Coverage Report - com.sun.grizzly.DefaultProtocolChainInstanceHandler
 
Classes in this File Line Coverage Branch Coverage Complexity
DefaultProtocolChainInstanceHandler
100 %
8/8
50 %
1/2
0
 
 1  
 /*
 2  
  * 
 3  
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 4  
  * 
 5  
  * Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved.
 6  
  * 
 7  
  * The contents of this file are subject to the terms of either the GNU
 8  
  * General Public License Version 2 only ("GPL") or the Common Development
 9  
  * and Distribution License("CDDL") (collectively, the "License").  You
 10  
  * may not use this file except in compliance with the License. You can obtain
 11  
  * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 12  
  * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 13  
  * language governing permissions and limitations under the License.
 14  
  * 
 15  
  * When distributing the software, include this License Header Notice in each
 16  
  * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 17  
  * Sun designates this particular file as subject to the "Classpath" exception
 18  
  * as provided by Sun in the GPL Version 2 section of the License file that
 19  
  * accompanied this code.  If applicable, add the following below the License
 20  
  * Header, with the fields enclosed by brackets [] replaced by your own
 21  
  * identifying information: "Portions Copyrighted [year]
 22  
  * [name of copyright owner]"
 23  
  * 
 24  
  * Contributor(s):
 25  
  * 
 26  
  * If you wish your version of this file to be governed by only the CDDL or
 27  
  * only the GPL Version 2, indicate your decision by adding "[Contributor]
 28  
  * elects to include this software in this distribution under the [CDDL or GPL
 29  
  * Version 2] license."  If you don't indicate a single choice of license, a
 30  
  * recipient has the option to distribute your version of this file under
 31  
  * either the CDDL, the GPL Version 2 or to extend the choice of license to
 32  
  * its licensees as provided above.  However, if you add GPL Version 2 code
 33  
  * and therefore, elected the GPL Version 2 license, then the option applies
 34  
  * only if the new code is made subject to such option by the copyright
 35  
  * holder.
 36  
  *
 37  
  */
 38  
 
 39  
 package com.sun.grizzly;
 40  
 
 41  
 import java.util.concurrent.ConcurrentLinkedQueue;
 42  
 
 43  
 /**
 44  
  * Default implementation of an ProtocolChainInstanceHandler. 
 45  
  * {@link ProtocolChain} are cached using a ConcurrentLinkedQueue. When
 46  
  * the queue becomes empty, a new instance of {@link ProtocolChain}
 47  
  * is created.
 48  
  *
 49  
  * @author Jeanfrancois Arcand
 50  
  */
 51  
 public class DefaultProtocolChainInstanceHandler 
 52  
             implements ProtocolChainInstanceHandler{
 53  
     
 54  
 
 55  
     /**
 56  
      * List used to cache instance of ProtocolChain.
 57  
      */
 58  
     protected ConcurrentLinkedQueue<ProtocolChain> protocolChains;
 59  
         
 60  
     
 61  123
     public DefaultProtocolChainInstanceHandler() {
 62  123
         protocolChains = new ConcurrentLinkedQueue<ProtocolChain>();      
 63  123
     }
 64  
 
 65  
     
 66  
     /**
 67  
      * Return a pooled instance of ProtocolChain. If the pool is empty,
 68  
      * a new instance of ProtocolChain will be returned.
 69  
      * @return <tt>ProtocolChain</tt>
 70  
      */
 71  
     public ProtocolChain poll() {
 72  30
         ProtocolChain protocolChain = protocolChains.poll();
 73  30
         if (protocolChain == null){
 74  30
             protocolChain = new DefaultProtocolChain();
 75  
         }
 76  30
         return protocolChain;       
 77  
     }
 78  
 
 79  
     
 80  
     /**
 81  
      * Offer (add) an instance of ProtocolChain to this instance pool.
 82  
      * @param protocolChain - <tt>ProtocolChain</tt> to offer / add to the pool
 83  
      * @return boolean, if <tt>ProtocolChain</tt> was successfully added 
 84  
      *          to the pool
 85  
      */
 86  
     public boolean offer(ProtocolChain protocolChain) {
 87  156180
         return protocolChains.offer(protocolChain);
 88  
     }
 89  
     
 90  
 }