread Antoine LAGIER



You can use-it, it works very well.



Le 18 mai 09 à 08:41, Amiel Montecillo a écrit :

I am trying out JMeter for the first time. It seems straightforward  
and powerful. May I ask what's the best way to determine that a  
particular request operation succeeded? Is it through the use of  
Response Assertions checking for some desired text to be returned?


Amiel

On Mon, May 11, 2009 at 3:53 PM, Antoine LAGIER  
alag...@algodata.fr wrote:

Thank you John,

Other useful link

http://wiki.objectstyle.org/confluence/display/WO/Testing-Load+Testing+WO+Apps+with+JMeter


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Re: Using Jmeter to test WO

2009-05-11 Thread Antoine LAGIER


Thank you John,

Other useful link

http://wiki.objectstyle.org/confluence/display/WO/Testing-Load+Testing+WO+Apps+with+JMeter

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Re: Using Jmeter to test WO

2009-05-09 Thread Dov Rosenberg

We use Jmeter all the time to test our WO apps. The trick is to use the
Regular Expression Extractor component (located under Post Processors). Add
this component after the first WO page that creates the session id. Set the
following fields:

Reference Name: wovars
Regular Expression: /MyApp/WebObjects/MyApp.woa/wo/([^/]+)/
Template: $1$
Match No: 1
Default Value: 

On your jmeter scripts replace the session id with this

path: /MyApp/WebObjects/MyApp/woa/wo/${wovars_g1}/1.1.x.x.x

Make sure your thread group is set to start a new session for each
iteration.

HTH

Dov Rosenberg


On 5/8/09 6:05 PM, Antoine LAGIER alag...@algodata.fr wrote:

 We try to use a simple test with Jmeter to test a WO dev.
 
 - In this script we try to connect to the site
 
 /cgi-bin/WebObjects/myapp.woa/
 
 - Login with a account :
 
 /cgi-bin/WebObjects/myapp.woa/2/wa/LoginAction/doLogin
 
 so we need to get and set the wosid (wosid =
 3V8YgnSQikFjJleLOXbGzw )   and to get and set  the number of the
 instance (/2  ) in the Jmeter process
 
 We are looking for any help, any example script to do this test
 
 Regards,
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Using Jmeter to test WO

2009-05-08 Thread Antoine LAGIER


We try to use a simple test with Jmeter to test a WO dev.

- In this script we try to connect to the site

/cgi-bin/WebObjects/myapp.woa/

- Login with a account :

/cgi-bin/WebObjects/myapp.woa/2/wa/LoginAction/doLogin

so we need to get and set the wosid (wosid =  
3V8YgnSQikFjJleLOXbGzw )   and to get and set  the number of the  
instance (/2  ) in the Jmeter process


We are looking for any help, any example script to do this test

Regards,
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Re: Using Jmeter to test WO

2009-05-08 Thread John Ours



On May 8, 2009, at 6:05 PM, Antoine LAGIER wrote:


We try to use a simple test with Jmeter to test a WO dev.

so we need to get and set the wosid (wosid =  
3V8YgnSQikFjJleLOXbGzw )   and to get and set  the number of the  
instance (/2  ) in the Jmeter process



You don't actually need to get or set it, just tell jMeter that it's a  
session id and it will handle it properly from request to request  
(using the one that's returned rather than the one that was recorded).


Example here:
http://jakarta.apache.org/jmeter/usermanual/build-adv-web-test-plan.html#session_url_rewriting

Reference here:
http://jakarta.apache.org/jmeter/usermanual/component_reference.html#HTTP_URL_Re-writing_Modifier


John

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Re: Problem loading EOModel in a unit test on Windows

2009-04-30 Thread Cheong Hee (Gmail-P)


Hi Jake

Actually...the first thing when we learned WO on Windows is don't use white 
spaces in the project path. :)   So the spaces in all project paths e.g. 
C:\Document and Settings is avoided.  I have just updated wiki to include 
this overlook unwritten tip.


http://wiki.objectstyle.org/confluence/display/WO/Web+Applications-Development-Development+on+Windows

Cheers

Cheong Hee



Message: 9
Date: Wed, 29 Apr 2009 10:09:12 -0300
From: Henrique Prange hpra...@gmail.com
Subject: Re: Problem loading EOModel in a unit test on Windows
(NSBundle fails to load .jar bundles)
To: WebObjects-Dev Mailing List List webobjects-dev@lists.apple.com
Message-ID: 49f85178.1010...@gmail.com
Content-Type: text/plain; charset=iso-8859-1

Hi Jake,

The problem is caused by white spaces in the path. Do not put WO
libraries/projects on C:\Documents and Settings.

I've reported the bug 5941664 on 16-May-2008 with a simple suggestion
about how to solve the problem. The issue is still open as you can see
in the attached screenshot.

Cheers,

Henrique

PS.: WO applications deployed as WAR on Windows only work if the servlet
container is installed in a path WITHOUT white spaces. Otherwise, you'll
have a similar exception while starting the container.




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Re: Problem loading EOModel in a unit test on Windows (NSBundle fails to load .jar bundles)

2009-04-30 Thread Henrique Prange


Hi Mike,

Copied from bug 5941664:

This problem occurs because of a conversion from URL to String in the 
NSBundle class. The Java URLDecoder class could be used to solve this 
problem. Below is a possible fix that could be done on 
__exctractStringFromURL private method of NSBundle:


String urlPath = URLDecoder.decode( anURL.getPath(), UTF-8 );

It is not a patch, but isn't it clear? :)

Cheers,

Henrique

Mike Schrag wrote:
(as an aside - wouldn't it be nice if this were an open source project 
and we could see each other's bug reports and submit patches? - one 
can only dream)
dream away, dreamer ... jad works great, though.  always submit a patch 
if you have one :)


ms



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Problem loading EOModel in a unit test on Windows (NSBundle fails to load .jar bundles)

2009-04-29 Thread Jake MacMullin

Today I finally decided to see if I could find out why our suite of EO unit
tests kept failing on Windows while passing on Mac OS X and Linux (don't ask
me why I'm using Windows).
All our EO unit tests have a common parent class that has a @BeforeClass
method that makes sure the EOModel has been loaded (because in some
circumstances - such as when being run as part of a build, the model wasn't
loaded when our unit tests needed it). This method attempts to load the
model if it hasn't been loaded by first calling:

EOModelGroup.defaultGroup().modelNamed(BLAH);

to see if it has been loaded and then manually loads the group if it isn't
there. The problem was that on Windows EOModelGroup.defaultGroup() was
throwing an exception:

java.lang.IllegalArgumentException: Attempt to insert null into an
com.webobjects.foundation.NSMutableArray.
at
com.webobjects.foundation.NSMutableArray.addObject(NSMutableArray.java:239)
at
com.webobjects.eoaccess.EOModelGroup.modelGroupForLoadedBundles(EOModelGroup.java:700)
at
com.webobjects.eoaccess.EOModelGroup.globalModelGroup(EOModelGroup.java:306)
at com.webobjects.eoaccess.EOModelGroup.defaultGroup(EOModelGroup.java:333)
at
com.bbc.fmtj.cps.enterprise.eo.CPSEnterpriseTestCase.loadModel(CPSEnterpriseTestCase.java:283)

The 'attempt to insert null' was happening because the
'modelGroupForLoadedBundles()' method tries to make a list of all the loaded
bundles by first adding the 'NSBundle.mainBundle()' to a list and then
adding all of the 'NSBundle.frameworkBundles()'. The problem is that when
running a unit test on Windows NSBundle.mainBundle() returns null and
'modelGroupForLoadedBundles()' doesn't bother to check for null before
adding the 'main bundle' to the list of 'loaded bundles'.

So - why does NSBundle.mainBundle() return null on Windows but not on OS X?
- Good question! I don't pretend to understand the mystery that is NSBundle,
but here's what I think is happening.

NSBundle has a bunch of static initialisation code that runs when the
NSBundle class is loaded. This initialisation code first tries to load
(old-style .framework I assume) 'bundles' from a directory specified by the
'webobjects.user.dir' property. If this property has not been set, it then
looks in the current application's directory. If it is unable to load any
'bundles' from these locations it then asks the Java ClassLoader for a list
of URLs to all the Info.plist files found inside of any .jars that are on
the classpath.

Now I haven't 'installed' WebObjects on my Windows box (this seems like an
out-dated concept to me - I should just be able to reference the .jars) so
it is this final method of 'bundle loading' that I'm relying on. The problem
is - it is broken on non-unix platforms.

Once NSBundle has got a list of URLs to all the Info.plist files it tries to
turn this in to a list of paths to the .jar files containing the Info.plist
files.

For example, it wants to turn this:
jar:file:/C:/Documents%20and%20Settings/.../JavaEOAccess-5.4.2.jar!/Resources/Info.plist

in to this:
C:\Documents%20and%20Settings\...\JavaEOAccess-5.4.2.jar

The problem is that the method that tries to do this
(__exctractStringFromURL) isn't quite right. The
current implementation returns a String like this:
/C:/Documents%20and%20Settings/.../JavaEOAccess-5.4.2.jar
(note the leading slash and that the slashes are the wrong kind)

Later on in the initialisation, NSBundle tries to 'normalise' this path
before attempting to load the bundle from the path. When the
'NormalizeExistingBundlePath()' method is passed the malformed file path, it
attempts to create a new File object - using the malformed file path and as
a result the 'normalised' path is null.

Finally, NSBundle tries to load the actual bundle from the given path and
obviously fails to load anything from a null path. Hence no 'bundles' are
loaded at all - which begs the question - how does WebObjects even work on
Windows at all if NSBundle isn't working? (and I don't know the answer to
that question).

Fixing this should be simple. __exctractStringFromURL() needs to be
re-written to return a proper (platform appropriate) file path (perhaps by
creating a URI using the trimmed path component of the original jar: URL and
then creating a File using this URI and asking it for its getPath()).

In the meantime, I think I can work around this problem in my code by
calling NSBundle._bundleWithPathShouldCreateIsJar() myself to load all of
the bundles that NSBundle's initialisation code should've loaded anyway -
and then manually set the 'main bundle' by calling
NSBundle._setMainBundle().

So, now I've gotten to the bottom of this - I have two questions:

1. Can anyone explain why WebObjects works on Windows when I deploy a .WAR
containing all the libraries as .jars given that NSBundle seems broken on
Windows?

2. Shall I bother submitting a bug report via Radar (given that Mike fixed
the last bug I found before I'd managed to finish writing the bug report)?

Thanks,

Jake

Re: Problem loading EOModel in a unit test on Windows (NSBundle fails to load .jar bundles)

2009-04-29 Thread Mike Schrag

2. Shall I bother submitting a bug report via Radar (given that Mike  
fixed the last bug I found before I'd managed to finish writing the  
bug report)?

yeah .. because this one is annoying :)

ms

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Re: Problem loading EOModel in a unit test on Windows (NSBundle fails to load .jar bundles)

2009-04-29 Thread Henrique Prange


Hi Jake,

The problem is caused by white spaces in the path. Do not put WO 
libraries/projects on C:\Documents and Settings.


I've reported the bug 5941664 on 16-May-2008 with a simple suggestion 
about how to solve the problem. The issue is still open as you can see 
in the attached screenshot.


Cheers,

Henrique

PS.: WO applications deployed as WAR on Windows only work if the servlet 
container is installed in a path WITHOUT white spaces. Otherwise, you'll 
have a similar exception while starting the container.


Jake MacMullin wrote:
Today I finally decided to see if I could find out why our suite of EO 
unit tests kept failing on Windows while passing on Mac OS X and Linux 
(don't ask me why I'm using Windows).


All our EO unit tests have a common parent class that has a @BeforeClass 
method that makes sure the EOModel has been loaded (because in some 
circumstances - such as when being run as part of a build, the model 
wasn't loaded when our unit tests needed it). This method attempts to 
load the model if it hasn't been loaded by first calling:


EOModelGroup.defaultGroup().modelNamed(BLAH);

to see if it has been loaded and then manually loads the group if it 
isn't there. The problem was that on Windows EOModelGroup.defaultGroup() 
was throwing an exception:


java.lang.IllegalArgumentException: Attempt to insert null into an 
com.webobjects.foundation.NSMutableArray.
at 
com.webobjects.foundation.NSMutableArray.addObject(NSMutableArray.java:239)
at 
com.webobjects.eoaccess.EOModelGroup.modelGroupForLoadedBundles(EOModelGroup.java:700)
at 
com.webobjects.eoaccess.EOModelGroup.globalModelGroup(EOModelGroup.java:306)

at com.webobjects.eoaccess.EOModelGroup.defaultGroup(EOModelGroup.java:333)
at 
com.bbc.fmtj.cps.enterprise.eo.CPSEnterpriseTestCase.loadModel(CPSEnterpriseTestCase.java:283)


The 'attempt to insert null' was happening because the 
'modelGroupForLoadedBundles()' method tries to make a list of all the 
loaded bundles by first adding the 'NSBundle.mainBundle()' to a list and 
then adding all of the 'NSBundle.frameworkBundles()'. The problem is 
that when running a unit test on Windows NSBundle.mainBundle() returns 
null and 'modelGroupForLoadedBundles()' doesn't bother to check for null 
before adding the 'main bundle' to the list of 'loaded bundles'.


So - why does NSBundle.mainBundle() return null on Windows but not on OS 
X? - Good question! I don't pretend to understand the mystery that is 
NSBundle, but here's what I think is happening.


NSBundle has a bunch of static initialisation code that runs when the 
NSBundle class is loaded. This initialisation code first tries to load 
(old-style .framework I assume) 'bundles' from a directory specified by 
the 'webobjects.user.dir' property. If this property has not been set, 
it then looks in the current application's directory. If it is unable to 
load any 'bundles' from these locations it then asks the Java 
ClassLoader for a list of URLs to all the Info.plist files found inside 
of any .jars that are on the classpath.


Now I haven't 'installed' WebObjects on my Windows box (this seems like 
an out-dated concept to me - I should just be able to reference the 
.jars) so it is this final method of 'bundle loading' that I'm relying 
on. The problem is - it is broken on non-unix platforms.


Once NSBundle has got a list of URLs to all the Info.plist files it 
tries to turn this in to a list of paths to the .jar files containing 
the Info.plist files.


For example, it wants to turn this:
jar:file:/C:/Documents%20and%20Settings/.../JavaEOAccess-5.4.2.jar!/Resources/Info.plist

in to this:
C:\Documents%20and%20Settings\...\JavaEOAccess-5.4.2.jar

The problem is that the method that tries to do this 
(__exctractStringFromURL) isn't quite right. The 
current implementation returns a String like this:
/C:/Documents%20and%20Settings/.../JavaEOAccess-5.4.2.jar 
(note the leading slash and that the slashes are the wrong kind)


Later on in the initialisation, NSBundle tries to 'normalise' this path 
before attempting to load the bundle from the path. When the 
'NormalizeExistingBundlePath()' method is passed the malformed file 
path, it attempts to create a new File object - using the malformed file 
path and as a result the 'normalised' path is null.


Finally, NSBundle tries to load the actual bundle from the given path 
and obviously fails to load anything from a null path. Hence no 
'bundles' are loaded at all - which begs the question - how does 
WebObjects even work on Windows at all if NSBundle isn't working? (and I 
don't know the answer to that question).


Fixing this should be simple. __exctractStringFromURL() needs to be 
re-written to return a proper (platform appropriate) file path (perhaps 
by creating a URI using the trimmed path component of the original jar: 
URL and then creating a File using this URI and asking it for its 
getPath()).


In the meantime, I think I can work around this problem in my code by 
calling

Re: Problem loading EOModel in a unit test on Windows (NSBundle fails to load .jar bundles)

2009-04-29 Thread Jake MacMullin

Well, you're right - is it due to spaces in the path... but I still think
the problem is in __exctractStringFromURL(). The problem is this method
trims the 'path' component of a URL and later it is treated as if it were a
file path. One of the main differences between a URL's 'path' component and
a 'file path' is that URLs escape spaces as %20, while 'file paths' leave
them as spaces.
I've attached a unit test demonstrating the problem (and a potential
solution) and I've reported the bug to Apple (6841776).
Out of interest Henrique - was this the cause of the problem with spaces
that you identified? What was your proposed solution?

(as an aside - wouldn't it be nice if this were an open source project and
we could see each other's bug reports and submit patches? - one can only
dream)

Cheers,

Jake

On Thu, Apr 30, 2009 at 9:54 AM, Jake MacMullin jmacmul...@gmail.comwrote:

Henrique,
Of course - I remember encountering this before. I wonder if it is the root
cause of the problem I was encountering (or if the error I think I found in
__exctractStringFromURL()
is the reason spaces cause problems).

Interestingly, I can get my unit tests to work on Windows by manually
calling the code that is meant to be called in NSBundle's initialisation.
For example, the following works:

NSBundle._bundleWithPathShouldCreateIsJar(C:\\Documents and
Settings\\username\\.m2\\repository\\com\\webobjects\\JavaEOAccess\\5.4.2\\JavaEOAccess-5.4.2.jar,
true, true);

That is, after I've done this with all the .jars I need,
EOModelGroup.defaultGroup() no longer throws an exception.

Out of interest, I'm going to move my .jars so there are no spaces in the
path and see if this also solves the problem.

Thanks,

Jake

On Wed, Apr 29, 2009 at 11:09 PM, Henrique Prange hpra...@gmail.comwrote:

Hi Jake,

The problem is caused by white spaces in the path. Do not put WO
libraries/projects on C:\Documents and Settings.

I've reported the bug 5941664 on 16-May-2008 with a simple suggestion
about how to solve the problem. The issue is still open as you can see in
the attached screenshot.

Cheers,

Henrique

PS.: WO applications deployed as WAR on Windows only work if the servlet
container is installed in a path WITHOUT white spaces. Otherwise, you'll
have a similar exception while starting the container.

Jake MacMullin wrote:

Today I finally decided to see if I could find out why our suite of EO
unit tests kept failing on Windows while passing on Mac OS X and Linux
(don't ask me why I'm using Windows).

All our EO unit tests have a common parent class that has a @BeforeClass
method that makes sure the EOModel has been loaded (because in some
circumstances - such as when being run as part of a build, the model wasn't
loaded when our unit tests needed it). This method attempts to load the
model if it hasn't been loaded by first calling:

EOModelGroup.defaultGroup().modelNamed(BLAH);

to see if it has been loaded and then manually loads the group if it
isn't there. The problem was that on Windows EOModelGroup.defaultGroup() was
throwing an exception:

java.lang.IllegalArgumentException: Attempt to insert null into an
com.webobjects.foundation.NSMutableArray.
at
com.webobjects.foundation.NSMutableArray.addObject(NSMutableArray.java:239)
at
com.webobjects.eoaccess.EOModelGroup.modelGroupForLoadedBundles(EOModelGroup.java:700)
at
com.webobjects.eoaccess.EOModelGroup.globalModelGroup(EOModelGroup.java:306)
at
com.webobjects.eoaccess.EOModelGroup.defaultGroup(EOModelGroup.java:333)
at
com.bbc.fmtj.cps.enterprise.eo.CPSEnterpriseTestCase.loadModel(CPSEnterpriseTestCase.java:283)

The 'attempt to insert null' was happening because the
'modelGroupForLoadedBundles()' method tries to make a list of all the loaded
bundles by first adding the 'NSBundle.mainBundle()' to a list and then
adding all of the 'NSBundle.frameworkBundles()'. The problem is that when
running a unit test on Windows NSBundle.mainBundle() returns null and
'modelGroupForLoadedBundles()' doesn't bother to check for null before
adding the 'main bundle' to the list of 'loaded bundles'.

So - why does NSBundle.mainBundle() return null on Windows but not on OS
X? - Good question! I don't pretend to understand the mystery that is
NSBundle, but here's what I think is happening.

NSBundle has a bunch of static initialisation code that runs when the
NSBundle class is loaded. This initialisation code first tries to load
(old-style .framework I assume) 'bundles' from a directory specified by the
'webobjects.user.dir' property. If this property has not been set, it then
looks in the current application's directory. If it is unable to load any
'bundles' from these locations it then asks the Java ClassLoader for a list
of URLs to all the Info.plist files found inside of any .jars that are on
the classpath.

Now I haven't 'installed' WebObjects on my Windows box (this seems like
an out-dated concept to me - I should just

Re: Problem loading EOModel in a unit test on Windows (NSBundle fails to load .jar bundles)

2009-04-29 Thread Mike Schrag

(as an aside - wouldn't it be nice if this were an open source  
project and we could see each other's bug reports and submit  
patches? - one can only dream)
dream away, dreamer ... jad works great, though.  always submit a  
patch if you have one :)


ms

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Test, ignore

2009-01-06 Thread Kevin Windham


Testing
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test

2009-01-06 Thread Kieran Kelleher


test, sorry for any inconvenience
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Test, please ignore

2009-01-06 Thread Cheong Hee (Datasonic)

I have not received any emails for since 1/1/2009.  This is just a test to 
see if the message does arrive at the list.


Cheers

Cheong Hee 



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WO 5.4.2 Test Deploy on Tiger

2008-07-09 Thread Andrew Lindesay


Hello;

I keep getting this NSLog line...


Instance Request: Error parsing: instanceRequest type=NSDictionary
queryInstance type=NSStringSTATISTICS/queryInstance
/instanceRequest



Has anybody else had this --- does this mean that I need to update the  
apache adaptor?


cheers.

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Re: Best Way(R) to test for existence of a relationship

2008-04-08 Thread Michael Bushkov

Just my 2 cents to the discussion )
If we consider the object model to be correct then the task of
traversing the array with 2 types of objects seems to be ideal for the
Visitor pattern. Am I missing something?

On 4/8/08, David Avendasora [EMAIL PROTECTED] wrote:
 Unfortunately, no. There's _lots_ of differences. There are a number of
 attributes that they share, but they each have completely different business
 logic for deriving those values, and they each have attributes that are
 unique to themselves that would make no sense to have on the other.

  As uncommon as it is to actually need inheritance in the Model, the amount
 of work I would have to do to not use it would far exceed the amount of work
 I have to do to use it.

  Believe me, I'm not using it just because it is a cool OO concept. Not that
 I don't do that in other places in my app - just not here. :-)

  Dave


  On Apr 7, 2008, at 3:18 PM, Alexander Spohr wrote:


  What are the other differences between RawMaterial and ManufacturedPart?
  Wouldn't it be enough to just flag the RawMaterial ones as such and just
 have one class for both?
 
 atze
 
 
  Am 07.04.2008 um 18:02 schrieb David Avendasora:
 
   You know, I was hoping to avoid the whole question if the domain was
 actually well-modeled or not, but with such dispersions cast on my flawless
 modeling skills, I must respond! :-P
  
   I have 2 types of Parts. One purchased from an outside vendor
 (RawMaterial), and ones that are manufactured (ManufacturedPart).  A
 ManufacturedPart is made up of any number of component Parts. These
 component Parts can be _either_  a RawMaterial or another ManufacturedPart.
  
   So I have modeled it like this:
  
   ManufacturedPart - BillOfMaterial - BOMComponent - Part
  
   To make things more complicated each given Manufactured Part can have
 one or more ways of making it and therefor have multiple BillsOfMaterial.
  
   Hence, I have a branching, recursive relationship tree that can be any
 number of levels deep:
  
   ManufacturedPart - BillOfMaterial - BOMComponent - ManufacturedPart
 - BillOfMaterial - BOMComponent - ManufacturedPart - Rinse, lather,
 repeat.
  
   Or it can be very simple
  
   ManufacturedPart - BillOfMaterial - BOMComponent - RawMaterial
  
   What all this comes down to is that billsOfMaterial() does _not_ belong
 on Part as it does not belong on RawMaterial because a RawMaterial is NOT
 manufactured by us so it will never have a BillOfMaterial.
  
   But there are several places in my code that I want to recursively
 navigate this tree and I just don't see a right way to do that without
 some variation of instanceOf (in code or in a fetch), a case statement or
 adding the method to Part.
  
   The simplicity of one simple method returning NSArray.emptyArray wins.
 Even though it sullies my object graph, it does so in a much less
 complicated, fragile way.
  
   Dave
  
  
   On Apr 7, 2008, at 11:26 AM, Chuck Hill wrote:
  
  
The real question is whether it makes sense in the domain for a Part
 to have a bill of materials.  The default implementation could be
   
public NSArray billOfMaterials() { return this; }
   
With complex parts overriding it as appropriate.  It could just be
 that the model / design is incomplete and leading David into doing Bad
 Things in code.
   
Otherwise, (a) the model is just wrong, or (b) David's processing is
 just wrong.
   
   
  
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  ---
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  Freeport  Soliversum
 
  Fax: +49 40 303 757 99
  Web: http://www.freeport.de/
  Box:
 http://dropbox.letsfile.com/02145299-4347-4671-aab9-1d3004eac51d
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With best regards,
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Re: Best Way® to test for existence of a re lationship

2008-04-08 Thread Kieran Kelleher

An alternative way to handle this is to use the Strategy design  
pattern and just have one Entity ... Part.


You would then create a PartBehaviour interface that encapsulates all  
the things that vary among the various parts. It would give you great  
flexibility to easily (easier than adding/maintaining another entity  
to the eomodel inheritance hierarchy IMHO) add other kinds of parts  
too such as SubassemblyPart, FinishedPart, ConsumablePart, etc.


A few years ago I had an inheritance hierarchy that was getting  
painful (No Fun) to maintain as the system evolved and new  
requirements had to be implemented . I collapsed the inheritance  
hierarchy into one Entity and implemented the Strategy design pattern  
and this has served me very well (even Fun to add features).


Switching from an inheritance hierarchy to Strategy design pattern is  
very easy if you are already using Single table inheritance in  
fact IIRC, there is no database schema changes required at all.



The downside is that *every* Part has *all* attributes ... however  
the approriate answer is returned when a Part is sent a message   
so if asked for an attribute that does not make sense for it to have,  
then it would return null or an empty array in the case of a to-many.


The advantage of Strategy design pattern is that each entity can have  
any subset of the total attributes, even overlapping subsets without a  
thought or a care as to inheritance layers and overriding logic of  
subclasses.


Of course Stratagy d.p. is not a panacea . sometimes it just works  
better where inheritance design is becoming No Fun to deal with, which  
often happens down the road as requirements change/evolve :-)


However, if you are under pressure to Just Fix It right now, then  
Chuck's solution might be easiest and quickest. If you find the  
inheritance archtecture of Parts is hurting your ability to easily add  
Real World business logic, then check out the Strategy design pattern  
(Head First patterns book ... the first one described IIRC)


Regards, Kieran


On Apr 7, 2008, at 4:03 PM, David Avendasora wrote:

Unfortunately, no. There's _lots_ of differences. There are a number  
of attributes that they share, but they each have completely  
different business logic for deriving those values, and they each  
have attributes that are unique to themselves that would make no  
sense to have on the other.


As uncommon as it is to actually need inheritance in the Model, the  
amount of work I would have to do to not use it would far exceed the  
amount of work I have to do to use it.


Believe me, I'm not using it just because it is a cool OO concept.  
Not that I don't do that in other places in my app - just not  
here. :-)


Dave

On Apr 7, 2008, at 3:18 PM, Alexander Spohr wrote:

What are the other differences between RawMaterial and  
ManufacturedPart?
Wouldn’t it be enough to just flag the RawMaterial ones as such and  
just have one class for both?


atze


Am 07.04.2008 um 18:02 schrieb David Avendasora:
You know, I was hoping to avoid the whole question if the domain  
was actually well-modeled or not, but with such dispersions cast  
on my flawless modeling skills, I must respond! :-P


I have 2 types of Parts. One purchased from an outside vendor  
(RawMaterial), and ones that are manufactured (ManufacturedPart).   
A ManufacturedPart is made up of any number of component Parts.  
These component Parts can be _either_  a RawMaterial or another  
ManufacturedPart.


So I have modeled it like this:

ManufacturedPart - BillOfMaterial - BOMComponent - Part

To make things more complicated each given Manufactured Part can  
have one or more ways of making it and therefor have multiple  
BillsOfMaterial.


Hence, I have a branching, recursive relationship tree that can be  
any number of levels deep:


ManufacturedPart - BillOfMaterial - BOMComponent -  
ManufacturedPart - BillOfMaterial - BOMComponent -  
ManufacturedPart - Rinse, lather, repeat.


Or it can be very simple

ManufacturedPart - BillOfMaterial - BOMComponent - RawMaterial

What all this comes down to is that billsOfMaterial() does _not_  
belong on Part as it does not belong on RawMaterial because a  
RawMaterial is NOT manufactured by us so it will never have a  
BillOfMaterial.


But there are several places in my code that I want to recursively  
navigate this tree and I just don't see a right way to do that  
without some variation of instanceOf (in code or in a fetch), a  
case statement or adding the method to Part.


The simplicity of one simple method returning NSArray.emptyArray  
wins. Even though it sullies my object graph, it does so in a much  
less complicated, fragile way.


Dave


On Apr 7, 2008, at 11:26 AM, Chuck Hill wrote:

The real question is whether it makes sense in the domain for a  
Part to have a bill of materials.  The default implementation  
could be


public NSArray billOfMaterials() { return this; }

With

Re: Best Way® to test for existence of a rela tionship

2008-04-08 Thread Chuck Hill



On Apr 7, 2008, at 10:50 AM, David Avendasora wrote:



On Apr 7, 2008, at 1:23 PM, Chuck Hill wrote:


I have 2 types of Parts. One purchased from an outside vendor  
(RawMaterial), and ones that are manufactured (ManufacturedPart).   
A ManufacturedPart is made up of any number of component Parts.  
These component Parts can be _either_  a RawMaterial or another  
ManufacturedPart.


Consider it from a different point of view.  You have parts that  
can be composed of sub-parts.  There are two sub-classes,


1. SimplePart (aka RawMaterial).  This never has any sub-parts.

2. ComplexPart (aka ManufacturedPart).  This has one or more sub- 
parts.


In this scenario, Part.subParts() makes sense for all types.


I'm not sure how this is much different conceptually than what I  
have already.


It is not.  I was just using different names so you might look at it  
with fresh eyes.  I find that tricks like that sometimes help break  
out of a path of thinking.



The problem is that I cannot simplify it that far because there may  
be 5 or more ways of making a given part depending upon which  
Manufacturing Line is being used, the time of year, wether or not a  
piece of equipment on the manufacturing line is broken-down or not,  
etc. I do have the concept of the default BillOfMaterial for a  
given Part, but that is controlled by the user setting a flag on the  
one they want to be default.


So, in theory I could have convenience methods that return the  
subParts of the default BillOfMaterial for the given Part, but in  
most cases, that is not useful information for my users. I need to  
know much more before I can say what the subParts are.



So I have modeled it like this:

ManufacturedPart - BillOfMaterial - BOMComponent - Part


What is BOMComponent?  Why not just ManufacturedPart -  
BillOfMaterial - Part


Or, in my terminology ComplexPart - ConstructionDescription -  
Part


It's actually even more complicated because there are Steps  
between the BillOfMaterial and BOMComponents like so:


BillOfMaterial - Step - BOMComponent

Think of the BillOfMaterial as a recipe to make a specific Part. In  
Step 1 you will use 5 different BOMComponents. Each Step has  
attributes such as instructions, tools used, etc. Each BOMComponent  
has attributes like quantity, unit of measure, etc as well as the  
part.


Yes, that does complicate it.


To make things more complicated each given Manufactured Part can  
have one or more ways of making it and therefor have multiple  
BillsOfMaterial.


Hence, I have a branching, recursive relationship tree that can be  
any number of levels deep:


ManufacturedPart - BillOfMaterial - BOMComponent -  
ManufacturedPart - BillOfMaterial - BOMComponent -  
ManufacturedPart - Rinse, lather, repeat.


Or it can be very simple

ManufacturedPart - BillOfMaterial - BOMComponent - RawMaterial

What all this comes down to is that billsOfMaterial() does _not_  
belong on Part as it does not belong on RawMaterial because a  
RawMaterial is NOT manufactured by us so it will never have a  
BillOfMaterial.


Why are you iterating over Parts calling billOfMaterial()?  What is  
the goal?  What exactly are you doing with this information?  I  
have an idea of what you are missing, but I will wait for an answer  
to this.


In this specific example, I'm adding the specified Part to a  
Manufacturing Schedule and I need to know what subParts (using your  
terminology) need to be scheduled in addition to the Part that was  
ordered. The way I find the subParts that need to be scheduled is to  
open the selected BillOfMaterial for the Part, drill down to the  
components and step through them to see if they need to be scheduled  
as well.


You mention selected BillOfMaterials.  What happens when some of the  
sub-parts are also Manufactured parts?  Does the user manually select  
their BillOfMaterials too?



But there are several places in my code that I want to recursively  
navigate this tree and I just don't see a right way to do that  
without some variation of instanceOf (in code or in a fetch), a  
case statement or adding the method to Part.


The simplicity of one simple method returning NSArray.emptyArray  
wins. Even though it sullies my object graph, it does so in a much  
less complicated, fragile way.


Still seems wrong.


Tell me how to do it right. I'm all ears.



Well, you went and complicated it.  :-)  The Visitor pattern  
suggestion is a good one.  It could be your processing, rather than  
model, that needs a change.



Chuck

--

Practical WebObjects - for developers who want to increase their  
overall knowledge of WebObjects or who are trying to solve specific  
problems.

http://www.global-village.net/products/practical_webobjects





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Re: Best Way® to test for existence of a re lationship

2008-04-08 Thread David Avendasora


Kieran,

Hmm. Your ideas are intriguing to me and I wish to subscribe to your  
newsletter.


I'm going to take a serious look at using this in the future as I can  
see adding other classes and being able to morph from one behavior to  
another could be helpful as well.


Thanks for the heads up!

Dave

On Apr 8, 2008, at 9:32 AM, Kieran Kelleher wrote:

An alternative way to handle this is to use the Strategy design  
pattern and just have one Entity ... Part.


You would then create a PartBehaviour interface that encapsulates  
all the things that vary among the various parts. It would give you  
great flexibility to easily (easier than adding/maintaining another  
entity to the eomodel inheritance hierarchy IMHO) add other kinds of  
parts too such as SubassemblyPart, FinishedPart, ConsumablePart, etc.


A few years ago I had an inheritance hierarchy that was getting  
painful (No Fun) to maintain as the system evolved and new  
requirements had to be implemented . I collapsed the inheritance  
hierarchy into one Entity and implemented the Strategy design  
pattern and this has served me very well (even Fun to add features).


Switching from an inheritance hierarchy to Strategy design pattern  
is very easy if you are already using Single table inheritance  
in fact IIRC, there is no database schema changes required at all.



The downside is that *every* Part has *all* attributes ...  
however the approriate answer is returned when a Part is sent a  
message  so if asked for an attribute that does not make sense  
for it to have, then it would return null or an empty array in the  
case of a to-many.


The advantage of Strategy design pattern is that each entity can  
have any subset of the total attributes, even overlapping subsets  
without a thought or a care as to inheritance layers and overriding  
logic of subclasses.


Of course Stratagy d.p. is not a panacea . sometimes it just  
works better where inheritance design is becoming No Fun to deal  
with, which often happens down the road as requirements change/ 
evolve :-)


However, if you are under pressure to Just Fix It right now, then  
Chuck's solution might be easiest and quickest. If you find the  
inheritance archtecture of Parts is hurting your ability to easily  
add Real World business logic, then check out the Strategy design  
pattern (Head First patterns book ... the first one described IIRC)


Regards, Kieran


On Apr 7, 2008, at 4:03 PM, David Avendasora wrote:

Unfortunately, no. There's _lots_ of differences. There are a  
number of attributes that they share, but they each have completely  
different business logic for deriving those values, and they each  
have attributes that are unique to themselves that would make no  
sense to have on the other.


As uncommon as it is to actually need inheritance in the Model, the  
amount of work I would have to do to not use it would far exceed  
the amount of work I have to do to use it.


Believe me, I'm not using it just because it is a cool OO concept.  
Not that I don't do that in other places in my app - just not  
here. :-)


Dave

On Apr 7, 2008, at 3:18 PM, Alexander Spohr wrote:

What are the other differences between RawMaterial and  
ManufacturedPart?
Wouldn’t it be enough to just flag the RawMaterial ones as such  
and just have one class for both?


atze


Am 07.04.2008 um 18:02 schrieb David Avendasora:
You know, I was hoping to avoid the whole question if the domain  
was actually well-modeled or not, but with such dispersions cast  
on my flawless modeling skills, I must respond! :-P


I have 2 types of Parts. One purchased from an outside vendor  
(RawMaterial), and ones that are manufactured  
(ManufacturedPart).  A ManufacturedPart is made up of any number  
of component Parts. These component Parts can be _either_  a  
RawMaterial or another ManufacturedPart.


So I have modeled it like this:

ManufacturedPart - BillOfMaterial - BOMComponent - Part

To make things more complicated each given Manufactured Part can  
have one or more ways of making it and therefor have multiple  
BillsOfMaterial.


Hence, I have a branching, recursive relationship tree that can  
be any number of levels deep:


ManufacturedPart - BillOfMaterial - BOMComponent -  
ManufacturedPart - BillOfMaterial - BOMComponent -  
ManufacturedPart - Rinse, lather, repeat.


Or it can be very simple

ManufacturedPart - BillOfMaterial - BOMComponent -  
RawMaterial


What all this comes down to is that billsOfMaterial() does _not_  
belong on Part as it does not belong on RawMaterial because a  
RawMaterial is NOT manufactured by us so it will never have a  
BillOfMaterial.


But there are several places in my code that I want to  
recursively navigate this tree and I just don't see a right way  
to do that without some variation of instanceOf (in code or in a  
fetch), a case statement or adding the method to Part.


The simplicity of one simple method returning

Re: Best Way® to test for existence of a re lationship

2008-04-08 Thread Mike Schrag

However, if you are under pressure to Just Fix It right now, then  
Chuck's solution might be easiest and quickest.
Actually, if you're under pressure to Just Fix It right now ... I  
would Just Leave It Alone :)  It's only wrong because we're grumpy  
software developers.  Your current code gets the job done just fine  
and it's not that big of a deal.


ms

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Best Way® to test for existence of a relationsh ip

2008-04-07 Thread David Avendasora


Hi all,

This is more of a Java question than a WO-specific one

I have an Inheritance structure in my app:

Part (abstract Superclass)
RawMaterial (subclass of Part)
ManufacturedPart (subclass of Part)

I have an NSArray of Parts that could be, RawMaterial instances,   
ManufacturedPart instances, or most likely, a mixture of the two.


I want to iterate through the Array and get the contents of the  
Part.billsOfMaterial() (toMany) relationship. The problem is that  
while ManufacturedParts have this relationship, RawMaterials do not.


Right now, I'm using a try-catch block that catches the exception on  
RawMaterial.billsOfMaterial() and just ignores it.


I could also add a billsOfMaterial() method to the RawMaterial class  
that simply returns NSArray.emptyArray.


Is one way better than the other for any reason?

Thanks,

Dave
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Re: Best Way® to test for existence of a relatio nsh ip

2008-04-07 Thread Bob Stuart


Try catch seems expensive to me. Why not just check with
if  (aPart instanceof ManufacturedPart){
do something with aPart.billsOfMaterial()
}

At 9:12 AM -0400 4/7/08, David Avendasora wrote:

Hi all,

This is more of a Java question than a WO-specific one

I have an Inheritance structure in my app:

Part (abstract Superclass)
RawMaterial (subclass of Part)
ManufacturedPart (subclass of Part)

I have an NSArray of Parts that could be, RawMaterial instances,  
ManufacturedPart instances, or most likely, a mixture of the two.


I want to iterate through the Array and get the contents of the 
Part.billsOfMaterial() (toMany) relationship. The problem is that 
while ManufacturedParts have this relationship, RawMaterials do not.


Right now, I'm using a try-catch block that catches the exception on 
RawMaterial.billsOfMaterial() and just ignores it.


I could also add a billsOfMaterial() method to the RawMaterial class 
that simply returns NSArray.emptyArray.


Is one way better than the other for any reason?

Thanks,

Dave
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--
Bob Stuart
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Re: Best Way® to test for existence of a rela tionsh ip

I'd expect the instanceof check will be much more efficient than  
catching an exception.  From an OO design point of view, I'd add a  
billsOfMaterial() method to the Part class that simply returns  
NSArray.emptyArray.  ManufacturedPart will then override this to  
return the correct result for a ManufacturedPart.


Chuck



On Apr 7, 2008, at 6:34 AM, Bob Stuart wrote:


Try catch seems expensive to me. Why not just check with
if  (aPart instanceof ManufacturedPart){
do something with aPart.billsOfMaterial()
}

At 9:12 AM -0400 4/7/08, David Avendasora wrote:

Hi all,

This is more of a Java question than a WO-specific one

I have an Inheritance structure in my app:

Part (abstract Superclass)
RawMaterial (subclass of Part)
ManufacturedPart (subclass of Part)

I have an NSArray of Parts that could be, RawMaterial instances,   
ManufacturedPart instances, or most likely, a mixture of the two.


I want to iterate through the Array and get the contents of the  
Part.billsOfMaterial() (toMany) relationship. The problem is that  
while ManufacturedParts have this relationship, RawMaterials do not.


Right now, I'm using a try-catch block that catches the exception  
on RawMaterial.billsOfMaterial() and just ignores it.


I could also add a billsOfMaterial() method to the RawMaterial  
class that simply returns NSArray.emptyArray.


Is one way better than the other for any reason?

Thanks,

Dave
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Re: Best Way® to test for existence of a rela tionsh ip

2008-04-07 Thread Mike Schrag

I'd expect the instanceof check will be much more efficient than  
catching an exception.

By far ...

From an OO design point of view, I'd add a billsOfMaterial() method  
to the Part class that simply returns NSArray.emptyArray.  
ManufacturedPart will then override this to return the correct  
result for a ManufacturedPart.
Ew gross ... If it's not an attribute of all Parts, then from an OO  
design standpoint it shouldn't be on Part.  I agree if your argument  
is based on the convenience of being able to call billsOfMaterial on  
the entire array, though.


ms

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Re: Best Way® to test for existence of a rela tionsh ip

2008-04-07 Thread David Avendasora



On Apr 7, 2008, at 10:36 AM, Mike Schrag wrote:

I'd expect the instanceof check will be much more efficient than  
catching an exception.

By far ...

From an OO design point of view, I'd add a billsOfMaterial() method  
to the Part class that simply returns NSArray.emptyArray.  
ManufacturedPart will then override this to return the correct  
result for a ManufacturedPart.

Ew gross ...


By far one of my favorite technical arguments.

If it's not an attribute of all Parts, then from an OO design  
standpoint it shouldn't be on Part.  I agree if your argument is  
based on the convenience of being able to call billsOfMaterial on  
the entire array, though.


Yeah, I'm getting the impression that there's no really ungross OO  
way to do this. I think this and instanceOf are equally gross  
because if I add other classes that have a billsOfMaterial()  
relationship, then I'd have to remember to come here and add it to the  
list of things instanceOf checks.


I think I'll go with adding the billsOfMaterial() method to Part  
because then I can use this same logic in more places without having  
to write the instanceOf check every time.


Still seems not right, but it's easier. =:-0

Dave



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Re: Best Way® to test for existence of a rela t ionsh ip

2008-04-07 Thread Bob Stuart


At 11:20 AM -0400 4/7/08, David Avendasora wrote:

On Apr 7, 2008, at 10:36 AM, Mike Schrag wrote:

I'd expect the instanceof check will be much more efficient than 
catching an exception.

By far ...

From an OO design point of view, I'd add a billsOfMaterial() 
method to the Part class that simply returns NSArray.emptyArray. 
ManufacturedPart will then override this to return the correct 
result for a ManufacturedPart.

Ew gross ...


By far one of my favorite technical arguments.

If it's not an attribute of all Parts, then from an OO design 
standpoint it shouldn't be on Part.  I agree if your argument is 
based on the convenience of being able to call billsOfMaterial on 
the entire array, though.


Yeah, I'm getting the impression that there's no really ungross OO 
way to do this. I think this and instanceOf are equally gross 
because if I add other classes that have a billsOfMaterial() 
relationship, then I'd have to remember to come here and add it to 
the list of things instanceOf checks.


I think I'll go with adding the billsOfMaterial() method to Part 
because then I can use this same logic in more places without having 
to write the instanceOf check every time.


If you want to avoid adding the method to Part you could create an 
interface and have the instance of check that. Then only the classes 
that have this would implement the interface. That way you only have 
to change things when you make the new class and only in the class 
not however many places you might do the instanceof check.



Still seems not right, but it's easier. =:-0

Dave



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Re: Best Way® to test for existence of a rela tionsh ip



On Apr 7, 2008, at 7:36 AM, Mike Schrag wrote:

I'd expect the instanceof check will be much more efficient than  
catching an exception.

By far ...

From an OO design point of view, I'd add a billsOfMaterial() method  
to the Part class that simply returns NSArray.emptyArray.  
ManufacturedPart will then override this to return the correct  
result for a ManufacturedPart.

Ew gross ...


Less gross than doing instanceof, hands down.


If it's not an attribute of all Parts, then from an OO design  
standpoint it shouldn't be on Part.  I agree if your argument is  
based on the convenience of being able to call billsOfMaterial on  
the entire array, though.



The real question is whether it makes sense in the domain for a Part  
to have a bill of materials.  The default implementation could be


public NSArray billOfMaterials() { return this; }

With complex parts overriding it as appropriate.  It could just be  
that the model / design is incomplete and leading David into doing Bad  
Things in code.


Otherwise, (a) the model is just wrong, or (b) David's processing is  
just wrong.



Chuck


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Practical WebObjects - for developers who want to increase their  
overall knowledge of WebObjects or who are trying to solve specific  
problems.

http://www.global-village.net/products/practical_webobjects





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Re: Best Way® to test for existence of a rela tionsh ip



On Apr 7, 2008, at 8:26 AM, Bob Stuart wrote:


At 11:20 AM -0400 4/7/08, David Avendasora wrote:

On Apr 7, 2008, at 10:36 AM, Mike Schrag wrote:

I'd expect the instanceof check will be much more efficient than  
catching an exception.

By far ...

From an OO design point of view, I'd add a billsOfMaterial()  
method to the Part class that simply returns NSArray.emptyArray.  
ManufacturedPart will then override this to return the correct  
result for a ManufacturedPart.

Ew gross ...


By far one of my favorite technical arguments.

If it's not an attribute of all Parts, then from an OO design  
standpoint it shouldn't be on Part.  I agree if your argument is  
based on the convenience of being able to call billsOfMaterial on  
the entire array, though.


Yeah, I'm getting the impression that there's no really ungross  
OO way to do this. I think this and instanceOf are equally gross  
because if I add other classes that have a billsOfMaterial()  
relationship, then I'd have to remember to come here and add it to  
the list of things instanceOf checks.


I think I'll go with adding the billsOfMaterial() method to Part  
because then I can use this same logic in more places without  
having to write the instanceOf check every time.


If you want to avoid adding the method to Part you could create an  
interface and have the instance of check that. Then only the classes  
that have this would implement the interface. That way you only have  
to change things when you make the new class and only in the class  
not however many places you might do the instanceof check.



Using instanceof on a member of an inheritance hierarchy is a bad code  
smell.  It is the code's ways of telling you that your design is  
wrong.  IMO.



Chuck

--

Practical WebObjects - for developers who want to increase their  
overall knowledge of WebObjects or who are trying to solve specific  
problems.

http://www.global-village.net/products/practical_webobjects





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Re: Best Way® to test for existence of a rela tionsh ip

2008-04-07 Thread Mike Schrag

Using instanceof on a member of an inheritance hierarchy is a bad  
code smell.  It is the code's ways of telling you that your design  
is wrong.  IMO.
I was going to say in my original that instanceof is a code smell,  
also, actually, but we disagree on the level of ugliness :)  You're  
just cheating -- avoiding an instanceof by mucking up your object  
model doesn't fix the problem, it just hides it, and makes your object  
model more confusing at the same time.  If there are classes in your  
hierarchy that don't implement the method, it's not part of the  
interface.  This implies to me that the original design is wrong,  
unless it really is the case that it's reasonable to ask the other  
part types their billsOfMaterials, and they just don't have any.  But  
given the original description, I'm assuming the model is right and  
that's not the case.  Bob's suggestion of declaring an additional  
interface that defines that method definitely seems better, but it  
doesn't clean up the instanceof check.  Even better would be to  
construct your original fetch to only fetch the objects that this  
check actually applies to (though as I think about it, this is really  
just a variation on instanceof -- you push the instanceof,  
conceptually, into the fetch instead of in Java, but if the model  
doesn't allow incorrect traversal, that seems better to me).


ms

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Re: Best Way® to test for existence of a rela tionsh ip