| /* RegistryImpl.java -- the RMI registry implementation |
| Copyright (c) 1996, 1997, 1998, 1999, 2002, 2005, 2006 |
| Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.classpath.tools.rmi.registry; |
| |
| import gnu.classpath.tools.rmi.Persistent; |
| import gnu.classpath.tools.rmi.REGISTRY; |
| |
| import java.rmi.AccessException; |
| import java.rmi.AlreadyBoundException; |
| import java.rmi.NotBoundException; |
| import java.rmi.Remote; |
| import java.rmi.RemoteException; |
| import java.rmi.registry.Registry; |
| import java.util.ArrayList; |
| import java.util.Map; |
| |
| /** |
| * The optionally persistent registry implementation. |
| * |
| * @author Audrius Meskauskas (audriusa@bioinformatics.org) |
| */ |
| public class RegistryImpl implements Registry |
| { |
| /** |
| * The binding table. |
| */ |
| Map bindings; |
| |
| /** |
| * Create the registry implementation that uses the given bidirectinal |
| * table to keep the data. |
| */ |
| public RegistryImpl(Map aTable) |
| { |
| bindings = aTable; |
| } |
| |
| /** @inheritDoc */ |
| public Remote lookup(String name) throws RemoteException, NotBoundException, |
| AccessException |
| { |
| Object obj = bindings.get(name); |
| if (obj == null) |
| throw new NotBoundException(name); |
| return ((Remote) obj); |
| } |
| |
| /** @inheritDoc */ |
| public void bind(String name, Remote obj) throws RemoteException, |
| AlreadyBoundException, AccessException |
| { |
| if (REGISTRY.verbose) |
| System.out.println("Bind "+name); |
| if (bindings.containsKey(name)) |
| throw new AlreadyBoundException(name); |
| bindings.put(name, obj); |
| } |
| |
| /** @inheritDoc */ |
| public void unbind(String name) throws RemoteException, NotBoundException, |
| AccessException |
| { |
| if (name.equals(REGISTRY.STOP)) |
| { |
| if (bindings instanceof Persistent) |
| ((Persistent) bindings).writeContent(); |
| // Terminate in 10 seconds. |
| System.out.println("Shutdown command received. Will terminate in 10 s"); |
| Persistent.timer.schedule(new Persistent.ExitTask(), 10000); |
| } |
| else |
| { |
| if (REGISTRY.verbose) |
| System.out.println("Unbind "+name); |
| |
| if (!bindings.containsKey(name)) |
| throw new NotBoundException(name); |
| else |
| bindings.remove(name); |
| } |
| } |
| |
| /** @inheritDoc */ |
| public void rebind(String name, Remote obj) throws RemoteException, |
| AccessException |
| { |
| if (REGISTRY.verbose) |
| System.out.println("Rebind "+name); |
| bindings.put(name, obj); |
| } |
| |
| /** @inheritDoc */ |
| public String[] list() throws RemoteException, AccessException |
| { |
| // Create a separated array to prevent race conditions. |
| ArrayList keys = new ArrayList(bindings.keySet()); |
| int n = keys.size(); |
| String[] rt = new String[n]; |
| for (int i = 0; i < n; i++) |
| rt[i] = (String) keys.get(i); |
| return rt; |
| } |
| } |