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Java > Open Source Codes > org > springframework > remoting > rmi > RmiInvocationWrapper


1 /*
2  * Copyright 2002-2007 the original author or authors.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.springframework.remoting.rmi;
18
19 import java.lang.reflect.InvocationTargetException JavaDoc;
20 import java.rmi.RemoteException JavaDoc;
21
22 import org.springframework.remoting.support.RemoteInvocation;
23 import org.springframework.util.Assert;
24
25 /**
26  * Server-side implementation of {@link RmiInvocationHandler}. An instance
27  * of this class exists for each remote object. Automatically created
28  * by {@link RmiServiceExporter} for non-RMI service implementations.
29  *
30  * <p>This is an SPI class, not to be used directly by applications.
31  *
32  * @author Juergen Hoeller
33  * @since 14.05.2003
34  * @see RmiServiceExporter
35  */
36 class RmiInvocationWrapper implements RmiInvocationHandler {
37
38     private final Object JavaDoc wrappedObject;
39
40     private final RmiBasedExporter rmiExporter;
41
42
43     /**
44      * Create a new RmiInvocationWrapper for the given object
45      * @param wrappedObject the object to wrap with an RmiInvocationHandler
46      * @param rmiExporter the RMI exporter to handle the actual invocation
47      */
48     public RmiInvocationWrapper(Object JavaDoc wrappedObject, RmiBasedExporter rmiExporter) {
49         Assert.notNull(wrappedObject, "Object to wrap is required");
50         Assert.notNull(rmiExporter, "RMI exporter is required");
51         this.wrappedObject = wrappedObject;
52         this.rmiExporter = rmiExporter;
53     }
54
55
56     /**
57      * Exposes the exporter's service interface, if any, as target interface.
58      * @see RmiBasedExporter#getServiceInterface()
59      */
60     public String JavaDoc getTargetInterfaceName() {
61         Class JavaDoc ifc = this.rmiExporter.getServiceInterface();
62         return (ifc != null ? ifc.getName() : null);
63     }
64
65     /**
66      * Delegates the actual invocation handling to the RMI exporter.
67      * @see RmiBasedExporter#invoke(org.springframework.remoting.support.RemoteInvocation, Object)
68      */
69     public Object JavaDoc invoke(RemoteInvocation invocation)
70         throws RemoteException JavaDoc, NoSuchMethodException JavaDoc, IllegalAccessException JavaDoc, InvocationTargetException JavaDoc {
71
72         return this.rmiExporter.invoke(invocation, this.wrappedObject);
73     }
74
75 }
76
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