libjava/classpath/gnu/CORBA/NamingService/NamingServiceTransient.java

   1 /* NamingServiceTransient.java --
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 package gnu.CORBA.NamingService;
  40
  41 import gnu.CORBA.OrbFunctional;
  42 import gnu.CORBA.IOR;
  43
  44 import org.omg.CosNaming.NamingContextExt;
  45
  46 import java.io.FileOutputStream;
  47 import java.io.PrintStream;
  48 import java.io.UnsupportedEncodingException;
  49
  50 /**
  51  * The server for the gnu classpath naming service. This is an executable class
  52  * that must be started to launch the GNU Classpath CORBA transient naming
  53  * service.
  54  *
  55  * GNU Classpath currently works with this naming service and is also
  56  * interoperable with the Sun Microsystems naming services from releases 1.3 and
  57  * 1.4, both transient <i>tnameserv</i> and persistent <i>orbd</i>.
  58  *
  59  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  60  */
  61 public class NamingServiceTransient
  62 {
  63   /**
  64    * The default port (900), on that the naming service starts if no
  65    * -ORBInitialPort is specified in the command line.
  66    */
  67   public static final int PORT = 900;
  68
  69   /**
  70    * Get the object key for the naming service. The default key is the string
  71    * "NameService" in ASCII.
  72    *
  73    * @return the byte array.
  74    */
  75   public static byte[] getDefaultKey()
  76   {
  77     try
  78       { // NameService
  79         return "NameService".getBytes("UTF-8");
  80       }
  81     catch (UnsupportedEncodingException ex)
  82       {
  83         throw new InternalError("UTF-8 unsupported");
  84       }
  85   }
  86
  87   /**
  88    * Start the naming service on the current host at the given port. The
  89    * parameter -org.omg.CORBA.ORBInitialPort NNN or -ORBInitialPort NNN, if
  90    * present, specifies the port, on that the service must be started. If this
  91    * key is not specified, the service starts at the port 900.
  92    *
  93    * The parameter -ior FILE_NAME, if present, forces to store the ior string of
  94    * this naming service to the specified file.
  95    *
  96    * @param args the parameter string.
  97    */
  98   public static void main(String[] args)
  99   {
 100     int port = PORT;
 101     String iorf = null;
 102     try
 103       {
 104         // Create and initialize the ORB
 105         final OrbFunctional orb = new OrbFunctional();
 106
 107         if (args.length > 1)
 108           for (int i = 0; i < args.length - 1; i++)
 109             {
 110               if (args[i].endsWith("ORBInitialPort"))
 111                 port = Integer.parseInt(args[i + 1]);
 112
 113               if (args[i].equals("-ior"))
 114                 iorf = args[i + 1];
 115             }
 116
 117         OrbFunctional.setPort(port);
 118
 119         // Create the servant and register it with the ORB
 120         NamingContextExt namer = new Ext(new TransientContext());
 121
 122         // Case with the key "NameService".
 123         orb.connect(namer, "NameService".getBytes());
 124
 125         // Storing the IOR reference.
 126         String ior = orb.object_to_string(namer);
 127         IOR iorr = IOR.parse(ior);
 128         if (iorf != null)
 129           {
 130             FileOutputStream f = new FileOutputStream(iorf);
 131             PrintStream p = new PrintStream(f);
 132             p.print(ior);
 133             p.close();
 134           }
 135
 136         System.out.println("GNU Classpath transient naming service "
 137           + "started at " + iorr.Internet.host + ":" + iorr.Internet.port
 138           + " key 'NameService'.\n\n"
 139           + "Copyright (C) 2006 Free Software Foundation\n"
 140           + "This tool comes with ABSOLUTELY NO WARRANTY. "
 141           + "This is free software, and you are\nwelcome to "
 142           + "redistribute it under conditions, defined in "
 143           + "GNU Classpath license.\n\n" + ior);
 144
 145         new Thread()
 146         {
 147           public void run()
 148           {
 149             // Wait for invocations from clients.
 150             orb.run();
 151           }
 152         }.start();
 153       }
 154     catch (Exception e)
 155       {
 156         System.err.println("ERROR: " + e);
 157         e.printStackTrace(System.out);
 158       }
 159
 160     // Restore the default value for allocating ports for the subsequent
 161     // objects.
 162     OrbFunctional.setPort(OrbFunctional.DEFAULT_INITIAL_PORT);
 163   }
 164 }