com.sun.xml.ws.api.pipe.Engine Maven / Gradle / Ivy
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/*
* Copyright (c) 1997, 2022 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.ws.api.pipe;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
import com.sun.xml.ws.api.message.Packet;
import com.sun.xml.ws.api.server.Container;
import com.sun.xml.ws.api.server.ContainerResolver;
/**
* Collection of {@link Fiber}s.
* Owns an {@link Executor} to run them.
*
* @author Kohsuke Kawaguchi
* @author Jitendra Kotamraju
*/
public class Engine {
private volatile Executor threadPool;
public final String id;
private final Container container;
String getId() { return id; }
Container getContainer() { return container; }
Executor getExecutor() { return threadPool; }
public Engine(String id, Executor threadPool) {
this(id, ContainerResolver.getDefault().getContainer(), threadPool);
}
public Engine(String id, Container container, Executor threadPool) {
this(id, container);
this.threadPool = threadPool != null ? wrap(threadPool) : null;
}
public Engine(String id) {
this(id, ContainerResolver.getDefault().getContainer());
}
public Engine(String id, Container container) {
this.id = id;
this.container = container;
}
public void setExecutor(Executor threadPool) {
this.threadPool = threadPool != null ? wrap(threadPool) : null;
}
void addRunnable(Fiber fiber) {
if(threadPool==null) {
synchronized(this) {
threadPool = wrap(Executors.newCachedThreadPool(new DaemonThreadFactory()));
}
}
threadPool.execute(fiber);
}
private Executor wrap(Executor ex) {
return ContainerResolver.getDefault().wrapExecutor(container, ex);
}
/**
* Creates a new fiber in a suspended state.
*
*
* To start the returned fiber, call {@link Fiber#start(Tube,Packet,Fiber.CompletionCallback)}.
* It will start executing the given {@link Tube} with the given {@link Packet}.
*
* @return new Fiber
*/
public Fiber createFiber() {
return new Fiber(this);
}
private static class DaemonThreadFactory implements ThreadFactory {
static final AtomicInteger poolNumber = new AtomicInteger(1);
final AtomicInteger threadNumber = new AtomicInteger(1);
final String namePrefix;
DaemonThreadFactory() {
namePrefix = "jaxws-engine-" + poolNumber.getAndIncrement() + "-thread-";
}
@Override
public Thread newThread(Runnable r) {
Thread t = ThreadHelper.createNewThread(r);
t.setName(namePrefix + threadNumber.getAndIncrement());
if (!t.isDaemon()) {
t.setDaemon(true);
}
if (t.getPriority() != Thread.NORM_PRIORITY) {
t.setPriority(Thread.NORM_PRIORITY);
}
return t;
}
}
}