Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
StreamFeeder |
|
| 2.2;2.2 |
1 | package org.apache.maven.it.util.cli; | |
2 | ||
3 | /* | |
4 | * The MIT License | |
5 | * | |
6 | * Copyright (c) 2004, The Codehaus | |
7 | * | |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy of | |
9 | * this software and associated documentation files (the "Software"), to deal in | |
10 | * the Software without restriction, including without limitation the rights to | |
11 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies | |
12 | * of the Software, and to permit persons to whom the Software is furnished to do | |
13 | * so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in all | |
16 | * copies or substantial portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
24 | * SOFTWARE. | |
25 | */ | |
26 | ||
27 | import java.io.IOException; | |
28 | import java.io.InputStream; | |
29 | import java.io.OutputStream; | |
30 | ||
31 | /** | |
32 | * Read from an InputStream and write the output to an OutputStream. | |
33 | * | |
34 | * @author <a href="mailto:trygvis@inamo.no">Trygve Laugstøl</a> | |
35 | * @version $Id: StreamFeeder.java 467764 2006-10-25 21:04:07Z jvanzyl $ | |
36 | */ | |
37 | public class StreamFeeder | |
38 | extends Thread | |
39 | { | |
40 | private InputStream input; | |
41 | ||
42 | private OutputStream output; | |
43 | ||
44 | private boolean done; | |
45 | ||
46 | /** | |
47 | * Create a new StreamFeeder | |
48 | * | |
49 | * @param input Stream to read from | |
50 | * @param output Stream to write to | |
51 | */ | |
52 | public StreamFeeder( InputStream input, OutputStream output ) | |
53 | 0 | { |
54 | 0 | this.input = input; |
55 | ||
56 | 0 | this.output = output; |
57 | 0 | } |
58 | ||
59 | // ---------------------------------------------------------------------- | |
60 | // Runnable implementation | |
61 | // ---------------------------------------------------------------------- | |
62 | ||
63 | public void run() | |
64 | { | |
65 | try | |
66 | { | |
67 | 0 | feed(); |
68 | } | |
69 | 0 | catch ( Throwable ex ) |
70 | { | |
71 | // Catched everything so the streams will be closed and flagged as done. | |
72 | } | |
73 | finally | |
74 | { | |
75 | 0 | close(); |
76 | ||
77 | 0 | done = true; |
78 | ||
79 | 0 | synchronized ( this ) |
80 | { | |
81 | 0 | this.notifyAll(); |
82 | 0 | } |
83 | 0 | } |
84 | 0 | } |
85 | ||
86 | // ---------------------------------------------------------------------- | |
87 | // | |
88 | // ---------------------------------------------------------------------- | |
89 | ||
90 | public void close() | |
91 | { | |
92 | 0 | if ( input != null ) |
93 | { | |
94 | 0 | synchronized ( input ) |
95 | { | |
96 | try | |
97 | { | |
98 | 0 | input.close(); |
99 | } | |
100 | 0 | catch ( IOException ex ) |
101 | { | |
102 | // ignore | |
103 | 0 | } |
104 | ||
105 | 0 | input = null; |
106 | 0 | } |
107 | } | |
108 | ||
109 | 0 | if ( output != null ) |
110 | { | |
111 | 0 | synchronized ( output ) |
112 | { | |
113 | try | |
114 | { | |
115 | 0 | output.close(); |
116 | } | |
117 | 0 | catch ( IOException ex ) |
118 | { | |
119 | // ignore | |
120 | 0 | } |
121 | ||
122 | 0 | output = null; |
123 | 0 | } |
124 | } | |
125 | 0 | } |
126 | ||
127 | public boolean isDone() | |
128 | { | |
129 | 0 | return done; |
130 | } | |
131 | ||
132 | // ---------------------------------------------------------------------- | |
133 | // | |
134 | // ---------------------------------------------------------------------- | |
135 | ||
136 | private void feed() | |
137 | throws IOException | |
138 | { | |
139 | 0 | int data = input.read(); |
140 | ||
141 | 0 | while ( !done && data != -1 ) |
142 | { | |
143 | 0 | synchronized ( output ) |
144 | { | |
145 | 0 | output.write( data ); |
146 | ||
147 | 0 | data = input.read(); |
148 | 0 | } |
149 | } | |
150 | 0 | } |
151 | } |