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.injection;
23:
24: import java.lang.reflect.Field;
25: import javax.management.MBeanServer;
26: import javax.management.MBeanServerFactory;
27: import javax.management.ObjectName;
28: import org.jboss.ejb3.BeanContext;
29: import org.jboss.mx.util.MBeanProxyExt;
30:
31: /**
32: * @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
33: * @version $Revision: 60233 $
34: */
35: public class DependsFieldInjector implements Injector {
36: Field field;
37: ObjectName on;
38:
39: public DependsFieldInjector(Field field, ObjectName on) {
40: this .field = field;
41: this .on = on;
42: field.setAccessible(true);
43: }
44:
45: public void inject(BeanContext ctx) {
46: Object instance = ctx.getInstance();
47: inject(instance);
48: }
49:
50: public void inject(Object instance) {
51: Class clazz = field.getType();
52: Object value = null;
53:
54: if (clazz == ObjectName.class) {
55: value = on;
56: } else {
57: MBeanServer server = (MBeanServer) MBeanServerFactory
58: .findMBeanServer(null).get(0);
59: value = MBeanProxyExt.create(clazz, on, server);
60: }
61:
62: try {
63: field.set(instance, value);
64: } catch (IllegalAccessException e) {
65: throw new RuntimeException(e);
66: }
67: }
68:
69: public Class getInjectionClass() {
70: return field.getType();
71: }
72: }
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