1 /* 2 * Copyright (c) 2009-2010 jMonkeyEngine 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 package com.jme3.network.serializing.serializers; 34 35 import com.jme3.network.Message; 36 import com.jme3.network.message.GZIPCompressedMessage; 37 import com.jme3.network.serializing.Serializer; 38 import java.io.ByteArrayInputStream; 39 import java.io.ByteArrayOutputStream; 40 import java.io.IOException; 41 import java.nio.ByteBuffer; 42 import java.util.zip.GZIPInputStream; 43 import java.util.zip.GZIPOutputStream; 44 45 /** 46 * Serializes GZIP messages. 47 * 48 * @author Lars Wesselius 49 */ 50 public class GZIPSerializer extends Serializer { 51 52 @SuppressWarnings("unchecked") readObject(ByteBuffer data, Class<T> c)53 public <T> T readObject(ByteBuffer data, Class<T> c) throws IOException { 54 try 55 { 56 GZIPCompressedMessage result = new GZIPCompressedMessage(); 57 58 byte[] byteArray = new byte[data.remaining()]; 59 60 data.get(byteArray); 61 62 GZIPInputStream in = new GZIPInputStream(new ByteArrayInputStream(byteArray)); 63 ByteArrayOutputStream out = new ByteArrayOutputStream(); 64 65 byte[] tmp = new byte[9012]; 66 int read; 67 68 while (in.available() > 0 && ((read = in.read(tmp)) > 0)) { 69 out.write(tmp, 0, read); 70 } 71 72 result.setMessage((Message)Serializer.readClassAndObject(ByteBuffer.wrap(out.toByteArray()))); 73 return (T)result; 74 } 75 catch (Exception e) { 76 e.printStackTrace(); 77 throw new IOException(e.toString()); 78 } 79 } 80 writeObject(ByteBuffer buffer, Object object)81 public void writeObject(ByteBuffer buffer, Object object) throws IOException { 82 if (!(object instanceof GZIPCompressedMessage)) return; 83 Message message = ((GZIPCompressedMessage)object).getMessage(); 84 85 ByteBuffer tempBuffer = ByteBuffer.allocate(512000); 86 Serializer.writeClassAndObject(tempBuffer, message); 87 88 ByteArrayOutputStream byteArrayOutput = new ByteArrayOutputStream(); 89 GZIPOutputStream gzipOutput = new GZIPOutputStream(byteArrayOutput); 90 91 gzipOutput.write(tempBuffer.array()); 92 gzipOutput.flush(); 93 gzipOutput.finish(); 94 gzipOutput.close(); 95 96 buffer.put(byteArrayOutput.toByteArray()); 97 } 98 } 99