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From: "Andreas Veithen (JIRA)" <jira@apache.org>
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Subject: [jira] [Moved] (AXIS2-5534) Caching InitialContexts in JMS
 transport sender
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     [ https://issues.apache.org/jira/browse/AXIS2-5534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andreas Veithen moved TRANSPORTS-12 to AXIS2-5534:
--------------------------------------------------

    Component/s:     (was: JMS)
                 JMS
            Key: AXIS2-5534  (was: TRANSPORTS-12)
        Project: Axis2  (was: Axis2 Transports)
    
> Caching InitialContexts in JMS transport sender
> -----------------------------------------------
>
>                 Key: AXIS2-5534
>                 URL: https://issues.apache.org/jira/browse/AXIS2-5534
>             Project: Axis2
>          Issue Type: Improvement
>          Components: JMS
>            Reporter: Rajika Kumarasiri
>              Labels: JMS, transport
>         Attachments: AXIS2-4658.patch, AXIS2-4658.patch
>
>
> When using the JMS transport sender for sending messages  to external broker it creates InitialContext per message. This is actually unnecessary since we can cache and use the same intialContext., and also some brokers behave strangely when re-creating the initialContext. This patch cache the InitalContext using the EPR as the key. User can specify to use caching using the property "transport.jms.CacheInitialContext" set to true. Synchronization has done as required since creating InitialContext is not thread safe and also JNDI look up. 
> User has to define an Initial Context definition in the JMSTransport sender configuration as follows. 
> <transportSender name="jms" class="org.apache.axis2.transport.jms.JMSSender">
>         <parameter name="default" locked="false">
>         	<parameter name="java.naming.factory.initial" locked="false">org.apache.activemq.jndi.ActiveMQInitialContextFactory</parameter>
>         	<parameter name="java.naming.provider.url" locked="false">tcp://localhost:61616</parameter>
>         	<parameter name="transport.jms.ConnectionFactoryJNDIName" locked="false">QueueConnectionFactory</parameter>
> 		<parameter name="transport.jms.ConnectionFactoryType" locked="false">queue</parameter>
> 		<parameter name="transport.jms.CacheLevel">producer</parameter>
>                 <parameter name="transport.jms.CacheInitialContext">true</parameter>
>         </parameter>
> </transportSender> 
> A related discusstions also can be found here: http://wso2.org/forum/thread/9281
> Some of the improvements in this patch was suggested by Paul Inglis who also submitted the patch for issue - https://issues.apache.org/jira/browse/AXIS2-4625 

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