1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.databinding.jaxb;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.annotation.XmlElementDecl;
import javax.xml.bind.annotation.XmlRegistry;
import javax.xml.bind.annotation.XmlType;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.databinding.TransformationContext;
import org.apache.tuscany.sca.databinding.TransformationException;
import org.apache.tuscany.sca.databinding.WrapperHandler;
import org.apache.tuscany.sca.interfacedef.util.ElementInfo;
/**
* JAXB WrapperHandler implementation
*/
public class JAXBWrapperHandler implements WrapperHandler<JAXBElement<?>> {
public JAXBElement<?> create(ElementInfo element, TransformationContext context) {
try {
// FIXME: How do we map the global element to a factory?
String packageName = null;
String factoryClassName = packageName + ".ObjectFactory";
ClassLoader classLoader = context != null ? context.getClassLoader() : null;
if (classLoader == null) {
classLoader = Thread.currentThread().getContextClassLoader();
}
Class<?> factoryClass = Class.forName(factoryClassName, true, classLoader);
assert factoryClass.isAnnotationPresent(XmlRegistry.class);
Object factory = factoryClass.newInstance();
QName elementName = element.getQName();
Method method = null;
for (Method m : factoryClass.getMethods()) {
XmlElementDecl xmlElement = m.getAnnotation(XmlElementDecl.class);
QName name = new QName(xmlElement.namespace(), xmlElement.name());
if (xmlElement != null && name.equals(elementName)) {
method = m;
break;
}
}
if (method != null) {
Class typeClass = method.getParameterTypes()[0];
Object value = typeClass.newInstance();
return (JAXBElement<?>)method.invoke(factory, new Object[] {value});
} else {
throw new TransformationException("ObjectFactory cannot be resolved.");
}
} catch (Exception e) {
throw new TransformationException(e);
}
}
public void setChild(JAXBElement<?> wrapper, int i, ElementInfo childElement, Object value) {
Object wrapperValue = wrapper.getValue();
Class<?> wrapperClass = wrapperValue.getClass();
XmlType xmlType = wrapperClass.getAnnotation(XmlType.class);
String[] properties = xmlType.propOrder();
String property = properties[i];
try {
for (Method m : wrapperClass.getMethods()) {
if (m.getName().equals("set" + capitalize(property))) {
m.invoke(wrapperValue, new Object[] {value});
return;
}
}
} catch (Throwable e) {
throw new TransformationException(e);
}
}
private static String capitalize(String name) {
char first = Character.toUpperCase(name.charAt(0));
return first + name.substring(1);
}
/**
* @see org.apache.tuscany.sca.databinding.WrapperHandler#getChildren(java.lang.Object)
*/
public List getChildren(JAXBElement<?> wrapper) {
Object wrapperValue = wrapper.getValue();
Class<?> wrapperClass = wrapperValue.getClass();
XmlType xmlType = wrapperClass.getAnnotation(XmlType.class);
String[] properties = xmlType.propOrder();
List<Object> elements = new ArrayList<Object>();
for (String p : properties) {
try {
Method method = wrapperClass.getMethod("get" + capitalize(p), (Class[])null);
Object value = method.invoke(wrapperValue, (Object[])null);
elements.add(value);
} catch (Throwable e) {
throw new TransformationException(e);
}
}
return elements;
}
}
|
