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
|
/**
*
* 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.config.processor;
import java.util.List;
import org.apache.tuscany.core.config.ConfigurationLoadException;
import org.apache.tuscany.core.config.InvalidMetaDataException;
import org.apache.tuscany.core.config.JavaIntrospectionHelper;
import org.apache.tuscany.model.assembly.AssemblyFactory;
import org.apache.tuscany.model.assembly.ComponentType;
import org.apache.tuscany.model.assembly.Scope;
import org.apache.tuscany.model.assembly.Service;
import org.apache.tuscany.model.types.java.JavaServiceContract;
import org.osoa.sca.annotations.Callback;
/**
* Processes the {@link org.osoa.sca.annotations.Service} annotation
*
* @version $$Rev$$ $$Date$$
*/
public class ServiceProcessor extends ImplementationProcessorSupport {
public ServiceProcessor() {
}
public ServiceProcessor(AssemblyFactory factory) {
super(factory);
}
@Override
public void visitClass(Class<?> clazz, ComponentType type) throws ConfigurationLoadException {
if (!clazz.isInterface()) {
processImplementation(clazz,type);
} else {
processInterface(clazz, type);
}
}
private void processImplementation(Class<?> clazz, ComponentType type) throws ConfigurationLoadException {
// visiting the base implementation class
List<org.apache.tuscany.model.assembly.Service> services = type.getServices();
Class[] interfaces = clazz.getInterfaces();
org.osoa.sca.annotations.Service serviceAnnotation = clazz.getAnnotation(org.osoa.sca.annotations.Service.class);
if (interfaces.length == 0) {
// no interfaces so the class is the service
addService(services, clazz);
} else if (serviceAnnotation == null && interfaces.length == 1) {
// the impl has one interface, assign it to be the service
addService(services, interfaces[0]);
} else {
// visiting the implementation class
if (serviceAnnotation == null) {
return;
}
Class<?>[] serviceInterfaces = serviceAnnotation.interfaces();
Class<?> value = serviceAnnotation.value();
if (serviceInterfaces.length > 0) {
if (!Void.class.equals(value)) {
InvalidMetaDataException e = new InvalidMetaDataException("Both interfaces and value specified in @Service on ");
e.setIdentifier(clazz.getName());
throw e;
}
for (Class<?> intf : interfaces) {
addService(services, intf);
}
} else if (!Void.class.equals(value)) {
addService(services, value);
}
}
}
@Override
public void visitEnd(Class<?> clazz, ComponentType type) throws ConfigurationLoadException {
List<Service> services = type.getServices();
if (services.size() == 0) {
// no services processed so the class is the service
addService(services, clazz);
}
}
private void processInterface(Class<?> clazz, ComponentType type) {
List<org.apache.tuscany.model.assembly.Service> services = type.getServices();
// the interface is a remotable service, add it
org.osoa.sca.annotations.Remotable remotableAnnotation = clazz.getAnnotation(org.osoa.sca.annotations.Remotable.class);
if (remotableAnnotation != null) {
// check to see if service added previously b/c it was specified on @Service
if (ProcessorHelper.getService(clazz, services) == null) {
addService(services, clazz);
}
}
}
private void addService(List<Service> services, Class<?> serviceClass) {
//FIXME how do we support specifying remotable?
JavaServiceContract javaInterface = factory.createJavaServiceContract();
javaInterface.setInterface(serviceClass);
org.osoa.sca.annotations.Scope scopeAnnotation = serviceClass.getAnnotation(org.osoa.sca.annotations.Scope.class);
Scope scope;
if (scopeAnnotation == null) {
scope = Scope.INSTANCE;
} else {
scope = ProcessorHelper.getScope(scopeAnnotation);
}
javaInterface.setScope(scope);
Callback callback = serviceClass.getAnnotation(Callback.class);
if (callback != null && !Void.class.equals(callback.value())) {
javaInterface.setCallbackInterface(callback.value());
}
String name = JavaIntrospectionHelper.getBaseName(serviceClass);
Service service = factory.createService();
service.setName(name);
service.setServiceContract(javaInterface);
services.add(service);
}
}
|
