1 /*
2 * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
3 * the spring framework, http://el4j.sf.net
4 * Copyright (C) 2005 by ELCA Informatique SA, Av. de la Harpe 22-24,
5 * 1000 Lausanne, Switzerland, http://www.elca.ch
6 *
7 * EL4J is published under the GNU Lesser General Public License (LGPL)
8 * Version 2.1. See http://www.gnu.org/licenses/
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Lesser General Public License for more details.
14 *
15 * For alternative licensing, please contact info@elca.ch
16 */
17
18 package ch.elca.el4j.services.exceptionhandler;
19
20 import org.aopalliance.intercept.MethodInvocation;
21 import org.springframework.beans.factory.InitializingBean;
22
23 import ch.elca.el4j.services.exceptionhandler.handler.ExceptionHandler;
24
25 /**
26 * This class configures an exception handler. It maps exception types to
27 * exception handlers.
28 *
29 * @svnLink $Revision: 3873 $;$Date: 2009-08-04 13:59:45 +0200 (Di, 04. Aug 2009) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/modules/exception_handling/src/main/java/ch/elca/el4j/services/exceptionhandler/ClassExceptionConfiguration.java $
30 *
31 * @author Andreas Bur (ABU)
32 */
33 public class ClassExceptionConfiguration
34 implements ExceptionConfiguration, InitializingBean {
35
36 /** The exception types which the handler is responsible for. */
37 private Class[] m_exceptionTypes;
38
39 /** The exception handler. */
40 private ExceptionHandler m_exceptionHandler;
41
42 /**
43 * @return Returns the exception types which the handler is responsible for.
44 */
45 public Class[] getExceptionTypes() {
46 return m_exceptionTypes;
47 }
48
49 /**
50 * Sets the exception types which the hander is responsible for.
51 *
52 * @param exceptionTypes
53 * The exception types to set.
54 */
55 public void setExceptionTypes(Class[] exceptionTypes) {
56 m_exceptionTypes = exceptionTypes;
57 }
58
59 /**
60 * {@inheritDoc}
61 */
62 public ExceptionHandler getExceptionHandler() {
63 return m_exceptionHandler;
64 }
65
66 /**
67 * Sets the exception handler.
68 *
69 * @param exceptionHandler
70 * The exception handler to set.
71 */
72 public void setExceptionHandler(ExceptionHandler exceptionHandler) {
73 m_exceptionHandler = exceptionHandler;
74 }
75
76 /**
77 * {@inheritDoc}
78 */
79 public boolean handlesExceptions(Throwable t, MethodInvocation invocation) {
80 for (int i = 0; i < m_exceptionTypes.length; i++) {
81 if (m_exceptionTypes[i].isInstance(t)) {
82 return true;
83 }
84 }
85 return false;
86 }
87
88 /**
89 * {@inheritDoc}
90 */
91 public void afterPropertiesSet() throws Exception {
92 if (m_exceptionTypes == null || m_exceptionTypes.length == 0) {
93 throw new IllegalAccessException(
94 "The property 'exceptionTypes' is required.");
95 }
96 if (m_exceptionHandler == null) {
97 throw new IllegalAccessException(
98 "The property 'exceptionHandler' is required.");
99 }
100 }
101 }