1 /**
2 * This file Copyright (c) 2008-2013 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 info.magnolia.content2bean.TypeMapping;
40 import info.magnolia.objectfactory.ComponentProvider;
41
42 import org.slf4j.Logger;
43 import org.slf4j.LoggerFactory;
44
45 import java.lang.reflect.Method;
46 import java.util.Map;
47 import java.util.Map.Entry;
48
49 /**
50 * A transformer which "hides" a collection node. Extend or pass the type and node name in the constructor.
51 */
52 public class CollectionPropertyHidingTransformer extends Content2BeanTransformerImpl {
53
54 private static Logger log = LoggerFactory.getLogger(CollectionPropertyHidingTransformer.class);
55
56 private final Class beanClass;
57 private final String collectionName;
58
59 private TypeDescriptor type;
60
61 private PropertyTypeDescriptor propertyDescriptor;
62
63 private Method addMethod;
64
65 private TypeDescriptor propertyType;
66
67 public CollectionPropertyHidingTransformer(Class<?> beanClass, String collectionName) {
68 super();
69 this.beanClass = beanClass;
70 this.collectionName = collectionName;
71
72 // TODO won't work since this.typeMapping is @Inject or passed, we don't have it yet.
73 // type = getTypeMapping().getTypeDescriptor(beanClass);
74 // propertyDescriptor = type.getPropertyTypeDescriptor(collectionName);
75 // addMethod = propertyDescriptor.getAddMethod();
76 // propertyType = propertyDescriptor.getCollectionEntryType();
77 }
78
79 @Override
80 protected TypeDescriptor onResolveType(TypeMapping typeMapping, TransformationState state, TypeDescriptor resolvedType, ComponentProvider componentProvider){
81 // lazy init, we need TypeMapping
82 if (type == null) {
83 type = typeMapping.getTypeDescriptor(beanClass);
84 propertyDescriptor = type.getPropertyTypeDescriptor(collectionName, typeMapping);
85 addMethod = propertyDescriptor.getAddMethod();
86 propertyType = propertyDescriptor.getCollectionEntryType();
87 }
88
89 if(resolvedType == null){
90 // if we are transforming a child node which does not define
91 // the class to be used, return the type of the collection entries
92
93 // if the parent type is of the handled type
94 // this is the case when we are transforming children nodes)
95 if(state.getLevel()>1 && state.getCurrentType().equals(type)){
96 // make it the default
97 // use property descriptor
98 resolvedType = propertyType;
99 }
100 }
101 return resolvedType;
102 }
103
104 @Override
105 public void setProperty(TypeMapping typeMapping, TransformationState state, PropertyTypeDescriptor descriptor, Map<String, Object> values) {
106 if(descriptor.getName().equals(collectionName)){
107 Object bean = state.getCurrentBean();
108
109 for (Entry<String, Object> entry : values.entrySet()) {
110 String key = entry.getKey();
111 Object value = entry.getValue();
112
113 if(propertyType.getType().isInstance(value) ){
114 try {
115 if(propertyDescriptor.isCollection()){
116 addMethod.invoke(bean, new Object[]{value});
117 }
118 else{
119 addMethod.invoke(bean, new Object[]{key, value});
120 }
121 } catch (Exception e) {
122 log.error("Can't call adder method " + propertyDescriptor.getAddMethod(), e);
123 }
124 }
125 }
126 }
127 else{
128 super.setProperty(typeMapping, state, descriptor, values);
129 }
130 }
131 }