01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * 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: 57209 $
39: */
40: public class ExceptionInterceptor extends Interceptor implements
41: Externalizable {
42: /** The serialVersionUID. @since 1.1.2.1 */
43: private static final long serialVersionUID = 6010013004557885014L;
44:
45: /** Handle methods locally on the client
46: *
47: * @param mi
48: * @return
49: * @throws Throwable
50: */
51: public Object invoke(Invocation mi) throws Throwable {
52: Object value = null;
53: try {
54: value = getNext().invoke(mi);
55: } catch (NamingException e) {
56: throw e;
57: } catch (IOException e) {
58: CommunicationException ce = new CommunicationException(
59: "Operation failed");
60: ce.setRootCause(e);
61: throw ce;
62: } catch (Throwable t) {
63: ServiceUnavailableException sue = new ServiceUnavailableException(
64: "Unexpected failure");
65: sue.setRootCause(t);
66: throw sue;
67: }
68:
69: return value;
70: }
71:
72: }
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