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package org.glassfish.admin.monitor.jvm;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import org.glassfish.external.statistics.CountStatistic;
import org.glassfish.external.statistics.impl.CountStatisticImpl;
import org.glassfish.gmbal.AMXMetadata;
import org.glassfish.gmbal.Description;
import org.glassfish.gmbal.ManagedAttribute;
import org.glassfish.gmbal.ManagedObject;
/* jvm.memory */
// v2 mbean: com.sun.appserv:name=memory,type=memory,category=monitor,server=server
// v3 mbean:
@AMXMetadata(type="memory-mon", group="monitoring")
@ManagedObject
@Description( "JVM Memory Statistics" )
public class JVMMemoryStatsProvider {
private MemoryMXBean memBean = ManagementFactory.getMemoryMXBean();
private CountStatisticImpl committedHeap = new CountStatisticImpl(
"CommittedHeapSize", "bytes",
"Amount of memory in bytes that is committed for the Java virtual machine to use" );
private CountStatisticImpl initHeap = new CountStatisticImpl(
"InitialHeapSize", "bytes",
"Amount of memory in bytes that the Java virtual machine initially requests from the operating system for memory management" );
private CountStatisticImpl maxHeap = new CountStatisticImpl(
"MaxHeapSize", "bytes",
"Maximum amount of memory in bytes that can be used for memory management" );
private CountStatisticImpl usedHeap = new CountStatisticImpl(
"UsedHeapSize", "bytes",
"Amount of used memory in bytes" );
private CountStatisticImpl committedNonHeap = new CountStatisticImpl(
"CommittedNonHeapSize", "bytes",
"Amount of memory in bytes that is committed for the Java virtual machine to use" );
private CountStatisticImpl initNonHeap = new CountStatisticImpl(
"InitialNonHeapSize", "bytes",
"Amount of memory in bytes that the Java virtual machine initially requests from the operating system for memory management" );
private CountStatisticImpl maxNonHeap = new CountStatisticImpl(
"MaxNonHeapSize", "bytes",
"Maximum amount of memory in bytes that can be used for memory management" );
private CountStatisticImpl usedNonHeap = new CountStatisticImpl(
"UsedNonHeapSize", "bytes",
"Amount of used memory in bytes" );
private CountStatisticImpl objectPendingFinalizationCount = new CountStatisticImpl(
"ObjectsPendingFinalization", CountStatisticImpl.UNIT_COUNT,
"Approximate number of objects for which finalization is pending" );
@ManagedAttribute(id="committedheapsize-count")
@Description( "amount of memory in bytes that is committed for the Java virtual machine to use" )
public CountStatistic getCommittedHeap() {
committedHeap.setCount(memBean.getHeapMemoryUsage().getCommitted());
return committedHeap;
}
@ManagedAttribute(id="initheapsize-count")
@Description( "amount of memory in bytes that the Java virtual machine initially requests from the operating system for memory management" )
public CountStatistic getInitHeap() {
initHeap.setCount(memBean.getHeapMemoryUsage().getInit());
return initHeap;
}
@ManagedAttribute(id="maxheapsize-count")
@Description( "maximum amount of memory in bytes that can be used for memory management" )
public CountStatistic getMaxHeap() {
maxHeap.setCount(memBean.getHeapMemoryUsage().getMax());
return maxHeap;
}
@ManagedAttribute(id="usedheapsize-count")
@Description( "amount of used memory in bytes" )
public CountStatistic getUsedHeap() {
usedHeap.setCount(memBean.getHeapMemoryUsage().getUsed());
return usedHeap;
}
@ManagedAttribute(id="committednonheapsize-count")
@Description( "amount of memory in bytes that is committed for the Java virtual machine to use" )
public CountStatistic getCommittedNonHeap() {
committedNonHeap.setCount(memBean.getNonHeapMemoryUsage().getCommitted());
return committedNonHeap;
}
@ManagedAttribute(id="initnonheapsize-count")
@Description( "amount of memory in bytes that the Java virtual machine initially requests from the operating system for memory management" )
public CountStatistic getInitNonHeap() {
initNonHeap.setCount(memBean.getNonHeapMemoryUsage().getInit());
return initNonHeap;
}
@ManagedAttribute(id="maxnonheapsize-count")
@Description( "maximum amount of memory in bytes that can be used for memory management" )
public CountStatistic getMaxNonHeap() {
maxNonHeap.setCount(memBean.getNonHeapMemoryUsage().getMax());
return maxNonHeap;
}
@ManagedAttribute(id="usednonheapsize-count")
@Description( "amount of used memory in bytes" )
public CountStatistic getUsedNonHeap() {
usedNonHeap.setCount(memBean.getNonHeapMemoryUsage().getUsed());
return usedNonHeap;
}
@ManagedAttribute(id="objectpendingfinalizationcount-count")
@Description( "approximate number of objects for which finalization is pending" )
public CountStatistic getObjectPendingFinalizationCount() {
objectPendingFinalizationCount.setCount(memBean.getObjectPendingFinalizationCount());
return objectPendingFinalizationCount;
}
}