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
|
/*
* 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.builder.impl;
import java.util.List;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.ComponentReference;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.assembly.CompositeReference;
import org.apache.tuscany.sca.assembly.Implementation;
import org.apache.tuscany.sca.assembly.Reference;
import org.apache.tuscany.sca.assembly.SCABinding;
import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
import org.apache.tuscany.sca.definitions.Definitions;
import org.apache.tuscany.sca.monitor.Monitor;
/**
* A composite builder that handles the creation of promoted composite services.
*
* @version $Rev$ $Date$
*/
public class ComponentReferencePromotionBuilderImpl implements CompositeBuilder {
private AssemblyFactory assemblyFactory;
public ComponentReferencePromotionBuilderImpl(AssemblyFactory assemblyFactory) {
this.assemblyFactory = assemblyFactory;
}
public void build(Composite composite, Definitions definitions, Monitor monitor) throws CompositeBuilderException {
configureNestedCompositeReferences(composite, monitor);
}
public String getID() {
return "org.apache.tuscany.sca.assembly.builder.ComponentReferencePromotionBuilder";
}
/**
* Push down reference configuration into nested composites.
*
* @param composite
* @param problems
*/
private void configureNestedCompositeReferences(Composite composite, Monitor monitor) {
// Process nested composites recursively
for (Component component : composite.getComponents()) {
Implementation implementation = component.getImplementation();
if (implementation instanceof Composite) {
configureNestedCompositeReferences((Composite)implementation, monitor);
}
}
// Process component references declared on components in this composite
for (Component component : composite.getComponents()) {
Implementation implementation = component.getImplementation();
if (implementation instanceof Composite) {
for (ComponentReference componentReference : component.getReferences()) {
Reference implReference = componentReference.getReference();
if (implReference != null && implReference instanceof CompositeReference) {
// If the component reference is wired, it is a promotion override
if (!componentReference.getEndpointReferences().isEmpty()) {
componentReference.setPromotionOverride(true);
}
// If the component reference is a promotion override, override the
// configuration of the promoted reference
if (componentReference.isPromotionOverride()) {
CompositeReference compositeReference = (CompositeReference)implReference;
List<ComponentReference> promotedReferences =
ReferenceConfigurationUtil.getPromotedComponentReferences(compositeReference);
for (ComponentReference promotedReference : promotedReferences) {
ReferenceConfigurationUtil.reconcileReferenceBindings(
componentReference, promotedReference, assemblyFactory, monitor);
if (componentReference.getInterfaceContract() != null && // can be null in unit tests
componentReference.getInterfaceContract().getCallbackInterface() != null) {
SCABinding scaCallbackBinding = promotedReference.getCallbackBinding(SCABinding.class);
if (promotedReference.getCallback() != null) {
promotedReference.getCallback().getBindings().clear();
} else {
promotedReference.setCallback(assemblyFactory.createCallback());
}
if (scaCallbackBinding != null) {
promotedReference.getCallback().getBindings().add(scaCallbackBinding);
}
if (componentReference.getCallback() != null) {
promotedReference.getCallback().getBindings().addAll(componentReference
.getCallback().getBindings());
}
}
/* TODO - let endpoint references worry about target service
// Wire the promoted reference to the actual non-composite component services
if (promotedReference.getMultiplicity() == Multiplicity.ONE_ONE) {
// promotedReference.getTargets().clear();
}
for (ComponentService target : componentReference.getTargets()) {
if (target.getService() instanceof CompositeService) {
// Wire to the actual component service
// promoted by a composite service
CompositeService compositeService = (CompositeService)target.getService();
// Find the promoted component service
ComponentService componentService =
ServiceConfigurationUtil.getPromotedComponentService(compositeService);
if (componentService != null) {
promotedReference.getTargets().add(componentService);
}
} else {
// Wire to a non-composite target service
promotedReference.getTargets().add(target);
}
}
*/
}
}
}
}
} else {
/* TODO - let endpoint references worry about target servicep
for (ComponentReference componentReference : component.getReferences()) {
// Wire the component reference to the actual
// non-composite component services
List<ComponentService> targets = componentReference.getTargets();
for (int i = 0, n = targets.size(); i < n; i++) {
ComponentService target = targets.get(i);
if (target.getService() instanceof CompositeService) {
// Wire to the actual component service
// promoted by a composite service
CompositeService compositeService = (CompositeService)target.getService();
ComponentService componentService = compositeService.getPromotedService();
if (componentService != null) {
targets.set(i, componentService);
}
}
}
}
*/
}
}
}
}
|
