001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.lib.cvsclient.response;
043:
044: import java.io.*;
045:
046: import org.netbeans.lib.cvsclient.event.*;
047: import org.netbeans.lib.cvsclient.util.*;
048:
049: /**
050: * Handles binary message responses. Translate dthe reponse into
051: * BinaryMessageEvents.
052: *
053: * @author Martin Entlicher
054: */
055: class MessageBinaryResponse implements Response {
056:
057: private static final int CHUNK_SIZE = 1024 * 256; // 256Kb
058:
059: public MessageBinaryResponse() {
060: // do nothing
061: }
062:
063: /**
064: * Process the data for the response.
065: * @param dis the data inputstream allowing the client to read the server's
066: * response. Note that the actual response name has already been read
067: * and the inputstream is positioned just before the first argument, if any.
068: */
069: public void process(LoggedDataInputStream dis,
070: ResponseServices services) throws ResponseException {
071: try {
072: String numBytesStr = dis.readLine();
073: int numBytes;
074: try {
075: numBytes = Integer.parseInt(numBytesStr);
076: } catch (NumberFormatException nfex) {
077: throw new ResponseException(nfex);
078: }
079: int chunk = Math.min(numBytes, CHUNK_SIZE);
080: byte[] bytes = new byte[chunk];
081: while (numBytes > 0) {
082: int len = dis.read(bytes, 0, chunk);
083: if (len == -1) {
084: throw new ResponseException("EOF",
085: ResponseException.getLocalMessage(
086: "CommandException.EndOfFile", null)); // NOI18N
087: }
088: numBytes -= len;
089: chunk = Math.min(numBytes, CHUNK_SIZE);
090: BinaryMessageEvent event = new BinaryMessageEvent(this ,
091: bytes, len);
092: services.getEventManager().fireCVSEvent(event);
093: }
094: } catch (EOFException ex) {
095: throw new ResponseException(ex,
096: ResponseException.getLocalMessage(
097: "CommandException.EndOfFile", null)); //NOI18N
098: } catch (IOException ex) {
099: throw new ResponseException(ex);
100: }
101: }
102:
103: /**
104: * Is this a terminal response, i.e. should reading of responses stop
105: * after this response. This is true for responses such as OK or
106: * an error response
107: */
108: public boolean isTerminalResponse() {
109: return false;
110: }
111: }
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