jmsnell     2002/12/03 20:33:33

  Modified:    java/src/org/apache/axis/ime/internal/util
                        NonPersistentKeyedBuffer.java
               java/src/org/apache/axis/ime/internal
                        MessageExchangeProvider.java
  Added:       java/src/org/apache/axis/components/threadpool
                        ThreadPool.java
  Removed:     java/src/org/apache/axis/ime/internal/util WorkerPool.java
  Log:
  Moved the thread pool impl that the IME base impl uses to 
  a new org.apache.axis.components.threadpool package. 
  This is a generally reusable piece of code.
  
  Revision  Changes    Path
  1.4       +3 -2      
xml-axis/java/src/org/apache/axis/ime/internal/util/NonPersistentKeyedBuffer.java
  
  Index: NonPersistentKeyedBuffer.java
  ===================================================================
  RCS file: 
/home/cvs/xml-axis/java/src/org/apache/axis/ime/internal/util/NonPersistentKeyedBuffer.java,v
  retrieving revision 1.3
  retrieving revision 1.4
  diff -u -r1.3 -r1.4
  --- NonPersistentKeyedBuffer.java     19 Nov 2002 20:42:26 -0000      1.3
  +++ NonPersistentKeyedBuffer.java     4 Dec 2002 04:33:33 -0000       1.4
  @@ -57,6 +57,7 @@
   
   import org.apache.axis.i18n.Messages;
   import org.apache.axis.components.logger.LogFactory;
  +import org.apache.axis.components.threadpool.ThreadPool;
   import org.apache.commons.logging.Log;
   
   import java.util.Vector;
  @@ -77,10 +78,10 @@
   
       private final KeyedQueue messages = new KeyedQueue();
   
  -    private WorkerPool WORKERS;
  +    private ThreadPool WORKERS;
   
       public NonPersistentKeyedBuffer(
  -            WorkerPool workers) {
  +            ThreadPool workers) {
           this.WORKERS = workers;
       }
   
  
  
  
  1.1                  
xml-axis/java/src/org/apache/axis/components/threadpool/ThreadPool.java
  
  Index: ThreadPool.java
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   *
   * Copyright (c) 2001 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 "Axis" 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 [EMAIL PROTECTED]
   *
   * 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.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  package org.apache.axis.components.threadpool;
  
  import org.apache.axis.i18n.Messages;
  import org.apache.axis.components.logger.LogFactory;
  import org.apache.commons.logging.Log;
  
  import java.util.Hashtable;
  import java.util.Iterator;
  import java.util.Map;
  
  /**
   * @author James M Snell ([EMAIL PROTECTED])
   */
  public class ThreadPool {
  
      protected static Log log =
          LogFactory.getLog(ThreadPool.class.getName());
  
      public static final long MAX_THREADS = 100;
      
      protected Map threads = new Hashtable();
      protected long threadcount;
      public boolean _shutdown;
  
      public void cleanup()
          throws InterruptedException {
          if (log.isDebugEnabled()) {
              log.debug("Enter: ThreadPool::cleanup");
          }
          if (!isShutdown()) {
            safeShutdown();
            awaitShutdown();
          }
          synchronized(this) {
            threads.clear();
            _shutdown = false;
          }
          if (log.isDebugEnabled()) {
              log.debug("Exit: ThreadPool::cleanup");
          }
      }
  
      /**
       * Returns true if all workers have been shutdown
       */
      public boolean isShutdown() {
          synchronized (this) {
              return _shutdown && threadcount == 0;
          }
      }
  
      /**
       * Returns true if all workers are in the process of shutting down
       */
      public boolean isShuttingDown() {
          synchronized (this) {
              return _shutdown;
          }
      }
  
      /**
       * Returns the total number of currently active workers
       */
      public long getWorkerCount() {
          synchronized (this) {
              return threadcount;
          }
      }
  
      /**
       * Adds a new worker to the pool
       */
      public void addWorker(
              Runnable worker) {
          if (log.isDebugEnabled()) {
              log.debug("Enter: ThreadPool::addWorker");
          }
          if (_shutdown ||
              threadcount == MAX_THREADS)
              throw new 
IllegalStateException(Messages.getMessage("illegalStateException00"));
          Thread thread = new Thread(worker);
          threads.put(worker, thread);
          threadcount++;
          thread.start();
          if (log.isDebugEnabled()) {
              log.debug("Exit: ThreadPool::addWorker");
          }
      }
  
      /**
       * Forcefully interrupt all workers
       */
      public void interruptAll() {
          if (log.isDebugEnabled()) {
              log.debug("Enter: ThreadPool::interruptAll");
          }
          synchronized (threads) {
              for (Iterator i = threads.values().iterator(); i.hasNext();) {
                  Thread t = (Thread) i.next();
                  t.interrupt();
              }
          }
          if (log.isDebugEnabled()) {
              log.debug("Exit: ThreadPool::interruptAll");
          }
      }
  
      /**
       * Forcefully shutdown the pool
       */
      public void shutdown() {
          if (log.isDebugEnabled()) {
              log.debug("Enter: ThreadPool::shutdown");
          }
          synchronized (this) {
              _shutdown = true;
          }
          interruptAll();
          if (log.isDebugEnabled()) {
              log.debug("Exit: ThreadPool::shutdown");
          }
      }
  
      /**
       * Forcefully shutdown the pool
       */
      public void safeShutdown() {
          if (log.isDebugEnabled()) {
              log.debug("Enter: ThreadPool::safeShutdown");
          }
          synchronized (this) {
              _shutdown = true;
          }
          if (log.isDebugEnabled()) {
              log.debug("Exit: ThreadPool::safeShutdown");
          }
      }
  
      /**
       * Await shutdown of the worker
       */
      public synchronized void awaitShutdown()
              throws InterruptedException {
          if (log.isDebugEnabled()) {
              log.debug("Enter: ThreadPool::awaitShutdown");
          }
          if (!_shutdown)
              throw new 
IllegalStateException(Messages.getMessage("illegalStateException00"));
          while (threadcount > 0)
              wait();
          if (log.isDebugEnabled()) {
              log.debug("Exit: ThreadPool::awaitShutdown");
          }
      }
  
      /**
       * Await shutdown of the worker
       */
      public synchronized boolean awaitShutdown(long timeout)
              throws InterruptedException {
          if (log.isDebugEnabled()) {
              log.debug("Enter: ThreadPool::awaitShutdown");
          }
          if (!_shutdown)
              throw new 
IllegalStateException(Messages.getMessage("illegalStateException00"));
          if (threadcount == 0) {
              if (log.isDebugEnabled()) {
                  log.debug("Exit: ThreadPool::awaitShutdown");
              }
              return true;
          }
          long waittime = timeout;
          if (waittime <= 0) {
              if (log.isDebugEnabled()) {
                  log.debug("Exit: ThreadPool::awaitShutdown");
              }
              return false;
          }
          long start = System.currentTimeMillis();
          for (; ;) {
              wait(waittime);
              if (threadcount == 0) {
                  if (log.isDebugEnabled()) {
                      log.debug("Exit: ThreadPool::awaitShutdown");
                  }
                  return true;
              }
              waittime = timeout - System.currentTimeMillis();
              if (waittime <= 0) {
                  if (log.isDebugEnabled()) {
                      log.debug("Exit: ThreadPool::awaitShutdown");
                  }
                  return false;
              }
          }
      }
  
      /**
       * Used by MessageWorkers to notify the pool that it is done
       */
      public void workerDone(
              Runnable worker, 
              boolean restart) {
          if (log.isDebugEnabled()) {
              log.debug("Enter: ThreadPool::workerDone");
          }
          synchronized(this) {
              threads.remove(worker);
              if (--threadcount == 0 && _shutdown) {
                  notifyAll();
              }
              if (!_shutdown && restart) {
                  addWorker(worker);
              }
          }
          if (log.isDebugEnabled()) {
              log.debug("Exit: ThreadPool::workerDone");
          }        
      }
  }
  
  
  
  
  1.11      +8 -8      
xml-axis/java/src/org/apache/axis/ime/internal/MessageExchangeProvider.java
  
  Index: MessageExchangeProvider.java
  ===================================================================
  RCS file: 
/home/cvs/xml-axis/java/src/org/apache/axis/ime/internal/MessageExchangeProvider.java,v
  retrieving revision 1.10
  retrieving revision 1.11
  diff -u -r1.10 -r1.11
  --- MessageExchangeProvider.java      19 Nov 2002 21:18:20 -0000      1.10
  +++ MessageExchangeProvider.java      4 Dec 2002 04:33:33 -0000       1.11
  @@ -64,10 +64,10 @@
   import org.apache.axis.ime.MessageExchangeCorrelator;
   import org.apache.axis.ime.MessageExchangeFactory;
   import org.apache.axis.ime.event.MessageSendEvent;
  -import org.apache.axis.ime.internal.util.WorkerPool;
   import org.apache.axis.ime.internal.util.KeyedBuffer;
   import org.apache.axis.ime.internal.util.NonPersistentKeyedBuffer;
   import org.apache.axis.components.logger.LogFactory;
  +import org.apache.axis.components.threadpool.ThreadPool;
   import org.apache.commons.logging.Log;
   
   import java.util.Map;
  @@ -85,7 +85,7 @@
       public static final long SELECT_TIMEOUT = 1000 * 30;
       public static final long DEFAULT_THREAD_COUNT = 5;
   
  -    protected final WorkerPool WORKERS = new WorkerPool();
  +    protected final ThreadPool WORKERS = new ThreadPool();
       protected final KeyedBuffer SEND = new NonPersistentKeyedBuffer(WORKERS);
       protected final KeyedBuffer RECEIVE = new NonPersistentKeyedBuffer(WORKERS);
       protected final KeyedBuffer RECEIVE_REQUESTS = new 
NonPersistentKeyedBuffer(WORKERS);
  @@ -237,13 +237,13 @@
           protected static Log log =
               LogFactory.getLog(MessageReceiver.class.getName());
           
  -        protected WorkerPool pool;
  +        protected ThreadPool pool;
           protected KeyedBuffer channel;
           protected ReceivedMessageDispatchPolicy policy;
           protected Handler handler;
       
           protected MessageReceiver(
  -                WorkerPool pool,
  +                ThreadPool pool,
                   KeyedBuffer channel,
                   ReceivedMessageDispatchPolicy policy,
                   Handler handler) {
  @@ -272,7 +272,7 @@
               } catch (Throwable t) {
                   log.error(Messages.getMessage("fault00"), t);
               } finally {
  -                pool.workerDone(this);
  +                pool.workerDone(this,true);
                   if (log.isDebugEnabled()) {
                       log.debug("Exit: MessageExchangeProvider.MesageReceiver::run");
                   }
  @@ -289,13 +289,13 @@
           protected static Log log =
               LogFactory.getLog(MessageReceiver.class.getName());
       
  -        protected WorkerPool pool;
  +        protected ThreadPool pool;
           protected KeyedBuffer channel;
           protected MessageExchangeEventListener listener;
           protected Handler handler;
       
           protected MessageSender(
  -                WorkerPool pool,
  +                ThreadPool pool,
                   KeyedBuffer channel,
                   MessageExchangeEventListener listener,
                   Handler handler) {
  @@ -329,7 +329,7 @@
               } catch (Throwable t) {
                   log.error(Messages.getMessage("fault00"), t);
               } finally {
  -                pool.workerDone(this);
  +                pool.workerDone(this,true);
                   if (log.isDebugEnabled()) {
                       log.debug("Exit: MessageExchangeProvider.MessageSender::run");
                   }
  
  
  


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