[jboss-jira] [JBoss JIRA] Commented: (JBAS-6808) expose cluster partition name via some ManagedObject

[Brian Stansberry (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBAS-6808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12470717#action_12470717 ] 

Brian Stansberry commented on JBAS-6808:
----------------------------------------

Accessing the HAPartition MOs:

There can be more than one HAPartition deployed in an AS, so we use the partitionName property as the MO's name, i.e.

   @ManagementProperty(use={ViewUse.CONFIGURATION}, description="The partition's name")
   @ManagementObjectID(type="HAPartition")
   public String getPartitionName()
   {
      return this.partitionName;
   }

So, you can't just look up the HAPartition ManagedComponent via some fixed name. Instead, use the ComponentType:

ManagementView mgtView = getManagementView(); 
ComponentType type = new ComponentType("MCBean", "HAPartition");
Set<ManagedComponent> hapartitions = mgtView.getComponentsForType(type);
for (ManagedComponent mc : hapartitions)
{
   System.out.println("Partition name is " + mc.getProperty("partitionName");
}

> expose cluster partition name via some ManagedObject
> ----------------------------------------------------
>
>                 Key: JBAS-6808
>                 URL: https://jira.jboss.org/jira/browse/JBAS-6808
>             Project: JBoss Application Server
>          Issue Type: Sub-task
>      Security Level: Public(Everyone can see) 
>          Components: ProfileService
>    Affects Versions: JBossAS-5.1.0.GA
>            Reporter: Ian Springer
>            Assignee: Brian Stansberry
>            Priority: Critical
>             Fix For: JBossAS-5.2.0.Beta1
>
>
> In the as4 plugin, we exposed the following trait:
>           <metric property="partitionName" dataType="trait" displayType="summary"
>                   description="the name of the cluster partition this app server instance belongs to"/>
> which we obtained via JMX as follows:
>     private String getPartitionName() {
>         ObjectNameQueryUtility queryUtility = new ObjectNameQueryUtility(
>             "jboss:partitionName=%partitionName%,service=DistributedReplicantManager");
>         try {
>             List<EmsBean> mBeans = loadConnection().queryBeans(queryUtility.getTranslatedQuery());
>             if (mBeans.size() == 1) {
>                 if (queryUtility.setMatchedKeyValues(mBeans.get(0).getBeanName().getKeyProperties())) {
>                     return queryUtility.getVariableValues().get("partitionName");
>                 }
>             }
>         } catch (Exception e) {
>             log.error("Could not load partition name as connection could not be loaded");
>         }
>         return null;
>     }
> We need this value exposed via some ManagedObject so we can provide the same trait in the as5 plugin.

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