Showing the changes to java/pkg/sun/net/www/http/PosterOutputStream.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.net.www.http; | |
| 27 | + | |
| 28 | +import java.io.*; | |
| 29 | +import java.net.*; | |
| 30 | + | |
| 31 | +/** | |
| 32 | + * Instances of this class are returned to applications for the purpose of | |
| 33 | + * sending user data for a HTTP POST or PUT request. This class is used | |
| 34 | + * when the content-length will be specified in the header of the request. | |
| 35 | + * The semantics of ByteArrayOutputStream are extended so that | |
| 36 | + * when close() is called, it is no longer possible to write | |
| 37 | + * additional data to the stream. From this point the content length of | |
| 38 | + * the request is fixed and cannot change. | |
| 39 | + * | |
| 40 | + * @author Michael McMahon | |
| 41 | + */ | |
| 42 | + | |
| 43 | +public class PosterOutputStream extends ByteArrayOutputStream { | |
| 44 | + | |
| 45 | + private boolean closed; | |
| 46 | + | |
| 47 | + /** | |
| 48 | + * Creates a new output stream for POST user data | |
| 49 | + */ | |
| 50 | + public PosterOutputStream () { | |
| 51 | + super (256); | |
| 52 | + } | |
| 53 | + | |
| 54 | + /** | |
| 55 | + * Writes the specified byte to this output stream. | |
| 56 | + * | |
| 57 | + * @param b the byte to be written. | |
| 58 | + */ | |
| 59 | + public synchronized void write(int b) { | |
| 60 | + if (closed) { | |
| 61 | + return; | |
| 62 | + } | |
| 63 | + super.write (b); | |
| 64 | + } | |
| 65 | + | |
| 66 | + /** | |
| 67 | + * Writes <code>len</code> bytes from the specified byte array | |
| 68 | + * starting at offset <code>off</code> to this output stream. | |
| 69 | + * | |
| 70 | + * @param b the data. | |
| 71 | + * @param off the start offset in the data. | |
| 72 | + * @param len the number of bytes to write. | |
| 73 | + */ | |
| 74 | + public synchronized void write(byte b[], int off, int len) { | |
| 75 | + if (closed) { | |
| 76 | + return; | |
| 77 | + } | |
| 78 | + super.write (b, off, len); | |
| 79 | + } | |
| 80 | + | |
| 81 | + /** | |
| 82 | + * Resets the <code>count</code> field of this output | |
| 83 | + * stream to zero, so that all currently accumulated output in the | |
| 84 | + * ouput stream is discarded. The output stream can be used again, | |
| 85 | + * reusing the already allocated buffer space. If the output stream | |
| 86 | + * has been closed, then this method has no effect. | |
| 87 | + * | |
| 88 | + * @see java.io.ByteArrayInputStream#count | |
| 89 | + */ | |
| 90 | + public synchronized void reset() { | |
| 91 | + if (closed) { | |
| 92 | + return; | |
| 93 | + } | |
| 94 | + super.reset (); | |
| 95 | + } | |
| 96 | + | |
| 97 | + /** | |
| 98 | + * After close() has been called, it is no longer possible to write | |
| 99 | + * to this stream. Further calls to write will have no effect. | |
| 100 | + */ | |
| 101 | + public synchronized void close() throws IOException { | |
| 102 | + closed = true; | |
| 103 | + super.close (); | |
| 104 | + } | |
| 105 | +} | |