// **********************************************************************
//
// <copyright>
//
// BBN Technologies
// 10 Moulton Street
// Cambridge, MA 02138
// (617) 873-8000
//
// Copyright (C) BBNT Solutions LLC. All rights reserved.
//
// </copyright>
// **********************************************************************
//
// $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/layer/link/LinkServerStarter.java,v $
// $RCSfile: LinkServerStarter.java,v $
// $Revision: 1.2.2.1 $
// $Date: 2004/10/14 18:27:08 $
// $Author: dietrick $
//
// **********************************************************************
package com.bbn.openmap.layer.link;
import java.net.ServerSocket;
import java.net.Socket;
/**
* The LinkServerStarter is the object that listens for Link clients
* on a specific port. If a Link client contacts it, it uses the
* startNewServer method to create a LinkServer to serve the client on
* it's own thread. If you want to create a new type of LinkServer,
* you should also create a new LinkServerStarter to launch it
* properly. Generally, the main() and startNewServer() methods are
* the only thing you would need to modify.
*/
public class LinkServerStarter {
/** Default port that the server starter listens to. */
public static final int DEFAULT_PORT = 3031;
/** The port being listened to. */
protected int serverPort;
/** Starts the LinkServerStarter listening to the default port. */
public LinkServerStarter() {
serverPort = DEFAULT_PORT;
}
/** Starts the LinkServerStarter listening to the specified port. */
public LinkServerStarter(int port) {
serverPort = port;
}
/** Set the port to listen for a connection request. */
public void setPort(int port) {
serverPort = port;
}
/** Get the port that is being listened to. */
public int getPort() {
return serverPort;
}
/**
* The method of the parent server that is listening for clients.
* When a contact is made, a child thread is spawned off to handle
* the client.
*/
public void run() {
try {
ServerSocket serverSocket = new ServerSocket(serverPort);
Socket socket;
System.out.println("LinkServerStarter: running on port "
+ serverPort);
while (true) {
socket = serverSocket.accept();
System.out.println("LinkServer: fielding connection");
((Thread) startNewServer(socket)).start();
}
} catch (java.io.IOException ioe) {
System.err.println("LinkServer: IOException while running:");
System.err.println(ioe);
}
}
/**
* This method gets called to create a new server to handle a new
* connection. Thread.start() will get called on the returned
* thread. This method should always get overridden.
*
* @param sock the socket connection
* @return a thread that will get started
* @see java.lang.Thread#start()
*/
public Thread startNewServer(Socket sock) {
return new LinkServer(sock);
}
/**
* Start up the server. This is the method to change if you want
* to customize how the LinkServer will handle clients - port,
* arguments, etc.
*/
public static void main(String[] argv) {
int pnumber = -1;
com.bbn.openmap.util.Debug.init();
for (int i = 0; i < argv.length; i++) {
if (argv[i].equals("-port") && argv.length > i + 1) {
try {
pnumber = Integer.parseInt(argv[i + 1]);
break;
} catch (NumberFormatException e) {
pnumber = -1;
}
}
}
if (pnumber < 0) {
System.out.println("Need to start the server with a port number.");
System.out.println("Usage: java com.bbn.openmap.layer.link.LinkServerStarter -port <port number>");
System.exit(0);
}
System.out.println("LinkServerStarter: Starting up on port " + pnumber
+ ".");
LinkServerStarter serverStarter = new LinkServerStarter(pnumber);
while (true) {
serverStarter.run();
}
}
}