/*
* 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.bam.manager;
import java.util.concurrent.atomic.AtomicLong;
import com.caucho.bam.actor.AbstractAgent;
import com.caucho.bam.actor.ActorSender;
import com.caucho.bam.actor.Agent;
import com.caucho.bam.actor.ManagedActor;
import com.caucho.bam.actor.SimpleActor;
import com.caucho.bam.broker.ManagedBroker;
import com.caucho.bam.mailbox.Mailbox;
import com.caucho.bam.mailbox.MailboxType;
import com.caucho.bam.mailbox.MultiworkerMailbox;
import com.caucho.bam.mailbox.PassthroughMailbox;
import com.caucho.bam.query.QuerySender;
import com.caucho.bam.stream.MessageStream;
import com.caucho.bam.stream.NullActor;
import com.caucho.util.Alarm;
/**
* Broker is the hub which routes messages to actors.
*/
public class SimpleBamManager implements BamManager
{
private final AtomicLong _sequence = new AtomicLong(Alarm.getCurrentTime());
private ManagedBroker _broker;
public SimpleBamManager(ManagedBroker broker)
{
_broker = broker;
if (broker == null)
throw new NullPointerException();
}
@Override
public ManagedBroker getBroker()
{
return _broker;
}
/**
* Adds a mailbox.
*/
@Override
public void addMailbox(Mailbox mailbox)
{
getBroker().addMailbox(mailbox);
}
/**
* Removes a mailbox.
*/
@Override
public void removeMailbox(Mailbox mailbox)
{
getBroker().removeMailbox(mailbox);
}
/* (non-Javadoc)
* @see com.caucho.bam.manager.BrokerManager#addActor(com.caucho.bam.actor.Actor)
*/
@Override
public void addActor(String address,
ManagedActor actor)
{
actor.setAddress(address);
actor.setBroker(getBroker());
Mailbox mailbox = createMailbox(address,
actor.getActor(),
MailboxType.DEFAULT);
actor.setMailbox(mailbox);
addMailbox(mailbox);
}
/**
* Creates an agent
*/
// @Override
public Agent createAgent(MessageStream actorStream)
{
return createAgent(actorStream, MailboxType.DEFAULT);
}
/**
* Creates an agent
*/
// @Override
public Agent createAgent(MessageStream actorStream,
MailboxType mailboxType)
{
Mailbox mailbox = createMailbox(actorStream.getAddress(),
actorStream,
mailboxType);
Agent agent = new AbstractAgent(actorStream.getAddress(),
mailbox,
getBroker());
addMailbox(mailbox);
return agent;
}
protected Mailbox createMailbox(MessageStream actorStream,
MailboxType mailboxType)
{
return createMailbox(actorStream.getAddress(), actorStream, mailboxType);
}
protected Mailbox createMailbox(String address,
MessageStream actorStream,
MailboxType mailboxType)
{
switch (mailboxType) {
case NON_QUEUED:
return new PassthroughMailbox(address, actorStream, getBroker());
default:
return new MultiworkerMailbox(address, actorStream, getBroker(), 5);
}
}
@Override
public Mailbox createClient(Mailbox next,
String uid,
String resource)
{
String address = null;
if (uid == null)
uid = Long.toHexString(_sequence.incrementAndGet());
if (uid.indexOf('@') < 0)
uid = uid + '@' + getBroker().getAddress();
if (resource != null) {
address = uid + "/" + resource;
Mailbox mailbox = getBroker().getMailbox(address);
if (mailbox != null)
address = uid + "/" + resource + "-" + Long.toHexString(_sequence.incrementAndGet());
}
else {
address = uid + "/" + Long.toHexString(_sequence.incrementAndGet());
}
Mailbox mailbox = new PassthroughMailbox(address, next, getBroker());
addMailbox(mailbox);
return mailbox;
}
@Override
public ActorSender createClient(String uid,
String resource)
{
String address = null;
if (uid == null)
uid = Long.toHexString(_sequence.incrementAndGet());
if (uid.indexOf('@') < 0)
uid = uid + '@' + getBroker().getAddress();
if (resource != null) {
address = uid + "/" + resource;
Mailbox mailbox = getBroker().getMailbox(address);
if (mailbox != null)
address = uid + "/" + resource + "-" + Long.toHexString(_sequence.incrementAndGet());
}
else {
address = uid + "/" + Long.toHexString(_sequence.incrementAndGet());
}
SimpleActor actor = new SimpleActor(address, getBroker());
addActor(address, actor);
return actor.getSender();
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + getBroker().getAddress() + "]";
}
}