Clover coverage report - ActiveIO - 1.0
Coverage timestamp: Fri Apr 22 2005 14:27:22 PDT
file stats: LOC: 115   Methods: 7
NCLOC: 64   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
SynchChannelInputStream.java 50% 53.8% 57.1% 53.2%
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   
 package org.activeio.adapter;
 18   
 
 19   
 import java.io.IOException;
 20   
 import java.io.InputStream;
 21   
 
 22   
 import org.activeio.Channel;
 23   
 import org.activeio.Packet;
 24   
 import org.activeio.SynchChannel;
 25   
 import org.activeio.packet.EOSPacket;
 26   
 
 27   
 /**
 28   
  * Provides an InputStream for a given SynchChannel.
 29   
  *  
 30   
  * @version $Revision$
 31   
  */
 32   
 public class SynchChannelInputStream extends InputStream {
 33   
     
 34   
     private final SynchChannel channel;
 35   
     private Packet lastPacket;
 36   
     private boolean closed;
 37   
     private long timeout = Channel.WAIT_FOREVER_TIMEOUT;
 38   
     
 39   
     /**
 40   
      * @param channel
 41   
      */
 42  4
     public SynchChannelInputStream(final SynchChannel channel) {
 43  4
         this.channel = channel;
 44   
     }
 45   
     
 46   
     /**
 47   
      * @see java.io.InputStream#read()
 48   
      */
 49  0
     public int read() throws IOException {
 50  0
         while( true ) {
 51  0
             if( lastPacket==null ) {
 52  0
                 try {
 53  0
                     lastPacket = channel.read(timeout);
 54   
                 } catch (IOException e) {
 55  0
                     throw (IOException)new IOException("Channel failed: "+e.getMessage()).initCause(e);
 56   
                 }
 57   
             }
 58  0
             if( lastPacket.hasRemaining() ) {
 59  0
                 return lastPacket.read();
 60   
             }
 61   
         }
 62   
     }
 63   
 
 64   
     /**
 65   
      * @see java.io.InputStream#read(byte[], int, int)
 66   
      */
 67  13
     public int read(byte[] b, int off, int len) throws IOException {
 68  13
         while( true ) {
 69  15
             if( lastPacket==null || !lastPacket.hasRemaining() ) {
 70  9
                 try {
 71  9
                     lastPacket = channel.read(timeout);
 72   
                 } catch (IOException e) {
 73  1
                     throw (IOException)new IOException("Channel failed: "+e.getMessage()).initCause(e);
 74   
                 }
 75   
             }
 76  14
             if( lastPacket==EOSPacket.EOS_PACKET ) {
 77  0
                 return -1;
 78   
             }
 79  14
             if( lastPacket!=null && lastPacket.hasRemaining() ) {
 80  12
                 return lastPacket.read(b, off, len);
 81   
             }
 82   
         }
 83   
     }
 84   
  
 85   
     /**
 86   
      * @see java.io.InputStream#close()
 87   
      */
 88  4
     public void close() throws IOException {
 89  4
         closed=true;
 90  4
         super.close();
 91   
     }
 92   
     
 93  0
     public boolean isClosed() {
 94  0
         return closed;
 95   
     }
 96   
 
 97   
     /**
 98   
      * @param timeout
 99   
      */
 100  12
     public void setTimeout(long timeout) {
 101  12
         if( timeout <= 0 )
 102  4
             timeout = Channel.WAIT_FOREVER_TIMEOUT;
 103  12
         this.timeout = timeout;
 104   
     }
 105   
 
 106   
     /**
 107   
      * @return
 108   
      */
 109  0
     public long getTimeout() {
 110  0
         if( timeout == Channel.WAIT_FOREVER_TIMEOUT )
 111  0
             return 0;
 112  0
         return timeout;
 113   
     }
 114   
 }
 115