Mercurial > hg > blitz_condensed
comparison src/com/go/trove/net/BufferedSocket.java @ 0:3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 21 Mar 2009 11:00:06 +0000 |
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-1:000000000000 | 0:3dc0c5604566 |
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1 /* ==================================================================== | |
2 * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group | |
3 * ==================================================================== | |
4 * The Tea Software License, Version 1.1 | |
5 * | |
6 * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved. | |
7 * | |
8 * Redistribution and use in source and binary forms, with or without | |
9 * modification, are permitted provided that the following conditions | |
10 * are met: | |
11 * | |
12 * 1. Redistributions of source code must retain the above copyright | |
13 * notice, this list of conditions and the following disclaimer. | |
14 * | |
15 * 2. Redistributions in binary form must reproduce the above copyright | |
16 * notice, this list of conditions and the following disclaimer in | |
17 * the documentation and/or other materials provided with the | |
18 * distribution. | |
19 * | |
20 * 3. The end-user documentation included with the redistribution, | |
21 * if any, must include the following acknowledgment: | |
22 * "This product includes software developed by the | |
23 * Walt Disney Internet Group (http://opensource.go.com/)." | |
24 * Alternately, this acknowledgment may appear in the software itself, | |
25 * if and wherever such third-party acknowledgments normally appear. | |
26 * | |
27 * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must | |
28 * not be used to endorse or promote products derived from this | |
29 * software without prior written permission. For written | |
30 * permission, please contact opensource@dig.com. | |
31 * | |
32 * 5. Products derived from this software may not be called "Tea", | |
33 * "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet", | |
34 * "Kettle", "Trove" or "BeanDoc" appear in their name, without prior | |
35 * written permission of the Walt Disney Internet Group. | |
36 * | |
37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED | |
38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
40 * DISCLAIMED. IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS | |
41 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
42 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
43 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
44 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
45 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
48 * ==================================================================== | |
49 * | |
50 * For more information about Tea, please see http://opensource.go.com/. | |
51 */ | |
52 | |
53 package com.go.trove.net; | |
54 | |
55 import java.io.*; | |
56 import java.net.Socket; | |
57 import com.go.trove.io.*; | |
58 | |
59 /****************************************************************************** | |
60 * A convenient class for supporting buffering on socket I/O streams. | |
61 * | |
62 * @author Brian S O'Neill | |
63 * @version | |
64 * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 00/12/06 <!-- $--> | |
65 */ | |
66 public class BufferedSocket extends FilteredSocket { | |
67 private final int mInBufSize; | |
68 private final int mOutBufSize; | |
69 | |
70 private InputStream mIn; | |
71 private OutputStream mOut; | |
72 | |
73 public BufferedSocket(Socket s) throws IOException { | |
74 this(s, -1, -1); | |
75 } | |
76 | |
77 /** | |
78 * @param inputBufferSize specify 0 for no buffering, -1 for default | |
79 * @param outputBufferSize specify 0 for no buffering, -1 for default | |
80 */ | |
81 public BufferedSocket(Socket s, | |
82 int inputBufferSize, | |
83 int outputBufferSize) throws IOException { | |
84 super(s); | |
85 mInBufSize = inputBufferSize; | |
86 mOutBufSize = outputBufferSize; | |
87 } | |
88 | |
89 public synchronized InputStream getInputStream() throws IOException { | |
90 if (mIn == null) { | |
91 InputStream in = super.getInputStream(); | |
92 | |
93 if (mInBufSize < 0) { | |
94 mIn = new FastBufferedInputStream(in); | |
95 } | |
96 else if (mInBufSize > 0) { | |
97 mIn = new FastBufferedInputStream(in, mInBufSize); | |
98 } | |
99 else { | |
100 mIn = in; | |
101 } | |
102 } | |
103 return mIn; | |
104 } | |
105 | |
106 public synchronized OutputStream getOutputStream() throws IOException { | |
107 if (mOut == null) { | |
108 OutputStream out = super.getOutputStream(); | |
109 | |
110 if (mOutBufSize < 0) { | |
111 mOut = new FastBufferedOutputStream(out); | |
112 } | |
113 else if (mOutBufSize > 0) { | |
114 mOut = new FastBufferedOutputStream(out, mOutBufSize); | |
115 } | |
116 else { | |
117 mOut = out; | |
118 } | |
119 } | |
120 return mOut; | |
121 } | |
122 | |
123 public synchronized void close() throws IOException { | |
124 // Ensure buffered output is flushed. | |
125 if (mOutBufSize != 0 && mOut != null) { | |
126 mOut.close(); | |
127 } | |
128 super.close(); | |
129 } | |
130 } |