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
|
/*
* 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.container.spring.impl;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.apache.tuscany.spi.component.TargetNotFoundException;
import org.apache.tuscany.spi.wire.InvocationRuntimeException;
import org.apache.tuscany.spi.wire.Message;
import org.apache.tuscany.spi.wire.TargetInvoker;
import org.springframework.beans.BeansException;
/**
* Dispatches to an operation on a Spring bean. Since Spring manages bean lifecycle and scope through resolution in the
* target proxy, the invoker can safely cache the target proxy.
*
* @version $$Rev$$ $$Date$$
*/
public class SpringInvoker implements TargetInvoker {
private SpringCompositeComponent component;
// default to true since Spring handles resolution
private boolean cacheable = true;
private String beanName;
private Method method;
// caching is thread-safe since Spring handles resolution
private Object bean;
public SpringInvoker(String beanName, Method method, SpringCompositeComponent component) {
this.beanName = beanName;
this.method = method;
this.component = component;
}
public Object invokeTarget(final Object object, final short sequence) throws InvocationTargetException {
if (bean == null) {
try {
bean = component.getBean(Object.class, beanName);
if (bean == null) {
throw new InvocationTargetException(new TargetNotFoundException(beanName));
}
} catch (BeansException e) {
throw new InvocationTargetException(e);
}
}
try {
if (object != null && !object.getClass().isArray()) {
return method.invoke(bean, object);
} else {
return method.invoke(bean, (Object[]) object);
}
} catch (IllegalAccessException e) {
throw new InvocationTargetException(e);
}
}
public Message invoke(Message msg) throws InvocationRuntimeException {
try {
Object resp = invokeTarget(msg.getBody(), TargetInvoker.NONE);
msg.setBody(resp);
} catch (InvocationTargetException e) {
msg.setBodyWithFault(e.getCause());
} catch (Throwable e) {
msg.setBodyWithFault(e);
}
return msg;
}
public boolean isCacheable() {
return cacheable;
}
public void setCacheable(boolean cacheable) {
this.cacheable = cacheable;
}
public boolean isOptimizable() {
return false;
}
public SpringInvoker clone() throws CloneNotSupportedException {
SpringInvoker invoker = (SpringInvoker) super.clone();
invoker.bean = null;
return invoker;
}
}
|
