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.serializing.Serializer; 36 import java.io.IOException; 37 import java.nio.BufferOverflowException; 38 import java.nio.ByteBuffer; 39 40 /** 41 * String serializer. 42 * 43 * @author Lars Wesselius 44 */ 45 @SuppressWarnings("unchecked") 46 public class StringSerializer extends Serializer { 47 readObject(ByteBuffer data, Class c)48 public String readObject(ByteBuffer data, Class c) throws IOException { 49 50 int length = -1; 51 byte type = data.get(); 52 if (type == (byte)0) { 53 return null; 54 } else if (type == (byte)1) { 55 // Byte 56 length = data.get(); 57 } else if (type == (byte)2) { 58 // Short 59 length = data.getShort(); 60 } else if (type == (byte)3) { 61 // Int 62 length = data.getInt(); 63 } 64 if (length == -1) throw new IOException("Could not read String: Invalid length identifier."); 65 66 byte[] buffer = new byte[length]; 67 data.get(buffer); 68 return new String(buffer, "UTF-8"); 69 } 70 writeObject(ByteBuffer buffer, Object object)71 public void writeObject(ByteBuffer buffer, Object object) throws IOException { 72 String string = (String)object; 73 74 if (string == null) { 75 // Write that it's 0. 76 buffer.put((byte)0); 77 return; 78 } 79 byte[] stringBytes = string.getBytes("UTF-8"); 80 int bufferLength = stringBytes.length; 81 82 try { 83 if (bufferLength <= Byte.MAX_VALUE) { 84 buffer.put((byte)1); 85 buffer.put((byte)bufferLength); 86 } else if (bufferLength <= Short.MAX_VALUE) { 87 buffer.put((byte)2); 88 buffer.putShort((short)bufferLength); 89 } else { 90 buffer.put((byte)3); 91 buffer.putInt(bufferLength); 92 } 93 buffer.put(stringBytes); 94 } 95 catch (BufferOverflowException e) { 96 e.printStackTrace(); 97 } 98 } 99 } 100