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Java > Open Source Codes > org > apache > commons > io > output > TeeOutputStream


1 /*
2  * Copyright 2001-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.commons.io.output;
17
18 import java.io.IOException JavaDoc;
19 import java.io.OutputStream JavaDoc;
20
21 /**
22  * Classic splitter of OutputStream. Named after the unix 'tee'
23  * command. It allows a stream to be branched off so there
24  * are now two streams.
25  *
26  * @author <a HREF="mailto:bayard@apache.org">Henri Yandell</a>
27  * @version $Id: TeeOutputStream.java,v 1.6 2004/02/23 04:53:04 bayard Exp $
28  */
29 public class TeeOutputStream extends ProxyOutputStream {
30
31     /** the second OutputStream to write to */
32     protected OutputStream JavaDoc branch;
33
34     /**
35      * Constructs a TeeOutputStream.
36      * @param out the main OutputStream
37      * @param branch the second OutputStream
38      */
39     public TeeOutputStream( OutputStream JavaDoc out, OutputStream JavaDoc branch ) {
40         super(out);
41         this.branch = branch;
42     }
43
44     /** @see java.io.OutputStream#write(byte[]) */
45     public synchronized void write(byte[] b) throws IOException JavaDoc {
46         super.write(b);
47         this.branch.write(b);
48     }
49
50     /** @see java.io.OutputStream#write(byte[], int, int) */
51     public synchronized void write(byte[] b, int off, int len) throws IOException JavaDoc {
52         super.write(b, off, len);
53         this.branch.write(b, off, len);
54     }
55
56     /** @see java.io.OutputStream#write(int) */
57     public synchronized void write(int b) throws IOException JavaDoc {
58         super.write(b);
59         this.branch.write(b);
60     }
61
62     /**
63      * Flushes both streams.
64      *
65      * @see java.io.OutputStream#flush()
66      */
67     public void flush() throws IOException JavaDoc {
68         super.flush();
69         this.branch.flush();
70     }
71
72     /**
73      * Closes both streams.
74      *
75      * @see java.io.OutputStream#close()
76      */
77     public void close() throws IOException JavaDoc {
78         super.close();
79         this.branch.close();
80     }
81
82 }
83
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