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1
22 package org.jboss.naming.client.java;
23
24 import java.util.Hashtable  ;
25 import java.lang.reflect.InvocationHandler ;
26 import java.lang.reflect.Method ;
27 import java.lang.reflect.Proxy ;
28 import java.security.AccessController ;
29 import java.security.PrivilegedAction ;
30 import javax.naming.Context ;
31 import javax.naming.Name ;
32 import javax.naming.NamingException ;
33 import javax.naming.InitialContext ;
34 import javax.naming.OperationNotSupportedException ;
35 import javax.naming.NameParser ;
36 import javax.naming.spi.ObjectFactory ;
37
38 import org.jboss.corba.ORBFactory;
39
40
49 public class javaURLContextFactory
50 implements ObjectFactory
51 {
52 public static final String J2EE_CLIENT_NAME_PROP = "j2ee.clientName";
53
54 public Object getObjectInstance(Object obj, Name name, Context nameCtx,
56 Hashtable env)
57 throws Exception
58 {
59 String clientName = (String ) env.get(J2EE_CLIENT_NAME_PROP);
61 if (clientName == null)
62 {
63 clientName = (String ) AccessController.doPrivileged(
65 new PrivilegedAction ()
66 {
67 public Object run()
68 {
69 try
70 {
71 return System.getProperty(J2EE_CLIENT_NAME_PROP);
72 }
73 catch (SecurityException e)
74 {
75 return null;
76 }
77 }
78 }
79 );
80 if (clientName == null)
81 throw new NamingException ("Failed to find j2ee.clientName in jndi env");
82 }
83
84 Object result = null;
85
86 if (nameCtx == null)
87 nameCtx = new InitialContext (env);
88 if (obj == null)
89 {
90 InvocationHandler handler = new EncContextProxy(nameCtx, clientName);
92 ClassLoader loader = Thread.currentThread().getContextClassLoader();
93 Class [] ifaces = {Context .class};
94 result = Proxy.newProxyInstance(loader, ifaces, handler);
95 }
96 return result;
97 }
98
99 private static class EncContextProxy implements InvocationHandler
100 {
101 Context lookupCtx;
102 String clientName;
103
104 EncContextProxy(Context lookupCtx, String clientName)
105 {
106 this.lookupCtx = lookupCtx;
107 this.clientName = clientName;
108 }
109
110
112 public Object invoke(Object proxy, Method method, Object [] args)
113 throws Throwable
114 {
115 String methodName = method.getName();
116 if (methodName.equals("toString") == true)
117 return "Client ENC(" + clientName + ")";
118
119 if (methodName.equals("lookup") == false)
120 throw new OperationNotSupportedException ("Only lookup is supported, op=" + method);
121 NameParser parser = lookupCtx.getNameParser("");
122 Name name = null;
123 if (args[0] instanceof String )
124 name = parser.parse((String ) args[0]);
125 else
126 name = (Name ) args[0];
127
128 if (name.size() < 2 || "java:comp".equals(name.get(0)) == false || "env".equals(name.get(1)) == false)
130 return getSpecialObject(name);
131 Context clientCtx = (Context ) lookupCtx.lookup(clientName);
133 Name bindingName = name.getSuffix(2);
135 Object binding = clientCtx.lookup(bindingName);
136 return binding;
137 }
138
139 public Object getSpecialObject(Name name) throws NamingException
140 {
141 if (name.size() > 0 && "java:comp".equals(name.get(0)))
142 {
143 if (name.size() == 2 && "ORB".equals(name.get(1)))
144 return ORBFactory.getORB();
145 else if (name.size() == 2 && "HandleDelegate".equals(name.get(1)))
146 return HandleDelegateFactory.getHandleDelegateSingleton();
147 }
148 throw new NamingException ("Name not found " + name);
149 }
150 }
151 }
152 |
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