Getting PMI metrics using wsadmin

Get a PyJavaInstance ref to the thing you want to check (In this case a JVM)

jvmO = AdminControl.makeObjectName(

    AdminControl.queryNames('type=JVM,J2EEServer=BobServerA,*'))

Check it's of type jclass org.python.core.PyJavaInstance

type(jvmO)

Now get it's PerfMBean Object

perfO =  AdminControl.makeObjectName(

    AdminControl.queryNames('type=Perf,process=BobServerA,*'))

Now run getStatObject

jvmStatsO = AdminControl.invoke_jmx(

    perfO, 

    'getStatsObject', 

    [ jvmO, java.lang.Boolean('false') ],

    [ 'javax.management.ObjectName', 'java.lang.Boolean' ]

)

Now run the getStatistic method on jvmStatsO to get stats

jvmStatsO.getStatistic('HeapSize').getCurrent()

To work out what other methods you can call either of the following

jvmStatsO.getClass().getMethods()

jvmStatsO.getStatistic('HeapSize').getClass().getMethods()