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1
20
21 package org.jacorb.naming;
22
23 import org.omg.CosNaming.*;
24 import org.omg.CosNaming.NamingContextPackage.*;
25 import java.io.*;
26 import java.util.*;
27
28
35
36 public class ContextLister
37 {
38 public NamingContextExt root_context;
39 private Hashtable contexts = new Hashtable();
40 private org.omg.CORBA.ORB  orb;
41
42 public ContextLister(org.omg.CORBA.ORB orb)
43 {
44 this.orb = orb;
45 try
47 {
48 org.omg.CORBA.Object obj =
49 orb.resolve_initial_references("NameService");
50 root_context = NamingContextExtHelper.narrow( obj );
51 }
52 catch( org.omg.CORBA.ORBPackage.InvalidName inex ) {
53 inex.printStackTrace();
54 }
55 catch(org.omg.CORBA.SystemException corba_exception) {
56 System.err.println(corba_exception);
57 }
58
59 if( root_context == null ) {
60 System.err.println("No Naming Context available, giving up ...");
61 System.exit( 1 );
62 }
63 }
64
65 public ContextLister( org.omg.CORBA.ORB orb, String str )
66 {
67 this.orb = orb;
68 try
70 {
71 org.omg.CORBA.Object obj = orb.string_to_object( str );
72 root_context = NamingContextExtHelper.narrow( obj );
73 }
74 catch(org.omg.CORBA.SystemException corba_exception) {
75 System.err.println(corba_exception);
76 }
77
78 if( root_context == null ) {
79 System.err.println("No Naming Context available, giving up ...");
80 System.exit( 1 );
81 }
82 }
83
84 private void mark(NamingContextExt nc) {
85 contexts.put( orb.object_to_string(nc), "" );
86 }
87
88 private boolean isMarked(NamingContextExt nc)
89 {
90 return contexts.containsKey(orb.object_to_string(nc));
91 }
92
93
94 public void list(java.io.PrintStream ps)
95 {
96 list( root_context, " ", ps);
97 }
98
99 private void list( NamingContextExt n, String indent, java.io.PrintStream ps )
100 {
101 if( isMarked(n))
102 {
103 return;
104 }
105
106 mark(n);
107
108 try
109 {
110 BindingListHolder blsoh =
111 new BindingListHolder(new Binding[0]);
112
113 BindingIteratorHolder bioh =
114 new BindingIteratorHolder();
115
116 n.list( 0, blsoh, bioh );
117
118 BindingHolder bh = new BindingHolder();
119
120 if( bioh.value == null )
121 return;
122
123 while( bioh.value.next_one( bh ))
124 {
125 String stringName = root_context.to_string( bh.value.binding_name);
126 ps.print( indent + stringName );
127 if( bh.value.binding_type.value() == BindingType._ncontext )
128 {
129 String _indent = indent + "\t";
130 ps.println("/");
131
132 NameComponent [] name = root_context.to_name(stringName);
133 NamingContextExt sub_context =
134 NamingContextExtHelper.narrow( n.resolve(name) );
135 list( sub_context, _indent, ps );
136 }
137 else
138 System.out.println();
139 }
140 }
141 catch (Exception e)
142 {
143 e.printStackTrace();
144 }
145 }
146
147
148 public static void main(String args[])
149 {
150 org.omg.CORBA.ORB orb =
151 org.omg.CORBA.ORB.init(args,null);
152
153 ContextLister ctxLister;
154 PrintStream pw = System.out;
155 String url = null;
156
157 for( int i = 0; i < args.length; i += 2 )
158 {
159 try
160 {
161 if( args[i].startsWith("-f"))
162 {
163 try
164 {
165 pw = new PrintStream( new FileOutputStream( args[i+1] ));
166 }
167 catch( IOException ioe)
168 {
169 System.err.println( ioe.getMessage() );
170 System.exit(1);
171 }
172 continue;
173 }
174 if( args[i].startsWith("-url"))
175 {
176 url = args[i+1];
177 }
178 }
179 catch( Exception e )
180 {
181 System.err.println("Usage: org.jacorb.naming.ContextLister [-url object url] [-f output file]");
182 System.exit(1);
183
184 }
185 }
186
187 if( url != null )
188 {
189 ctxLister = new ContextLister(orb, url);
190 }
191 else
192 {
193 ctxLister = new ContextLister(orb);
194 }
195
196 ctxLister.list( pw );
197 orb.shutdown(true);
198 }
199 }
200
201
202 |
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