jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/ws/api/pipe/Engine.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.xml.internal.ws.api.pipe;

    28 import java.util.concurrent.Executor;

    29 import java.util.concurrent.Executors;

    30 import java.util.concurrent.ThreadFactory;

    31 import java.util.concurrent.atomic.AtomicInteger;

    33 import com.sun.xml.internal.ws.api.message.Packet;

    34 import com.sun.xml.internal.ws.api.server.Container;

    35 import com.sun.xml.internal.ws.api.server.ContainerResolver;

    37 /**

    38  * Collection of {@link Fiber}s.

    39  * Owns an {@link Executor} to run them.

    40  *

    41  * @author Kohsuke Kawaguchi

    42  * @author Jitendra Kotamraju

    43  */

    44 public class Engine {

    45     private volatile Executor threadPool;

    46     public final String id;

    47     private final Container container;

    49     String getId() { return id; }

    50     Container getContainer() { return container; }

    51     Executor getExecutor() { return threadPool; }

    53     public Engine(String id, Executor threadPool) {

    54         this(id, ContainerResolver.getDefault().getContainer(), threadPool);

    55     }

    57     public Engine(String id, Container container, Executor threadPool) {

    58         this(id, container);

    59         this.threadPool = threadPool != null ? wrap(threadPool) : null;

    60     }

    62     public Engine(String id) {

    63         this(id, ContainerResolver.getDefault().getContainer());

    64     }

    66     public Engine(String id, Container container) {

    67         this.id = id;

    68         this.container = container;

    69     }

    71     public void setExecutor(Executor threadPool) {

    72         this.threadPool = threadPool != null ? wrap(threadPool) : null;

    73     }

    75     void addRunnable(Fiber fiber) {

    76         if(threadPool==null) {

    77             synchronized(this) {

    78                 threadPool = wrap(Executors.newCachedThreadPool(new DaemonThreadFactory()));

    79             }

    80         }

    81         threadPool.execute(fiber);

    82     }

    84     private Executor wrap(Executor ex) {

    85         return ContainerResolver.getDefault().wrapExecutor(container, ex);

    86     }

    88     /**

    89      * Creates a new fiber in a suspended state.

    90      *

    91      * <p>

    92      * To start the returned fiber, call {@link Fiber#start(Tube,Packet,Fiber.CompletionCallback)}.

    93      * It will start executing the given {@link Tube} with the given {@link Packet}.

    94      *

    95      * @return new Fiber

    96      */

    97     public Fiber createFiber() {

    98         return new Fiber(this);

    99     }

   101     private static class DaemonThreadFactory implements ThreadFactory {

   102         static final AtomicInteger poolNumber = new AtomicInteger(1);

   103         final AtomicInteger threadNumber = new AtomicInteger(1);

   104         final String namePrefix;

   106         DaemonThreadFactory() {

   107             namePrefix = "jaxws-engine-" + poolNumber.getAndIncrement() + "-thread-";

   108         }

   110         public Thread newThread(Runnable r) {

   111             Thread t = new Thread(null, r, namePrefix + threadNumber.getAndIncrement(), 0);

   112             if (!t.isDaemon()) {

   113                 t.setDaemon(true);

   114             }

   115             if (t.getPriority() != Thread.NORM_PRIORITY) {

   116                 t.setPriority(Thread.NORM_PRIORITY);

   117             }

   118             return t;

   119         }

   120     }

   121 }

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