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
|
/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed 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.core.extension;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import org.apache.tuscany.core.builder.BuilderConfigException;
import org.apache.tuscany.core.builder.ContextFactory;
import org.apache.tuscany.core.builder.WireBuilder;
import org.apache.tuscany.core.context.QualifiedName;
import org.apache.tuscany.core.context.ScopeContext;
import org.apache.tuscany.core.runtime.RuntimeContext;
import org.apache.tuscany.core.system.annotation.Autowire;
import org.apache.tuscany.core.wire.SourceInvocationConfiguration;
import org.apache.tuscany.core.wire.SourceWireFactory;
import org.apache.tuscany.core.wire.TargetInvocationConfiguration;
import org.apache.tuscany.core.wire.TargetInvoker;
import org.apache.tuscany.core.wire.TargetWireFactory;
import org.osoa.sca.annotations.Init;
/**
* A base class for {@link WireBuilder} implementations
*
* @version $$Rev$$ $$Date$$
*/
public abstract class WireBuilderSupport<T extends ContextFactory<?>> implements WireBuilder {
protected RuntimeContext runtimeContext;
protected Class targetClass;
@Autowire
public void setRuntimeContext(RuntimeContext context) {
runtimeContext = context;
}
public WireBuilderSupport() {
// reflect the generic type of the subclass
Type type = this.getClass().getGenericSuperclass();
if (type instanceof ParameterizedType) {
targetClass = (Class) ((ParameterizedType) type).getActualTypeArguments()[0];
} else {
throw new AssertionError("Subclasses of " + ContextFactoryBuilderSupport.class.getName() + " must be genericized");
}
}
@Init(eager = true)
public void init() throws Exception {
runtimeContext.addBuilder(this);
}
public void connect(SourceWireFactory sourceFactory, TargetWireFactory targetFactory, Class targetType, boolean downScope,
ScopeContext targetScopeContext) throws BuilderConfigException {
if (!targetClass.isAssignableFrom(targetType)) {
return;
}
for (SourceInvocationConfiguration sourceInvocationConfig : sourceFactory.getConfiguration().getInvocationConfigurations()
.values()) {
TargetInvoker invoker = createInvoker(sourceFactory.getConfiguration()
.getTargetName(), sourceInvocationConfig.getMethod(), targetScopeContext, downScope);
sourceInvocationConfig.setTargetInvoker(invoker);
}
}
public void completeTargetChain(TargetWireFactory targetFactory, Class targetType, ScopeContext targetScopeContext)
throws BuilderConfigException {
if (!targetClass.isAssignableFrom(targetType)) {
return;
}
for (TargetInvocationConfiguration targetInvocationConfig : targetFactory.getConfiguration().getInvocationConfigurations()
.values()) {
Method method = targetInvocationConfig.getMethod();
TargetInvoker invoker = createInvoker(targetFactory.getConfiguration().getTargetName(), method, targetScopeContext, false);
targetInvocationConfig.setTargetInvoker(invoker);
}
}
/**
* Callback to create the specific <code>TargetInvoker</code> type for dispatching to the target type
*
* @param targetName the fully qualified name of the wire target
* @param operation the operation the invoker will be associated with
* @param context the scope context that manages the target context
* @param downScope whether the wire source scope is "longer" than the target
*/
protected abstract TargetInvoker createInvoker(QualifiedName targetName, Method operation, ScopeContext context, boolean downScope);
}
|
