qpid-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Robbie Gemmell (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-3817) QueueBrowser does not work with the JNDI destination addressing scheme
Date Mon, 13 Feb 2012 01:27:00 GMT

    [ https://issues.apache.org/jira/browse/QPID-3817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13206610#comment-13206610
] 

Robbie Gemmell commented on QPID-3817:
--------------------------------------

Hi Praveen,

Given how long this bug seems to have been present, its funny that this is the second time
I have discussed it in the last couple weeks hehe. Rajith had spotted it recently and mentioned
he is working on some changes to the Destination handling, so I suggested I'd prefer to wait
for those changes for a proper fix (the destination heirarchy is really more at fault than
the QueueBrowser code is, though its wrong too) than just make a quick change to get it working
seeing as there is a workaround (using 'queue.' entries in the JNDI file) and noone had noticed
it in all that time (until you did :P). Your change is nice and small though so I have applied
it.

I can't really comment on the seperate paths for creating queues as I didnt write it and haven't
had all that much reason to cross paths with it, but I agree having a single path (a factory,
perhaps) seems like it would be an obvious approach. We arent likely to deprecate the older
addressing scheme any time soon for the existing client, its the only format currnetly supported
for the older protocol versions and there are what you might say large numbers of users still
depending on it. Work should soon be underway on our client for AMQP 1.0 though, which is
intended to be seperate from the current client to let us start afresh with a different design
and include such breaks with the past.
                
> QueueBrowser does not work with the JNDI destination addressing scheme
> ----------------------------------------------------------------------
>
>                 Key: QPID-3817
>                 URL: https://issues.apache.org/jira/browse/QPID-3817
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Broker
>    Affects Versions: 0.15
>            Reporter: Praveen Murugesan
>              Labels: create, jndi, queue
>             Fix For: 0.15
>
>         Attachments: QueueBrowserPatch.patch
>
>
> I create my queue using the JNDI properties, and when I try to create a queue browser
from the Destination object, I get the
> java.lang.ClassCastException: org.apache.qpid.client.AMQAnyDestination cannot be cast
to org.apache.qpid.client.AMQQueue
> 	at org.apache.qpid.client.AMQSession.createBrowser(AMQSession.java:963)
> 	at org.apache.qpid.client.AMQSession.createBrowser(AMQSession.java:950)
> A sample code snippet is below; (just to give an idea).
> Properties properties = new Properties();
> String queueAddress = "T1;{create: always , node : {type : queue, durable : true}}"
> properties.put("destination.T1", queueAddress);
> InitialContext ctx = new InitialContext(properties);
> Destination queue = (Destination) ctx.lookup(queueName);
> QueueBrowser queueBrowser = qpidSession.createBrowser(queueRef);
> triggers =>
> java.lang.ClassCastException: org.apache.qpid.client.AMQAnyDestination cannot be cast
to org.apache.qpid.client.AMQQueue
> 	at org.apache.qpid.client.AMQSession.createBrowser(AMQSession.java:963)
> 	at org.apache.qpid.client.AMQSession.createBrowser(AMQSession.java:950)
> The createBrowser call is part of JMS. However this part of the API cannot
> be used with Destinations defined using the addressing scheme.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

---------------------------------------------------------------------
Apache Qpid - AMQP Messaging Implementation
Project:      http://qpid.apache.org
Use/Interact: mailto:dev-subscribe@qpid.apache.org


Mime
View raw message