001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common Development
008: * and Distribution License("CDDL") (collectively, the "License"). You
009: * may not use this file except in compliance with the License. You can obtain
010: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
011: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
012: * language governing permissions and limitations under the License.
013: *
014: * When distributing the software, include this License Header Notice in each
015: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
016: * Sun designates this particular file as subject to the "Classpath" exception
017: * as provided by Sun in the GPL Version 2 section of the License file that
018: * accompanied this code. If applicable, add the following below the License
019: * Header, with the fields enclosed by brackets [] replaced by your own
020: * identifying information: "Portions Copyrighted [year]
021: * [name of copyright owner]"
022: *
023: * Contributor(s):
024: *
025: * If you wish your version of this file to be governed by only the CDDL or
026: * only the GPL Version 2, indicate your decision by adding "[Contributor]
027: * elects to include this software in this distribution under the [CDDL or GPL
028: * Version 2] license." If you don't indicate a single choice of license, a
029: * recipient has the option to distribute your version of this file under
030: * either the CDDL, the GPL Version 2 or to extend the choice of license to
031: * its licensees as provided above. However, if you add GPL Version 2 code
032: * and therefore, elected the GPL Version 2 license, then the option applies
033: * only if the new code is made subject to such option by the copyright
034: * holder.
035: */
036:
037: package com.sun.xml.ws.api.pipe;
038:
039: import java.util.concurrent.Executor;
040: import java.util.concurrent.Executors;
041: import java.util.concurrent.ThreadFactory;
042: import java.util.concurrent.atomic.AtomicInteger;
043:
044: import com.sun.xml.ws.api.message.Packet;
045:
046: /**
047: * Collection of {@link Fiber}s.
048: * Owns an {@link Executor} to run them.
049: *
050: * @author Kohsuke Kawaguchi
051: * @author Jitendra Kotamraju
052: */
053: public class Engine {
054: private volatile Executor threadPool;
055: public final String id;
056:
057: public Engine(String id, Executor threadPool) {
058: this (id);
059: this .threadPool = threadPool;
060: }
061:
062: public Engine(String id) {
063: this .id = id;
064: }
065:
066: public void setExecutor(Executor threadPool) {
067: this .threadPool = threadPool;
068: }
069:
070: void addRunnable(Fiber fiber) {
071: if (threadPool == null) {
072: synchronized (this ) {
073: threadPool = Executors.newFixedThreadPool(5,
074: new DaemonThreadFactory());
075: }
076: }
077: threadPool.execute(fiber);
078: }
079:
080: /**
081: * Creates a new fiber in a suspended state.
082: *
083: * <p>
084: * To start the returned fiber, call {@link Fiber#start(Tube,Packet,Fiber.CompletionCallback)}.
085: * It will start executing the given {@link Tube} with the given {@link Packet}.
086: *
087: * @return new Fiber
088: */
089: public Fiber createFiber() {
090: return new Fiber(this );
091: }
092:
093: private static class DaemonThreadFactory implements ThreadFactory {
094: private final AtomicInteger threadNumber = new AtomicInteger(1);
095:
096: public Thread newThread(Runnable r) {
097: Thread daemonThread = new Thread(r, "JAXWS-Engine-"
098: + threadNumber.getAndIncrement());
099: daemonThread.setDaemon(Boolean.TRUE);
100: return daemonThread;
101: }
102: }
103: }
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