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From "Aaron Mulder (JIRA)" <...@geronimo.apache.org>
Subject [jira] Commented: (GERONIMO-1680) MDB without activation-config in openejb-jar.xml silently fails
Date Sat, 29 Apr 2006 03:16:37 GMT
    [ http://issues.apache.org/jira/browse/GERONIMO-1680?page=comments#action_12377062 ] 

Aaron Mulder commented on GERONIMO-1680:
----------------------------------------

Upon consideration, this doesn't seem so straightforward.

 - We don't know what the JMS provider is, so we don't know which activation-config settings
are sufficient for it to be "working" (though ActivationSpec can be validated)

 - The settings can be provided in ejb-jar.xml (in the message-driven-bean/activation-config
area), and we don't know which of *those* settings might be sufficient

 - If a message-destination-link is specified, that needs to be decoded to an admin object,
and the physical name needs to be pulled out of that (that's a product-specific property).

Here's what I propose:

 - Create a Map to hold the activation config settings
 - Look up the ActivationSpec and determine whether it's class name is "org.activemq.ra.ActiveMQActivationSpec"
   - If so, do the admin object arithmatic and pop that value into "destination" in the map
 - Write all the values from ejb-jar.xml into the map
 - Write all the values from openejb-jar.xml into the map
 - Iterate the map and try to apply all the properties to the ActivationSpec
 - Temporarily instantiate the ActivationSpec, apply all the properties, and validate it


> MDB without activation-config in openejb-jar.xml silently fails
> ---------------------------------------------------------------
>
>          Key: GERONIMO-1680
>          URL: http://issues.apache.org/jira/browse/GERONIMO-1680
>      Project: Geronimo
>         Type: Bug
>     Security: public(Regular issues) 
>   Components: ActiveMQ, OpenEJB
>     Versions: 1.0
>     Reporter: Aaron Mulder
>     Assignee: Aaron Mulder
>     Priority: Critical
>      Fix For: 1.1

>
> I created a queue and sent a couple messages to it.
> Then I created an MDB with a message-destination-type of javax.jms.Queue and a message-destination-link
pointing to a message-destination with the name of the Queue.  It seems like this is enough
information to point the MDB to that queue, assuming that openejb-jar.xml lists the resource
adapter for the MDB.
> This deployed successfully, but no messages were received by the MDB.
> Adding an activation-config section to openejb-jar.xml fixed the problem -- the pending
messages were received during deployment.
> One of these two issues strikes me as a bug:
>  1) Why wasn't the MDB hooked up to the queue without needing an activation-config block
in openejb-jar.xml?
>  2) If that's an error, why is activation-config optional for an MDB in openejb-jar.xml
and why didn't it cause a deployment error?
> In any case, I think deployment should always fail if an MDB is not actually hooked up
to a destination.

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