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
|
/*
* 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.implementation.xyz;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.tuscany.sca.artifact.xyz.XYZ;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.ComponentType;
import org.apache.tuscany.sca.assembly.xml.PolicyAttachPointProcessor;
import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.contribution.service.ContributionReadException;
import org.apache.tuscany.sca.contribution.service.ContributionResolveException;
import org.apache.tuscany.sca.contribution.service.ContributionWriteException;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.policy.PolicyFactory;
public class ImplementationXYZProcessor implements StAXArtifactProcessor<ImplementationXYZ> {
private static final QName IMPLEMENTATION_XYZ = new QName("http://someuri", "implementation.xyz");
private AssemblyFactory assemblyFactory;
private ImplementationXYZFactory implementationXYZFactory;
private PolicyFactory policyFactory;
private PolicyAttachPointProcessor policyProcessor;
public ImplementationXYZProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) {
// Get the assembly and Java interface factories as we'll need them to
// create model objects
assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
policyFactory = modelFactories.getFactory(PolicyFactory.class);
implementationXYZFactory = modelFactories.getFactory(ImplementationXYZFactory.class);
policyProcessor = new PolicyAttachPointProcessor(policyFactory);
}
public QName getArtifactType() {
// Returns the qname of the XML element processed by this processor
return IMPLEMENTATION_XYZ;
}
public Class<ImplementationXYZ> getModelType() {
// Returns the type of model processed by this processor
return ImplementationXYZ.class;
}
public ImplementationXYZ read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
// Read an <implementation.xyz> element
ImplementationXYZ implementation = implementationXYZFactory.createImplementationXYZ();
// Read policies
policyProcessor.readPolicies(implementation, reader);
// Read the module attribute.
String anAttribute = reader.getAttributeValue(null, "anAttribute");
implementation.setAnAttribute(anAttribute);
implementation.setUnresolved(true);
// Skip to end element
while (reader.hasNext()) {
if (reader.next() == END_ELEMENT && IMPLEMENTATION_XYZ.equals(reader.getName())) {
break;
}
}
return implementation;
}
public void resolve(ImplementationXYZ implementation, ModelResolver resolver) throws ContributionResolveException {
// Resolve the xyz implementation
XYZ xyz = new XYZ();
xyz.setAnAttribute(implementation.getAnAttribute());
// First resolve its module
XYZ resolved = resolver.resolveModel(XYZ.class, xyz);
if (resolved == null){
return;
}
// use this to check that the import/export association has been created
// Check to see if we have a .componentType file describing the POJO class
ComponentType componentType = assemblyFactory.createComponentType();
componentType.setUnresolved(true);
componentType.setURI(implementation.getURI() + ".componentType");
componentType = resolver.resolveModel(ComponentType.class, componentType);
if (!componentType.isUnresolved()) {
// We have a component type description, merge it into the POJO model
implementation.getServices().addAll(componentType.getServices());
implementation.getReferences().addAll(componentType.getReferences());
implementation.getProperties().addAll(componentType.getProperties());
} else {
// We have no component type description, simply introspect the POJO and
// create a single Service for it
/*
Service service = assemblyFactory.createService();
service.setName(pojoClass.getSimpleName());
JavaInterface javaInterface;
try {
javaInterface = javaFactory.createJavaInterface(pojoClass);
} catch (InvalidInterfaceException e) {
throw new ContributionResolveException(e);
}
JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract();
interfaceContract.setInterface(javaInterface);
service.setInterfaceContract(interfaceContract);
implementation.getServices().add(service);
*/
}
// Mark the implementation resolved now
implementation.setUnresolved(false);
}
public void write(ImplementationXYZ implementation, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException {
// Write <implementation.xyz> element
writer.writeStartElement(IMPLEMENTATION_XYZ.getNamespaceURI(), IMPLEMENTATION_XYZ.getLocalPart());
policyProcessor.writePolicyAttributes(implementation, writer);
if (implementation.getAnAttribute() != null) {
writer.writeAttribute("anAttribute", implementation.getAnAttribute());
}
writer.writeEndElement();
}
}
|
