2 * Copyright (c) 2001-2007 Sun Microsystems, Inc. All rights reserved.
4 * The Sun Project JXTA(TM) Software License
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
16 * 3. The end-user documentation included with the redistribution, if any, must
17 * include the following acknowledgment: "This product includes software
18 * developed by Sun Microsystems, Inc. for JXTA(TM) technology."
19 * Alternately, this acknowledgment may appear in the software itself, if
20 * and wherever such third-party acknowledgments normally appear.
22 * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
23 * not be used to endorse or promote products derived from this software
24 * without prior written permission. For written permission, please contact
25 * Project JXTA at http://www.jxta.org.
27 * 5. Products derived from this software may not be called "JXTA", nor may
28 * "JXTA" appear in their name, without prior written permission of Sun.
30 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
32 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SUN
33 * MICROSYSTEMS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
34 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
36 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
37 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
38 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
39 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
41 * JXTA is a registered trademark of Sun Microsystems, Inc. in the United
42 * States and other countries.
44 * Please see the license information page at :
45 * <http://www.jxta.org/project/www/license.html> for instructions on use of
46 * the license in source files.
48 * ====================================================================
50 * This software consists of voluntary contributions made by many individuals
51 * on behalf of Project JXTA. For more information on Project JXTA, please see
52 * http://www.jxta.org.
54 * This license is based on the BSD license adopted by the Apache Foundation.
56 package net.jxta.socket;
59 import java.io.IOException;
60 import java.io.OutputStream;
61 import java.net.SocketException;
65 * This class implements a buffered output stream. By setting up such an output
66 * stream, an application can write bytes to the underlying output stream
67 * without necessarily causing a call to the underlying system for each byte
68 * written. Data buffer is flushed to the underlying stream, when it is full,
69 * or an explicit call to flush is made.
71 class JxtaSocketOutputStream extends OutputStream {
74 * If {@code true} then this socket is closed.
76 protected boolean closed = false;
84 * byte count in buffer
89 * JxtaSocket associated with this stream
91 protected JxtaSocket socket;
94 * Constructor for the JxtaSocketOutputStream object
96 * @param socket JxtaSocket associated with this stream
97 * @param size buffer size in bytes
99 public JxtaSocketOutputStream(JxtaSocket socket, int size) {
101 throw new IllegalArgumentException("Buffer size <= 0");
103 buf = new byte[size];
104 this.socket = socket;
111 public synchronized void close() throws IOException {
117 * Similar to close except that any buffered data is discarded.
119 synchronized void hardClose() {
125 * Flush the internal buffer
127 * @throws IOException if an i/o error occurs
129 private void flushBuffer() throws IOException {
132 socket.write(buf, 0, count);
141 public synchronized void write(int b) throws IOException {
144 throw new SocketException("Socket Closed.");
147 if (count >= buf.length) {
150 buf[count++] = (byte) b;
157 public synchronized void write(byte b[], int off, int len) throws IOException {
158 int left = buf.length - count;
161 throw new SocketException("Socket Closed.");
165 System.arraycopy(b, off, buf, count, left);
172 // chunk data if larger than buf.length
173 while (len >= buf.length) {
174 socket.write(b, off, buf.length);
178 System.arraycopy(b, off, buf, count, len);
186 public synchronized void flush() throws IOException {