// remote Fortune client
//
// This client obtains the port number from a web server.
//
// Usage: HTTPClient [URL]
//
// If URL is not specified, a default URL is used.
//
// R. Perry, June 1998

import java.io.*;
import java.rmi.*;
import java.net.*;

public class HTTPClient {

  public static void main(String args[]) throws Exception
  {
    String url = "http://www.ece.vill.edu/~perry/research/rmi-example2/port";

    if( args.length > 0)
      url = args[0];

    System.out.println( "HTTPClient: using URL: " + url);

    // Create and install the security manager
    //
    // skip to avoid creating a security policy file for JDK 1.2 - System.setSecurityManager(new RMISecurityManager());

    URL u = new URL( url);
    String serverhost = u.getHost();
    BufferedReader in = new BufferedReader( new InputStreamReader( u.openStream()));

    // an integer port number should be returned by the URL
    //
    int port = Integer.parseInt(in.readLine());
    in.close();

    String rmi = "rmi://" + serverhost + ":" + port + "/FortuneServer";

    System.out.println( "HTTPClient: contacting " + rmi);

    try
      {
        Fortune f = (Fortune) Naming.lookup( rmi);
        System.out.println("HTTPClient: Message: " + f.getFortune());
      }
    catch (Exception e) {
      System.out.println( "HTTPClient: " + e);
      System.exit(1);
    }

  }
}