tcpendpoint.java

这是一个法律事务所系统源码

/*
 * $Header: /home/cvs/jakarta-tomcat/src/share/org/apache/tomcat/service/Attic/TcpEndpoint.java,v 1.11.2.2 2000/11/10 06:42:51 craigmcc Exp $
 * $Revision: 1.11.2.2 $
 * $Date: 2000/11/10 06:42:51 $
 *
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 1999 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact [e-mail].
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
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 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * [Additional notices, if required by prior licensing conditions]
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 */


package org.apache.tomcat.service;

import org.apache.tomcat.util.*;
import org.apache.tomcat.net.*;
import java.io.*;
import java.net.*;
import java.util.*;

/* Similar with MPM module in Apache2.0. Handles all the details related with
   "tcp server" functionality - thread management, accept policy, etc.
   It should do nothing more - as soon as it get a socket ( and all socket options
   are set, etc), it just handle the stream to ConnectionHandler.processConnection. (costin)
*/



/**
 * Handle incoming TCP connections.
 *
 * This class implement a simple server model: one listener thread accepts on a socket and
 * creates a new worker thread for each incoming connection.
 *
 * More advanced Endpoints will reuse the threads, use queues, etc.
 *
 * @author James Duncan Davidson [[e-mail]]
 * @author Jason Hunter [[e-mail]]
 * @author James Todd [[e-mail]]
 * @author [e-mail]
 * @author Gal Shachor [[e-mail]]
 */
public abstract class TcpEndpoint  { // implements Endpoint {

    private static StringManager sm = StringManager.getManager("org.apache.tomcat.service");

    private static final int BACKLOG = 100;
    private static final int TIMEOUT = 1000;

    private int backlog = BACKLOG;
    private int timeout = TIMEOUT;

    TcpConnectionHandler handler;

    private InetAddress inet;
    private int port;

    private ServerSocketFactory factory;
    private ServerSocket serverSocket;

    Runnable listener;
    boolean running = true;

    // -------------------- Configuration --------------------
    public int getPort() {
	    return port;
    }

    public void setPort(int port ) {
	    this.port=port;
    }

    public InetAddress getAddress() {
	    return inet;
    }

    public void setAddress(InetAddress inet) {
	    this.inet=inet;
    }

    public void setServerSocket(ServerSocket ss) {
	    serverSocket = ss;
    }

    public void setServerSocketFactory(  ServerSocketFactory factory ) {
	    this.factory=factory;
    }

    public void setConnectionHandler( TcpConnectionHandler handler ) {
    	this.handler=handler;
    }

    public TcpConnectionHandler getConnectionHandler() {
	    return handler;
    }

    /**
     * Allows the server developer to specify the backlog that
     * should be used for server sockets. By default, this value
     * is 100.
     */
    public void setBacklog(int backlog) {
	    this.backlog = backlog;
    }

    public int getBacklog() {
        return backlog;
    }

    /**
     * Sets the timeout in ms of the server sockets created by this
     * server. This method allows the developer to make servers
     * more or less responsive to having their server sockets
     * shut down.
     *
     * <p>By default this value is 1000ms.
     */
    public void setTimeout(int timeout) {
	    this.timeout = timeout;
    }

    // -------------------- Abstract methods --------------------

    public abstract void startEndpoint() throws IOException, InstantiationException;
    public abstract void stopEndpoint();
}