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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*
* 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.contribution.namespace.impl;
import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.contribution.namespace.NamespaceExport;
import org.apache.tuscany.sca.contribution.namespace.NamespaceImportExportFactory;
import org.apache.tuscany.sca.contribution.processor.BaseStAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.StAXAttributeProcessor;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.monitor.Problem;
import org.apache.tuscany.sca.monitor.Problem.Severity;
/**
* Artifact processor for Namespace export
*
* @version $Rev$ $Date$
*/
public class NamespaceExportProcessor extends BaseStAXArtifactProcessor implements StAXArtifactProcessor<NamespaceExport> {
private static final String SCA11_NS = "http://docs.oasis-open.org/ns/opencsa/sca/200912";
private static final QName EXPORT = new QName(SCA11_NS, "export");
private static final String NAMESPACE = "namespace";
private final NamespaceImportExportFactory factory;
private final AssemblyFactory extensionFactory;
private final StAXArtifactProcessor<Object> extensionProcessor;
private final StAXAttributeProcessor<Object> attributeProcessor;
public NamespaceExportProcessor(FactoryExtensionPoint modelFactories,
StAXArtifactProcessor<Object> extensionProcessor,
StAXAttributeProcessor<Object> attributeProcessor) {
this.factory = modelFactories.getFactory(NamespaceImportExportFactory.class);
this.extensionFactory = modelFactories.getFactory(AssemblyFactory.class);
this.extensionProcessor = extensionProcessor;
this.attributeProcessor = attributeProcessor;
}
/**
* Report a warning.
*
* @param problems
* @param message
* @param model
*/
private void error(Monitor monitor, String message, Object model, Object... messageParameters) {
if (monitor != null) {
Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-namespace-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters);
monitor.problem(problem);
}
}
public QName getArtifactType() {
return EXPORT;
}
public Class<NamespaceExport> getModelType() {
return NamespaceExport.class;
}
/**
* Process <export namespace=""/>
*/
public NamespaceExport read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException {
NamespaceExport namespaceExport = this.factory.createNamespaceExport();
QName element = null;
try {
while (reader.hasNext()) {
int event = reader.getEventType();
switch (event) {
case START_ELEMENT:
element = reader.getName();
// Read <export>
if (EXPORT.equals(element)) {
String ns = reader.getAttributeValue(null, NAMESPACE);
if (ns == null) {
error(context.getMonitor(), "AttributeNameSpaceMissing", reader);
//throw new ContributionReadException("Attribute 'namespace' is missing");
} else {
namespaceExport.setNamespace(ns);
}
readExtendedAttributes(reader, namespaceExport, attributeProcessor, extensionFactory, context);
} else {
//read extended elements
Object ext = extensionProcessor.read(reader, context);
if (namespaceExport != null) {
namespaceExport.getExtensions().add(ext);
}
}
break;
case XMLStreamConstants.END_ELEMENT:
if (EXPORT.equals(reader.getName())) {
return namespaceExport;
}
break;
}
// Read the next element
if (reader.hasNext()) {
reader.next();
}
}
}
catch (XMLStreamException e) {
ContributionReadException ex = new ContributionReadException(e);
error(context.getMonitor(), "XMLStreamException", reader, ex);
}
return namespaceExport;
}
public void write(NamespaceExport namespaceExport, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException, XMLStreamException {
// Write <export>
writer.writeStartElement(EXPORT.getNamespaceURI(), EXPORT.getLocalPart());
if (namespaceExport.getNamespace() != null) {
writer.writeAttribute(NAMESPACE, namespaceExport.getNamespace());
}
writeExtendedAttributes(writer, namespaceExport, attributeProcessor, context);
// handle extended elements
for (Object ext : namespaceExport.getExtensions()) {
extensionProcessor.write(ext, writer, context);
}
writer.writeEndElement();
}
public void resolve(NamespaceExport namespaceExport, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException {
if (namespaceExport.getNamespace() != null)
// Initialize the export's resolver
namespaceExport.setModelResolver(new NamespaceExportModelResolver(resolver));
}
}
|
