Line | Hits | Source |
---|---|---|
1 | /* | |
2 | ||
3 | Copyright 2004, Martian Software, Inc. | |
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 | ||
19 | package com.martiansoftware.nailgun; | |
20 | ||
21 | import java.io.IOException; | |
22 | import java.io.InputStream; | |
23 | ||
24 | /** | |
25 | * The class name is pretty descriptive. This creates an InputStream | |
26 | * much like a FilterInputStream, but with the wrapped InputStream | |
27 | * being local to the current Thread. By setting System.in to a | |
28 | * ThreadLocalInputStream, different Threads can read from different | |
29 | * InputStreams simply by using System.in. Of course, the init() | |
30 | * method must be called by the Thread that wishes to use the | |
31 | * wrapped stream. | |
32 | * | |
33 | * @author <a href="http://www.martiansoftware.com/contact.html">Marty Lamb</a> | |
34 | */ | |
35 | class ThreadLocalInputStream extends InputStream { | |
36 | ||
37 | /** | |
38 | * The InputStreams for the various threads | |
39 | */ | |
40 | 0 | private InheritableThreadLocal streams = null; |
41 | ||
42 | 0 | private InputStream defaultInputStream = null; |
43 | ||
44 | /** | |
45 | * @param defaultInputStream the InputStream that will be used if the | |
46 | * current thread has not called init() | |
47 | */ | |
48 | ThreadLocalInputStream(InputStream defaultInputStream) { | |
49 | 0 | super(); |
50 | 0 | streams = new InheritableThreadLocal(); |
51 | 0 | this.defaultInputStream = defaultInputStream; |
52 | 0 | init(null); |
53 | 0 | } |
54 | ||
55 | /** | |
56 | * Sets the InputStream for the current thread | |
57 | * @param streamForCurrentThread the InputStream for the current thread | |
58 | */ | |
59 | void init(InputStream streamForCurrentThread) { | |
60 | 0 | streams.set(streamForCurrentThread); |
61 | 0 | } |
62 | ||
63 | /** | |
64 | * Returns this thread's InputStream | |
65 | * @return this thread's InputStream | |
66 | */ | |
67 | InputStream getInputStream() { | |
68 | 0 | InputStream result = (InputStream) streams.get(); |
69 | 0 | return ((result == null) ? defaultInputStream : result); |
70 | } | |
71 | ||
72 | // BEGIN delegated java.io.InputStream methods | |
73 | ||
74 | /** | |
75 | * @see java.io.InputStream#available() | |
76 | */ | |
77 | public int available() throws IOException { | |
78 | 0 | return (getInputStream().available()); |
79 | } | |
80 | ||
81 | /** | |
82 | * @see java.io.InputStream#close() | |
83 | */ | |
84 | public void close() throws IOException { | |
85 | 0 | getInputStream().close(); |
86 | 0 | } |
87 | ||
88 | /** | |
89 | * @see java.io.InputStream#mark(int) | |
90 | */ | |
91 | public void mark(int readlimit) { | |
92 | 0 | getInputStream().mark(readlimit); |
93 | 0 | } |
94 | ||
95 | /** | |
96 | * @see java.io.InputStream#markSupported() | |
97 | */ | |
98 | public boolean markSupported() { | |
99 | 0 | return (getInputStream().markSupported()); |
100 | } | |
101 | ||
102 | /** | |
103 | * @see java.io.InputStream#read() | |
104 | */ | |
105 | public int read() throws IOException { | |
106 | 0 | return (getInputStream().read()); |
107 | } | |
108 | ||
109 | /** | |
110 | * @see java.io.InputStream#read(byte[]) | |
111 | */ | |
112 | public int read(byte[] b) throws IOException { | |
113 | 0 | return (getInputStream().read(b)); |
114 | } | |
115 | ||
116 | /** | |
117 | * @see java.io.InputStream#read(byte[],int,int) | |
118 | */ | |
119 | public int read(byte[] b, int off, int len) throws IOException { | |
120 | 0 | return (getInputStream().read(b, off, len)); |
121 | } | |
122 | ||
123 | /** | |
124 | * @see java.io.InputStream#reset() | |
125 | */ | |
126 | public void reset() throws IOException { | |
127 | 0 | getInputStream().reset(); |
128 | 0 | } |
129 | ||
130 | /** | |
131 | * @see java.io.InputStream#skip(long) | |
132 | */ | |
133 | public long skip(long n) throws IOException { | |
134 | 0 | return (getInputStream().skip(n)); |
135 | } | |
136 | ||
137 | // BEGIN delegated java.io.InputStream methods | |
138 | ||
139 | // Note: Should java.lang.Object methods be delegated? If not, and | |
140 | // someone synchronizes on this stream, processes might be blocked | |
141 | // that shouldn't be. It would certainly be stupid to delegate | |
142 | // finalize(). Not so clear are hashcode(), equals(), notify(), and | |
143 | // the wait() methods. | |
144 | } |
this report was generated by version 1.0.5 of jcoverage. |
copyright © 2003, jcoverage ltd. all rights reserved. |