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.ParameterizedType;
025 import java.lang.reflect.Type;
026 import java.util.Comparator;
027 import java.util.HashSet;
028 import java.util.Set;
029 import java.util.SortedSet;
030 import java.util.TreeSet;
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 ExternalizablePersistentSet extends AbstractExternalizablePersistentCollection {
041
042 private static final long serialVersionUID = 1L;
043
044 public ExternalizablePersistentSet() {
045 }
046
047 public ExternalizablePersistentSet(Set<?> content, boolean initialized, boolean dirty) {
048 super(null, initialized, dirty);
049 setContentFromSet(content);
050 }
051
052 public ExternalizablePersistentSet(Object[] content, boolean initialized, boolean dirty) {
053 super(content, initialized, dirty);
054 }
055
056 public Set<?> getContentAsSet(Type target) {
057 return getContentAsSet(target, null);
058 }
059
060 @SuppressWarnings({ "unchecked", "rawtypes" })
061 public Set<?> getContentAsSet(Type target, Comparator comparator) {
062 Set set = null;
063 if (content != null) {
064 if (SortedSet.class.isAssignableFrom(TypeUtil.classOfType(target))) {
065 if (comparator != null)
066 set = new TreeSet(comparator);
067 else
068 set = new TreeSet();
069 }
070 else
071 set = new HashSet(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 (Object o : content) {
080 if (typeArguments != null)
081 set.add(converters.convert(o, typeArguments[0]));
082 else
083 set.add(o);
084 }
085 }
086 return set;
087 }
088
089 public void setContentFromSet(Set<?> set) {
090 content = (set != null ? set.toArray() : null);
091 }
092 }