Coverage Report - com.sun.grizzly.filter.UDPReadFilter
 
Classes in this File Line Coverage Branch Coverage Complexity
UDPReadFilter
0 %
0/26
0 %
0/4
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.filter;
 40  
 
 41  
 import com.sun.grizzly.Context;
 42  
 import com.sun.grizzly.util.WorkerThread;
 43  
 import java.io.IOException;
 44  
 import java.net.SocketAddress;
 45  
 import java.nio.ByteBuffer;
 46  
 import java.nio.channels.DatagramChannel;
 47  
 import java.nio.channels.SelectionKey;
 48  
 
 49  
 /**
 50  
  * Simple ProtocolFilter implementation which read the available bytes
 51  
  * and delegate the processing to the next ProtocolFilter in the ProtocolChain.
 52  
  * If no bytes are available, no new ProtocolHandler will be a invoked and 
 53  
  * the connection (SelectionKey) will be cancelled.
 54  
  *
 55  
  * @deprecated The ReadFilter can be used for both TCP and UDP.  
 56  
  * @author Jeanfrancois Arcand
 57  
  */
 58  
 public class UDPReadFilter extends ReadFilter{
 59  
 
 60  
     
 61  
     public final static String UDP_SOCKETADDRESS = "socketAddress";
 62  
     
 63  
     
 64  0
     public UDPReadFilter(){
 65  0
     }
 66  
      
 67  
     /**
 68  
      * Read available bytes and delegate the processing of them to the next
 69  
      * ProtocolFilter in the ProtocolChain.
 70  
      * @return <tt>true</tt> if the next ProtocolFilter on the ProtocolChain
 71  
      *                       need to bve invoked.
 72  
      */
 73  
     @Override
 74  
     public boolean execute(Context ctx) throws IOException {
 75  0
         boolean result = true;
 76  0
         SocketAddress socketAddress = null;
 77  0
         DatagramChannel datagramChannel = null;
 78  0
         Exception exception = null;
 79  0
         SelectionKey key = ctx.getSelectionKey();
 80  0
         key.attach(null);
 81  
         
 82  0
         ByteBuffer byteBuffer = 
 83  
                 ((WorkerThread)Thread.currentThread()).getByteBuffer();
 84  
         try {
 85  0
             datagramChannel = (DatagramChannel)key.channel();
 86  0
             socketAddress = datagramChannel.receive(byteBuffer);   
 87  0
         } catch (IOException ex) {
 88  0
             exception = ex;
 89  0
             log("UDPReadFilter.execute",ex);
 90  0
         } catch (RuntimeException ex) {
 91  0
             exception = ex;    
 92  0
             log("UDPReadFilter.execute",ex);
 93  
         } finally {                               
 94  0
             if (exception != null){
 95  0
                 ctx.setAttribute(Context.THROWABLE,exception);
 96  0
                 result = false;
 97  0
             } else if (socketAddress == null){
 98  0
                 ctx.setKeyRegistrationState(
 99  
                         Context.KeyRegistrationState.REGISTER);    
 100  0
                 result = false;
 101  
             } else {
 102  0
                 ctx.setAttribute(UDP_SOCKETADDRESS,socketAddress);
 103  
             }
 104  0
         }       
 105  0
         return result;
 106  
     }
 107  
 }