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Posted to dev@qpid.apache.org by "Robbie Gemmell (JIRA)" <ji...@apache.org> on 2010/11/01 11:11:28 UTC
[jira] Updated: (QPID-2848) BasicMessageProducer_0_10 contains dead
and questionable code
[ https://issues.apache.org/jira/browse/QPID-2848?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robbie Gemmell updated QPID-2848:
---------------------------------
Fix Version/s: (was: 0.7)
Updating 'Fix For' to Unknown on issues not targeted for 0.8
> BasicMessageProducer_0_10 contains dead and questionable code
> -------------------------------------------------------------
>
> Key: QPID-2848
> URL: https://issues.apache.org/jira/browse/QPID-2848
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: M3, M4, 0.5, 0.6
> Reporter: Robbie Gemmell
>
> In BasicMessageProducer_0_10, there is a field named _preAcquire. Its value is set true by default and toggled false at construction time if the given destination is an instance of AMQQueue.
> During the notifyMessage() method, when client side selector evaluation of the incoming message is performed in the checkPreConditions() method, if the filter indicates the message is not a match then the _preAcquire field is used to determine acknowledgement and/or release actions to take that would seem to indicate the _preAcquire field is meant to describe the session acquire mode. Judging this value based on the incoming destination does not seem correct as this is actually a property of the Session used.
> Subsequent to the above mentioned uses the _preAcquire field is also used to determine whether to accept the message.
> Further to the above, the code called to perform acknowledgement and releases is dead and can never actually execute because it too depends on the _preAcquire field but inverted from the previous use:
> if (_preAcquire)
> {
> ...
> acknowledgeMessage(message);
> }
> else
> {
> ...
> releaseMessage(message);
> }
> followed by:
> private void acknowledgeMessage(AbstractJMSMessage message) throws AMQException
> {
> if (!_preAcquire)
> {
> ...
> }
> }
> and:
> private void releaseMessage(AbstractJMSMessage message) throws AMQException
> {
> if (_preAcquire)
> {
> ...
> }
> }
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