Re: [Chandler-dev] Problem with stamping and collection notifications/ kind watchers

Tue, 18 Jul 2006 15:31:31 -0700 

Just a quick update:
At first I thought this was a problem with TwistedTasks, but it turns out this isn't the case. I've attached an updated version of the test parcel which doesn't use TwistedTasks, but has the same problem. 

Thanks again,

Travis

Travis wrote:


Hi all,


I've found something which seems like a bug in the interaction between 
the notification framework and stamping.



When new mail messages enter Chandler, I'd like to annotate them and 
put them into a mail directory Item so they will be accessible to the 
IMAP server. Currently, this works perfectly for all the entry cases 
I've tested (the IMAP client, Item>New Item>Message, drag and drop 
from Thunderbird/Mail.app/etc) except stamping. When a message is 
stamped, a repository commit during the callback causes a very nasty 
error (which I've reproduced at the bottom of this page).



A bit more exploration led to the creation of a parcel which 
illustrates this bug. It appears that the problem is indeed caused by 
the commit during an onCollectionNotification or watchKind callback. 
Removing the commit fixes the problem, and the test parcel is 
sufficiently simple that it seems likely the bug is coming from code 
already in Chandler's trunk.


Grant did some exploring and found the following:


So, here's what's seems to be going on:


The self.onCollectionNotification() callback that results from 
notificationQueueSubscribe() is always happening in the main thread. 
When you commit your changes (as you should), that causes a whole 
bunch of stuff to happen, including changes to CPIA blocks in the 
app. That eventually causes CPIA to get into a weird state; probably 
what's happening is the commit in the middle of the refresh exposes 
some dependency on the order of notification processing. 






After discussing this with Grant, Andi, and Bryan, Grant recommended I 
take this to the list.



Does this seem like a bug to people who know more about these 
mechanisms? Should I file a bug report? If yes, is there any 
documentation on the right way to file one?


Thanks very much

-Travis






Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
640, in OnCommand

   blockEvent = getattr (block, 'event', None)

chandlerdb.item.ItemError.StaleItemError: <MailMessageButtonBlock 
(stale): 818e89e4-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
640, in OnCommand

   blockEvent = getattr (block, 'event', None)

chandlerdb.item.ItemError.StaleItemError: <TaskStampBlock (stale): 
818eb662-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
640, in OnCommand

   blockEvent = getattr (block, 'event', None)

chandlerdb.item.ItemError.StaleItemError: <CalendarStampBlock (stale): 
818ed6d8-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
640, in OnCommand

   blockEvent = getattr (block, 'event', None)

chandlerdb.item.ItemError.StaleItemError: <PrivateSwitchButtonBlock 
(stale): 818f1102-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
640, in OnCommand

   blockEvent = getattr (block, 'event', None)

chandlerdb.item.ItemError.StaleItemError: <ReadOnlyIconBlock (stale): 
818f4d20-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
655, in OnCommand

   Block.post (blockEvent, arguments, block)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 183, in post

   self.dispatchEvent (event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 1028, in dispatchEvent

   bubbleUpCallMethod (blockOrWidget, methodName, event)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 935, in bubbleUpCallMethod

   blockOrWidget = blockOrWidget.parentBlock

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>

Traceback (most recent call last):

 File 
"/Users/travis/dev/chandler/chandler/application/Application.py", line 
199, in OnClose

   Block.finishEdits()

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 704, in finishEdits

   saveValueMethod(onBlock)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/ControlBlocks.py", 
line 1490, in saveValue

   editor.EndControlEdit(self.item, self.attributeName, widget)

 File 
"/Users/travis/dev/chandler/chandler/parcels/osaf/framework/blocks/Block.py", 
line 306, in getProxiedContents

   return getProxiedItem(getattr(self, 'contents', None))

chandlerdb.item.ItemError.StaleItemError: 
<DetailSynchronizedAttributeEditorBlock (stale): 
81890f64-16a7-11db-a954-93550c3bde89>


------------------------------------------------------------------------

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Open Source Applications Foundation "chandler-dev" mailing list
http://lists.osafoundation.org/mailman/listinfo/chandler-dev

 






Attachment:
collectionNotificationProblem.tar.gz

Description: GNU Zip compressed data


_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Open Source Applications Foundation "chandler-dev" mailing list
http://lists.osafoundation.org/mailman/listinfo/chandler-dev






















					Reply via email to