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.naming.interceptors;
23
24 import java.io.Externalizable;
25 import java.io.IOException;
26
27 import javax.naming.CommunicationException;
28 import javax.naming.NamingException;
29 import javax.naming.ServiceUnavailableException;
30
31 import org.jboss.invocation.Invocation;
32 import org.jboss.proxy.Interceptor;
33
34 /** A client interceptor that handles the wrapping of exceptions to
35 * NamingExceptions
36 *
37 * @author Scott.Stark@jboss.org
38 * @version $Revision: 37459 $
39 */
40 public class ExceptionInterceptor extends Interceptor
41 implements Externalizable
42 {
43 /** The serialVersionUID. @since 1.1.2.1 */
44 private static final long serialVersionUID = 6010013004557885014L;
45
46 /** Handle methods locally on the client
47 *
48 * @param mi
49 * @return
50 * @throws Throwable
51 */
52 public Object invoke(Invocation mi) throws Throwable
53 {
54 Object value = null;
55 try
56 {
57 value = getNext().invoke(mi);
58 }
59 catch(NamingException e)
60 {
61 throw e;
62 }
63 catch(IOException e)
64 {
65 CommunicationException ce = new CommunicationException("Operation failed");
66 ce.setRootCause(e);
67 throw ce;
68 }
69 catch(Throwable t)
70 {
71 ServiceUnavailableException sue = new ServiceUnavailableException("Unexpected failure");
72 sue.setRootCause(t);
73 throw sue;
74 }
75
76 return value;
77 }
78
79 }
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