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package com.sun.enterprise.admin.monitor.registry.spi;
import java.util.List;
import java.util.Iterator;
import java.util.Collection;
import java.util.ArrayList;
import java.util.logging.Logger;
import java.util.logging.Level;
import java.lang.management.ManagementFactory;
import java.lang.management.GarbageCollectorMXBean;
import java.lang.management.ThreadMXBean;
import java.lang.management.ThreadInfo;
import com.sun.enterprise.admin.common.constant.AdminConstants;
import javax.management.j2ee.statistics.Stats;
import com.sun.enterprise.admin.monitor.stats.*;
import com.sun.enterprise.admin.monitor.registry.MonitoredObjectType;
import com.sun.enterprise.admin.monitor.registry.MonitoringLevel;
import com.sun.enterprise.admin.monitor.registry.MonitoringLevelListener;
import com.sun.enterprise.admin.monitor.registry.spi.MonitoringRegistrationHelper;
import com.sun.enterprise.admin.monitor.registry.MonitoringRegistrationException;
import com.sun.enterprise.admin.monitor.registry.StatsHolder;
import com.sun.enterprise.admin.monitor.registry.spi.StatsHolderImpl;
import com.sun.enterprise.admin.monitor.registry.spi.reconfig.MonitoringConfigurationHandler;
import com.sun.enterprise.admin.monitor.stats.spi.JVMCompilationStatsImpl;
import com.sun.enterprise.admin.monitor.stats.spi.JVMClassLoadingStatsImpl;
import com.sun.enterprise.admin.monitor.stats.spi.JVMRuntimeStatsImpl;
import com.sun.enterprise.admin.monitor.stats.spi.JVMOperatingSystemStatsImpl;
import com.sun.enterprise.admin.monitor.stats.spi.JVMGarbageCollectorStatsImpl;
import com.sun.enterprise.admin.monitor.stats.spi.JVMMemoryStatsImpl;
import com.sun.enterprise.admin.monitor.stats.spi.JVMThreadStatsImpl;
import com.sun.enterprise.admin.monitor.stats.spi.JVMThreadInfoStatsImpl;
/**
* Manager class responsible for registration/unregistration of all the
* JVM1.5 Stats. In addition, this class is responsible for handling the
* monitoring level change events pertaining to the JVM
*/
public class JVMMonitoringManager implements MonitoringLevelListener {
private static final Logger logger = Logger.getLogger(AdminConstants.kLoggerName);
private static final JVMMonitoringManager jmm = new JVMMonitoringManager();
private final int STACK_DEPTH = 5;
private final String THREAD_NODE_NAME = "thread";
/** Creates a new instance of JVMMonitoringManager */
private JVMMonitoringManager() {
}
public static JVMMonitoringManager getInstance() {
return jmm;
}
/**
* Method that handles the registration of all the
* stats for various subsystems of the JVM
*/
public void registerStats(StatsHolder rootNode) {
MonitoringLevel level = MonitoringConfigurationHandler.getLevel(MonitoredObjectType.JVM);
// check monitoring level of JVM before registering
if(level != MonitoringLevel.OFF) {
try {
registerJVMCompilationStats(rootNode);
registerJVMClassLoadingStats(rootNode);
registerJVMRuntimeStats(rootNode);
registerJVMOperatingSystemStats(rootNode);
registerJVMGarbageCollectorStats(rootNode);
registerJVMMemoryStats(rootNode);
registerJVMThreadStats(rootNode);
if(level == MonitoringLevel.HIGH)
registerJVMThreadInfoStats(rootNode);
} catch(MonitoringRegistrationException mre) {
if (logger.isLoggable(Level.FINEST)) {
logger.finest("MonitoringRegistrationException in the registration of JVM1.5 Stats: "+ mre.getLocalizedMessage());
}
} catch(Exception e) {
if (logger.isLoggable(Level.FINEST)) {
logger.finest("Exception in the registration of JVM 1.5 Stats: "+ e.getLocalizedMessage());
}
}
}
}
//All the register/unregister methods for various subsystems of
//the JVM
/*
* Register the JVMCompilationStats with the monitoring registry
* @param rootNode the root node of the monitoring hierarchy
* @throws MonitoringRegistrationException
*/
public void registerJVMCompilationStats(StatsHolder rootNode) throws
MonitoringRegistrationException {
final StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null): "jvm node is null";
StatsHolder childNode = jvmNode.addChild(MonitoredObjectType.JVM_COMPILATION.getTypeName(),
MonitoredObjectType.JVM_COMPILATION);
childNode.setStats(new JVMCompilationStatsImpl());
childNode.setStatsClass(com.sun.enterprise.admin.monitor.stats.JVMCompilationStats.class);
childNode.setDottedName(DottedNameFactory.getJVMCompilationDottedName());
childNode.setObjectName(MonitoringObjectNames.getJVMCompilationObjectName());
childNode.registerMBean();
}
/*
* Register the JVMCClassLoadingStats with the monitoring registry
* @param rootNode the root node of the monitoring hierarchy
* @throws MonitoringRegistrationException
*/
public void registerJVMClassLoadingStats(StatsHolder rootNode)
throws MonitoringRegistrationException {
final StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null): "jvm node is null";
StatsHolder childNode = jvmNode.addChild(MonitoredObjectType.JVM_CLASSLOADING.getTypeName(),
MonitoredObjectType.JVM_CLASSLOADING);
childNode.setStats(new JVMClassLoadingStatsImpl());
childNode.setStatsClass(com.sun.enterprise.admin.monitor.stats.JVMClassLoadingStats.class);
childNode.setDottedName(DottedNameFactory.getJVMClassLoadingDottedName());
childNode.setObjectName(MonitoringObjectNames.getJVMClassLoadingObjectName());
childNode.registerMBean();
}
/*
* Register the JVMRuntimeStats with the monitoring registry
* @param rootNode the root node of the monitoring hierarchy
* @throws MonitoringRegistrationException
*/
public void registerJVMRuntimeStats(StatsHolder rootNode) throws
MonitoringRegistrationException {
final StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null): "jvm node is null";
StatsHolder childNode = jvmNode.addChild(MonitoredObjectType.JVM_RUNTIME.getTypeName(),
MonitoredObjectType.JVM_RUNTIME);
childNode.setStats(new JVMRuntimeStatsImpl());
childNode.setStatsClass(com.sun.enterprise.admin.monitor.stats.JVMRuntimeStats.class);
childNode.setDottedName(DottedNameFactory.getJVMRuntimeDottedName());
childNode.setObjectName(MonitoringObjectNames.getJVMRuntimeObjectName());
childNode.registerMBean();
}
/*
* Register the JVMOperatingSystemStats with the monitoring registry
* @param rootNode the root node of the monitoring hierarchy
* @throws MonitoringRegistrationException
*/
public void registerJVMOperatingSystemStats(StatsHolder rootNode)
throws MonitoringRegistrationException {
final StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null): "jvm node is null";
StatsHolder childNode = jvmNode.addChild(MonitoredObjectType.JVM_OS.getTypeName(),
MonitoredObjectType.JVM_OS);
childNode.setStats(new JVMOperatingSystemStatsImpl());
childNode.setStatsClass(com.sun.enterprise.admin.monitor.stats.JVMOperatingSystemStats.class);
childNode.setDottedName(DottedNameFactory.getJVMOSDottedName());
childNode.setObjectName(MonitoringObjectNames.getJVMOSObjectName());
childNode.registerMBean();
}
/*
* Unregister the from the monitoring registry
* @param rootNode root node of the monitoring hierarchy
* @param includeThreadInfo boolean to indicate if the threadinfo stats
* have to unregistered
* @throws MonitoringRegistrationException
*/
public void unregisterStats(StatsHolder rootNode, boolean includeThreadInfo) throws
MonitoringRegistrationException {
StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null):"jvm node is null";
Collection c = new ArrayList();
c.addAll(jvmNode.getAllChildren());
Iterator iter = c.iterator();
while(iter.hasNext()) {
StatsHolder childNode = (StatsHolder)iter.next();
if(childNode.getType() == MonitoredObjectType.JVM_GCS) {
Collection c1 = new ArrayList();
c1.addAll(childNode.getAllChildren());
Iterator it = c1.iterator();
while(it.hasNext()) {
StatsHolder s = (StatsHolder)it.next();
s.unregisterMBean();
childNode.removeChild(s.getName());
}
}
if((childNode.getType() == MonitoredObjectType.JVM_THREAD) && includeThreadInfo) {
Collection c1 = new ArrayList();
c1.addAll(childNode.getAllChildren());
Iterator it = c1.iterator();
while(it.hasNext()) {
StatsHolder s = (StatsHolder)it.next();
s.unregisterMBean();
childNode.removeChild(s.getName());
}
}
childNode.unregisterMBean();
jvmNode.removeChild(childNode.getName());
}
}
/**
* Register the JVMGarbageCollectorStats with the monitoring registry
* @param rootNode the root node of the monitoring hierarchy
* @throws MonitoringRegistrationException
*/
public void registerJVMGarbageCollectorStats(StatsHolder rootNode) throws
MonitoringRegistrationException {
StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null):"jvm node is null";
// setup the parent node for all garbage collectors
StatsHolder gcsNode = jvmNode.addChild(MonitoredObjectType.JVM_GCS.getTypeName(),
MonitoredObjectType.JVM_GCS);
gcsNode.setDottedName(DottedNameFactory.getJVMGCSDottedName());
gcsNode.setObjectName(MonitoringObjectNames.getJVMGCSSObjectName());
gcsNode.registerMBean();
// now register stats for each garbage colelctor
List beanList = ManagementFactory.getGarbageCollectorMXBeans();
Iterator iter = beanList.iterator();
while(iter.hasNext()) {
GarbageCollectorMXBean bean = (GarbageCollectorMXBean) iter.next();
StatsHolder gcNode = gcsNode.addChild(bean.getName(), MonitoredObjectType.JVM_GC);
gcNode.setStats(new JVMGarbageCollectorStatsImpl(bean));
gcNode.setStatsClass(com.sun.enterprise.admin.monitor.stats.JVMGarbageCollectorStats.class);
gcNode.setDottedName(DottedNameFactory.getJVMGCDottedName(bean.getName()));
gcNode.setObjectName(MonitoringObjectNames.getJVMGCObjectName(bean.getName()));
gcNode.registerMBean();
}
}
/**
* Register the JVMMemoryStats with the monitoring registry
* @param rootNode the root node of the monitoring hierarchy
* @throws MonitoringRegistrationException
*/
public void registerJVMMemoryStats(StatsHolder rootNode)
throws MonitoringRegistrationException {
final StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null): "jvm node is null";
StatsHolder childNode = jvmNode.addChild(MonitoredObjectType.JVM_MEMORY.getTypeName(),
MonitoredObjectType.JVM_MEMORY);
childNode.setStats(new JVMMemoryStatsImpl());
childNode.setStatsClass(com.sun.enterprise.admin.monitor.stats.JVMMemoryStats.class);
childNode.setDottedName(DottedNameFactory.getJVMMemoryDottedName());
childNode.setObjectName(MonitoringObjectNames.getJVMMemoryObjectName());
childNode.registerMBean();
}
public void registerJVMThreadStats(StatsHolder rootNode)
throws MonitoringRegistrationException {
final StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null): "jvm node is null";
StatsHolder childNode = jvmNode.addChild(MonitoredObjectType.JVM_THREAD.getTypeName(),
MonitoredObjectType.JVM_THREAD);
childNode.setStats(new JVMThreadStatsImpl());
childNode.setStatsClass(com.sun.enterprise.admin.monitor.stats.JVMThreadStats.class);
childNode.setDottedName(DottedNameFactory.getJVMThreadDottedName());
childNode.setObjectName(MonitoringObjectNames.getJVMThreadObjectName());
childNode.registerMBean();
}
public void registerJVMThreadInfoStats(StatsHolder rootNode) throws
MonitoringRegistrationException {
final StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null): "jvm node is null";
final StatsHolder threadSystemNode = jvmNode.getChild(MonitoredObjectType.JVM_THREAD.getTypeName());
assert(threadSystemNode != null): "thread-system node is null";
ThreadMXBean bean = ManagementFactory.getThreadMXBean();
long ids[] = bean.getAllThreadIds();
for(int i=0; i < ids.length; i++) {
ThreadInfo info = bean.getThreadInfo(ids[i], STACK_DEPTH);
String threadName = THREAD_NODE_NAME + "-" + ids[i];
StatsHolder childNode = threadSystemNode.addChild(threadName, MonitoredObjectType.JVM_THREAD_INFO);
childNode.setStats(new JVMThreadInfoStatsImpl(info));
childNode.setStatsClass(com.sun.enterprise.admin.monitor.stats.JVMThreadInfoStats.class);
childNode.setDottedName(DottedNameFactory.getJVMThreadInfoDottedName(threadName));
childNode.setObjectName(MonitoringObjectNames.getJVMThreadInfoObjectName(threadName));
childNode.registerMBean();
}
}
public void unregisterJVMThreadInfoStats(StatsHolder rootNode) throws
MonitoringRegistrationException {
final StatsHolder jvmNode = rootNode.getChild(MonitoredObjectType.JVM.getTypeName());
assert(jvmNode != null): "jvm node is null";
final StatsHolder threadSystemNode = jvmNode.getChild(MonitoredObjectType.JVM_THREAD.getTypeName());
assert(threadSystemNode != null): "thread-system node is null";
Collection c = new ArrayList();
c.addAll(threadSystemNode.getAllChildren());
Iterator iter = c.iterator();
while(iter.hasNext()) {
StatsHolder s = (StatsHolder)iter.next();
s.unregisterMBean();
threadSystemNode.removeChild(s.getName());
}
}
private void registerAllStats(StatsHolder rootNode, boolean includeThreadInfo) {
try {
registerJVMCompilationStats(rootNode);
registerJVMClassLoadingStats(rootNode);
registerJVMRuntimeStats(rootNode);
registerJVMOperatingSystemStats(rootNode);
registerJVMGarbageCollectorStats(rootNode);
registerJVMMemoryStats(rootNode);
registerJVMThreadStats(rootNode);
if(includeThreadInfo)
registerJVMThreadInfoStats(rootNode);
} catch(MonitoringRegistrationException mre) {
logger.finest("MonitoringRegistrationException in the registration of JVM1.5 Stats: "+ mre.getLocalizedMessage());
} catch(Exception e) {
logger.finest("Exception in the registration of JVM 1.5 Stats: "+ e.getLocalizedMessage());
}
}
// Methods to handle the monitoringlevel changes
public void changeLevel (MonitoringLevel from,
MonitoringLevel to,
MonitoredObjectType type) {
logger.finest("changeLevel being invoked on the JVM");
final MonitoringRegistrationHelper registryImpl =
(MonitoringRegistrationHelper) MonitoringRegistrationHelper.getInstance();
StatsHolder root = registryImpl.getRootStatsHolder();
boolean includeThreadInfo = false;
if(to == MonitoringLevel.OFF) {
if(from == MonitoringLevel.HIGH)
includeThreadInfo = true;
try {
unregisterStats(root, includeThreadInfo);
} catch(MonitoringRegistrationException mre) {
logger.finest("MonitoringRegistrationException in the unregistration of JVM 1.5 Stats: "+ mre.getLocalizedMessage());
} catch(Exception e) {
logger.finest("Exception in the unregistration of JVM 1.5 Stats: "+ e.getLocalizedMessage());
}
}
if(from == MonitoringLevel.OFF) {
if(to == MonitoringLevel.HIGH)
includeThreadInfo = true;
registerAllStats(root, includeThreadInfo);
}
if(from == MonitoringLevel.LOW && to == MonitoringLevel.HIGH) {
try {
registerJVMThreadInfoStats(root);
} catch(MonitoringRegistrationException mre) {
logger.finest("MonitoringRegistrationException in the registration of JVM ThreadInfoStats: "+ mre.getLocalizedMessage());
} catch(Exception e) {
logger.finest("Exception in the registration of JVM ThreadInfo Stats: "+ e.getLocalizedMessage());
}
}
if(from == MonitoringLevel.HIGH && to == MonitoringLevel.LOW) {
try{
unregisterJVMThreadInfoStats(root);
} catch(MonitoringRegistrationException mre) {
logger.finest("MonitoringRegistrationException in the unregistration of JVM ThreadInfoStats: "+ mre.getLocalizedMessage());
} catch(Exception e) {
logger.finest("Exception in the unregistration of JVM ThreadInfo Stats: "+ e.getLocalizedMessage());
}
}
}
public void changeLevel (MonitoringLevel from,
MonitoringLevel to,
Stats handback) {
}
public void setLevel (MonitoringLevel level) {
}
}
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