SlxObjectPool.java

/*
 * Copyright 2012 The Solmix Project
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.gnu.org/licenses/ 
 * or see the FSF site: http://www.fsf.org. 
 */

package org.solmix.fmk.pool;

import java.util.Map;

import org.apache.commons.pool.impl.GenericObjectPool;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.solmix.api.pool.SlxPoolableObjectFactory;
import org.solmix.commons.collections.DataTypeMap;

/**
 * @author solmix.f@gmail.com
 * @version 110035
 */
public class SlxObjectPool extends GenericObjectPool
{

   private static final Logger log =  LoggerFactory.getLogger( SlxObjectPool.class );

   private final SlxPoolableObjectFactory objectFactory;

   public SlxObjectPool( SlxPoolableObjectFactory factory )
   {
      super( factory );
      this.objectFactory = factory;
   }

   /**
    * @return the objectFactory
    */
   public SlxPoolableObjectFactory getObjectFactory()
   {
      return objectFactory;
   }

   public SlxObjectPool( SlxPoolableObjectFactory factory, Map thisConfig )
   {
      super( factory );
      this.objectFactory = factory;
      String whenExhaustedAction = (String) thisConfig.remove( "whenExhaustedAction" );
      Byte action = null;
      if ( whenExhaustedAction != null )
      {
         whenExhaustedAction = whenExhaustedAction.toLowerCase();
         if ( "grow".equals( whenExhaustedAction ) )
            action = new Byte( (byte) 2 );
         if ( "block".equals( whenExhaustedAction ) )
            action = new Byte( (byte) 1 );
         if ( "fail".equals( whenExhaustedAction ) )
            action = new Byte( (byte) 0 );
      }
      if ( action != null )
         thisConfig.put( "whenExhaustedAction", action );
      else
         log.error( ( new StringBuilder() ).append( "Ignoring unknown value: " ).append( whenExhaustedAction ).append( " for whenExhaustedAction." ).append(
            " Valid values are: grow, block, fail." ).toString() );
      try
      {
         DataTypeMap data = new DataTypeMap( thisConfig );
         Config config = new Config();
         if ( thisConfig.get( "maxActive" ) != null )
            config.maxActive = data.getInt( "maxActive", 8 );
         if ( thisConfig.get( "lifo" ) != null )
            config.lifo = data.getBoolean( "lifo", true );
         if ( thisConfig.get( "maxIdle" ) != null )
            config.maxIdle = data.getInt( "maxIdle", 8 );
         if ( thisConfig.get( "softMinEvictableIdleTimeMillis" ) != null )
            config.softMinEvictableIdleTimeMillis = data.getLong( "softMinEvictableIdleTimeMillis", 2000 );
         if ( thisConfig.get( "maxWait" ) != null )
            config.maxWait = data.getLong( "maxWait", 12000 );
         if ( thisConfig.get( "minEvictableIdleTimeMillis" ) != null )
            config.minEvictableIdleTimeMillis = data.getLong( "minEvictableIdleTimeMillis", 500 );
         if ( thisConfig.get( "minIdle" ) != null )
            config.minIdle = data.getInt( "minIdle", 0 );
         if ( thisConfig.get( "numTestsPerEvictionRun" ) != null )
            config.numTestsPerEvictionRun = data.getInt( "numTestsPerEvictionRun", 1 );
         if ( thisConfig.get( "testOnBorrow" ) != null )
            config.testOnBorrow = data.getBoolean( "testOnBorrow", true );
         if ( thisConfig.get( "testOnReturn" ) != null )
            config.testOnReturn = data.getBoolean( "testOnReturn", false );
         if ( thisConfig.get( "testWhileIdle" ) != null )
            config.testWhileIdle = data.getBoolean( "testWhileIdle", false );
         if ( thisConfig.get( "timeBetweenEvictionRunsMillis" ) != null )
            config.timeBetweenEvictionRunsMillis = data.getLong( "timeBetweenEvictionRunsMillis", 2000 );
         if ( thisConfig.get( "timeBetweenEvictionRunsMillis" ) != null )
            config.whenExhaustedAction = data.getByte( "whenExhaustedAction", (byte) 2 );
         this.setConfig( config );
      } catch ( Exception e )
      {
         log.warn( "Problem setting requested config parameters on pool.", e );
      }
   }

}