/*
* JacORB - a free Java ORB
*
* Copyright (C) 1997-2004 Gerald Brose.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.jacorb.naming;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Hashtable;
import org.omg.CosNaming.Binding;
import org.omg.CosNaming.BindingHolder;
import org.omg.CosNaming.BindingIteratorHolder;
import org.omg.CosNaming.BindingListHolder;
import org.omg.CosNaming.BindingType;
import org.omg.CosNaming.NameComponent;
import org.omg.CosNaming.NamingContextExt;
import org.omg.CosNaming.NamingContextExtHelper;
/**
* This class allows listing all bindings in a naming context
* to a PrintStream
*
* @author Gerald Brose
* @version $Id: ContextLister.java,v 1.10 2008-11-14 08:55:30 nick.cross Exp $
*/
public class ContextLister
{
public NamingContextExt root_context;
private Hashtable contexts = new Hashtable();
private org.omg.CORBA.ORB orb;
public ContextLister(org.omg.CORBA.ORB orb)
{
this.orb = orb;
// initialise Naming Service via ORB
try
{
org.omg.CORBA.Object obj =
orb.resolve_initial_references("NameService");
root_context = NamingContextExtHelper.narrow( obj );
}
catch( org.omg.CORBA.ORBPackage.InvalidName inex ) {
inex.printStackTrace();
}
catch(org.omg.CORBA.SystemException corba_exception) {
System.err.println(corba_exception);
}
if( root_context == null ) {
System.err.println("No Naming Context available, giving up ...");
System.exit( 1 );
}
}
public ContextLister( org.omg.CORBA.ORB orb, String str )
{
this.orb = orb;
// initialise Naming Service via stringified IOR
try
{
org.omg.CORBA.Object obj = orb.string_to_object( str );
root_context = NamingContextExtHelper.narrow( obj );
}
catch(org.omg.CORBA.SystemException corba_exception) {
System.err.println(corba_exception);
}
if( root_context == null ) {
System.err.println("No Naming Context available, giving up ...");
System.exit( 1 );
}
}
private void mark(NamingContextExt nc) {
contexts.put( orb.object_to_string(nc), "" );
}
private boolean isMarked(NamingContextExt nc)
{
return contexts.containsKey(orb.object_to_string(nc));
}
public void list(java.io.PrintStream ps)
{
list( root_context, " ", ps);
}
private void list( NamingContextExt n, String indent, java.io.PrintStream ps )
{
if( isMarked(n))
{
return;
}
mark(n);
try
{
BindingListHolder blsoh =
new BindingListHolder(new Binding[0]);
BindingIteratorHolder bioh =
new BindingIteratorHolder();
n.list( 0, blsoh, bioh );
BindingHolder bh = new BindingHolder();
if( bioh.value == null )
return;
while( bioh.value.next_one( bh ))
{
String stringName = root_context.to_string( bh.value.binding_name);
ps.print( indent + stringName );
if( bh.value.binding_type.value() == BindingType._ncontext )
{
String _indent = indent + "\t";
ps.println("/");
NameComponent [] name = root_context.to_name(stringName);
NamingContextExt sub_context =
NamingContextExtHelper.narrow( n.resolve(name) );
list( sub_context, _indent, ps );
}
else
System.out.println();
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
public static void main(String args[])
{
org.omg.CORBA.ORB orb =
org.omg.CORBA.ORB.init(args,null);
ContextLister ctxLister;
PrintStream pw = System.out;
String url = null;
for( int i = 0; i < args.length; i += 2 )
{
try
{
if( args[i].startsWith("-f"))
{
try
{
pw = new PrintStream( new FileOutputStream( args[i+1] ));
}
catch( IOException ioe)
{
System.err.println( ioe.getMessage() );
System.exit(1);
}
continue;
}
if( args[i].startsWith("-url"))
{
url = args[i+1];
}
}
catch( Exception e )
{
System.err.println("Usage: org.jacorb.naming.ContextLister [-url object url] [-f output file]");
System.exit(1);
}
}
if( url != null )
{
ctxLister = new ContextLister(orb, url);
}
else
{
ctxLister = new ContextLister(orb);
}
ctxLister.list( pw );
orb.shutdown(true);
}
}