io.undertow.util.PipeliningExecutor Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.undertow.util;
import io.undertow.UndertowLogger;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.Executor;
/**
* Executor that will continue to re-run tasks in a loop that are submitted from its own thread.
*
* @author Stuart Douglas
*/
@Deprecated
public class PipeliningExecutor implements Executor {
private final Executor executor;
private static final ThreadLocal> THREAD_QUEUE = new ThreadLocal<>();
public PipeliningExecutor(Executor executor) {
this.executor = executor;
}
@Override
public void execute(final Runnable command) {
List queue = THREAD_QUEUE.get();
if (queue != null) {
queue.add(command);
} else {
executor.execute(new Runnable() {
@Override
public void run() {
LinkedList queue = THREAD_QUEUE.get();
if (queue == null) {
THREAD_QUEUE.set(queue = new LinkedList<>());
}
try {
command.run();
} catch (Throwable t) {
UndertowLogger.REQUEST_LOGGER.debugf(t, "Task %s failed", command);
}
Runnable runnable = queue.poll();
while (runnable != null) {
try {
runnable.run();
} catch (Throwable t) {
UndertowLogger.REQUEST_LOGGER.debugf(t, "Task %s failed", command);
}
runnable = queue.poll();
}
}
});
}
}
}