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comparison src/com/go/trove/net/BufferedSocket.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
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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 }