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*
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* may not use this file except in compliance with the License. You can
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package org.glassfish.jersey.server.internal.monitoring.jmx;
import java.lang.management.ManagementFactory;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.management.JMException;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.ws.rs.ProcessingException;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.monitoring.ApplicationStatistics;
import org.glassfish.jersey.server.monitoring.MonitoringStatistics;
import org.glassfish.jersey.server.monitoring.MonitoringStatisticsListener;
import org.glassfish.jersey.server.monitoring.ResourceStatistics;
import com.google.common.collect.Maps;
/**
* The main exposer class of Jersey JMX MBeans. The class creates MBeans and contains methods that
* register and unregister MBeans.
*
* @author Miroslav Fuksa (miroslav.fuksa at oracle.com)
*/
public class MBeanExposer implements MonitoringStatisticsListener {
private static final String PROPERTY_SUBTYPE_GLOBAL = "Global";
static final String PROPERTY_EXECUTION_TIMES_REQUESTS = "RequestTimes";
static final String PROPERTY_EXECUTION_TIMES_METHODS = "MethodTimes";
// MBeans
private volatile ExecutionStatisticsDynamicBean requestMBean;
private volatile ResponseMXBeanImpl responseMXBean;
private volatile ResourcesMBeanGroup uriStatsGroup;
private volatile ResourcesMBeanGroup resourceClassStatsGroup;
private volatile ExceptionMapperMXBeanImpl exceptionMapperMXBean;
private final AtomicBoolean exposed = new AtomicBoolean(false);
private volatile String domain;
private static final Logger LOGGER = Logger.getLogger(MBeanExposer.class.getName());
private Map transformToStringKeys(Map, ResourceStatistics> stats) {
Map newMap = Maps.newHashMap();
for (Map.Entry, ResourceStatistics> entry : stats.entrySet()) {
newMap.put(entry.getKey().getName(), entry.getValue());
}
return newMap;
}
/**
* Register the MBean with the given postfix name.
*
* @param mbean MBean to be registered.
* @param namePostfix Postfix of the object name in the pattern ",[property]=[value]...". Example
* ",subType=Requests,details=Execution"
*/
void registerMBean(Object mbean, String namePostfix) {
final MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
final String name = domain + namePostfix;
try {
final ObjectName objectName = new ObjectName(name);
if (mBeanServer.isRegistered(objectName)) {
LOGGER.log(Level.WARNING,
LocalizationMessages.WARNING_MONITORING_MBEANS_BEAN_ALREADY_REGISTERED(objectName));
mBeanServer.unregisterMBean(objectName);
}
mBeanServer.registerMBean(mbean, objectName);
} catch (JMException e) {
throw new ProcessingException(LocalizationMessages.ERROR_MONITORING_MBEANS_REGISTRATION(name), e);
}
}
private void unregisterJerseyMBeans() {
final MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
try {
final Set names = mBeanServer.queryNames(new ObjectName(domain + ",*"), null);
for (ObjectName name : names) {
mBeanServer.unregisterMBean(name);
}
} catch (Exception e) {
throw new ProcessingException(LocalizationMessages.ERROR_MONITORING_MBEANS_UNREGISTRATION_DESTROY(), e);
}
}
@Override
public void onStatistics(MonitoringStatistics statistics) {
if (exposed.compareAndSet(false, true)) {
final String globalSubType = ",subType=" + PROPERTY_SUBTYPE_GLOBAL;
final ApplicationStatistics appStats = statistics.getApplicationStatistics();
String appName = appStats.getResourceConfig().getApplicationName();
if (appName == null) {
appName = "App_" + Integer.toHexString(appStats.getResourceConfig().hashCode());
}
domain = "org.glassfish.jersey:type=" + appName;
unregisterJerseyMBeans();
uriStatsGroup = new ResourcesMBeanGroup(statistics.getUriStatistics(), true, this, ",subType=Uris");
Map newMap = transformToStringKeys(statistics.getResourceClassStatistics());
resourceClassStatsGroup = new ResourcesMBeanGroup(newMap, false, this, ",subType=Resources");
responseMXBean = new ResponseMXBeanImpl();
registerMBean(responseMXBean, globalSubType + ",global=Responses");
requestMBean = new ExecutionStatisticsDynamicBean(statistics.getRequestStatistics(),
this, globalSubType, "AllRequestTimes");
exceptionMapperMXBean = new ExceptionMapperMXBeanImpl(statistics.getExceptionMapperStatistics(), this,
globalSubType);
new ApplicationMXBeanImpl(appStats, this, globalSubType);
}
if (statistics.getApplicationStatistics().getDestroyTime() != null) {
unregisterJerseyMBeans();
}
requestMBean.updateExecutionStatistics(statistics.getRequestStatistics());
uriStatsGroup.updateResourcesStatistics(statistics.getUriStatistics());
responseMXBean.updateResponseStatistics(statistics.getResponseStatistics());
exceptionMapperMXBean.updateExceptionMapperStatistics(statistics.getExceptionMapperStatistics());
this.resourceClassStatsGroup.updateResourcesStatistics(transformToStringKeys(statistics.getResourceClassStatistics()));
}
}