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

   1 /*
   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., 59 Temple Place, Suite 330, Boston, MA
  20 02111-1307 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 java.rmi.registry.Registry;
  42 import java.rmi.registry.LocateRegistry;
  43 import java.rmi.RemoteException;
  44 import java.rmi.NotBoundException;
  45 import java.rmi.AccessException;
  46 import java.rmi.AlreadyBoundException;
  47 import java.rmi.Remote;
  48 import java.rmi.server.UnicastRemoteObject;
  49 import java.rmi.server.ObjID;
  50 import java.util.Hashtable;
  51 import java.util.Enumeration;
  52 import java.rmi.server.RMISocketFactory;
  53 import java.rmi.server.RMIClientSocketFactory;
  54 import java.rmi.server.RMIServerSocketFactory;
  55 import gnu.java.rmi.server.UnicastServerRef;
  56
  57 public class RegistryImpl
  58         extends UnicastRemoteObject implements Registry {
  59
  60 private Hashtable bindings = new Hashtable();
  61
  62 public RegistryImpl(int port) throws RemoteException {
  63         this(port, RMISocketFactory.getSocketFactory(), RMISocketFactory.getSocketFactory());
  64 }
  65
  66 public RegistryImpl(int port, RMIClientSocketFactory cf, RMIServerSocketFactory sf) throws RemoteException {
  67         super(new UnicastServerRef(new ObjID(ObjID.REGISTRY_ID), port, sf));
  68         // The following is unnecessary, because UnicastRemoteObject export itself automatically.
  69         //((UnicastServerRef)getRef()).exportObject(this);
  70 }
  71
  72 public Remote lookup(String name) throws RemoteException, NotBoundException, AccessException {
  73         Object obj = bindings.get(name);
  74         if (obj == null) {
  75                 throw new NotBoundException(name);
  76         }
  77         return ((Remote)obj);
  78 }
  79
  80 public void bind(String name, Remote obj) throws RemoteException, AlreadyBoundException, AccessException {
  81         if (bindings.containsKey(name)) {
  82                 throw new AlreadyBoundException(name);
  83         }
  84         bindings.put(name, obj);
  85 }
  86
  87 public void unbind(String name) throws RemoteException, NotBoundException, AccessException {
  88         Object obj = bindings.remove(name);
  89         if (obj == null) {
  90                 throw new NotBoundException(name);
  91         }
  92 }
  93
  94 public void rebind(String name, Remote obj) throws RemoteException, AccessException {
  95         bindings.put(name, obj);
  96 }
  97
  98 public String[] list() throws RemoteException, AccessException {
  99         int size = bindings.size();
 100         String[] strings = new String[size];
 101         Enumeration e = bindings.keys();
 102         for (int i = 0; i < size; i++) {
 103                 strings[i] = (String)e.nextElement();
 104         }
 105         return (strings);
 106 }
 107
 108 public static void version() {
 109         System.out.println("rmiregistry ("
 110                            + System.getProperty("java.vm.name")
 111                            + ") "
 112                            + System.getProperty("java.vm.version"));
 113         System.out.println("Copyright 2005 Free Software Foundation, Inc.");
 114         System.out.println("This is free software; see the source for copying conditions.  There is NO");
 115         System.out.println("warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.");
 116         System.exit(0);
 117 }
 118
 119 public static void help() {
 120         System.out.println(
 121 "Usage: rmiregistry [OPTION | PORT]\n" +
 122 "\n" +
 123 "    --help                Print this help, then exit\n" +
 124 "    --version             Print version number, then exit\n");
 125         System.exit(0);
 126 }
 127
 128 public static void main(String[] args) {
 129         int port = Registry.REGISTRY_PORT;
 130         if (args.length > 0) {
 131                 if (args[0].equals("--version")) {
 132                         version();
 133                 }
 134                 else if (args[0].equals("--help")) {
 135                         help();
 136                 }
 137                 try {
 138                         port = Integer.parseInt(args[0]);
 139                 }
 140                 catch (NumberFormatException _) {
 141                         System.err.println("Bad port number - using default");
 142                 }
 143         }
 144
 145         try {
 146                 Registry impl = LocateRegistry.createRegistry(port);
 147         }
 148         catch (RemoteException _) {
 149                 System.err.println("Registry failed");
 150         }
 151 }
 152
 153 }