Re: [Zope] reading zope.config file for ClientStorage

2005-10-12 Thread Chris Withers

Mika, David P (Research) wrote:

OK, the opts object really did have everything loaded.  On careful inspection the 
opts.configroot has an attribute databases with a list of 
Zope.Startup.datatypes.ZopeDatabase instances.  I can do what I originally set out to do 
which was to open a ZEO.ClientStorage configured from the zope-with-zeo.conf file (the 
ZEO.ClientStorage is now wrapped in a ZEOClient object):

from Zope.Startup import options, handlers
opts = options.ZopeOptions()
opts.configfile='c:\Zope-Instance-Test\etc\zope-with-zeo.conf'
opts.load_schema()
opts.load_configfile()
for db in opts.configroot.databases:
 if is instance(db.config.storage, ZODB.config.ZEOClient):
  db.config.storage.open()


Great, right? Or am I missing some outstanding issue?

cheers,

Chris

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Re: [Zope] reading zope.config file for ClientStorage

2005-10-11 Thread Chris Withers

Mika, David P (Research) wrote:

from Zope.Startup import options, handlers
opts = options.ZopeOptions()
opts.configfile='c:\Zope-Instance-Test\etc\zope-with-zeo.conf'
opts.load_schema()
opts.load_configfile()


What does your zope-with-zeo.conf file look like?


The schema file that is being used by ZopeOptions is Zope/Startup/zopeschema.xml.  
This only has a skeleton zodb_db section.  It looks like the meat  potatoes 
are in ZODB/component.xml, but I don't see how that is actually pulled in.


There will be an import statement in zopeschema.xml

cheers,

Chris

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   - http://www.simplistix.co.uk

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RE: [Zope] reading zope.config file for ClientStorage

2005-10-11 Thread Mika, David P (Research)
OK, the opts object really did have everything loaded.  On careful inspection 
the opts.configroot has an attribute databases with a list of 
Zope.Startup.datatypes.ZopeDatabase instances.  I can do what I originally set 
out to do which was to open a ZEO.ClientStorage configured from the 
zope-with-zeo.conf file (the ZEO.ClientStorage is now wrapped in a ZEOClient 
object):

from Zope.Startup import options, handlers
opts = options.ZopeOptions()
opts.configfile='c:\Zope-Instance-Test\etc\zope-with-zeo.conf'
opts.load_schema()
opts.load_configfile()
for db in opts.configroot.databases:
 if is instance(db.config.storage, ZODB.config.ZEOClient):
  db.config.storage.open()

What does your zope-with-zeo.conf file look like?

My zope-with-zeo.conf file is pretty standard except for a designation to use a 
zeoclient.  I've also included a username and password as my zeo server is 
using digest authentication:

 zodb_db main
   mount-point /
   zeoclient
 server localhost:8090
 storage 1
 name zeostorage
 var $INSTANCE/var
 username metalfor
 password my_zeo_cleartext_password
   /zeoclient
 /zodb_db


Thanks much!
Dave Mika
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Re: [Zope] reading zope.config file for ClientStorage

2005-10-10 Thread Chris Withers

Mika, David P (Research) wrote:
To initialize ZEO clients with ClientStorage I need info such as host, port, etc.  All the needed stuff is tucked away nicely in the zope.config file and I would like to be using the zope machinery access it.  I know that what I need is in there somewhere, but when I try to follow how it happens in say the Zope startup, I get lost in all the dependencies and my head starts swirling.  


I would like to be able to use something like is in ZODB/config.py:

class ZEOClient(BaseConfig):

def open(self):
from ZEO.ClientStorage import ClientStorage
# config.server is a multikey of socket-address values
# where the value is a socket family, address tuple.
L = [server.address for server in self.config.server]
return ClientStorage(
L,
storage=self.config.storage,
cache_size=self.config.cache_size,
name=self.config.name,
client=self.config.client,
var=self.config.var,
min_disconnect_poll=self.config.min_disconnect_poll,
max_disconnect_poll=self.config.max_disconnect_poll,
wait=self.config.wait,
read_only=self.config.read_only,
read_only_fallback=self.config.read_only_fallback,
username=self.config.username,
password=self.config.password,
realm=self.config.realm)

here BaseConfig has that bit of magic that has self.config.

I guess I need to know how to instantiate this class.  Any ideas?


Have a look at the run.py file in Stepper:

http://www.simplistix.co.uk/software/zope/stepper

It shows you how to parse zope.conf without having to start Zope up...

You may wish to wait for Stepper 1.3.0, though, which shows you how to 
do this for both Zope 2.7 and Zope 2.8...


cheers,

Chris

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   - http://www.simplistix.co.uk
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RE: [Zope] reading zope.config file for ClientStorage

2005-10-10 Thread Mika, David P (Research)
I've taken a look at stepper and dug into the zope source again.  It looks like 
both are relying on a startup script akin to zopectl to marshal everything 
correctly.  I would rather not be using a startup script (besides I couldn't 
sort it out); this is what I have so far:

from Zope.Startup import options, handlers
opts = options.ZopeOptions()
opts.configfile='c:\Zope-Instance-Test\etc\zope-with-zeo.conf'
opts.load_schema()
opts.load_configfile()

unfortunately in the resulting options object, I'm not getting the stuff I need 
from the conf file, namely the ZODB storage stuff needed for ClientStorage.

The schema file that is being used by ZopeOptions is 
Zope/Startup/zopeschema.xml.  This only has a skeleton zodb_db section.  It 
looks like the meat  potatoes are in ZODB/component.xml, but I don't see how 
that is actually pulled in.

Any more ideas?
Dave


-Original Message-
From: Chris Withers [mailto:[EMAIL PROTECTED]
Sent: Monday, October 10, 2005 8:57 AM
To: Mika, David P (Research)
Cc: zope@zope.org
Subject: Re: [Zope] reading zope.config file for ClientStorage


Mika, David P (Research) wrote:
 To initialize ZEO clients with ClientStorage I need info such as host, port, 
 etc.  All the needed stuff is tucked away nicely in the zope.config file and 
 I would like to be using the zope machinery access it.  I know that what I 
 need is in there somewhere, but when I try to follow how it happens in say 
 the Zope startup, I get lost in all the dependencies and my head starts 
 swirling. 

 I would like to be able to use something like is in ZODB/config.py:

   class ZEOClient(BaseConfig):

   def open(self):
   from ZEO.ClientStorage import ClientStorage
   # config.server is a multikey of socket-address values
   # where the value is a socket family, address tuple.
   L = [server.address for server in self.config.server]
   return ClientStorage(
   L,
   storage=self.config.storage,
   cache_size=self.config.cache_size,
   name=self.config.name,
   client=self.config.client,
   var=self.config.var,
   min_disconnect_poll=self.config.min_disconnect_poll,
   max_disconnect_poll=self.config.max_disconnect_poll,
   wait=self.config.wait,
   read_only=self.config.read_only,
   read_only_fallback=self.config.read_only_fallback,
   username=self.config.username,
   password=self.config.password,
   realm=self.config.realm)

 here BaseConfig has that bit of magic that has self.config.

 I guess I need to know how to instantiate this class.  Any ideas?

Have a look at the run.py file in Stepper:

http://www.simplistix.co.uk/software/zope/stepper

It shows you how to parse zope.conf without having to start Zope up...

You may wish to wait for Stepper 1.3.0, though, which shows you how to
do this for both Zope 2.7 and Zope 2.8...

cheers,

Chris

--
Simplistix - Content Management, Zope  Python Consulting
- http://www.simplistix.co.uk
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