List of usage examples for javax.management NotificationListener NotificationListener
NotificationListener
From source file:org.jboss.resteasy.test.response.ResponseStreamPrematurelyClosedTest.java
@Test public void testStream() throws Exception { Builder builder = client.target(generateURL("/test/document/abc/content")).request(); try (MyByteArrayOutputStream baos = new MyByteArrayOutputStream()) { if (!TestUtil.isIbmJdk()) { //builder.get().readEntity explicitly on the same line below and not saved in any temp variable //to let the JVM try finalizing the ClientResponse object InputStream ins = builder.get().readEntity(InputStream.class); //suggest jvm to do gc and wait the gc notification final CountDownLatch coutDown = new CountDownLatch(1); List<GarbageCollectorMXBean> gcbeans = ManagementFactory.getGarbageCollectorMXBeans(); NotificationListener listener = new NotificationListener() { public void handleNotification(Notification notification, Object handback) { coutDown.countDown(); }/*from w ww . ja va2 s. co m*/ }; try { for (GarbageCollectorMXBean gcbean : gcbeans) { NotificationEmitter emitter = (NotificationEmitter) gcbean; emitter.addNotificationListener(listener, null, null); } System.gc(); coutDown.await(10, TimeUnit.SECONDS); IOUtils.copy(ins, baos); Assert.assertEquals("Received string: " + baos.toShortString(), 10000000, baos.size()); } finally { //remove the listener for (GarbageCollectorMXBean gcbean : gcbeans) { ((NotificationEmitter) gcbean).removeNotificationListener(listener); } } } else { // workaround for Ibm jdk - doesn't allow to use NotificationEmitter with GarbageCollectorMXBean //builder.get().readEntity explicitly on the same line below and not saved in any temp variable //to let the JVM try finalizing the ClientResponse object IOUtils.copy(builder.get().readEntity(InputStream.class), baos); Assert.assertEquals(100000000, baos.size()); } } }
From source file:net.centro.rtb.monitoringcenter.metrics.system.jvm.GarbageCollectorMetricSet.java
GarbageCollectorMetricSet() {
this.garbageCollectorMXBeans = ManagementFactory.getGarbageCollectorMXBeans();
this.minorGcTimer = new Timer();
this.majorGcTimer = new Timer();
// Determine the location of the gc log file (note that there's not support for rolling gc logs)
String gcLogFilePath = null;//from w ww . j a v a2 s. com
RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
List<String> inputArguments = runtimeMXBean.getInputArguments();
for (String argument : inputArguments) {
if (argument.startsWith(LOG_GC_JVM_PARAM)) {
gcLogFilePath = argument.substring(LOG_GC_JVM_PARAM.length());
break;
}
}
if (gcLogFilePath != null && !gcLogFilePath.trim().isEmpty()) {
final File gcLogFile = new File(gcLogFilePath);
if (gcLogFile.exists()) {
this.fullCollectionsCounter = new AtomicLong();
this.gcLogTailer = Tailer.create(gcLogFile, new TailerListenerAdapter() {
@Override
public void handle(String line) {
if (line != null && line.contains(FULL_GC_LOG_STRING)) {
fullCollectionsCounter.incrementAndGet();
}
}
}, GC_LOG_FILE_TAIL_DELAY_IN_MILLIS);
}
}
// Attach a listener to the GarbageCollectorMXBeans
this.gcEventListener = new NotificationListener() {
@Override
public void handleNotification(Notification notification, Object handback) {
String notificationType = notification.getType();
if (notificationType.equals(GarbageCollectionNotificationInfo.GARBAGE_COLLECTION_NOTIFICATION)) {
CompositeData compositeData = CompositeData.class.cast(notification.getUserData());
GarbageCollectionNotificationInfo gcNotificationInfo = GarbageCollectionNotificationInfo
.from(compositeData);
if (GC_NOTIFICATION_MINOR_GC_ACTION_STRING.equals(gcNotificationInfo.getGcAction())) {
minorGcTimer.update(gcNotificationInfo.getGcInfo().getDuration(), TimeUnit.MILLISECONDS);
} else if (GC_NOTIFICATION_MAJOR_GC_ACTION_STRING.equals(gcNotificationInfo.getGcAction())) {
majorGcTimer.update(gcNotificationInfo.getGcInfo().getDuration(), TimeUnit.MILLISECONDS);
}
}
}
};
for (final GarbageCollectorMXBean garbageCollectorMXBean : garbageCollectorMXBeans) {
if (NotificationEmitter.class.isInstance(garbageCollectorMXBean)) {
NotificationEmitter emitter = NotificationEmitter.class.cast(garbageCollectorMXBean);
emitter.addNotificationListener(gcEventListener, null, null);
}
}
// Set up metrics
Map<String, Metric> metricsByNames = new HashMap<>();
if (fullCollectionsCounter != null) {
this.fullCollectionsGauge = new Gauge<Long>() {
@Override
public Long getValue() {
return fullCollectionsCounter.get();
}
};
metricsByNames.put("fullCollections", fullCollectionsGauge);
}
metricsByNames.put("majorGcTimer", majorGcTimer);
metricsByNames.put("minorGcTimer", minorGcTimer);
List<GarbageCollectorStatus> garbageCollectorStatuses = new ArrayList<>();
for (final GarbageCollectorMXBean garbageCollectorMXBean : garbageCollectorMXBeans) {
final String garbageCollectorName = garbageCollectorMXBean.getName();
final String garbageCollectorNamespace = MetricNamingUtil.join("collectors",
MetricNamingUtil.sanitize(garbageCollectorName));
final Gauge<Long> collectionsGauge;
if (garbageCollectorMXBean.getCollectionCount() >= 0) {
collectionsGauge = new Gauge<Long>() {
@Override
public Long getValue() {
return garbageCollectorMXBean.getCollectionCount();
}
};
metricsByNames.put(MetricNamingUtil.join(garbageCollectorNamespace, "collections"),
collectionsGauge);
} else {
collectionsGauge = null;
}
final Gauge<Long> totalCollectionDurationInMillisGauge;
if (garbageCollectorMXBean.getCollectionTime() >= 0) {
totalCollectionDurationInMillisGauge = new Gauge<Long>() {
@Override
public Long getValue() {
return garbageCollectorMXBean.getCollectionTime();
}
};
metricsByNames.put(
MetricNamingUtil.join(garbageCollectorNamespace, "totalCollectionDurationInMillis"),
totalCollectionDurationInMillisGauge);
} else {
totalCollectionDurationInMillisGauge = null;
}
garbageCollectorStatuses.add(new GarbageCollectorStatus() {
@Override
public String getName() {
return garbageCollectorName;
}
@Override
public Gauge<Long> getCollectionsGauge() {
return collectionsGauge;
}
@Override
public Gauge<Long> getTotalCollectionDurationInMillisGauge() {
return totalCollectionDurationInMillisGauge;
}
});
}
this.garbageCollectorStatuses = garbageCollectorStatuses;
this.metricsByNames = metricsByNames;
}
From source file:io.fabric8.spi.process.AbstractProcessHandler.java
@Override public final Future<ManagedProcess> start() { State state = managedProcess.getState(); assertNotDestroyed(state);/*from ww w . ja va2s .c om*/ // Setup a call back notification to get the JMX connection of the started process final CountDownLatch latch = new CountDownLatch(1); String jmxAgentServiceURL = managedProcess .getAttribute(ContainerAttributes.ATTRIBUTE_KEY_AGENT_JMX_SERVER_URL); String jmxAgentUsername = managedProcess.getAttribute(ContainerAttributes.ATTRIBUTE_KEY_AGENT_JMX_USERNAME); String jmxAgentPassword = managedProcess.getAttribute(ContainerAttributes.ATTRIBUTE_KEY_AGENT_JMX_PASSWORD); JMXConnector connector = ManagementUtils.getJMXConnector(jmxAgentServiceURL, jmxAgentUsername, jmxAgentPassword, 200, TimeUnit.MILLISECONDS); try { final MBeanServerConnection server = connector.getMBeanServerConnection(); server.addNotificationListener(Agent.OBJECT_NAME, new NotificationListener() { @Override public void handleNotification(Notification notification, Object handback) { String eventType = notification.getType(); if (NOTIFICATION_TYPE_AGENT_REGISTRATION.equals(eventType)) { AgentRegistration agentReg = (AgentRegistration) notification.getSource(); String agentName = agentReg.getIdentity().getName(); String procName = (String) handback; if (agentName.equals(procName)) { try { server.removeNotificationListener(Agent.OBJECT_NAME, this); } catch (Exception ex) { // ignore } latch.countDown(); } } } }, null, managedProcess.getIdentity().getName()); } catch (RuntimeException rte) { throw rte; } catch (Exception ex) { throw new IllegalStateException(ex); } finally { IOUtils.safeClose(connector); } try { if (state == State.CREATED || state == State.STOPPED) { doStart(managedProcess); IllegalStateAssertion.assertNotNull(process, "No process created"); managedProcess.setState(State.STARTED); } } catch (Exception ex) { throw new LifecycleException("Cannot start container", ex); } return new ProcessFuture(managedProcess); //, latch); }
From source file:org.apache.giraph.graph.GraphTaskManager.java
/** * Install GC monitoring. This method intercepts all GC, log the gc, and * notifies an out-of-core engine (if any is used) about the GC. *//*ww w . j a v a 2 s. co m*/ private void installGCMonitoring() { List<GarbageCollectorMXBean> mxBeans = ManagementFactory.getGarbageCollectorMXBeans(); final OutOfCoreEngine oocEngine = serviceWorker.getServerData().getOocEngine(); for (GarbageCollectorMXBean gcBean : mxBeans) { NotificationEmitter emitter = (NotificationEmitter) gcBean; NotificationListener listener = new NotificationListener() { @Override public void handleNotification(Notification notification, Object handle) { if (notification.getType() .equals(GarbageCollectionNotificationInfo.GARBAGE_COLLECTION_NOTIFICATION)) { GarbageCollectionNotificationInfo info = GarbageCollectionNotificationInfo .from((CompositeData) notification.getUserData()); if (LOG.isInfoEnabled()) { LOG.info("installGCMonitoring: name = " + info.getGcName() + ", action = " + info.getGcAction() + ", cause = " + info.getGcCause() + ", duration = " + info.getGcInfo().getDuration() + "ms"); } gcTimeMetric.inc(info.getGcInfo().getDuration()); if (oocEngine != null) { oocEngine.gcCompleted(info); } } } }; //Add the listener emitter.addNotificationListener(listener, null, null); } }
From source file:org.apache.geode.admin.jmx.internal.MBeanUtil.java
static void registerServerNotificationListener() { if (mbeanServer == null) { return;/* www .j a va 2 s . c o m*/ } try { // the MBeanServerDelegate name is spec'ed as the following... ObjectName delegate = ObjectName.getInstance("JMImplementation:type=MBeanServerDelegate"); mbeanServer.addNotificationListener(delegate, new NotificationListener() { public void handleNotification(Notification notification, Object handback) { MBeanServerNotification serverNotification = (MBeanServerNotification) notification; if (MBeanServerNotification.UNREGISTRATION_NOTIFICATION.equals(serverNotification.getType())) { ObjectName objectName = serverNotification.getMBeanName(); synchronized (MBeanUtil.managedResources) { Object entry = MBeanUtil.managedResources.get(objectName); if (entry == null) return; if (!(entry instanceof ManagedResource)) { throw new ClassCastException(LocalizedStrings.MBeanUtil_0_IS_NOT_A_MANAGEDRESOURCE .toLocalizedString(new Object[] { entry.getClass().getName() })); } ManagedResource resource = (ManagedResource) entry; { // call cleanup on managedResource cleanupResource(resource); } } } } }, null, null); } catch (JMException e) { logStackTrace(Level.WARN, e, LocalizedStrings.MBeanUtil_FAILED_TO_REGISTER_SERVERNOTIFICATIONLISTENER.toLocalizedString()); } catch (JMRuntimeException e) { logStackTrace(Level.WARN, e, LocalizedStrings.MBeanUtil_FAILED_TO_REGISTER_SERVERNOTIFICATIONLISTENER.toLocalizedString()); } }
From source file:com.heliosapm.script.AbstractDeployedScript.java
/** * Finds the ObjectName of the configuration MBean to watch * @return the ObjectName of the configuration MBean to watch *//*from www. ja v a 2 s.c om*/ protected ObjectName findWatchedConfiguration() { /* * if extension != config * look for {shortName}.config * if not found * look for {pwd}.config (error if not found) * listen for registration of a future {shortName}.config * when notified: * stop listening on {pwd}.config and listen on {shortName}.config * * else (we are a config) * if(shortName != {pwd}) * look for {pwd}.config * else (we are the {pwd}.config * look for {pwd.parent}.config (error if not found) */ final Hashtable<String, String> keyAttrs = new Hashtable<String, String>(objectName.getKeyPropertyList()); final String pwd = sourceFile.getParentFile().getName(); if (!"config".equals(extension)) { // look for {shortName}.config keyAttrs.put("extension", "config"); ObjectName watchedObjectName = JMXHelper.objectName(CONFIG_DOMAIN, keyAttrs); if (JMXHelper.isRegistered(watchedObjectName)) { return watchedObjectName; } // nope. register a listener in case he shows up, then look for {pwd}.config final NotificationListener lateComerListener = new NotificationListener() { @Override public void handleNotification(Notification notification, Object handback) { } }; JMXHelper.addMBeanRegistrationListener(watchedObjectName, lateComerListener, 1); keyAttrs.put("name", pwd); watchedObjectName = JMXHelper.objectName(CONFIG_DOMAIN, keyAttrs); if (JMXHelper.isRegistered(watchedObjectName)) { return watchedObjectName; } log.warn("Failed to find expected dir watched configuration \n\tfor [" + objectName + "] \n\tat ObjectName [" + watchedObjectName + "]"); throw new RuntimeException("Failed to find expected dir watched configuration for [" + objectName + "] at ObjectName [" + watchedObjectName + "]"); } // we're a config if (!shortName.equals(pwd)) { // we're a script config, so look for {pwd}.config keyAttrs.put("name", pwd); ObjectName watchedObjectName = JMXHelper.objectName(CONFIG_DOMAIN, keyAttrs); if (JMXHelper.isRegistered(watchedObjectName)) { return watchedObjectName; } log.warn("Failed to find expected dir watched configuration \n\tfor [" + objectName + "] \n\tat ObjectName [" + watchedObjectName + "]"); return null; //throw new RuntimeException("Failed to find expected dir watched configuration for [" + objectName + "] at ObjectName [" + watchedObjectName + "]"); } // we're a {pwd}.connfig, so we need to find {pwd.parent}.config // yank the highest d# attribute so we go up one dir Integer high = JMXHelper.getHighestKey(objectName, "d"); if (high == null) { return null; } keyAttrs.remove("d" + JMXHelper.getHighestKey(objectName, "d")); if (this.rootDir.equals(sourceFile.getParentFile().getParentFile().getAbsolutePath())) { return null; } // update the name to the {pwd.parent} keyAttrs.put("name", sourceFile.getParentFile().getParentFile().getName()); ObjectName watchedObjectName = JMXHelper.objectName(CONFIG_DOMAIN, keyAttrs); if (JMXHelper.isRegistered(watchedObjectName)) { return watchedObjectName; } log.warn("Failed to find expected parent dir watched configuration \n\tfor [" + objectName + "] \n\tat ObjectName [" + watchedObjectName + "]"); throw new RuntimeException("Failed to find expected parent dir watched configuration for [" + objectName + "] at ObjectName [" + watchedObjectName + "]"); }