Showing the changes to java/pkg/sun/rmi/transport/proxy/HttpOutputStream.java (1 of 18352 files). Show all
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| 1 | /* | ||
| 2 | * Copyright (c) 1996, 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 | package sun.rmi.transport.proxy; | ||
| 26 | |||
| 27 | import java.io.*; | ||
| 28 | |||
| 29 | /** | ||
| 30 | * The HttpOutputStream class assists the HttpSendSocket and HttpReceiveSocket | ||
| 31 | * classes by providing an output stream that buffers its entire input until | ||
| 32 | * closed, and then it sends the complete transmission prefixed by the end of | ||
| 33 | * an HTTP header that specifies the content length. | ||
| 34 | */ | ||
| 35 | class HttpOutputStream extends ByteArrayOutputStream { | ||
| 36 | |||
| 37 | /** the output stream to send response to */ | ||
| 38 | protected OutputStream out; | ||
| 39 | |||
| 40 | /** true if HTTP response has been sent */ | ||
| 41 | boolean responseSent = false; | ||
| 42 | |||
| 43 | /** | ||
| 44 | * Begin buffering new HTTP response to be sent to a given stream. | ||
| 45 | * @param out the OutputStream to send response to | ||
| 46 | */ | ||
| 47 | public HttpOutputStream(OutputStream out) { | ||
| 48 | super(); | ||
| 49 | this.out = out; | ||
| 50 | } | ||
| 51 | |||
| 52 | /** | ||
| 53 | * On close, send HTTP-packaged response. | ||
| 54 | */ | ||
| 55 | public synchronized void close() throws IOException { | ||
| 56 | if (!responseSent) { | ||
| 57 | /* | ||
| 58 | * If response would have zero content length, then make it | ||
| 59 | * have some arbitrary data so that certain clients will not | ||
| 60 | * fail because the "document contains no data". | ||
| 61 | */ | ||
| 62 | if (size() == 0) | ||
| 63 | write(emptyData); | ||
| 64 | |||
| 65 | DataOutputStream dos = new DataOutputStream(out); | ||
| 66 | dos.writeBytes("Content-type: application/octet-stream\r\n"); | ||
| 67 | dos.writeBytes("Content-length: " + size() + "\r\n"); | ||
| 68 | dos.writeBytes("\r\n"); | ||
| 69 | writeTo(dos); | ||
| 70 | dos.flush(); | ||
| 71 | // Do not close the underlying stream here, because that would | ||
| 72 | // close the underlying socket and prevent reading a response. | ||
| 73 | reset(); // reset byte array | ||
| 74 | responseSent = true; | ||
| 75 | } | ||
| 76 | } | ||
| 77 | |||
| 78 | /** data to send if the response would otherwise be empty */ | ||
| 79 | private static byte[] emptyData = { 0 }; | ||
| 80 | } | ||