libjava/classpath/tools/gnu/classpath/tools/rmi/REGISTRY.java

   1 /* REGISTY.java -- RMI registry starter.
   2    Copyright (C) 2006 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.classpath.tools.rmi;
  40
  41 import gnu.classpath.tools.HelpPrinter;
  42 import gnu.classpath.tools.rmi.registry.RegistryImpl;
  43 import gnu.java.rmi.server.UnicastServerRef;
  44
  45 import java.io.File;
  46 import java.rmi.NotBoundException;
  47 import java.rmi.RemoteException;
  48 import java.rmi.registry.LocateRegistry;
  49 import java.rmi.registry.Registry;
  50 import java.rmi.server.ObjID;
  51 import java.rmi.server.RMIServerSocketFactory;
  52 import java.util.Hashtable;
  53 import java.util.Map;
  54
  55 /**
  56  * The optionally persistent RMI registry implementation.
  57  *
  58  * @author Audrius Meskauskas (audriusa@bioinformatics.org)
  59  */
  60 public class REGISTRY
  61 {
  62   /**
  63    * The stop command.
  64    */
  65   public static String STOP = "gnu.classpath.tools.rmi.registry.command.STOP";
  66
  67   /**
  68    * If true, the registry prints registration events to console.
  69    */
  70   public static boolean verbose = false;
  71
  72   /**
  73    * The RMI registry implementation entry point.
  74    */
  75   public static void main(String[] args)
  76   {
  77     String HelpPath = "rmi/REGISTRY.txt";
  78     HelpPrinter.checkHelpKey(args, HelpPath);
  79
  80     // Parse parameters:
  81     String folder = ".";
  82     boolean cold = false;
  83     boolean trans = false;
  84     boolean stop = false;
  85
  86     int port = Registry.REGISTRY_PORT;
  87     RMIServerSocketFactory ssf = null;
  88
  89     for (int i = 0; i < args.length; i++)
  90       {
  91         String a = args[i];
  92         if (a.equals("-restart"))
  93           cold = true;
  94         else if (a.equals("-transient"))
  95           trans = true;
  96         else if (a.equals("-verbose"))
  97           verbose = true;
  98         else if (a.equals("-stop"))
  99           stop = true;
 100         else if (i < args.length - 1)
 101           {
 102             // The additional key parameter is possible.
 103             if (a.equals("-port"))
 104               port = Integer.parseInt(args[++i]);
 105             else if (a.equals("-folder"))
 106               folder = args[++i];
 107           }
 108       }
 109
 110     if (!stop)
 111       {
 112         Map table;
 113         if (trans)
 114           table = new Hashtable();
 115         else
 116           {
 117             // Start the system.
 118             File dataFolder = new File(folder);
 119             if (!dataFolder.exists())
 120               dataFolder.mkdirs();
 121             table = PersistentHashTable.createInstance(
 122               new File(dataFolder, "rmiregistry.data"), cold);
 123           }
 124
 125         RegistryImpl system = new RegistryImpl(table);
 126
 127         // We must export with the specific activation id that is only
 128         // possible when going into the gnu.java.rmi
 129         try
 130           {
 131             UnicastServerRef sref = new UnicastServerRef(
 132               new ObjID(ObjID.REGISTRY_ID), port, ssf);
 133
 134             sref.exportObject(system);
 135             System.out.println("The RMI naming service is listening at " + port);
 136           }
 137         catch (Exception ex)
 138           {
 139             System.out.println("Failed to start RMI naming service at " + port);
 140           }
 141       }
 142     else
 143       {
 144         // Stop the naming service.
 145         try
 146           {
 147             Registry r = LocateRegistry.getRegistry(port);
 148             // Search for this specific line will command to stop the registry.
 149
 150             // Our service returns null, but any other service will thrown
 151             // NotBoundException.
 152             r.unbind(STOP);
 153           }
 154         catch (RemoteException e)
 155           {
 156             System.out.println("Failed to stop RMI naming service at " + port);
 157           }
 158         catch (NotBoundException e)
 159         {
 160             System.out.println("The naming service at port "+port+" is not a "+
 161                                REGISTRY.class.getName());
 162         }
 163       }
 164   }
 165 }