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
|
/*
* 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.assembly.xml;
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.Binding;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.ComponentReference;
import org.apache.tuscany.sca.assembly.ComponentService;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.assembly.EndpointReference;
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.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
/**
*
*/
public class EndpointReferenceProcessor extends BaseAssemblyProcessor implements StAXArtifactProcessor<EndpointReference> {
private final static String ENDPOINT_REFERENCE = "endpointReference";
private final static QName ENDPOINT_REFERENCE_QNAME = new QName(Constants.SCA11_TUSCANY_NS, ENDPOINT_REFERENCE);
private ExtensionPointRegistry registry;
public EndpointReferenceProcessor(ExtensionPointRegistry registry,
StAXArtifactProcessor extensionProcessor,
StAXAttributeProcessor extensionAttributeProcessor) {
super(modelFactories(registry), extensionProcessor);
this.registry = registry;
}
/**
* Returns the model factory extension point to use.
*
* @param extensionPoints
* @return
*/
private static FactoryExtensionPoint modelFactories(ExtensionPointRegistry extensionPoints) {
return extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
}
public QName getArtifactType() {
return ENDPOINT_REFERENCE_QNAME;
}
public EndpointReference read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException {
EndpointReference endpointReference = assemblyFactory.createEndpointReference();
if (reader.getEventType() == XMLStreamConstants.START_DOCUMENT) {
reader.nextTag();
}
Object model = extensionProcessor.read(reader, context);
if (model instanceof Composite) {
Composite composite = (Composite)model;
Component component = composite.getComponents().get(0);
ComponentReference reference = component.getReferences().get(0);
Binding binding = reference.getBindings().get(0);
endpointReference.setComponent(component);
endpointReference.setReference(reference);
reference.getEndpointReferences().add(endpointReference);
endpointReference.setBinding(binding);
// set up the EPR so that resolution will happen
// at wire creation time if needs be
Endpoint endpoint = assemblyFactory.createEndpoint();
endpointReference.setTargetEndpoint(endpoint);
if (reference.getTargets().size() > 0){
// create a dummy endpoint with the URI set so that
// the endpoint registry will be consulted
endpoint.setUnresolved(true);
endpoint.setURI(reference.getTargets().get(0).getName());
endpointReference.setStatus(EndpointReference.Status.WIRED_TARGET_NOT_FOUND);
endpointReference.setUnresolved(true);
} else {
endpoint.setUnresolved(false);
endpoint.setBinding(reference.getBindings().get(0));
endpointReference.setStatus(EndpointReference.Status.RESOLVED_BINDING);
endpointReference.setUnresolved(false);
}
}
return endpointReference;
}
public void write(EndpointReference model, XMLStreamWriter writer, ProcessorContext context) throws ContributionWriteException, XMLStreamException {
extensionProcessor.write(wrap(model), writer, context);
}
private Composite wrap(EndpointReference endpointReference) {
try {
Composite composite = assemblyFactory.createComposite();
composite.setName(ENDPOINT_REFERENCE_QNAME);
composite.setLocal(false);
Component component = (Component)endpointReference.getComponent().clone();
composite.getComponents().add(component);
component.getReferences().clear();
component.getServices().clear();
ComponentReference reference = (ComponentReference)endpointReference.getReference().clone();
component.getReferences().add(reference);
reference.getBindings().clear();
Binding binding = (Binding)endpointReference.getBinding().clone();
reference.getBindings().add(binding);
//reference.setInterfaceContract(endpointReference.getInterfaceContract());
if (endpointReference.getStatus() != EndpointReference.Status.RESOLVED_BINDING){
ComponentService service = assemblyFactory.createComponentService();
service.setName(endpointReference.getTargetEndpoint().getURI());
reference.getTargets().clear();
reference.getTargets().add(service);
}
return composite;
} catch (CloneNotSupportedException e) {
return null;
}
}
public Class<EndpointReference> getModelType() {
return EndpointReference.class;
}
public void resolve(EndpointReference model, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException {
}
}
|
