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Java > Open Source Codes > org > jboss > aspects > remoting > ForwardingInterceptor


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package org.jboss.aspects.remoting;
23
24 import org.jboss.aop.joinpoint.MethodInvocation;
25 import org.jboss.aop.proxy.ClassProxyFactory;
26 import org.jboss.aop.util.reference.MethodPersistentReference;
27
28 import java.lang.reflect.InvocationTargetException JavaDoc;
29 import java.lang.reflect.Method JavaDoc;
30 import java.util.HashMap JavaDoc;
31 /**
32  * Checks to see if this object is local in VM
33  *
34  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
35  * @version $Revision: 44133 $
36  */
37 public class ForwardingInterceptor implements org.jboss.aop.advice.Interceptor, ClusterConstants
38 {
39    private final Object JavaDoc obj;
40    public ForwardingInterceptor(Object JavaDoc obj)
41    {
42       this.obj = obj;
43    }
44
45    public String JavaDoc getName() { return "ForwardingInterceptor"; }
46
47    public Object JavaDoc invoke(org.jboss.aop.joinpoint.Invocation invocation) throws Throwable JavaDoc
48    {
49       if (invocation instanceof MethodInvocation)
50       {
51          // For non-advised methods, we can only do public method invocations
52 org.jboss.aop.joinpoint.MethodInvocation methodInvocation = (org.jboss.aop.joinpoint.MethodInvocation)invocation;
53          long methodHash = methodInvocation.getMethodHash();
54          HashMap JavaDoc methodMap = ClassProxyFactory.getMethodMap(obj.getClass());
55          MethodPersistentReference ref = (MethodPersistentReference)methodMap.get(new Long JavaDoc(methodHash));
56          Method JavaDoc method = (Method JavaDoc)ref.get();
57          Object JavaDoc[] args = methodInvocation.getArguments();
58          try
59          {
60             return method.invoke(obj, args);
61          }
62          catch (InvocationTargetException JavaDoc ex)
63          {
64             throw ex.getTargetException();
65          }
66       }
67       else
68       {
69          throw new RuntimeException JavaDoc("field invocations not implemented");
70       }
71    }
72 }
73
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