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[pf3gnuchains/gcc-fork.git] / libjava / classpath / examples / gnu / classpath / examples / CORBA / NamingService / Demo.java
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+/* Demo.java -- Shows how to use Classpath transient naming service.
+   Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.classpath.examples.CORBA.NamingService;
+
+import gnu.CORBA.IOR;
+import gnu.CORBA.NamingService.NamingServiceTransient;
+
+import org.omg.CORBA.ORB;
+import org.omg.CORBA.Object;
+import org.omg.CosNaming.Binding;
+import org.omg.CosNaming.BindingHolder;
+import org.omg.CosNaming.BindingIterator;
+import org.omg.CosNaming.BindingIteratorHolder;
+import org.omg.CosNaming.BindingListHolder;
+import org.omg.CosNaming.NameComponent;
+import org.omg.CosNaming.NamingContext;
+import org.omg.CosNaming.NamingContextExt;
+import org.omg.CosNaming.NamingContextExtHelper;
+import org.omg.CosNaming.NamingContextHelper;
+
+/**
+ * A simple test of the naming service.
+ *
+ * The main class of the GNU Classpath transient naming service is
+ * {@link gnu.CORBA.NamingService}. This class must be started
+ * before starting this example.
+ *
+ * This example should interoperate as with GNU Classpath naming
+ * service, as with Sun Microsystems transient and persistent
+ * naming services, included in releases 1.3 and 1.4 (tnameserv and
+ * orbd). To work with this example, the naming service must
+ * be started on the local host, at the port 900.
+ *
+ * The persistent naming service is currently under development.
+ *
+ * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
+ */
+public class Demo
+{
+  public static void main(final String[] args)
+  {
+    // We create the following naming graph:
+    // <ROOT CONTEXT>
+    //  |
+    //  +--- <c.d context>
+    //  |     |
+    //  |     +--- obj
+    //  |
+    //  +--- xobj
+    //
+    // Where both obj and xobj are CORBA objects, representing the
+    // default naming service.
+    //
+    System.out.println("Starting the GNU Classpath " +
+                       "built-in transient naming service"
+                      );
+
+    new Thread()
+      {
+        public void run()
+        {
+          NamingServiceTransient.main(args);
+        }
+      }.start();
+
+    System.out.println("Waiting for three seconds for naming service to start:");
+    try
+      {
+        Thread.sleep(3000);
+      }
+    catch (InterruptedException ex)
+      {
+      }
+
+    try
+      {
+        ORB orb = ORB.init(args, null);
+
+        Object no = orb.resolve_initial_references("NameService");
+
+        System.out.println("Naming service IOR:" + orb.object_to_string(no));
+
+        System.out.println(IOR.parse(orb.object_to_string(no)));
+
+        NamingContextExt namer = NamingContextExtHelper.narrow(no);
+
+        System.out.println("Naming service: " + namer.getClass().getName());
+
+        NamingContext second = namer.new_context();
+
+        namer.rebind_context(namer.to_name("c.d"), second);
+        namer.rebind(namer.to_name("xobj"), no);
+
+        second.rebind(namer.to_name("obj"), no);
+
+        NamingContext nsec =
+          NamingContextHelper.narrow(namer.resolve_str("c.d"));
+
+        System.out.println(namer.resolve(namer.to_name("c.d/obj")));
+
+        // In all cases, this must be the same object (the naming
+        // service itself).
+        System.out.println(nsec.resolve(new NameComponent[]
+                                        {
+                                          new NameComponent("obj", "")
+                                        }
+                                       )
+                          );
+        System.out.println(namer.resolve_str("xobj"));
+
+        // In all cases, this must be the same object (the naming
+        // service itself).
+        System.out.println(namer.resolve(new NameComponent[]
+                                         {
+                                           new NameComponent("c", "d"),
+                                           new NameComponent("obj", "")
+                                         }
+                                        )
+                          );
+
+        System.out.println(namer.resolve_str("c.d/obj"));
+
+        System.out.println("Test binding list iterator:");
+
+        BindingListHolder lh = new BindingListHolder();
+        BindingIteratorHolder lih = new BindingIteratorHolder();
+
+        namer.list(0, lh, lih);
+
+        BindingIterator iter = lih.value;
+        BindingHolder binding = new BindingHolder();
+
+        while (iter.next_one(binding))
+          {
+            Binding b = binding.value;
+            System.out.println("NAME: " + namer.to_string(b.binding_name) +
+                               " TYPE " + b.binding_type.value()
+                              );
+          }
+
+        System.out.println("Testing binding list:");
+
+        iter.destroy();
+
+        namer.list(Integer.MAX_VALUE, lh, lih);
+
+        for (int i = 0; i < lh.value.length; i++)
+          {
+            Binding b = lh.value [ i ];
+            System.out.println("NAME: " + namer.to_string(b.binding_name) +
+                               " TYPE " + b.binding_type.value()
+                              );
+          }
+      }
+    catch (Exception ex)
+      {
+        ex.printStackTrace();
+        System.exit(1);
+      }
+
+    System.exit(0);
+  }
+}