Axel Podehl created QPID-4992:
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Summary: preserve all AMQP properties in JMS AMQP 1.0 API, so
AMQP->JMS->AMQP works
Key: QPID-4992
URL: https://issues.apache.org/jira/browse/QPID-4992
Project: Qpid
Issue Type: Improvement
Components: Java Client
Affects Versions: 0.22
Environment: all
Reporter: Axel Podehl
As I understand from QPID-3380 there is no way to retrieve all AMQP header
properties (e.g. contentType) with the Java API.
In my case, I have a generic JMS record&replay program and would want to use it
to record an AMQP message and replay it, simply using the QPid API, but unless
I do some nasty type-casts, important AMQP properties are lost, for example
AMQP content type.
Interestingly enough, if I use the ActiveMQ transport transformer and receive
AMQP messages through the ActiveMQ JMS API, all properties are copied for me:
https://cwiki.apache.org/confluence/display/ACTIVEMQ/AMQP
So receiving an AMQP messages using the ActiveMQ JMS API gives me more
information than with the Qpid AMQP JMS API, which is strange.
Qpid's JMS API should be the expert on AMQP properties, not ActiveMQ's message
transformer.
Wouldn't it make sense to deploy the same mapping of AMQP to JMS properties
(https://cwiki.apache.org/confluence/display/ACTIVEMQ/AMQP) in the QPid API
itself ?
Or at least have an option (e.g. in the ConnectionFactory) to do so ?
That way a bridge of AMQP -> JMS -> AMQP wouldn't loose important information
but could still stick with the real JMS API.
Please note, it's quite common for JMS providers to extend the list of
properties with a set of properties have a 'JMS' (or better a 'JMSX') prefix.
For example MQ:
http://publib.boulder.ibm.com/infocenter/wmqv6/v6r0/index.jsp?topic=%2Fcom.ibm.mq.csqzaw.doc%2Fuj25450_.htm
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