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/***************************************************************************
* Copyright (c) 2004 - 2007 Eike Stepper, Germany.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
**************************************************************************/
package org.eclipse.net4j.buddies.internal.server;
import org.eclipse.net4j.IChannel;
import org.eclipse.net4j.IProtocol;
import org.eclipse.net4j.buddies.internal.protocol.Account;
import org.eclipse.net4j.buddies.internal.protocol.BuddyStateNotification;
import org.eclipse.net4j.buddies.internal.server.bundle.OM;
import org.eclipse.net4j.buddies.internal.server.protocol.BuddyRemovedNotification;
import org.eclipse.net4j.buddies.protocol.IAccount;
import org.eclipse.net4j.buddies.protocol.ISession;
import org.eclipse.net4j.buddies.protocol.IBuddyStateChangedEvent;
import org.eclipse.net4j.buddies.server.IBuddyAdmin;
import org.eclipse.net4j.internal.util.lifecycle.Lifecycle;
import org.eclipse.net4j.internal.util.om.trace.ContextTracer;
import org.eclipse.net4j.util.ObjectUtil;
import org.eclipse.net4j.util.event.IEvent;
import org.eclipse.net4j.util.event.IListener;
import org.eclipse.net4j.util.lifecycle.ILifecycleEvent;
import org.eclipse.net4j.util.lifecycle.LifecycleUtil;
import java.util.HashMap;
import java.util.Map;
/**
* @author Eike Stepper
*/
public class BuddyAdmin extends Lifecycle implements IBuddyAdmin, IListener
{
public static final BuddyAdmin INSTANCE = new BuddyAdmin();
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG, BuddyAdmin.class);
private Map<String, IAccount> accounts = new HashMap<String, IAccount>();
private Map<String, ISession> sessions = new HashMap<String, ISession>();
public BuddyAdmin()
{
LifecycleUtil.activate(this);
}
public Map<String, IAccount> getAccounts()
{
return accounts;
}
public Map<String, ISession> getSessions()
{
return sessions;
}
public synchronized ISession openSession(IChannel channel, String userID, String password)
{
if (sessions.containsKey(userID))
{
return null;
}
IAccount account = accounts.get(userID);
if (account != null)
{
if (!account.authenticate(password))
{
return null;
}
}
else
{
account = new Account(userID, password);
accounts.put(userID, account);
}
ServerBuddy buddy = new ServerBuddy(account);
buddy.addListener(this);
ServerSession session = new ServerSession(channel, buddy);
((IProtocol)channel.getReceiveHandler()).setInfraStructure(session);
session.addListener(this);
buddy.setSession(session);
LifecycleUtil.activate(session);
if (TRACER.isEnabled()) TRACER.trace("Opened session: " + userID);
sessions.put(userID, session);
return session;
}
public void notifyEvent(IEvent event)
{
if (event.getSource() instanceof ServerSession)
{
if (event instanceof ILifecycleEvent)
{
if (((ILifecycleEvent)event).getKind() == ILifecycleEvent.Kind.DEACTIVATED)
{
String userID = ((ServerSession)event.getSource()).getSelf().getUserID();
synchronized (this)
{
ServerSession removed = (ServerSession)sessions.remove(userID);
if (removed != null)
{
removed.removeListener(this);
removed.getSelf().removeListener(this);
for (ISession session : sessions.values())
{
try
{
new BuddyRemovedNotification(session.getChannel(), userID).send();
}
catch (Exception ex)
{
OM.LOG.error(ex);
}
}
}
}
}
}
}
else if (event.getSource() instanceof ServerBuddy)
{
if (event instanceof IBuddyStateChangedEvent)
{
IBuddyStateChangedEvent e = (IBuddyStateChangedEvent)event;
synchronized (this)
{
for (ISession session : sessions.values())
{
try
{
if (!ObjectUtil.equals(session.getSelf(), e.getBuddy()))
{
new BuddyStateNotification(session.getChannel(), e.getBuddy().getUserID(), e.getNewState()).send();
}
}
catch (Exception ex)
{
OM.LOG.error(ex);
}
}
}
}
}
}
}
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