1 /*
2 * Copyright 2002-2012 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;
20 import java.rmi.RemoteException;
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 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 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 @Override
61 public String getTargetInterfaceName() {
62 Class<?> ifc = this.rmiExporter.getServiceInterface();
63 return (ifc != null ? ifc.getName() : null);
64 }
65
66 /**
67 * Delegates the actual invocation handling to the RMI exporter.
68 * @see RmiBasedExporter#invoke(org.springframework.remoting.support.RemoteInvocation, Object)
69 */
70 @Override
71 public Object invoke(RemoteInvocation invocation)
72 throws RemoteException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
73
74 return this.rmiExporter.invoke(invocation, this.wrappedObject);
75 }
76
77 }