Clover coverage report - ActiveIO - 1.0 Coverage timestamp: Fri Apr 22 2005 14:27:22 PDT FRAMES NO FRAMES |
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% |

1 |  |
     /**
2 |  |
     *
3 |  |
     * Copyright 2004 Hiram Chirino
4 |  |
     *
5 |  |
     *  Licensed under the Apache License, Version 2.0 (the "License");
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     *  you may not use this file except in compliance with the License.
7 |  |
     *  You may obtain a copy of the License at
8 |  |
     *
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     *     http://www.apache.org/licenses/LICENSE-2.0
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     *
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     *  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 |  |
      *
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      * @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 |  |