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.persistence;
023
024 import java.lang.reflect.Type;
025 import java.lang.reflect.ParameterizedType;
026 import java.util.Comparator;
027 import java.util.HashMap;
028 import java.util.Map;
029 import java.util.SortedMap;
030 import java.util.TreeMap;
031
032 import org.granite.config.GraniteConfig;
033 import org.granite.context.GraniteContext;
034 import org.granite.messaging.amf.io.convert.Converters;
035 import org.granite.util.TypeUtil;
036
037 /**
038 * @author Franck WOLFF
039 */
040 public class ExternalizablePersistentMap extends AbstractExternalizablePersistentCollection {
041
042 private static final long serialVersionUID = 1L;
043
044 public ExternalizablePersistentMap() {
045 }
046
047 public ExternalizablePersistentMap(Map<?, ?> content, boolean initialized, boolean dirty) {
048 super(null, initialized, dirty);
049 setContentFromMap(content);
050 }
051
052 public ExternalizablePersistentMap(Object[] content, boolean initialized, boolean dirty) {
053 super(content, initialized, dirty);
054 }
055
056 public Map<?, ?> getContentAsMap(Type target) {
057 return getContentAsMap(target, null);
058 }
059
060 @SuppressWarnings({ "unchecked", "rawtypes" })
061 public Map<?, ?> getContentAsMap(Type target, Comparator comparator) {
062 Map map = null;
063 if (content != null) {
064 if (SortedMap.class.isAssignableFrom(TypeUtil.classOfType(target))) {
065 if (comparator != null)
066 map = new TreeMap(comparator);
067 else
068 map = new TreeMap();
069 }
070 else
071 map = new HashMap(content.length);
072
073 GraniteConfig config = GraniteContext.getCurrentInstance().getGraniteConfig();
074 Converters converters = config.getConverters();
075 Type[] typeArguments = null;
076 if (target instanceof ParameterizedType)
077 typeArguments = ((ParameterizedType)target).getActualTypeArguments();
078
079 for (int i = 0; i < content.length; i++) {
080 Object[] entry = (Object[])content[i];
081
082 if (typeArguments != null)
083 map.put(converters.convert(entry[0], typeArguments[0]), converters.convert(entry[1], typeArguments[1]));
084 else
085 map.put(entry[0], entry[1]);
086 }
087 }
088 return map;
089 }
090
091 public void setContentFromMap(Map<?, ?> map) {
092 if (map == null)
093 content = null;
094 else {
095 content = new Object[map.size()];
096 int index = 0;
097 for (Map.Entry<?, ?> entry : map.entrySet())
098 content[index++] = new Object[]{entry.getKey(), entry.getValue()};
099 }
100 }
101 }