1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.ws.commons.schema.extensions;
20
21 import org.apache.ws.commons.schema.XmlSchemaObject;
22 import org.w3c.dom.Node;
23
24 import javax.xml.namespace.QName;
25 import java.util.HashMap;
26 import java.util.Map;
27
28 /**
29 * The task of the extension serializer is to delegate the serilization of
30 * the extensions. The extension serializers/deserializers are retained in seperate
31 * maps and there are also two seperate references to default serializers and deserializers
32 * which would jump into action when there are no specifically attached
33 * serializers/deserializers
34 */
35 public class ExtensionRegistry {
36
37 /**
38 * Maps for the storage of extension serializers /deserializers
39 */
40 private Map extensionSerializers = new HashMap();
41 private Map extensionDeserializers = new HashMap();
42
43 /**
44 * Default serializer and serializer
45 */
46 private ExtensionSerializer defaultExtensionSerializer =new DefaultExtensionSerializer();
47 private ExtensionDeserializer defaultExtensionDeserializer = new DefaultExtensionDeserializer();
48
49
50 public ExtensionSerializer getDefaultExtensionSerializer() {
51 return defaultExtensionSerializer;
52 }
53
54 public void setDefaultExtensionSerializer(ExtensionSerializer defaultExtensionSerializer) {
55 this.defaultExtensionSerializer = defaultExtensionSerializer;
56 }
57
58 public ExtensionDeserializer getDefaultExtensionDeserializer() {
59 return defaultExtensionDeserializer;
60 }
61
62 public void setDefaultExtensionDeserializer(ExtensionDeserializer defaultExtensionDeserializer) {
63 this.defaultExtensionDeserializer = defaultExtensionDeserializer;
64 }
65
66 /**
67 * Register a deserializer with a QName
68 * @param name - the QName of the element/attribute
69 * @param deserializer - an instance of the deserializer
70 */
71 public void registerDeserializer(QName name,ExtensionDeserializer deserializer){
72 extensionDeserializers.put(name,deserializer);
73 }
74 /**
75 * Register a serializer with a Class
76 * @param classOfType - the class of the object that would be serialized
77 * @param serializer - an instance of the deserializer
78 */
79 public void registerSerializer(Class classOfType,ExtensionSerializer serializer){
80 extensionSerializers.put(classOfType,serializer);
81 }
82
83
84 /**
85 * remove the registration for a serializer with a QName
86 * @param name - the QName of the element/attribute the
87 * serializer is associated with
88 */
89 public void unregisterSerializer(QName name){
90 extensionSerializers.remove(name);
91 }
92
93 /**
94 * remove the registration for a deserializer with a QName
95 * @param classOfType - the the
96 * deserializer is associated with
97 */
98 public void unregisterDeserializer(Class classOfType){
99 extensionDeserializers.remove(classOfType);
100 }
101
102
103 /**
104 * Serialize a given extension element
105 * @param parentSchemaObject - the parent schema object. This is what
106 * would contain the extension object, probably in side its meta information
107 * map
108 * @param classOfType - The class of type to be serialized
109 * @param node - the parent DOM Node that will ultimately be serialized. The XMLSchema
110 * serialization mechanism is to create a DOM tree first and serialize it
111 */
112 public void serializeExtension(XmlSchemaObject parentSchemaObject,
113 Class classOfType,
114 Node node){
115 Object serializerObject = extensionSerializers.get(classOfType);
116 if (serializerObject!=null){
117 //perform the serialization
118 ExtensionSerializer ser = (ExtensionSerializer)serializerObject;
119 ser.serialize(parentSchemaObject,classOfType,node);
120 }else if (defaultExtensionSerializer!=null) {
121 defaultExtensionSerializer.serialize(parentSchemaObject,classOfType,node);
122 }
123
124
125 }
126
127
128 /**
129 * Deserialize a given extension element
130 * @param parentSchemaObject - the parent schema object. This is anticipated
131 * to be created already and the relevant object would contain the extension
132 * object, probably in side its meta information map
133 * @param name - The qname of the element/attribute to be deserialized. This will be used to
134 * search for the extension as well as by the deserializer if a single deserializer is
135 * registered against a number of qnames
136 * @param rawNode - the raw DOM Node read from the source. This will be the
137 * extension element itself if for an element or extension attribute itself
138 * in case of an attribute
139 */
140 public void deserializeExtension(XmlSchemaObject parentSchemaObject,
141 QName name,
142 Node rawNode){
143 Object deserializerObject = extensionDeserializers.get(name);
144 if (deserializerObject !=null){
145 //perform the serialization
146 ExtensionDeserializer deser = (ExtensionDeserializer)deserializerObject;
147 deser.deserialize(parentSchemaObject,name,rawNode);
148 } else if (defaultExtensionDeserializer!=null){
149 defaultExtensionDeserializer.deserialize(parentSchemaObject,name,rawNode);
150 }
151 }
152
153 }