hoteltextmode.java

基于Java的软件信息系统－项目管理

package ui;

import core.*;
import java.io.*;
import java.util.*;

public class HotelTextMode
{
    public static void main (String [] args)
    {
        CommandMap commands = new CommandMap ();
	if (args.length == 0)
	    doTextMode (commands);
	else
	{
	    doCommandLine (commands, args);
	}
    }

    private static void doTextMode (CommandMap commands)
    {
        BufferedReader in =
            new BufferedReader (new InputStreamReader (System.in));
        while (true)
        {
            try {
                System.out.print (">");
                String line = in.readLine ();
                Command cmd = commands.createTextCommand (line, 
						      null);
                cmd.setParameters ();
                cmd.execute ();
            } catch (IOException e) 
            {
                System.err.println ("Error reading line.");
            }
        }
    }

    private static void doCommandLine (CommandMap commands, String [] args)
    {
	List parameters = listFromArray (args);
	String cmdName = (String) parameters.get(0);
	parameters.remove (0);

        Command cmd = commands.createTextCommand (cmdName,
                                              parameters);
	cmd.execute ();
    }

    public static List listFromArray (Object [] arr)
    {
	List answer = new ArrayList ();
	for (int i = 0; i < arr.length; i++)
	{
	    answer.add (arr[i]);
	}
	return answer;
    }
}