[jboss-jira] [JBoss JIRA] Closed: (JBMESSAGING-1247) Remove requirement for JMX to use JGroups

[Tim Fox (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBMESSAGING-1247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Fox closed JBMESSAGING-1247.
--------------------------------



> Remove requirement for JMX to use JGroups
> -----------------------------------------
>
>                 Key: JBMESSAGING-1247
>                 URL: https://jira.jboss.org/jira/browse/JBMESSAGING-1247
>             Project: JBoss Messaging
>          Issue Type: Task
>    Affects Versions: 1.4.1.beta1
>            Reporter: Brian Stansberry
>            Assignee: Jeff Mesnil
>            Priority: Minor
>             Fix For: 1.4.1.CR1
>
>
> The current JGroups integration uses JMX to get ahold of a Channel:
> public Channel createControlChannel() throws Exception
> {
>    return (Channel) server.invoke(this.channelFactory, MUX_OPERATION,
>       new Object[]{controlStack, uniqueID + "-CTRL", Boolean.TRUE, uniqueID}, MUX_SIGNATURE);
> }
> The channelFactory member is an ObjectName injected into MessagingPostOfficeService. Better is to expose a property of type org.jgroups.ChannelFactory and inject an instance of that. That's the POJI interface for an object that provides JGroups channels.
> Background:
> JGroups intends to remove the legacy org.jgroups.jmx.JChannelFactoryMBean interface that is being invoked in the above code.  That code is reflection based, so as long as a service that exposes the MUX_OPERATION signature is registered in JMX, the call will still work.  AS 5 will ensure that such a service is registered, without using the org.jgroups.jmx.JChannelFactoryMBean itself. So, the above JMX-based code will work, and this isn't an urgent issue.  But, this usage does tie JBM clustering to JMX, rather than allowing simple MC integration or even manual instantiation.

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