register.java

分布式议程管理系统

/**
 * 
 */
package sysu.agenda.command;

import java.io.IOException;
import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;
import java.text.ParseException;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;

import org.xml.sax.SAXException;

import sysu.agenda.ctrl.Service;
import sysu.agenda.ctrl.XMLHelper;
import sysu.agenda.exception.ParameterException;
import sysu.agenda.model.User;

/**
 * @author Administrator
 * 
 */
public class Register extends UnicastRemoteObject implements ICommand {

	/**
	 * 
	 */
	private static final long serialVersionUID = -8404297137772849350L;

	/**
	 * 
	 */
	public Register() throws RemoteException {
		// TODO Auto-generated constructor stub
	}

	public String excute(String[] args) throws ParameterException,
			ParserConfigurationException, SAXException, IOException,
			ParseException, SecurityException, TransformerException {
		// TODO Auto-generated method stub
		XMLHelper.getInstance().read();
		if (args.length == 2) {
			for (User user : Service.getInstance().vecUser)
				if (user.getName().compareTo(args[0]) == 0){
					//Service.getInstance().clear();
					throw new ParameterException("Username already exist.");
				}

			Service.getInstance().vecUser.add(new User(args[0], args[1]));
			System.out.println("Add new User: " + args[0] + "\n");
			XMLHelper.getInstance().write(Service.getInstance().getPath());
			return new String("Add new User: " + args[0] + "\n");
		} else{
			//Service.getInstance().clear();
			throw new ParameterException("Register Command has 2 arguments.");
		}
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {
			Register reg = new Register();
			String[] arg = { "zjlan", "123456" };
			reg.excute(arg);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

}