001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022 package org.granite.messaging.jmf.codec.std.impl;
023
024 import java.io.IOException;
025 import java.io.OutputStream;
026 import java.util.ArrayList;
027
028 import org.granite.messaging.jmf.CodecRegistry;
029 import org.granite.messaging.jmf.DumpContext;
030 import org.granite.messaging.jmf.InputContext;
031 import org.granite.messaging.jmf.JMFEncodingException;
032 import org.granite.messaging.jmf.OutputContext;
033 import org.granite.messaging.jmf.codec.StandardCodec;
034 import org.granite.messaging.jmf.codec.std.ArrayListCodec;
035
036 /**
037 * @author Franck WOLFF
038 */
039 public class ArrayListCodecImpl extends AbstractIntegerStringCodec<ArrayList<?>> implements ArrayListCodec {
040
041 public int getObjectType() {
042 return JMF_ARRAY_LIST;
043 }
044
045 public Class<?> getObjectClass() {
046 return ArrayList.class;
047 }
048
049 public void encode(OutputContext ctx, ArrayList<?> v) throws IOException {
050 final OutputStream os = ctx.getOutputStream();
051
052 int indexOfStoredObject = ctx.indexOfStoredObjects(v);
053 if (indexOfStoredObject >= 0) {
054 IntegerComponents ics = intComponents(indexOfStoredObject);
055 os.write(0x80 | (ics.length << 5) | JMF_ARRAY_LIST);
056 writeIntData(ctx, ics);
057 }
058 else {
059 ctx.addToStoredObjects(v);
060
061 Object[] snapshot = v.toArray();
062
063 IntegerComponents ics = intComponents(snapshot.length);
064 os.write((ics.length << 5) | JMF_ARRAY_LIST);
065 writeIntData(ctx, ics);
066
067 for (Object element : snapshot)
068 ctx.writeObject(element);
069 }
070 }
071
072 public ArrayList<?> decode(InputContext ctx, int parameterizedJmfType) throws IOException, ClassNotFoundException {
073 int jmfType = ctx.getSharedContext().getCodecRegistry().extractJmfType(parameterizedJmfType);
074
075 if (jmfType != JMF_ARRAY_LIST)
076 throw newBadTypeJMFEncodingException(jmfType, parameterizedJmfType);
077
078 int indexOrLength = readIntData(ctx, (parameterizedJmfType >> 5) & 0x03, false);
079 if ((parameterizedJmfType & 0x80) != 0)
080 return (ArrayList<?>)ctx.getSharedObject(indexOrLength);
081
082 ArrayList<Object> v = new ArrayList<Object>(indexOrLength);
083 ctx.addSharedObject(v);
084
085 for (int index = 0; index < indexOrLength; index++)
086 v.add(index, ctx.readObject());
087
088 return v;
089 }
090
091 public void dump(DumpContext ctx, int parameterizedJmfType) throws IOException {
092 final CodecRegistry codecRegistry = ctx.getSharedContext().getCodecRegistry();
093
094 int jmfType = codecRegistry.extractJmfType(parameterizedJmfType);
095
096 if (jmfType != JMF_ARRAY_LIST)
097 throw newBadTypeJMFEncodingException(jmfType, parameterizedJmfType);
098
099 int indexOrLength = readIntData(ctx, (parameterizedJmfType >> 5) & 0x03, false);
100 if ((parameterizedJmfType & 0x80) != 0) {
101 String v = (String)ctx.getSharedObject(indexOrLength);
102 ctx.indentPrintLn("<" + v + "@" + indexOrLength + ">");
103 return;
104 }
105
106 String v = ArrayList.class.getName() + "[" + indexOrLength + "]";
107 int indexOfStoredObject = ctx.addSharedObject(v);
108 ctx.indentPrintLn(v + "@" + indexOfStoredObject + " {");
109 ctx.incrIndent(1);
110
111 for (int index = 0; index < indexOrLength; index++) {
112 parameterizedJmfType = ctx.safeRead();
113 jmfType = codecRegistry.extractJmfType(parameterizedJmfType);
114 StandardCodec<?> codec = codecRegistry.getCodec(jmfType);
115
116 if (codec == null)
117 throw new JMFEncodingException("No codec for JMF type: " + jmfType);
118
119 codec.dump(ctx, parameterizedJmfType);
120
121 }
122
123 ctx.incrIndent(-1);
124 ctx.indentPrintLn("}");
125 }
126 }