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package com.sun.enterprise.admin.monitor.stats.spi;
import java.lang.management.ManagementFactory;
import java.lang.management.CompilationMXBean;
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.StringStatistic;
import com.sun.enterprise.admin.monitor.stats.JVMCompilationStats;
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.StringStatisticImpl;
import com.sun.enterprise.util.i18n.StringManager;
public class JVMCompilationStatsImpl implements JVMCompilationStats {
private GenericStatsImpl baseStatsImpl;
private static final String STATS_INTERFACE_NAME =
"com.sun.enterprise.admin.monitor.stats.JVMCompilationStats";
private MBeanServer server;
private MutableCountStatistic compileTime;
private StringStatistic name;
private CompilationMXBean bean;
final long initTime;
private static final StringManager localStrMgr =
StringManager.getManager(JVMCompilationStatsImpl.class);
/** Creates a new instance of JVMCompilationStatsImpl */
public JVMCompilationStatsImpl() {
initTime = System.currentTimeMillis ();
try {
baseStatsImpl = new GenericStatsImpl(STATS_INTERFACE_NAME, this);
} catch(Exception e) {
}
// get an instance of the MBeanServer
// server = getPlatformMBeanServer();
bean = ManagementFactory.getCompilationMXBean();
// initialize all the MutableStatistic Classes
initializeStatistics();
}
public StringStatistic getName() {
String name = bean.getName();
return new StringStatisticImpl(name,
localStrMgr.getString("monitor.stats.name_string"),
localStrMgr.getString("monitor.stats.string_units"),
localStrMgr.getString("monitor.stats.name_of_jit_compiler"),
initTime,
System.currentTimeMillis());
}
public CountStatistic getTotalCompilationTime() {
long cTime = bean.getTotalCompilationTime();
compileTime.setCount (cTime);
return (CountStatistic)compileTime.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();
}
private void initializeStatistics() {
// Initialize the MutableCountStatistic for TotalCompilationTime
CountStatistic c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.total_compilation_time"),
localStrMgr.getString("monitor.stats.milli_sec_units"),
localStrMgr.getString("monitor.stats.total_compilation_time_desc"));
compileTime = new MutableCountStatisticImpl(c);
}
}