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
33package com.jme3.network.serializing.serializers;
34
35import com.jme3.export.Savable;
36import com.jme3.export.binary.BinaryExporter;
37import com.jme3.export.binary.BinaryImporter;
38import com.jme3.network.serializing.Serializer;
39import java.io.IOException;
40import java.io.InputStream;
41import java.io.OutputStream;
42import java.nio.ByteBuffer;
43
44public class SavableSerializer extends Serializer {
45
46    private BinaryExporter exporter = new BinaryExporter();
47    private BinaryImporter importer = new BinaryImporter();
48
49    private static class BufferOutputStream extends OutputStream {
50
51        ByteBuffer output;
52
53        public BufferOutputStream(ByteBuffer output){
54            this.output = output;
55        }
56
57        @Override
58        public void write(int b) throws IOException {
59            output.put( (byte) b );
60        }
61
62        @Override
63        public void write(byte[] b){
64            output.put(b);
65        }
66
67        @Override
68        public void write(byte[] b, int off, int len){
69            output.put(b, off, len);
70        }
71    }
72
73    private static class BufferInputStream extends InputStream {
74
75        ByteBuffer input;
76
77        public BufferInputStream(ByteBuffer input){
78            this.input = input;
79        }
80
81        @Override
82        public int read() throws IOException {
83            if (input.remaining() == 0)
84                return -1;
85            else
86                return input.get() & 0xff;
87        }
88
89        @Override
90        public int read(byte[] b){
91            return read(b, 0, b.length);
92        }
93
94        @Override
95        public int read(byte[] b, int off, int len){
96            int toRead = len > input.remaining() ? input.remaining() : len;
97            input.get(b, off, len);
98            return toRead;
99        }
100
101    }
102
103    @Override
104    @SuppressWarnings("unchecked")
105    public <T> T readObject(ByteBuffer data, Class<T> c) throws IOException {
106        BufferInputStream in = new BufferInputStream(data);
107        Savable s = importer.load(in);
108        in.close();
109        return (T) s;
110    }
111
112    @Override
113    public void writeObject(ByteBuffer buffer, Object object) throws IOException {
114        Savable s = (Savable) object;
115        BufferOutputStream out = new BufferOutputStream(buffer);
116        exporter.save(s, out);
117        out.close();
118    }
119
120}
121