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jeremybenn |
/* Demo.java -- Shows how to use Classpath transient naming service.
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.classpath.examples.CORBA.NamingService;
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import gnu.CORBA.IOR;
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import org.omg.CORBA.ORB;
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import org.omg.CORBA.Object;
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import org.omg.CosNaming.Binding;
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import org.omg.CosNaming.BindingHolder;
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import org.omg.CosNaming.BindingIterator;
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import org.omg.CosNaming.BindingIteratorHolder;
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import org.omg.CosNaming.BindingListHolder;
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import org.omg.CosNaming.NameComponent;
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import org.omg.CosNaming.NamingContext;
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import org.omg.CosNaming.NamingContextExt;
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import org.omg.CosNaming.NamingContextExtHelper;
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import org.omg.CosNaming.NamingContextHelper;
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/**
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* A simple test of the naming service.
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*
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* The main class of the GNU Classpath transient naming service is
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* {@link gnu.CORBA.NamingService}. This class must be started
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* before starting this example.
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*
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* This example should interoperate as with GNU Classpath naming
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* service, as with Sun Microsystems transient and persistent
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* naming services, included in releases 1.3 and 1.4 (tnameserv and
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* orbd). To work with this example, the naming service must
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* be started on the local host, at the port 900.
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*
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* The persistent naming service is currently under development.
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public class Demo
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{
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public static void main(String[] an_args)
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{
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// We create the following naming graph:
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// <ROOT CONTEXT>
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// |
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// +--- <c.d context>
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// | |
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// | +--- obj
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// |
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// +--- xobj
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//
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// Where both obj and xobj are CORBA objects, representing the
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// default naming service.
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//
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System.out.println("Starting the GNU Classpath " +
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"built-in transient naming service"
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);
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final String[] args = an_args;
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new Thread()
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{
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public void run()
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{
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gnu.classpath.tools.tnameserv.Main.main(args);
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}
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}.start();
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System.out.println("Waiting for three seconds for naming service to start:");
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try
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{
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Thread.sleep(3000);
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}
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catch (InterruptedException ex)
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{
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}
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try
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{
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ORB orb = ORB.init(args, null);
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Object no = orb.resolve_initial_references("NameService");
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System.out.println("Naming service IOR:" + orb.object_to_string(no));
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System.out.println(IOR.parse(orb.object_to_string(no)));
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NamingContextExt namer = NamingContextExtHelper.narrow(no);
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System.out.println("Naming service: " + namer.getClass().getName());
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NamingContext second = namer.new_context();
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namer.rebind_context(namer.to_name("c.d"), second);
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namer.rebind(namer.to_name("xobj"), no);
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second.rebind(namer.to_name("obj"), no);
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NamingContext nsec =
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NamingContextHelper.narrow(namer.resolve_str("c.d"));
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System.out.println(namer.resolve(namer.to_name("c.d/obj")));
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// In all cases, this must be the same object (the naming
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// service itself).
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System.out.println(nsec.resolve(new NameComponent[]
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{
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new NameComponent("obj", "")
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}
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)
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);
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System.out.println(namer.resolve_str("xobj"));
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// In all cases, this must be the same object (the naming
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// service itself).
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System.out.println(namer.resolve(new NameComponent[]
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{
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new NameComponent("c", "d"),
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new NameComponent("obj", "")
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}
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)
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);
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System.out.println(namer.resolve_str("c.d/obj"));
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System.out.println("Test binding list iterator:");
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BindingListHolder lh = new BindingListHolder();
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BindingIteratorHolder lih = new BindingIteratorHolder();
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namer.list(0, lh, lih);
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BindingIterator iter = lih.value;
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BindingHolder binding = new BindingHolder();
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while (iter.next_one(binding))
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{
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Binding b = binding.value;
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System.out.println("NAME: " + namer.to_string(b.binding_name) +
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" TYPE " + b.binding_type.value()
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);
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}
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System.out.println("Testing binding list:");
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iter.destroy();
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namer.list(Integer.MAX_VALUE, lh, lih);
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for (int i = 0; i < lh.value.length; i++)
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{
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Binding b = lh.value [ i ];
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System.out.println("NAME: " + namer.to_string(b.binding_name) +
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" TYPE " + b.binding_type.value()
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);
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}
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}
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catch (Exception ex)
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{
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ex.printStackTrace();
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System.exit(1);
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}
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System.exit(0);
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}
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}
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