Clover coverage report - ActiveIO - 1.0
Coverage timestamp: Fri Apr 22 2005 14:27:22 PDT
file stats: LOC: 175   Methods: 15
NCLOC: 94   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
AsynchToSynchChannelServerAdapter.java 64.3% 65% 66.7% 65.2%
coverage 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   
  **/
 18   
 package org.activeio.adapter;
 19   
 
 20   
 import java.io.IOException;
 21   
 import java.io.InterruptedIOException;
 22   
 import java.net.URI;
 23   
 
 24   
 import org.activeio.AcceptListener;
 25   
 import org.activeio.AsynchChannelServer;
 26   
 import org.activeio.Channel;
 27   
 import org.activeio.ChannelServer;
 28   
 import org.activeio.SynchChannelServer;
 29   
 
 30   
 import EDU.oswego.cs.dl.util.concurrent.LinkedQueue;
 31   
 
 32   
 /**
 33   
  * Adapts a {@see org.activeio.AsynchChannelServer} so that it provides an 
 34   
  * {@see org.activeio.SynchChannelServer} interface.  
 35   
  * 
 36   
  * This object buffers asynchronous accepts from the {@see org.activeio.AsynchChannelServer} 
 37   
  * abs buffers them in a {@see EDU.oswego.cs.dl.util.concurrent.Channel} util the client accepts the 
 38   
  * connection.
 39   
  * 
 40   
  * @version $Revision$
 41   
  */
 42   
 final public class AsynchToSynchChannelServerAdapter implements SynchChannelServer, AcceptListener {
 43   
 
 44   
     private final AsynchChannelServer asynchChannelServer;    
 45   
     private final EDU.oswego.cs.dl.util.concurrent.Channel acceptBuffer;
 46   
     
 47  62
     static public SynchChannelServer adapt(ChannelServer channel) {
 48  62
         return adapt(channel, new LinkedQueue());
 49   
     }
 50   
 
 51  62
     static public SynchChannelServer adapt(ChannelServer channel, EDU.oswego.cs.dl.util.concurrent.Channel upPacketChannel) {
 52   
 
 53   
         // It might not need adapting
 54  62
         if( channel instanceof SynchChannelServer ) {
 55  30
             return (SynchChannelServer) channel;
 56   
         }
 57   
 
 58   
         // Can we just just undo the adaptor
 59  32
         if( channel.getClass() == SynchToAsynchChannelAdapter.class ) {
 60  0
             return ((SynchToAsynchChannelServerAdapter)channel).getSynchChannelServer();
 61   
         }
 62   
         
 63  32
         return new AsynchToSynchChannelServerAdapter((AsynchChannelServer)channel, upPacketChannel);        
 64   
     }
 65   
     
 66   
     /**
 67   
      * @deprecated {@see #adapt(ChannelServer)}
 68   
      */
 69  0
     public AsynchToSynchChannelServerAdapter(AsynchChannelServer asynchChannelServer) {
 70  0
         this(asynchChannelServer,new LinkedQueue());
 71   
     }
 72   
     
 73   
     /**
 74   
      * @deprecated {@see #adapt(ChannelServer, EDU.oswego.cs.dl.util.concurrent.Channel)}
 75   
      */
 76  32
     public AsynchToSynchChannelServerAdapter(AsynchChannelServer asynchChannelServer, EDU.oswego.cs.dl.util.concurrent.Channel acceptBuffer) {
 77  32
         this.asynchChannelServer = asynchChannelServer;
 78  32
         this.acceptBuffer=acceptBuffer;
 79  32
         this.asynchChannelServer.setAcceptListener(this);
 80   
     }
 81   
 
 82   
     /**
 83   
      * @see org.activeio.SynchChannelServer#accept(long)
 84   
      */
 85  36
     public org.activeio.Channel accept(long timeout) throws IOException {
 86  36
         try {
 87   
             
 88  36
             Object o;
 89  36
             if( timeout == NO_WAIT_TIMEOUT ) {
 90  0
                 o = acceptBuffer.poll(0);
 91  36
             } else if( timeout == WAIT_FOREVER_TIMEOUT ) {
 92  8
                 o = acceptBuffer.take();            
 93   
             } else {
 94  28
                 o = acceptBuffer.poll(timeout);                        
 95   
             }
 96   
             
 97  24
             if( o == null )
 98  0
                 return null;
 99   
             
 100  24
             if( o instanceof Channel )
 101  24
                 return (Channel)o;
 102   
             
 103  0
             Throwable e = (Throwable)o;
 104  0
             throw (IOException)new IOException("Asynch error occured: "+e).initCause(e);
 105   
             
 106   
         } catch (InterruptedException e) {
 107  12
             throw new InterruptedIOException(e.getMessage());
 108   
         }
 109   
     }
 110   
     /**
 111   
      * @see org.activeio.Disposable#dispose()
 112   
      */
 113  32
     public void dispose() {
 114  32
         asynchChannelServer.dispose();
 115   
     }
 116   
 
 117   
     /**
 118   
      * @see org.activeio.Service#start()
 119   
      */
 120  32
     public void start() throws IOException {
 121  32
         asynchChannelServer.start();
 122   
     }
 123   
 
 124   
     /**
 125   
      * @see org.activeio.Service#stop(long)
 126   
      */
 127  0
     public void stop(long timeout) throws IOException {
 128  0
         asynchChannelServer.stop(timeout);
 129   
     }
 130   
 
 131  18
     public URI getBindURI() {
 132  18
         return asynchChannelServer.getBindURI();
 133   
     }
 134   
 
 135  50
     public URI getConnectURI() {
 136  50
         return asynchChannelServer.getConnectURI();
 137   
     }
 138   
 
 139   
     /**
 140   
      * @see org.activeio.AcceptListener#onAccept(org.activeio.Channel)
 141   
      */
 142  24
     public void onAccept(org.activeio.Channel channel) {
 143  24
         try {
 144  24
             acceptBuffer.put(channel);
 145   
         } catch (InterruptedException e) {
 146  0
             Thread.currentThread().interrupt();
 147   
         }        
 148   
     }
 149   
     
 150   
     /**
 151   
      * @see org.activeio.AcceptListener#onAcceptError(java.io.IOException)
 152   
      */
 153  0
     public void onAcceptError(IOException error) {
 154  0
         try {
 155  0
             acceptBuffer.put(error);
 156   
         } catch (InterruptedException e) {
 157  0
             Thread.currentThread().interrupt();
 158   
         }        
 159   
     }
 160   
     
 161  0
     public AsynchChannelServer getAsynchChannelServer() {
 162  0
         return asynchChannelServer;
 163   
     }
 164   
     
 165  2
     public Object narrow(Class target) {
 166  2
         if( target.isAssignableFrom(getClass()) ) {
 167  0
             return this;
 168   
         }
 169  2
         return asynchChannelServer.narrow(target);
 170   
     }    
 171   
     
 172  0
     public String toString() {
 173  0
         return asynchChannelServer.toString();
 174   
     }
 175   
 }