|
1
8
9 package mx4j.remote.rmi;
10
11 import java.lang.reflect.Method  ;
12 import java.lang.reflect.Proxy ;
13 import java.security.AccessController ;
14 import java.security.PrivilegedAction ;
15
16 import javax.management.MBeanServerConnection ;
17
18 import mx4j.remote.ClientProxy;
19
20
28 public class ClientUnmarshaller extends ClientProxy
29 {
30 private final ClassLoader classLoader;
31
32 private ClientUnmarshaller(MBeanServerConnection target, ClassLoader loader)
33 {
34 super(target);
35 this.classLoader = loader;
36 }
37
38 public static MBeanServerConnection newInstance(MBeanServerConnection target, ClassLoader loader)
39 {
40 ClientUnmarshaller handler = new ClientUnmarshaller(target, loader);
41 return (MBeanServerConnection )Proxy.newProxyInstance(handler.getClass().getClassLoader(), new Class []{MBeanServerConnection .class}, handler);
42 }
43
44 public Object invoke(Object proxy, Method method, Object [] args) throws Throwable
45 {
46 if (classLoader == null)
47 {
48 return chain(proxy, method, args);
49 }
50 else
51 {
52 ClassLoader old = Thread.currentThread().getContextClassLoader();
53 try
54 {
55 setContextClassLoader(classLoader);
56 return chain(proxy, method, args);
57 }
58 finally
59 {
60 setContextClassLoader(old);
61 }
62 }
63 }
64
65 private Object chain(Object proxy, Method method, Object [] args) throws Throwable
66 {
67 return super.invoke(proxy, method, args);
68 }
69
70 private void setContextClassLoader(final ClassLoader loader)
71 {
72 AccessController.doPrivileged(new PrivilegedAction ()
73 {
74 public Object run()
75 {
76 Thread.currentThread().setContextClassLoader(loader);
77 return null;
78 }
79 });
80 }
81 }
82 |
Popular Tags |
Java API By Example, From Geeks To Geeks.