Hi Jeff,
> I'm currently working on an AMQP gateway for the JBoss ESB using the
> QPid Java client libraries. I have gotten it to work ... but did
> experience a few issues along the way. I made modifications to the
> JBoss ESB to accommodate the problem I was experiencing. Please see the
> ESB forum post for details :
>
> http://www.jboss.com/index.html?module=bb&op=viewtopic&t=150019
The idea is that when you are referring to connection factories or
destinations you don't include the prefix "destination" or
"connectionfactory". So in your example you should make the following
change:
<jms-provider name="JMS"
connection-factory="connectionfactory.qpidConnectionFactory">
<property name="jndi-prefixes"
value="connectionfactory.,destination." />
<property name="java.naming.factory.initial"
value="org.apache.qpid.jndi.PropertiesFileInitialContextFactory"/>
<property name="connectionfactory.qpidConnectionFactory"
value="amqp://guest:gu...@clientid/virtualHost?brokerlist='tcp://ratwater:5672'"/>
<property name="destination.Alpha_Co"
value="direct://usmc.tracks/Alpha_Co_queue?routingkey='Alpha_Co_key'"/>
<jms-bus busid="quickstartGwChannel">
<jms-message-filter dest-type="QUEUE"
dest-name="Alpha_Co" /><!-- NOTE THE CHANGE ON THIS LINE -->
</jms-bus>
</jms-provider>
The reason for having prefixes is that the config is just simple
name/value pairs and there is no other way to distinguish the "type"
of the item being defined. This is even the case in the example above
- for example, the connection factory is not distinguishable from the
destination unless you want to attempt to parse each item and figure
it out which is messy.
However when looking up the items from JNDI it is redundant to keep
the prefix, so you don't use them. If you migrate to using an LDAP
server for example, which allows a hierarchy for the names, you would
not want to have to put prefixes in the names (or change the rest of
your config or code to change the lookup name).
ActiveMQ also does this. I am not sure about other providers (which
may or may not provide a properties file facade for JNDI).
I hope this clarifies things.
Robert
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