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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* 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.core.assembly.impl;
import java.lang.reflect.InvocationTargetException;
import java.util.List;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.assembly.Reference;
import org.apache.tuscany.sca.core.assembly.CompositeActivator;
import org.apache.tuscany.sca.core.invocation.impl.InvocationChainImpl;
import org.apache.tuscany.sca.endpointresolver.EndpointResolver;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.InvocationChain;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
import org.apache.tuscany.sca.runtime.EndpointReference;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
import org.apache.tuscany.sca.runtime.RuntimeWire;
import org.oasisopen.sca.ServiceUnavailableException;
/**
* @version $Rev$ $Date$
*/
public class EndpointWireImpl implements RuntimeWire {
private Endpoint endpoint;
private CompositeActivatorImpl compositeActivator;
private EndpointResolver endpointResolver;
private EndpointReference source;
private RuntimeWire wire;
private InvocationChain binidngInvocationChain;
/**
* @param endpoint
*/
public EndpointWireImpl(Endpoint endpoint, CompositeActivator compositeActivator) {
super();
this.endpoint = endpoint;
// TODO - improve the SPI to get rid of this cast
this.compositeActivator = (CompositeActivatorImpl)compositeActivator;
// store source configuration as we have most of this now. We don't though know what the
// target is yet.
Reference componentTypeRef = endpoint.getSourceComponentReference().getReference();
InterfaceContract sourceContract =
componentTypeRef == null ? endpoint.getSourceComponentReference().getInterfaceContract() : componentTypeRef.getInterfaceContract();
sourceContract = sourceContract.makeUnidirectional(false);
source = new EndpointReferenceImpl((RuntimeComponent)endpoint.getSourceComponent(),
endpoint.getSourceComponentReference(),
null,
sourceContract);
RuntimeComponentReference runtimeRef = ((RuntimeComponentReference)endpoint.getSourceComponentReference());
endpointResolver = runtimeRef.getEndpointResolver(endpoint);
}
public synchronized List<InvocationChain> getInvocationChains() {
// where late binding happens. Find the endpoint provider and
// ask it to do the endpoint resolution.
if (endpoint.isUnresolved()){
// this method should locate a viable target service and complete the
// endpoint configuration
endpointResolver.resolve();
if (endpoint.isUnresolved()){
throw new ServiceUnavailableException("Unable to resolve service for component: " +
endpoint.getSourceComponent().getName() +
" reference: " +
endpoint.getSourceComponentReference().getName() +
" target: " +
endpoint.getTargetName());
}
}
if (wire == null){
RuntimeComponentReference runtimeRef = ((RuntimeComponentReference)endpoint.getSourceComponentReference());
// add the resolved binding into the reference
runtimeRef.getBindings().add(endpoint.getSourceBinding());
// add a binding provider into the reference for the resolved binding
compositeActivator.addReferenceBindingProviderForEndpoint(endpoint);
// extract the binding provider that has been created
ReferenceBindingProvider bindingProvider = runtimeRef.getBindingProvider(endpoint.getSourceBinding());
// start the binding provider
bindingProvider.start();
// create the wire
compositeActivator.addReferenceWireForEndpoint(endpoint);
// extract the wire that has been created
wire = runtimeRef.getRuntimeWire(endpoint.getSourceBinding());
}
return wire.getInvocationChains();
}
public InvocationChain getInvocationChain(Operation operation) {
if (wire ==null){
return null;
} else {
return wire.getInvocationChain(operation);
}
}
public Object invoke(Message msg) throws InvocationTargetException {
// not called as the endpoint wire only appears on the reference side
return null;
}
public Object invoke(Operation operation, Object[] args) throws InvocationTargetException {
// not called as the endpoint wire only appears on the reference side
return null;
}
public Object invoke(Operation operation, Message msg) throws InvocationTargetException {
// not called as the endpoint wire only appears on the reference side
return null;
}
public EndpointReference getSource() {
return source;
}
public EndpointReference getTarget() {
return null;
}
public void setTarget(EndpointReference target) {
}
public void rebuild() {
}
public synchronized InvocationChain getBindingInvocationChain() {
if (binidngInvocationChain == null) {
if (source instanceof RuntimeComponentReference) {
binidngInvocationChain = new InvocationChainImpl(null, null, true);
} else {
binidngInvocationChain = new InvocationChainImpl(null, null, false);
}
}
return binidngInvocationChain;
}
// TODO: TUSCANY-2580: give RuntimeComponentReferenceImpl a way to get at the endpoint
public Endpoint getEndpoint() {
return endpoint;
}
/**
* @see java.lang.Object#clone()
*/
@Override
public Object clone() throws CloneNotSupportedException {
EndpointWireImpl copy = (EndpointWireImpl)super.clone();
return copy;
}
}
|