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Java NIO framework

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/*
 * Copyright (C) 2013 Sergey Zubarev, [email protected]
 *
 * This file is a part of JS-Collider framework.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */

package org.jsl.collider;

import java.net.InetSocketAddress;

public abstract class Acceptor extends SessionEmitter
{
    public Acceptor()
    {
        this( new InetSocketAddress(0) );
    }

    public Acceptor( InetSocketAddress addr )
    {
        super( addr );
    }

    /**
     * Creates Session.Listener instance to be linked with the session.
     * Called by framework, derived class supposed to override it.
     * METHOD IS NOT [MT] SAFE, can be called concurrently in a number of threads.
     * Connection will be closed if returns null, but any data
     * scheduled with sendData call before return will be sent.
     */
    public abstract Session.Listener createSessionListener( Session session );

    /**
     * Called by framework right before the acceptor is ready to accept connections.
     * It is still safe to remove the Acceptor instance from the collider
     * within this method, no one connection will be accepted then.
     */
    public void onAcceptorStarted( Collider collider, int localPort )
    {
    }
}