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 */
022package org.granite.messaging.amf.types;
023
024import java.io.Externalizable;
025import java.lang.reflect.Type;
026import java.util.Collection;
027import java.util.Map;
028
029import org.granite.messaging.amf.io.util.Property;
030import org.granite.util.TypeUtil;
031
032/**
033 * @author Franck WOLFF
034 */
035public class AMFSpecialValueFactory {
036        
037        protected final AMFVectorObjectAliaser vectorObjectAlias;
038        
039        public AMFSpecialValueFactory() {
040                this(null);
041        }
042
043        public AMFSpecialValueFactory(AMFVectorObjectAliaser vectorObjectAlias) {
044                this.vectorObjectAlias = (vectorObjectAlias != null ? vectorObjectAlias : new AMFBasicVectorObjectAliaser());
045        }
046
047        public Object createSpecialValue(Property property, Object o) {
048        if (o != null && !(o instanceof Externalizable)) {
049                if (o instanceof Collection || (o.getClass().isArray() && o.getClass().getComponentType() != Byte.TYPE)) {
050                        if (property.isAnnotationPresent(AMFVectorInt.class))
051                                return new AMFVectorIntValue(o, property.getAnnotation(AMFVectorInt.class).fixed());
052                        if (property.isAnnotationPresent(AMFVectorNumber.class))
053                                return new AMFVectorNumberValue(o, property.getAnnotation(AMFVectorNumber.class).fixed());
054                        if (property.isAnnotationPresent(AMFVectorUint.class))
055                                return new AMFVectorUintValue(o, property.getAnnotation(AMFVectorUint.class).fixed());
056                        if (property.isAnnotationPresent(AMFVectorObject.class)) {
057                                AMFVectorObject annotation = property.getAnnotation(AMFVectorObject.class);
058                                String type = annotation.type();
059                                if (type == null || type.length() == 0) {
060                                        Type propertyType = property.getType();
061                                        Class<?> componentClass = TypeUtil.componentClassOfType(propertyType);
062                                        type = vectorObjectAlias.aliasFor(componentClass);
063                                }
064                                return new AMFVectorObjectValue(o, type, annotation.fixed());
065                        }
066                }
067                else if (o instanceof Map && property.isAnnotationPresent(AMFDictionary.class))
068                        return new AMFDictionaryValue((Map<?, ?>)o, property.getAnnotation(AMFDictionary.class).weakKeys());
069        }
070        
071        return o;
072        }
073}