gomp-20050608-branch/libjava/classpath/gnu/java/rmi/registry/RegistryImpl.java

   1 /* RegistryImpl.java --
   2    Copyright (c) 1996, 1997, 1998, 1999, 2002, 2005
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GNU Classpath.
   6
   7 GNU Classpath is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU Classpath is distributed in the hope that it will be useful, but
  13 WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Classpath; see the file COPYING.  If not, write to the
  19 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20 02110-1301 USA.
  21
  22 Linking this library statically or dynamically with other modules is
  23 making a combined work based on this library.  Thus, the terms and
  24 conditions of the GNU General Public License cover the whole
  25 combination.
  26
  27 As a special exception, the copyright holders of this library give you
  28 permission to link this library with independent modules to produce an
  29 executable, regardless of the license terms of these independent
  30 modules, and to copy and distribute the resulting executable under
  31 terms of your choice, provided that you also meet, for each linked
  32 independent module, the terms and conditions of the license of that
  33 module.  An independent module is a module which is not derived from
  34 or based on this library.  If you modify this library, you may extend
  35 this exception to your version of the library, but you are not
  36 obligated to do so.  If you do not wish to do so, delete this
  37 exception statement from your version. */
  38
  39 package gnu.java.rmi.registry;
  40
  41 import gnu.java.rmi.server.UnicastServerRef;
  42
  43 import java.rmi.AccessException;
  44 import java.rmi.AlreadyBoundException;
  45 import java.rmi.NotBoundException;
  46 import java.rmi.Remote;
  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.RMIClientSocketFactory;
  52 import java.rmi.server.RMIServerSocketFactory;
  53 import java.rmi.server.RMISocketFactory;
  54 import java.rmi.server.UnicastRemoteObject;
  55 import java.util.Enumeration;
  56 import java.util.Hashtable;
  57
  58 public class RegistryImpl
  59         extends UnicastRemoteObject implements Registry {
  60
  61 private Hashtable bindings = new Hashtable();
  62
  63 public RegistryImpl(int port) throws RemoteException {
  64         this(port, RMISocketFactory.getSocketFactory(), RMISocketFactory.getSocketFactory());
  65 }
  66
  67 public RegistryImpl(int port, RMIClientSocketFactory cf, RMIServerSocketFactory sf) throws RemoteException {
  68         super(new UnicastServerRef(new ObjID(ObjID.REGISTRY_ID), port, sf));
  69         // The following is unnecessary, because UnicastRemoteObject export itself automatically.
  70         //((UnicastServerRef)getRef()).exportObject(this);
  71 }
  72
  73 public Remote lookup(String name) throws RemoteException, NotBoundException, AccessException {
  74         Object obj = bindings.get(name);
  75         if (obj == null) {
  76                 throw new NotBoundException(name);
  77         }
  78         return ((Remote)obj);
  79 }
  80
  81 public void bind(String name, Remote obj) throws RemoteException, AlreadyBoundException, AccessException {
  82         if (bindings.containsKey(name)) {
  83                 throw new AlreadyBoundException(name);
  84         }
  85         bindings.put(name, obj);
  86 }
  87
  88 public void unbind(String name) throws RemoteException, NotBoundException, AccessException {
  89         Object obj = bindings.remove(name);
  90         if (obj == null) {
  91                 throw new NotBoundException(name);
  92         }
  93 }
  94
  95 public void rebind(String name, Remote obj) throws RemoteException, AccessException {
  96         bindings.put(name, obj);
  97 }
  98
  99 public String[] list() throws RemoteException, AccessException {
 100         int size = bindings.size();
 101         String[] strings = new String[size];
 102         Enumeration e = bindings.keys();
 103         for (int i = 0; i < size; i++) {
 104                 strings[i] = (String)e.nextElement();
 105         }
 106         return (strings);
 107 }
 108
 109 public static void version() {
 110         System.out.println("rmiregistry ("
 111                            + System.getProperty("java.vm.name")
 112                            + ") "
 113                            + System.getProperty("java.vm.version"));
 114         System.out.println("Copyright 2005 Free Software Foundation, Inc.");
 115         System.out.println("This is free software; see the source for copying conditions.  There is NO");
 116         System.out.println("warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.");
 117         System.exit(0);
 118 }
 119
 120 public static void help() {
 121         System.out.println(
 122 "Usage: rmiregistry [OPTION | PORT]\n" +
 123 "\n" +
 124 "    --help                Print this help, then exit\n" +
 125 "    --version             Print version number, then exit\n");
 126         System.exit(0);
 127 }
 128
 129 public static void main(String[] args) {
 130         int port = Registry.REGISTRY_PORT;
 131         if (args.length > 0) {
 132                 if (args[0].equals("--version")) {
 133                         version();
 134                 }
 135                 else if (args[0].equals("--help")) {
 136                         help();
 137                 }
 138                 try {
 139                         port = Integer.parseInt(args[0]);
 140                 }
 141                 catch (NumberFormatException _) {
 142                         System.err.println("Bad port number - using default");
 143                 }
 144         }
 145
 146         try {
 147                 Registry impl = LocateRegistry.createRegistry(port);
 148         }
 149         catch (RemoteException _) {
 150                 System.err.println("Registry failed");
 151         }
 152 }
 153
 154 }