AMQ-3451: Statis default thread pools is @deprecated. Refactored some code to avoid using that. Otherwise it causes leaks in Tomcat when redeploying apps.

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@1381237 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Claus Ibsen 2012-09-05 16:28:58 +00:00
parent c30dd0c0ba
commit 0b01996efb
4 changed files with 28 additions and 26 deletions

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@ -70,7 +70,6 @@ import org.apache.activemq.command.ShutdownInfo;
import org.apache.activemq.command.WireFormatInfo;
import org.apache.activemq.filter.DestinationFilter;
import org.apache.activemq.filter.MessageEvaluationContext;
import org.apache.activemq.thread.DefaultThreadPools;
import org.apache.activemq.thread.TaskRunnerFactory;
import org.apache.activemq.transport.DefaultTransportListener;
import org.apache.activemq.transport.FutureResponse;
@ -93,7 +92,7 @@ import org.slf4j.LoggerFactory;
*/
public abstract class DemandForwardingBridgeSupport implements NetworkBridge, BrokerServiceAware {
private static final Logger LOG = LoggerFactory.getLogger(DemandForwardingBridgeSupport.class);
private final TaskRunnerFactory asyncTaskRunner = DefaultThreadPools.getDefaultTaskRunnerFactory();
private TaskRunnerFactory asyncTaskRunner;
protected static final String DURABLE_SUB_PREFIX = "NC-DS_";
protected final Transport localBroker;
protected final Transport remoteBroker;
@ -157,6 +156,9 @@ public abstract class DemandForwardingBridgeSupport implements NetworkBridge, Br
public void start() throws Exception {
if (started.compareAndSet(false, true)) {
asyncTaskRunner = new TaskRunnerFactory("ActiveMQ ForwardingBridge Task");
asyncTaskRunner.init();
localBroker.setTransportListener(new DefaultTransportListener() {
@Override
@ -374,6 +376,10 @@ public abstract class DemandForwardingBridgeSupport implements NetworkBridge, Br
startedLatch.countDown();
startedLatch.countDown();
localStartedLatch.countDown();
// stop task runner
asyncTaskRunner.shutdown();
asyncTaskRunner = null;
ss.throwFirstException();
}
}

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@ -16,35 +16,18 @@
*/
package org.apache.activemq.thread;
import java.util.concurrent.Executor;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadFactory;
/**
*
*
* @deprecated do not use this class. Instead use {@link TaskRunnerFactory}
*/
@Deprecated
public final class DefaultThreadPools {
// private static final Executor DEFAULT_POOL;
// static {
// DEFAULT_POOL = new ScheduledThreadPoolExecutor(5, new ThreadFactory() {
// public Thread newThread(Runnable runnable) {
// Thread thread = new Thread(runnable, "ActiveMQ Default Thread Pool Thread");
// thread.setDaemon(true);
// return thread;
// }
// });
// }
private static final TaskRunnerFactory DEFAULT_TASK_RUNNER_FACTORY = new TaskRunnerFactory();
private DefaultThreadPools() {
}
// public static Executor getDefaultPool() {
// return DEFAULT_POOL;
// }
@Deprecated
public static TaskRunnerFactory getDefaultTaskRunnerFactory() {
return DEFAULT_TASK_RUNNER_FACTORY;
}

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@ -49,7 +49,11 @@ public class TaskRunnerFactory implements Executor {
private RejectedExecutionHandler rejectedTaskHandler = null;
public TaskRunnerFactory() {
this("ActiveMQ Task", Thread.NORM_PRIORITY, true, 1000);
this("ActiveMQ Task");
}
public TaskRunnerFactory(String name) {
this(name, Thread.NORM_PRIORITY, true, 1000);
}
private TaskRunnerFactory(String name, int priority, boolean daemon, int maxIterationsPerRun) {
@ -98,7 +102,7 @@ public class TaskRunnerFactory implements Executor {
}
public void execute(Runnable runnable) {
execute(runnable, "ActiveMQ Task");
execute(runnable, name);
}
public void execute(Runnable runnable, String name) {

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@ -21,7 +21,7 @@ import java.net.URI;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.activemq.command.DiscoveryEvent;
import org.apache.activemq.thread.DefaultThreadPools;
import org.apache.activemq.thread.TaskRunnerFactory;
import org.apache.activemq.transport.discovery.DiscoveryAgent;
import org.apache.activemq.transport.discovery.DiscoveryListener;
import org.slf4j.Logger;
@ -46,6 +46,7 @@ public class SimpleDiscoveryAgent implements DiscoveryAgent {
private DiscoveryListener listener;
private String services[] = new String[] {};
private final AtomicBoolean running = new AtomicBoolean(false);
private TaskRunnerFactory taskRunner;
class SimpleDiscoveryEvent extends DiscoveryEvent {
@ -72,6 +73,9 @@ public class SimpleDiscoveryAgent implements DiscoveryAgent {
}
public void start() throws Exception {
taskRunner = new TaskRunnerFactory();
taskRunner.init();
running.set(true);
for (int i = 0; i < services.length; i++) {
listener.onServiceAdd(new SimpleDiscoveryEvent(services[i]));
@ -80,6 +84,11 @@ public class SimpleDiscoveryAgent implements DiscoveryAgent {
public void stop() throws Exception {
running.set(false);
taskRunner.shutdown();
// TODO: Should we not remove the services on the listener?
synchronized (sleepMutex) {
sleepMutex.notifyAll();
}
@ -110,7 +119,7 @@ public class SimpleDiscoveryAgent implements DiscoveryAgent {
if (event.failed.compareAndSet(false, true)) {
listener.onServiceRemove(event);
DefaultThreadPools.getDefaultTaskRunnerFactory().execute(new Runnable() {
taskRunner.execute(new Runnable() {
public void run() {
// We detect a failed connection attempt because the service