Clover coverage report - ActiveIO - 1.0
Coverage timestamp: Fri Apr 22 2005 14:27:22 PDT
file stats: LOC: 98   Methods: 9
NCLOC: 57   Classes: 1
30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover
 
 Source file Conditionals Statements Methods TOTAL
SynchornizedAsynchChannel.java - 0% 0% 0%
coverage
 1   
 /**
 2   
  *
 3   
  * Copyright 2004 Hiram Chirino
 4   
  *
 5   
  *  Licensed under the Apache License, Version 2.0 (the "License");
 6   
  *  you may not use this file except in compliance with the License.
 7   
  *  You may obtain a copy of the License at
 8   
  *
 9   
  *     http://www.apache.org/licenses/LICENSE-2.0
 10   
  *
 11   
  *  Unless required by applicable law or agreed to in writing, software
 12   
  *  distributed under the License is distributed on an "AS IS" BASIS,
 13   
  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14   
  *  See the License for the specific language governing permissions and
 15   
  *  limitations under the License.
 16   
  */
 17   
 package org.activeio.filter;
 18   
 
 19   
 import java.io.IOException;
 20   
 import java.io.InterruptedIOException;
 21   
 
 22   
 import org.activeio.AsynchChannel;
 23   
 import org.activeio.FilterAsynchChannel;
 24   
 import org.activeio.Packet;
 25   
 
 26   
 import EDU.oswego.cs.dl.util.concurrent.Mutex;
 27   
 import EDU.oswego.cs.dl.util.concurrent.Sync;
 28   
 
 29   
 /**
 30   
  * Used to synchronize concurrent access to an ASynchChannel.  
 31   
  * 
 32   
  * Uses a {@see EDU.oswego.cs.dl.util.concurrent.Sync} object
 33   
  * for write operations.  All other operations such as {@see #stop(long)}
 34   
  * and {@see #stop} just do a normal java synchronization against the SynchornizedSynchChannel
 35   
  * object instance.  It is assumed that the Async message delivery is not 
 36   
  * concurrent and therefore does not require synchronization.
 37   
  * 
 38   
  */
 39   
 public class SynchornizedAsynchChannel extends FilterAsynchChannel {
 40   
 
 41   
     private final Sync writeLock;
 42   
 
 43  0
     public SynchornizedAsynchChannel(AsynchChannel next) {
 44  0
         this(next, new Mutex());
 45   
     }
 46   
     
 47  0
     public SynchornizedAsynchChannel(AsynchChannel next, Sync writeLock) {
 48  0
         super(next);
 49  0
         this.writeLock = writeLock;
 50   
     }    
 51   
     
 52  0
     public void write(Packet packet) throws IOException {
 53  0
         try {                        
 54  0
             writeLock.acquire();
 55   
         } catch (InterruptedException e) {
 56  0
             throw new InterruptedIOException(e.getMessage());
 57   
         }
 58  0
         try {
 59  0
             getNext().write(packet);            
 60   
         } finally {
 61  0
             writeLock.release();
 62   
         }
 63   
     }
 64   
     
 65  0
     public void flush() throws IOException {
 66  0
         try {                        
 67  0
             writeLock.acquire();
 68   
         } catch (InterruptedException e) {
 69  0
             throw new InterruptedIOException(e.getMessage());
 70   
         }
 71  0
         try {
 72  0
             getNext().flush();            
 73   
         } finally {
 74  0
             writeLock.release();
 75   
         }
 76   
     }
 77   
 
 78  0
     synchronized public void dispose() {
 79  0
         super.dispose();
 80   
     }
 81   
 
 82  0
     synchronized public Object narrow(Class target) {
 83  0
         return super.narrow(target);
 84   
     }
 85   
 
 86  0
     synchronized public void start() throws IOException {
 87  0
         super.start();
 88   
     }
 89   
 
 90  0
     synchronized public void stop(long timeout) throws IOException {
 91  0
         super.stop(timeout);
 92   
     }
 93   
     
 94  0
     public Sync getWriteLock() {
 95  0
         return writeLock;
 96   
     }
 97   
 }
 98