libjava/gnu/java/rmi/registry/RegistryImpl.java

   1 /*
   2   Copyright (c) 1996, 1997, 1998, 1999, 2002 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., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 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 package gnu.java.rmi.registry;
  39
  40 import java.rmi.registry.Registry;
  41 import java.rmi.registry.LocateRegistry;
  42 import java.rmi.RemoteException;
  43 import java.rmi.NotBoundException;
  44 import java.rmi.AccessException;
  45 import java.rmi.AlreadyBoundException;
  46 import java.rmi.Remote;
  47 import java.rmi.server.UnicastRemoteObject;
  48 import java.rmi.server.ObjID;
  49 import java.util.Hashtable;
  50 import java.util.Enumeration;
  51 import java.rmi.server.RMISocketFactory;
  52 import java.rmi.server.RMIClientSocketFactory;
  53 import java.rmi.server.RMIServerSocketFactory;
  54 import gnu.java.rmi.server.UnicastServerRef;
  55
  56 public class RegistryImpl
  57         extends UnicastRemoteObject implements Registry {
  58
  59 private Hashtable bindings = new Hashtable();
  60
  61 public RegistryImpl(int port) throws RemoteException {
  62         this(port, RMISocketFactory.getSocketFactory(), RMISocketFactory.getSocketFactory());
  63 }
  64
  65 public RegistryImpl(int port, RMIClientSocketFactory cf, RMIServerSocketFactory sf) throws RemoteException {
  66         super(new UnicastServerRef(new ObjID(ObjID.REGISTRY_ID), port, sf));
  67         // The following is unnecessary, because UnicastRemoteObject export itself automatically.
  68         //((UnicastServerRef)getRef()).exportObject(this);
  69 }
  70
  71 public Remote lookup(String name) throws RemoteException, NotBoundException, AccessException {
  72         Object obj = bindings.get(name);
  73         if (obj == null) {
  74                 throw new NotBoundException(name);
  75         }
  76         return ((Remote)obj);
  77 }
  78
  79 public void bind(String name, Remote obj) throws RemoteException, AlreadyBoundException, AccessException {
  80         if (bindings.containsKey(name)) {
  81                 throw new AlreadyBoundException(name);
  82         }
  83         bindings.put(name, obj);
  84 }
  85
  86 public void unbind(String name) throws RemoteException, NotBoundException, AccessException {
  87         Object obj = bindings.remove(name);
  88         if (obj == null) {
  89                 throw new NotBoundException(name);
  90         }
  91 }
  92
  93 public void rebind(String name, Remote obj) throws RemoteException, AccessException {
  94         bindings.put(name, obj);
  95 }
  96
  97 public String[] list() throws RemoteException, AccessException {
  98         int size = bindings.size();
  99         String[] strings = new String[size];
 100         Enumeration e = bindings.keys();
 101         for (int i = 0; i < size; i++) {
 102                 strings[i] = (String)e.nextElement();
 103         }
 104         return (strings);
 105 }
 106
 107 public static void version() {
 108         System.out.println("rmiregistry ("
 109                            + System.getProperty("java.vm.name")
 110                            + ") "
 111                            + System.getProperty("java.vm.version"));
 112         System.out.println("Copyright 2002 Free Software Foundation, Inc.");
 113         System.out.println("This is free software; see the source for copying conditions.  There is NO");
 114         System.out.println("warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.");
 115         System.exit(0);
 116 }
 117
 118 public static void help() {
 119         System.out.println(
 120 "Usage: rmiregistry [OPTION | PORT]\n" +
 121 "\n" +
 122 "    --help                Print this help, then exit\n" +
 123 "    --version             Print version number, then exit\n");
 124         System.exit(0);
 125 }
 126
 127 public static void main(String[] args) {
 128         int port = Registry.REGISTRY_PORT;
 129         if (args.length > 0) {
 130                 if (args[0].equals("--version")) {
 131                         version();
 132                 }
 133                 else if (args[0].equals("--help")) {
 134                         help();
 135                 }
 136                 try {
 137                         port = Integer.parseInt(args[0]);
 138                 }
 139                 catch (NumberFormatException _) {
 140                         System.err.println("Bad port number - using default");
 141                 }
 142         }
 143
 144         try {
 145                 Registry impl = LocateRegistry.createRegistry(port);
 146         }
 147         catch (RemoteException _) {
 148                 System.err.println("Registry failed");
 149         }
 150 }
 151
 152 }