cvs commit: jakarta-avalon-phoenix/src/java/org/apache/phoenix/engine/facilities/thread DefaultThreadManager.java

[do...@apache.org]

donaldp     01/04/15 06:51:49

  Added:       src/java/org/apache/phoenix/engine/facilities/thread
                        DefaultThreadManager.java
  Log:
  Move ThreadManager facility implementation to own package.
  
  Revision  Changes    Path
  1.1                  jakarta-avalon-phoenix/src/java/org/apache/phoenix/engine/facilities/thread/DefaultThreadManager.java
  
  Index: DefaultThreadManager.java
  ===================================================================
  /*
   * Copyright (C) The Apache Software Foundation. All rights reserved.
   *
   * This software is published under the terms of the Apache Software License
   * version 1.1, a copy of which has been included with this distribution in
   * the LICENSE file.
   */
  package org.apache.phoenix.engine.facilities.thread;
  
  import java.util.Hashtable;
  import java.util.Iterator;
  import org.apache.avalon.AbstractLoggable;
  import org.apache.avalon.atlantis.Facility;
  import org.apache.avalon.configuration.Configurable;
  import org.apache.avalon.configuration.Configuration;
  import org.apache.avalon.configuration.ConfigurationException;
  import org.apache.avalon.util.thread.DefaultThreadPool;
  import org.apache.avalon.util.thread.ThreadPool;
  import org.apache.phoenix.engine.facilities.ThreadManager;
  
  /**
   *
   *
   * @author <a href="mailto:fede@apache.org">Federico Barbieri</a>
   * @author <a href="mailto:donaldp@apache.org">Peter Donald</a>
   */
  public class DefaultThreadManager
      extends AbstractLoggable
      implements Facility, ThreadManager, Configurable
  {
      protected final Hashtable       m_pools = new Hashtable();
  
      public void configure( final Configuration configuration )
          throws ConfigurationException
      {
          final Configuration[] groups = configuration.getChildren( "thread-group" );
          for( int i = 0; i < groups.length; i++ )
          {
              final Configuration group = groups[ i ];
  
              final String name = group.getChild( "name" ).getValue();
              final int priority = group.getChild( "priority" ).getValueAsInt( 5 );
              final boolean isDaemon = group.getChild( "is-daemon" ).getValueAsBoolean( false );
  
              final int minThreads = group.getChild( "min-threads" ).getValueAsInt( 5 );
              final int maxThreads = group.getChild( "max-threads" ).getValueAsInt( 10 );
              final int minSpareThreads = group.getChild( "min-spare-threads" ).
                  getValueAsInt( maxThreads - minThreads );
  
              try
              {
                  final DefaultThreadPool threadPool = new DefaultThreadPool( name, maxThreads );
                  threadPool.setDaemon( isDaemon );
                  setupLogger( threadPool );
                  m_pools.put( name, threadPool );
              }
              catch( final Exception e )
              {
                  throw new ConfigurationException( "Error creating thread pool " + name,
                                                    e );
              }
          }
      }
  
      public ThreadPool getDefaultThreadPool()
      {
          return getThreadPool( "default" );
      }
  
      public ThreadPool getThreadPool( final String name )
      {
          final ThreadPool threadPool = (ThreadPool)m_pools.get( name );
  
          if( null == threadPool )
          {
              //Should this be a ComponentNotFoundException ????
              throw new IllegalArgumentException( "No such thread group " + name );
          }
  
          return threadPool;
      }
  }
  
  
  

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