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package com.sun.enterprise.v3.services.impl.monitor;
import com.sun.enterprise.v3.services.impl.monitor.stats.StatsProvider;
import com.sun.grizzly.http.StatsThreadPool;
import com.sun.grizzly.util.ThreadPoolConfig;
import com.sun.grizzly.util.ThreadPoolMonitoringProbe;
import java.util.Queue;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
/**
* Grizzly thread pool implementation that emits probe events.
*
* @author jluehe
* @author Alexey Stashok
*/
public class MonitorableThreadPool extends StatsThreadPool {
// ------------------------------------------------------------ Constructors
public MonitorableThreadPool(
GrizzlyMonitoring monitoring, String monitoringId,
String threadPoolName, int corePoolSize, int maximumPoolSize,
int maxTasksCount, long keepAliveTime, TimeUnit unit) {
super(new GrizzlyIntegrationThreadPoolConfig(
monitoringId,
monitoring,
threadPoolName,
corePoolSize,
maximumPoolSize,
null,
maxTasksCount,
keepAliveTime,
unit,
null,
Thread.NORM_PRIORITY));
if (monitoring != null) {
StatsProvider statsProvider =
monitoring.getThreadPoolStatsProvider(monitoringId);
if (statsProvider != null) {
statsProvider.setStatsObject(this);
}
statsProvider =
monitoring.getConnectionQueueStatsProvider(monitoringId);
if (statsProvider != null) {
statsProvider.setStatsObject(this);
}
ThreadPoolConfig config = getConfiguration();
// force related events to be fired though the values aren't
// changing.
config.setCorePoolSize(config.getCorePoolSize());
config.setMaxPoolSize(config.getMaxPoolSize());
config.setQueueLimit(config.getQueueLimit());
}
}
// ---------------------------------------------------------- Nested Classes
/**
* Custom {@link ThreadPoolConfig} to link V3 probe monitors into the
* Grizzly runtime.
*/
private static class GrizzlyIntegrationThreadPoolConfig extends ThreadPoolConfig {
private final String monitoringId;
private final GrizzlyMonitoring monitoring;
// -------------------------------------------------------- Constructors
public GrizzlyIntegrationThreadPoolConfig(String monitoringId,
GrizzlyMonitoring monitoring,
String poolName,
int corePoolSize,
int maxPoolSize,
Queue<Runnable> queue,
int queueLimit,
long keepAliveTime,
TimeUnit timeUnit,
ThreadFactory threadFactory,
int priority) {
super(poolName,
corePoolSize,
maxPoolSize,
queue,
queueLimit,
keepAliveTime,
timeUnit,
threadFactory,
priority,
null);
super.setMonitoringProbe(new GrizzlyIntegrationThreadPoolMonitoringProbe());
this.monitoringId = monitoringId;
this.monitoring = monitoring;
}
public GrizzlyIntegrationThreadPoolConfig(final ThreadPoolConfig cfg) {
super(cfg);
if (cfg instanceof GrizzlyIntegrationThreadPoolConfig) {
GrizzlyIntegrationThreadPoolConfig thatCasted = (GrizzlyIntegrationThreadPoolConfig) cfg;
monitoringId = thatCasted.monitoringId;
monitoring = thatCasted.monitoring;
} else {
monitoringId = null;
monitoring = null;
}
}
// --------------------------------------- Methods from ThreadPoolConfig
/**
* @see ThreadPoolConfig#setCorePoolSize(int)
*/
@Override public ThreadPoolConfig setCorePoolSize(int corePoolSize) {
if (monitoring != null) {
monitoring.getThreadPoolProbeProvider().setCoreThreadsEvent(
monitoringId, getPoolName(), corePoolSize);
}
return super.setCorePoolSize(corePoolSize);
}
/**
* @see ThreadPoolConfig#setMaxPoolSize(int)
*/
@Override public ThreadPoolConfig setMaxPoolSize(int maxPoolSize) {
if (monitoring != null) {
monitoring.getThreadPoolProbeProvider().setMaxThreadsEvent(
monitoringId, getPoolName(), maxPoolSize);
}
return super.setMaxPoolSize(maxPoolSize);
}
/**
* @see ThreadPoolConfig#setQueueLimit(int)
*/
@Override public ThreadPoolConfig setQueueLimit(int limit) {
if (monitoring != null) {
monitoring.getConnectionQueueProbeProvider().setMaxTaskQueueSizeEvent(
monitoringId, limit);
}
return super.setQueueLimit(limit);
}
@Override
public ThreadPoolConfig copy() {
return new GrizzlyIntegrationThreadPoolConfig(this);
}
// ------------------------------------------------------- Inner Classes
/**
* An implementation of {@link ThreadPoolMonitoringProbe} which delegates
* probe calls from the {@link com.sun.grizzly.util.GrizzlyExecutorService}
* to the provided {@link GrizzlyMonitoring} instance.
*/
private class GrizzlyIntegrationThreadPoolMonitoringProbe
implements ThreadPoolMonitoringProbe {
// ------------------------------ Methods from ThreadPoolMonitoringProbe
/**
* @see com.sun.grizzly.util.ThreadPoolMonitoringProbe#threadAllocatedEvent(String, Thread)
*/
@Override public void threadAllocatedEvent(String threadPoolName,
Thread thread) {
if (monitoring != null) {
monitoring.getThreadPoolProbeProvider()
.threadAllocatedEvent(monitoringId,
threadPoolName,
thread.getId());
}
}
/**
* @see com.sun.grizzly.util.ThreadPoolMonitoringProbe#threadAllocatedEvent(String, Thread)
*/
@Override public void threadReleasedEvent(String threadPoolName,
Thread thread) {
if (monitoring != null) {
monitoring.getThreadPoolProbeProvider()
.threadReleasedEvent(monitoringId,
threadPoolName,
thread.getId());
}
}
/**
* @see com.sun.grizzly.util.ThreadPoolMonitoringProbe#threadAllocatedEvent(String, Thread)
*/
@Override
public void maxNumberOfThreadsReachedEvent(String threadPoolName,
int maxNumberOfThreads) {
if (monitoring != null) {
monitoring.getThreadPoolProbeProvider()
.maxNumberOfThreadsReachedEvent(monitoringId,
threadPoolName,
maxNumberOfThreads);
}
}
/**
* @see com.sun.grizzly.util.ThreadPoolMonitoringProbe#threadAllocatedEvent(String, Thread)
*/
@Override public void onTaskQueuedEvent(Runnable runnable) {
if (monitoring != null) {
monitoring.getConnectionQueueProbeProvider()
.onTaskQueuedEvent(monitoringId,
String.valueOf(runnable.hashCode()));
}
}
/**
* @see com.sun.grizzly.util.ThreadPoolMonitoringProbe#threadAllocatedEvent(String, Thread)
*/
@Override public void onTaskDequeuedEvent(Runnable runnable) {
if (monitoring != null) {
monitoring.getConnectionQueueProbeProvider()
.onTaskDequeuedEvent(monitoringId,
String.valueOf(runnable.hashCode()));
monitoring.getThreadPoolProbeProvider()
.threadDispatchedFromPoolEvent(monitoringId,
getPoolName(),
Thread.currentThread().getId());
}
}
/**
* @see com.sun.grizzly.util.ThreadPoolMonitoringProbe#threadAllocatedEvent(String, Thread)
*/
@Override
public void onTaskQueueOverflowEvent(String threadPoolName) {
if (monitoring != null) {
monitoring.getConnectionQueueProbeProvider()
.onTaskQueueOverflowEvent(monitoringId);
}
}
/**
* @see ThreadPoolMonitoringProbe#onTaskCompletedEvent(Runnable)
*/
@Override public void onTaskCompletedEvent(Runnable runnable) {
if (monitoring != null) {
monitoring.getThreadPoolProbeProvider()
.threadReturnedToPoolEvent(monitoringId,
getPoolName(),
Thread.currentThread().getId());
}
}
} // END GrizzlyIntegrationThreadPoolMonitoringProbe
} // END GrizzlyIntegrationThreadPoolConfig
}