I haven't looked at it carefully, but what you wrote seems valid. FYI, here's
how org.jboss.ha.jmx.HAServiceMBeanSupport finds its partition. I know this
query works and finds the partition. This could be modified to exclude matching
on an expected partition name, etc.
| protected HAPartition findHAPartitionWithName(String name) throws
Exception
| {
| log.debug("findHAPartitionWithName, name="+name);
| HAPartition result = null;
| QueryExp classEQ = Query.eq(Query.classattr(),
| Query.value(ClusterPartition.class.getName()));
| QueryExp matchPartitionName = Query.match(Query.attr("PartitionName"),
| Query.value(name));
| QueryExp exp = Query.and(classEQ, matchPartitionName);
| Set mbeans = this.getServer().queryMBeans(null, exp);
| if (mbeans != null && mbeans.size() > 0)
| {
| ObjectInstance inst = (ObjectInstance) (mbeans.iterator().next());
| ClusterPartitionMBean cp =
| (ClusterPartitionMBean) MBeanProxyExt.create(
| ClusterPartitionMBean.class,
| inst.getObjectName(),
| this.getServer());
| result = cp.getHAPartition();
| }
|
| if( result == null )
| {
| String msg = "Failed to find HAPartition with PartitionName="+name;
| throw new InstanceNotFoundException(msg);
| }
| return result;
| }
There's no general facility that lists all the deployed partitions; the JMX
query approach is what you have to do.
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