1 /**
2 * This file Copyright (c) 2008-2010 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.content2bean.impl;
35
36 import info.magnolia.content2bean.PropertyTypeDescriptor;
37 import info.magnolia.content2bean.TransformationState;
38 import info.magnolia.content2bean.TypeDescriptor;
39 import org.slf4j.Logger;
40 import org.slf4j.LoggerFactory;
41
42 import java.lang.reflect.Method;
43 import java.util.Map;
44 import java.util.Map.Entry;
45
46 /**
47 * A transformer which "hides" a collection node. Extend or pass the type and node name in the constructor.
48 *
49 * @author pbracher
50 * @version $Revision: 32667 $ ($Author: gjoseph $)
51 */
52 public class CollectionPropertyHidingTransformer extends Content2BeanTransformerImpl {
53
54 private static Logger log = LoggerFactory.getLogger(CollectionPropertyHidingTransformer.class);
55
56 protected String collectionName;
57
58 protected TypeDescriptor type;
59
60 protected PropertyTypeDescriptor propertyDescriptor;
61
62 protected Method addMethod;
63
64 protected TypeDescriptor propertyType;
65
66 public CollectionPropertyHidingTransformer(Class<?> beanClass, String collectionName) {
67 this.collectionName = collectionName;
68 type = getTypeMapping().getTypeDescriptor(beanClass);
69 propertyDescriptor = type.getPropertyTypeDescriptor(collectionName);
70 addMethod = propertyDescriptor.getAddMethod();
71 propertyType = propertyDescriptor.getCollectionEntryType();
72 }
73
74 protected TypeDescriptor onResolveType(TransformationState state, TypeDescriptor resolvedType){
75 if(resolvedType == null){
76 // if we are transforming a child node which does not define
77 // the class to be used, return the type of the collection entries
78
79 // if the parent type is of the handled type
80 // this is the case when we are transforming children nodes)
81 if(state.getLevel()>1 && state.getCurrentType().equals(type)){
82 // make it the default
83 // use property descriptor
84 resolvedType = propertyType;
85 }
86 }
87 return resolvedType;
88 }
89
90 public void setProperty(TransformationState state, PropertyTypeDescriptor descriptor, Map<String, Object> values) {
91 if(descriptor.getName().equals(collectionName)){
92 Object bean = state.getCurrentBean();
93
94 for (Entry<String, Object> entry : values.entrySet()) {
95 String key = entry.getKey();
96 Object value = entry.getValue();
97
98 if(propertyType.getType().isInstance(value) ){
99 try {
100 if(propertyDescriptor.isCollection()){
101 addMethod.invoke(bean, new Object[]{value});
102 }
103 else{
104 addMethod.invoke(bean, new Object[]{key, value});
105 }
106 } catch (Exception e) {
107 log.error("Can't call adder method " + propertyDescriptor.getAddMethod(), e);
108 }
109 }
110 }
111 }
112 else{
113 super.setProperty(state, descriptor, values);
114 }
115 }
116 }