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package com.sun.enterprise.admin.monitor.stats.spi;
import java.lang.management.ManagementFactory;
import java.lang.management.OperatingSystemMXBean;
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.JVMOperatingSystemStats;
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.admin.monitor.stats.StatisticImpl;
import com.sun.enterprise.util.i18n.StringManager;
public class JVMOperatingSystemStatsImpl implements JVMOperatingSystemStats {
private GenericStatsImpl baseStatsImpl;
private static final String STATS_INTERFACE_NAME =
"com.sun.enterprise.admin.monitor.stats.JVMOperatingSystemStats";
private MBeanServer server;
private MutableCountStatistic availProcs;
private StringStatistic name;
private OperatingSystemMXBean bean;
final long initTime;
private static final StringManager localStrMgr =
StringManager.getManager(JVMOperatingSystemStatsImpl.class);
/** Creates a new instance of JVMOperatingSystemStatsImpl */
public JVMOperatingSystemStatsImpl () {
initTime = System.currentTimeMillis ();
try {
baseStatsImpl = new GenericStatsImpl(STATS_INTERFACE_NAME, this);
} catch(Exception e) {
}
// get an instance of the MBeanServer
// server = getPlatformMBeanServer();
bean = ManagementFactory.getOperatingSystemMXBean();
// 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_os"),
initTime,
System.currentTimeMillis());
}
public StringStatistic getArch () {
String arch = bean.getArch();
return new StringStatisticImpl(arch,
localStrMgr.getString("monitor.stats.arch_string"),
localStrMgr.getString("monitor.stats.string_units"),
localStrMgr.getString("monitor.stats.arch_of_os"),
initTime,
System.currentTimeMillis());
}
public CountStatistic getAvailableProcessors () {
long procs = bean.getAvailableProcessors();
availProcs.setCount (procs);
return (CountStatistic)availProcs.unmodifiableView ();
}
public StringStatistic getVersion () {
String version = bean.getVersion();
return new StringStatisticImpl(version,
localStrMgr.getString("monitor.stats.vers_string"),
localStrMgr.getString("monitor.stats.string_units"),
localStrMgr.getString("monitor.stats.vers_of_os"),
initTime,
System.currentTimeMillis());
}
/**
* 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 AvailableProcessors
CountStatistic c = new CountStatisticImpl(
localStrMgr.getString("monitor.stats.avail_procs"),
StatisticImpl.DEFAULT_UNIT,
localStrMgr.getString("monitor.stats.avail_procs_desc"));
availProcs = new MutableCountStatisticImpl(c);
}
}
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