package httpserver;

import java.net.*;

import java.io.*;

public class HttpServer {

// Use a non-privileged port to avoid root.

public static final int DEFAULT_HTTP_PORT = 8080;

// Use the current directory by default.

public static final String DEFAULT_DIRECTORY = ".";

// 30 second timeout.

public static final int DEFAULT_TIMEOUT = 30;

public static void main(String[] args) throws IOException {

int http_port = DEFAULT_HTTP_PORT;

if (args.length > 1) {

try {

http_port = Integer.parseInt(args[1]);

} catch (NumberFormatException nfe) {

System.out.println("Invalid HTTP port: " + args[1]);

System.exit(-2);

}

}

String root_directory = DEFAULT_DIRECTORY;

if (args.length > 0) {

root_directory = args[0];

}

System.out.println(String.format(

"Listening on Port %1$d, serving from '%2$s'.", http_port, root_directory));

RequestHandler defaultHandler = new RequestHandler(root_directory);

long connnectionCounter = 0;

try (ServerSocket serverSocket = new ServerSocket(http_port)) {

while (true) {

new HttpServerThread(serverSocket.accept(), defaultHandler, ++connnectionCounter).start();

}

} catch (IOException e) {

System.err.println("Could not listen on port " + http_port);

System.exit(-1);

}

}

}