/*

  * 

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

  * 

  * Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved.

  * 

  * The contents of this file are subject to the terms of either the GNU

  * General Public License Version 2 only ("GPL") or the Common Development

  * and Distribution License("CDDL") (collectively, the "License").  You

  * may not use this file except in compliance with the License. You can obtain

  * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html

  * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific

  * language governing permissions and limitations under the License.

  * 

  * When distributing the software, include this License Header Notice in each

  * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.

  * Sun designates this particular file as subject to the "Classpath" exception

  * as provided by Sun in the GPL Version 2 section of the License file that

  * accompanied this code.  If applicable, add the following below the License

  * Header, with the fields enclosed by brackets [] replaced by your own

  * identifying information: "Portions Copyrighted [year]

  * [name of copyright owner]"

  * 

  * Contributor(s):

  * 

  * If you wish your version of this file to be governed by only the CDDL or

  * only the GPL Version 2, indicate your decision by adding "[Contributor]

  * elects to include this software in this distribution under the [CDDL or GPL

  * Version 2] license."  If you don't indicate a single choice of license, a

  * recipient has the option to distribute your version of this file under

  * either the CDDL, the GPL Version 2 or to extend the choice of license to

  * its licensees as provided above.  However, if you add GPL Version 2 code

  * and therefore, elected the GPL Version 2 license, then the option applies

  * only if the new code is made subject to such option by the copyright

  * holder.

  *

  */

 package com.sun.grizzly.connectioncache.client;

 import com.sun.grizzly.ConnectorHandler;

 import com.sun.grizzly.ConnectorHandlerPool;

 import com.sun.grizzly.ConnectorInstanceHandler;

 import com.sun.grizzly.Controller;

 import com.sun.grizzly.Controller.Protocol;

 import com.sun.grizzly.DefaultConnectorHandlerPool;

 import com.sun.grizzly.connectioncache.spi.transport.ConnectionCacheFactory;

 import com.sun.grizzly.connectioncache.spi.transport.ConnectionFinder;

 import com.sun.grizzly.connectioncache.spi.transport.OutboundConnectionCache;

 /**

  * <code>ConnectorInstanceHandler</code> which use a

  * <code>ConcurrentQueue</code> to pool <code>CacheableConnectorHandler</code>

  *

  * @author Alexey Stashok

  */

 public class CacheableConnectorHandlerPool implements 

         ConnectorHandlerPool<CacheableConnectorHandler> {

     private Controller controller;

     private ConnectorHandlerPool protocolConnectorHandlerPool;

     private ConnectorInstanceHandler<CacheableConnectorHandler> connectorInstanceHandler;

     private OutboundConnectionCache<ConnectorHandler> outboundConnectionCache;

     private ConnectionFinder<ConnectorHandler> connectionFinder;

     public CacheableConnectorHandlerPool(Controller controller, int highWaterMark,

             int numberToReclaim, int maxParallel) {

             this(controller, highWaterMark, numberToReclaim, maxParallel, null);

     }

     public CacheableConnectorHandlerPool(Controller controller, int highWaterMark,

             int numberToReclaim, int maxParallel, ConnectionFinder<ConnectorHandler> connectionFinder) {

         this.controller = controller;

         this.outboundConnectionCache = 

                 ConnectionCacheFactory.<ConnectorHandler>makeBlockingOutboundConnectionCache(

                 "Grizzly outbound connection cache", highWaterMark, 

                 numberToReclaim, maxParallel, Controller.logger());

         this.connectionFinder = connectionFinder;

         protocolConnectorHandlerPool = new DefaultConnectorHandlerPool(controller);

         connectorInstanceHandler = new CacheableConnectorInstanceHandler();

     }

     public CacheableConnectorHandler acquireConnectorHandler(Protocol protocol) {

         CacheableConnectorHandler connectorHandler = connectorInstanceHandler.acquire();

         connectorHandler.setProtocol(protocol);

         return connectorHandler;

     }

     public void releaseConnectorHandler(CacheableConnectorHandler connectorHandler) {

         connectorInstanceHandler.release(connectorHandler);

     }

     OutboundConnectionCache<ConnectorHandler> getOutboundConnectionCache() {

         return outboundConnectionCache;

     }

     ConnectionFinder getConnectionFinder() {

         return connectionFinder;

     }

     Controller getController() {

         return controller;

     }

     ConnectorHandlerPool getProtocolConnectorHandlerPool() {

         return protocolConnectorHandlerPool;

     }

     /**

      * Default <code>ConnectorInstanceHandler</code> which use a

      * <code>ConcurrentQueue</code> to pool {@link ConnectorHandler}

      */

     private class CacheableConnectorInstanceHandler extends

             ConnectorInstanceHandler.ConcurrentQueueConnectorInstanceHandler<CacheableConnectorHandler> {

         public CacheableConnectorHandler newInstance() {

             return new CacheableConnectorHandler(CacheableConnectorHandlerPool.this);

         }

     }

 }