| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, Lotus |
| * Development Corporation., http://www.lotus.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.xml.utils; |
| |
| /** |
| * A utility class that wraps the ThreadController, which is used |
| * by IncrementalSAXSource for the incremental building of DTM. |
| */ |
| public class ThreadControllerWrapper |
| { |
| |
| /** The ThreadController pool */ |
| static ThreadController m_tpool = new ThreadController(); |
| |
| /** |
| * Change the ThreadController that will be used to |
| * manage the transform threads. |
| * |
| * @param tp A ThreadController object |
| */ |
| public static void setThreadController(ThreadController tpool) |
| { |
| m_tpool = tpool; |
| } |
| |
| public static Thread runThread(Runnable runnable, int priority) |
| { |
| return m_tpool.run(runnable, priority); |
| } |
| |
| public static void waitThread(Thread worker, Runnable task) |
| throws InterruptedException |
| { |
| m_tpool.waitThread(worker, task); |
| } |
| |
| /** |
| * Thread controller utility class for incremental SAX source. Must |
| * be overriden with a derived class to support thread pooling. |
| * |
| * All thread-related stuff is in this class. |
| */ |
| public static class ThreadController |
| { |
| |
| /** |
| * Will get a thread from the pool, execute the task |
| * and return the thread to the pool. |
| * |
| * The return value is used only to wait for completion |
| * |
| * |
| * NEEDSDOC @param task |
| * @param priority if >0 the task will run with the given priority |
| * ( doesn't seem to be used in xalan, since it's allways the default ) |
| * @returns The thread that is running the task, can be used |
| * to wait for completion |
| * |
| * NEEDSDOC ($objectName$) @return |
| */ |
| public Thread run(Runnable task, int priority) |
| { |
| |
| Thread t = new Thread(task); |
| |
| t.start(); |
| |
| // if( priority > 0 ) |
| // t.setPriority( priority ); |
| return t; |
| } |
| |
| /** |
| * Wait until the task is completed on the worker |
| * thread. |
| * |
| * NEEDSDOC @param worker |
| * NEEDSDOC @param task |
| * |
| * @throws InterruptedException |
| */ |
| public void waitThread(Thread worker, Runnable task) |
| throws InterruptedException |
| { |
| |
| // This should wait until the transformThread is considered not alive. |
| worker.join(); |
| } |
| } |
| |
| } |