01: /**
02: * EasyBeans
03: * Copyright (C) 2006 Bull S.A.S.
04: * Contact: easybeans@ow2.org
05: *
06: * This library is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU Lesser General Public
08: * License as published by the Free Software Foundation; either
09: * version 2.1 of the License, or any later version.
10: *
11: * This library is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * Lesser General Public License for more details.
15: *
16: * You should have received a copy of the GNU Lesser General Public
17: * License along with this library; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19: * USA
20: *
21: * --------------------------------------------------------------------------
22: * $Id: EZBENCInterceptor.java 1970 2007-10-16 11:49:25Z benoitf $
23: * --------------------------------------------------------------------------
24: */package org.ow2.easybeans.naming.interceptors;
25:
26: import javax.naming.Context;
27: import javax.naming.NamingException;
28:
29: import org.ow2.easybeans.api.EasyBeansInvocationContext;
30: import org.ow2.easybeans.api.naming.NamingInterceptor;
31: import org.ow2.easybeans.naming.NamingManager;
32:
33: /**
34: * This interceptor sets the ENC context before calling method.
35: * @author Florent Benoit
36: */
37: public class EZBENCInterceptor extends AbsENCInterceptor implements
38: NamingInterceptor {
39:
40: /**
41: * Reference on the naming manager.
42: */
43: private static NamingManager namingManager = null;
44:
45: /**
46: * Default constructor.
47: * Gets a reference on the naming manager.
48: */
49: public EZBENCInterceptor() {
50: if (namingManager == null) {
51: try {
52: namingManager = NamingManager.getInstance();
53: } catch (NamingException e) {
54: throw new IllegalStateException(
55: "Cannot get the naming manager", e);
56: }
57: }
58: }
59:
60: /**
61: * Sets ENC context.
62: * @param invocationContext context with useful attributes on the current
63: * invocation.
64: * @return result of the next invocation (to chain interceptors).
65: * @throws Exception needs for signature of interceptor.
66: */
67: @Override
68: public Object intercept(
69: final EasyBeansInvocationContext invocationContext)
70: throws Exception {
71: Context oldContext = namingManager
72: .setComponentContext(invocationContext.getFactory()
73: .getJavaContext());
74: try {
75: return invocationContext.proceed();
76: } finally {
77: namingManager.resetComponentContext(oldContext);
78: }
79: }
80: }
|