/*
 * Copyright (C) The Apache Software Foundation. All rights reserved.
 *
 * This software is published under the terms of the Apache Software License
 * version 1.1, a copy of which has been included with this distribution in
 * the LICENSE file.
 */
package org.apache.james.pop3server;

import org.apache.avalon.cornerstone.services.connection.ConnectionHandler;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.component.Component;
import org.apache.james.core.AbstractJamesService;

import java.net.InetAddress;
import java.net.UnknownHostException;
/**
 * <p>Accepts POP3 connections on a server socket and dispatches them to POP3Handlers.</p>
 *
 * <p>Also responsible for loading and parsing POP3 specific configuration.</p>
 *
 * @version 1.0.0, 24/04/1999
 * @author  Federico Barbieri <scoobie@pop.systemy.it>
 * @author  <a href="mailto:danny@apache.org">Danny Angus</a>
 * @author Peter M. Goldstein <farsight@alum.mit.edu>
 */
public class POP3Server extends AbstractJamesService implements Component {

    /**
     * The number of bytes to read before resetting
     * the connection timeout timer.  Defaults to
     * 20 KB.
     */
    private int lengthReset = 20 * 1024;

    /**
     * @see org.apache.avalon.framework.configuration.Configurable#configure(Configuration)
     */
    public void configure(final Configuration configuration) throws ConfigurationException {
        super.configure(configuration);
        if (isEnabled()) {
            Configuration handlerConfiguration = configuration.getChild("handler");
            lengthReset = handlerConfiguration.getChild("lengthReset").getValueAsInteger(lengthReset);
        }
    }

    /**
     * @see org.apache.james.core.AbstractJamesService#getDefaultPort()
     */
     protected int getDefaultPort() {
        return 110;
     }

    /**
     * @see org.apache.james.core.AbstractJamesService#getServiceType()
     */
    public String getServiceType() {
        return "POP3 Service";
    }

    /**
     * @see org.apache.avalon.cornerstone.services.connection.AbstractHandlerFactory#newHandler()
     */
    protected ConnectionHandler newHandler()
            throws Exception {
        POP3Handler theHandler = new POP3Handler();
        theHandler.setHelloName(helloName);
        theHandler.setTimeoutData(timeout, lengthReset);
        theHandler.setThreadPool(threadPool);
        return theHandler;
    }

}