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
|
/*
* 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 javax.xml.bind.JAXBContext;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.ValidationEvent;
import javax.xml.bind.util.ValidationEventCollector;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.databinding.BaseTransformer;
import org.apache.tuscany.sca.databinding.PullTransformer;
import org.apache.tuscany.sca.databinding.TransformationContext;
import org.apache.tuscany.sca.databinding.TransformationException;
import org.w3c.dom.Node;
/**
*
* @version $Rev$ $Date$
*/
public class Node2JAXB extends BaseTransformer<Node, Object> implements PullTransformer<Node, Object> {
private JAXBContextHelper contextHelper;
public Node2JAXB(ExtensionPointRegistry registry) {
contextHelper = JAXBContextHelper.getInstance(registry);
}
public Object transform(Node source, TransformationContext context) {
ValidationEventCollector validationEventCollector = new ValidationEventCollector();
Object response = null;
if (source == null)
return null;
try {
JAXBContext jaxbContext = contextHelper.createJAXBContext(context, false);
Object result;
// TUSCANY-3791
synchronized(source){
/* some debug code
System.setProperty("jaxb.debug", "true");
unmarshaller.setListener(new DebugListener());
*/
Unmarshaller unmarshaller = contextHelper.getUnmarshaller(jaxbContext);
try {
validationEventCollector.reset();
unmarshaller.setEventHandler(validationEventCollector);
result = unmarshaller.unmarshal(source, JAXBContextHelper.getJavaType(context.getTargetDataType()));
} finally {
contextHelper.releaseJAXBUnmarshaller(jaxbContext, unmarshaller);
}
}
response = JAXBContextHelper.createReturnValue(jaxbContext, context.getTargetDataType(), result);
} catch (Exception e) {
throw new TransformationException(e);
}
if (validationEventCollector.hasEvents()){
String validationErrors = "";
for(ValidationEvent event : validationEventCollector.getEvents()){
validationErrors += "Event: " + event.getMessage() + " ";
}
throw new TransformationException(validationErrors);
}
return response;
}
@Override
protected Class<Node> getSourceType() {
return Node.class;
}
@Override
protected Class<Object> getTargetType() {
return Object.class;
}
@Override
public int getWeight() {
return 30;
}
@Override
public String getTargetDataBinding() {
return JAXBDataBinding.NAME;
}
/* some debug code
class DebugListener extends Unmarshaller.Listener {
public void beforeUnmarshal(Object target, Object parent) {
}
public void afterUnmarshal(Object target, Object parent) {
}
}
*/
}
|
