clientprogram.java

来自「codebook!」· Java 代码 · 共 52 行

package com.darwinsys.client;

import com.darwinsys.callback.*;

import java.io.*;
import java.rmi.*;
import java.rmi.server.*;

/** This class tries to be all things to all people:
 *	- main program for client to run.
 *	- "server" program for remote to use Client of
 */
public class ClientProgram extends UnicastRemoteObject implements Client
{
	protected final static String host = "localhost";

	/** No-argument constructor required as we are a Remote Object */
	public ClientProgram() throws RemoteException {
	}

	/** This is the main program, just to get things started. */
	public static void main(String[] argv) throws IOException, NotBoundException {
		new ClientProgram().do_the_work();
	}

	/** This is the server program part */
	private void do_the_work() throws IOException, NotBoundException {

		System.out.println("Client starting");

		// First, register us with the RMI registry
		// Naming.rebind("Client", this);
	
		// Now, find the server, and register with it
		System.out.println("Finding server");
		TickerServer server = 
			(TickerServer)Naming.lookup("rmi://" + host + "/" +
			TickerServer.LOOKUP_NAME);

		// This should cause the server to call us back.
		System.out.println("Connecting to server");
		server.connect(this);

		System.out.println("Client program ready.");
	}

	/** This is the client callback */
	public void alert(String message) throws RemoteException {
		System.out.println(message);
	}
}