/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.hemp.servlet;
import com.caucho.bam.broker.ManagedBroker;
import com.caucho.bam.mailbox.Mailbox;
import com.caucho.util.L10N;
/**
* Manages the client stub for the link.
*/
public class ClientStubManager {
private static final L10N L = new L10N(ClientStubManager.class);
private final ManagedBroker _broker;
private final Mailbox _toLinkMailbox;
private Mailbox _clientStub;
public ClientStubManager(ManagedBroker broker,
Mailbox toLinkMailbox)
{
_broker = broker;
_toLinkMailbox = toLinkMailbox;
}
public String getAddress()
{
if (_clientStub != null)
return _clientStub.getAddress();
else
throw new IllegalStateException(L.l("{0}: Client stub has not been registered",
this));
}
public boolean isActive()
{
return _clientStub != null;
}
public void login(String uid, String resource)
{
if (_clientStub != null)
throw new IllegalStateException(L.l("{0}: Client stub alread exists",
this));
_clientStub = _broker.createClient(_toLinkMailbox, uid, resource);
}
public void logout()
{
Mailbox clientStub = _clientStub;
_clientStub = null;
if (clientStub != null)
_broker.removeMailbox(clientStub);
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + _toLinkMailbox + "]";
}
}