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package com.sun.enterprise.admin.monitor.stats.spi;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.lang.management.MemoryUsage;
import javax.management.ObjectName;
import javax.management.MBeanServerFactory;
import javax.management.MBeanServer;
import javax.management.j2ee.statistics.Statistic;
import javax.management.j2ee.statistics.CountStatistic;
import com.sun.enterprise.admin.monitor.stats.MutableCountStatistic;
import com.sun.enterprise.admin.monitor.stats.MutableCountStatisticImpl;
import com.sun.enterprise.admin.monitor.stats.GenericStatsImpl;
import com.sun.enterprise.admin.monitor.stats.CountStatisticImpl;
import com.sun.enterprise.admin.monitor.stats.StatisticImpl;
import com.sun.enterprise.admin.monitor.stats.JVMMemoryStats;
import com.sun.enterprise.util.i18n.StringManager;
public class JVMMemoryStatsImpl implements JVMMemoryStats {
private GenericStatsImpl baseStatsImpl;
private static final String STATS_INTERFACE_NAME =
"com.sun.enterprise.admin.monitor.stats.JVMMemoryStats";
private MutableCountStatistic initHeapSize;
private MutableCountStatistic usedHeapSize;
private MutableCountStatistic maxHeapSize;
private MutableCountStatistic commitHeapSize;
private MutableCountStatistic initNonHeapSize;
private MutableCountStatistic maxNonHeapSize;
private MutableCountStatistic usedNonHeapSize;
private MutableCountStatistic commitNonHeapSize;
private MutableCountStatistic objPendingCount;
private MemoryUsage heapUsage;
private MemoryUsage nonheapUsage;
private MemoryMXBean bean;
private static final String BYTE_UNITS = "monitor.stats.byte_units";
private static final StringManager localStrMgr =
StringManager.getManager(JVMMemoryStatsImpl.class);
/** Creates a new instance of JVMMemoryStatsImpl */
public JVMMemoryStatsImpl() {
try {
baseStatsImpl = new GenericStatsImpl(STATS_INTERFACE_NAME, this);
} catch(Exception e) {
}
bean = ManagementFactory.getMemoryMXBean();
heapUsage = bean.getHeapMemoryUsage();
nonheapUsage = bean.getNonHeapMemoryUsage();
// initialize all the MutableStatistic Classes
initializeStatistics();
}
private void initializeStatistics() {
String bytes_str = localStrMgr.getString(BYTE_UNITS);
// Initialize the MutableCountStatistic for InitialHeapSize
CountStatistic c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.initial_heap_size"), bytes_str,
localStrMgr.getString("monitor.stats.initial_heap_size_desc"));
initHeapSize = new MutableCountStatisticImpl(c);
// Initialize the MutableCountStatistic for MaxHeapSize
c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.max_heap_size"), bytes_str,
localStrMgr.getString("monitor.stats.max_heap_size_desc"));
maxHeapSize = new MutableCountStatisticImpl(c);
// Initialize the MutableCountStatistic for UsedHeapSize
c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.used_heap_size"), bytes_str,
localStrMgr.getString("monitor.stats.used_heap_size_desc"));
usedHeapSize = new MutableCountStatisticImpl(c);
// Initialize the MutableCountStatistic for CommittedHeapSize
c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.committed_heap_size"), bytes_str,
localStrMgr.getString("monitor.stats.committed_heap_size_desc"));
commitHeapSize = new MutableCountStatisticImpl(c);
// Initialize the MutableCountStatistic for InitialNonHeapSize
c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.initial_non_heap_size"), bytes_str,
localStrMgr.getString("monitor.stats.initial_non_heap_size_desc"));
initNonHeapSize = new MutableCountStatisticImpl(c);
// Initialize the MutableCountStatistic for MaxNonHeapSize
c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.max_non_heap_size"),bytes_str,
localStrMgr.getString("monitor.stats.max_non_heap_size_desc"));
maxNonHeapSize = new MutableCountStatisticImpl(c);
// Initialize the MutableCountStatistic for UsedNonHeapSize
c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.used_non_heap_size") ,bytes_str,
localStrMgr.getString("monitor.stats.used_non_heap_size_desc"));
usedNonHeapSize = new MutableCountStatisticImpl(c);
// Initialize the MutableCountStatistic for CommittedNonHeapSize
c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.committed_non_heap_size"),
bytes_str,
localStrMgr.getString("monitor.stats.committed_non_heap_size_desc"));
commitNonHeapSize = new MutableCountStatisticImpl(c);
// Initialize the MutableCountStatistic for ObjectsPendingFinalization
c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.objs_pending_serialization"),
StatisticImpl.DEFAULT_UNIT,
localStrMgr.getString("monitor.stats.objs_pending_serialization_desc"));
objPendingCount = new MutableCountStatisticImpl(c);
}
public CountStatistic getCommittedHeapSize() {
commitHeapSize.setCount(heapUsage.getCommitted());
return (CountStatistic)commitHeapSize.unmodifiableView();
}
public CountStatistic getCommittedNonHeapSize() {
commitNonHeapSize.setCount(nonheapUsage.getCommitted());
return (CountStatistic)commitNonHeapSize.unmodifiableView();
}
public CountStatistic getInitHeapSize() {
initHeapSize.setCount(heapUsage.getInit());
return (CountStatistic)initHeapSize.unmodifiableView();
}
public CountStatistic getInitNonHeapSize() {
initNonHeapSize.setCount(nonheapUsage.getCommitted());
return (CountStatistic)initNonHeapSize.unmodifiableView();
}
public CountStatistic getMaxHeapSize() {
maxHeapSize.setCount(heapUsage.getMax());
return (CountStatistic)maxHeapSize.unmodifiableView();
}
public CountStatistic getMaxNonHeapSize() {
maxNonHeapSize.setCount(nonheapUsage.getInit());
return (CountStatistic)maxNonHeapSize.unmodifiableView();
}
public CountStatistic getObjectPendingFinalizationCount() {
objPendingCount.setCount(bean.getObjectPendingFinalizationCount());
return (CountStatistic)objPendingCount.unmodifiableView();
}
public CountStatistic getUsedHeapSize() {
usedHeapSize.setCount(heapUsage.getUsed());
return (CountStatistic)usedHeapSize.unmodifiableView();
}
public CountStatistic getUsedNonHeapSize() {
usedNonHeapSize.setCount(nonheapUsage.getUsed());
return (CountStatistic)usedNonHeapSize.unmodifiableView();
}
/**
* This method can be used to retrieve all the Statistics, exposed
* by this implementation of Stats
* @return Statistic[]
*/
public Statistic[] getStatistics() {
return baseStatsImpl.getStatistics();
}
/**
* queries for a Statistic by name.
* @return Statistic
*/
public Statistic getStatistic(String str) {
return baseStatsImpl.getStatistic(str);
}
/**
* returns an array of names of all the Statistics, that can be
* retrieved from this implementation of Stats
* @return String[]
*/
public String[] getStatisticNames() {
return baseStatsImpl.getStatisticNames();
}
}
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