159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/* 259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Copyright (c) 2009-2010 jMonkeyEngine, Java Game Networking 359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * All rights reserved. 459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Redistribution and use in source and binary forms, with or without 659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * modification, are permitted provided that the following conditions are 759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * met: 859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions of source code must retain the above copyright 1059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer. 1159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions in binary form must reproduce the above copyright 1359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer in the 1459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * documentation and/or other materials provided with the distribution. 1559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 1759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * may be used to endorse or promote products derived from this software 1859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * without specific prior written permission. 1959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 2059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 2459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 2559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 2659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 2759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 2859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 2959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 3059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 3259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapackage com.jme3.network.serializing.serializers; 3459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.network.serializing.Serializer; 3659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.io.IOException; 3759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.lang.reflect.Array; 3859b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.lang.reflect.Modifier; 3959b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.nio.ByteBuffer; 4059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 4159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/** 4259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Array serializer 4359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 4459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @author Nathan Sweet 4559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 4659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta@SuppressWarnings("unchecked") 4759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapublic class ArraySerializer extends Serializer { 4859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private int[] getDimensions (Object array) { 4959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int depth = 0; 5059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Class nextClass = array.getClass().getComponentType(); 5159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta while (nextClass != null) { 5259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta depth++; 5359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta nextClass = nextClass.getComponentType(); 5459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 5559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int[] dimensions = new int[depth]; 5659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dimensions[0] = Array.getLength(array); 5759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (depth > 1) collectDimensions(array, 1, dimensions); 5859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return dimensions; 5959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 6059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 6159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private void collectDimensions (Object array, int dimension, int[] dimensions) { 6259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta boolean elementsAreArrays = dimension < dimensions.length - 1; 6359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0, s = Array.getLength(array); i < s; i++) { 6459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Object element = Array.get(array, i); 6559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (element == null) continue; 6659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dimensions[dimension] = Math.max(dimensions[dimension], Array.getLength(element)); 6759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (elementsAreArrays) collectDimensions(element, dimension + 1, dimensions); 6859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 6959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 7059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 7159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public <T> T readObject(ByteBuffer data, Class<T> c) throws IOException { 7259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta byte dimensionCount = data.get(); 7359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (dimensionCount == 0) 7459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return null; 7559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 7659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int[] dimensions = new int[dimensionCount]; 7759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < dimensionCount; i++) 7859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dimensions[i] = data.getInt(); 7959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Serializer elementSerializer = null; 8159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Class elementClass = c; 8359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta while (elementClass.getComponentType() != null) 8459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta elementClass = elementClass.getComponentType(); 8559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (Modifier.isFinal(elementClass.getModifiers())) elementSerializer = Serializer.getSerializer(elementClass); 8759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Create array and read in the data. 8859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta T array = (T)Array.newInstance(elementClass, dimensions); 8959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta readArray(elementSerializer, elementClass, data, array, 0, dimensions); 9059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return array; 9159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 9259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void writeObject(ByteBuffer buffer, Object object) throws IOException { 9459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (object == null){ 9559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta buffer.put((byte)0); 9659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return; 9759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 9859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int[] dimensions = getDimensions(object); 10059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta buffer.put((byte)dimensions.length); 10159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int dimension : dimensions) buffer.putInt(dimension); 10259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Serializer elementSerializer = null; 10359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 10459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Class elementClass = object.getClass(); 10559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta while (elementClass.getComponentType() != null) { 10659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta elementClass = elementClass.getComponentType(); 10759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 10859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 10959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (Modifier.isFinal(elementClass.getModifiers())) elementSerializer = Serializer.getSerializer(elementClass); 11059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta writeArray(elementSerializer, buffer, object, 0, dimensions.length); 11159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 11359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private void writeArray(Serializer elementSerializer, ByteBuffer buffer, Object array, int dimension, int dimensionCount) throws IOException { 11459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int length = Array.getLength(array); 11559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (dimension > 0) { 11659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta buffer.putInt(length); 11759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Write array data. 11959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta boolean elementsAreArrays = dimension < dimensionCount - 1; 12059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < length; i++) { 12159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Object element = Array.get(array, i); 12259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (elementsAreArrays) { 12359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (element != null) writeArray(elementSerializer, buffer, element, dimension + 1, dimensionCount); 12459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else if (elementSerializer != null) { 12559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta elementSerializer.writeObject(buffer, element); 12659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 12759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Each element could be a different type. Store the class with the object. 12859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Serializer.writeClassAndObject(buffer, element); 12959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private void readArray (Serializer elementSerializer, Class elementClass, ByteBuffer buffer, Object array, int dimension, int[] dimensions) throws IOException { 13459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta boolean elementsAreArrays = dimension < dimensions.length - 1; 13559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int length; 13659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (dimension == 0) { 13759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta length = dimensions[0]; 13859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 13959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta length = buffer.getInt(); 14059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < length; i++) { 14259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (elementsAreArrays) { 14359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Nested array. 14459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Object element = Array.get(array, i); 14559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (element != null) readArray(elementSerializer, elementClass, buffer, element, dimension + 1, dimensions); 14659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else if (elementSerializer != null) { 14759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Use same converter (and class) for all elements. 14859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Array.set(array, i, elementSerializer.readObject(buffer, elementClass)); 14959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 15059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Each element could be a different type. Look up the class with the object. 15159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Array.set(array, i, Serializer.readClassAndObject(buffer)); 15259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta} 156