README.md

CommandManager v0.1

Implements a simple command line interface.

Usage

To use this library, create Commands by extending the Command abstract class. Then create an instance of the CommandManager with System.in as the input stream and System.out as the output stream. Register each command in the manager with CommandManager.registerCommand(). Finally use CommandManager.startInterpreting() method to begin reading the users commands.

To stop interpreting the method CommandManager.stopInterpreting() can be called from inside a command. Example:

import java.io.*;
import net.dtw.command.*;

public class ExitCommand extends Command {
    
    private CommandManager manager;
    
    public ExitCommand(CommandManager manager) {
        this.manager = manager;
    }

    @Override
    protected void doCommand(String[] args, InputStream in, PrintStream out) throws IllegalArgumentException, IllegalArgumentCountException {
        if (args.length != 0) {
            throw new IllegalArgumentCountException();
        }
        manager.stopInterpreting();
    }
}