delete.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.Meeting;

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

	/**
	 * 
	 */
	private static final long serialVersionUID = 8352534636360777902L;

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

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

	}

	@Override
	public String excute(String[] args) throws ParameterException,
			ParserConfigurationException, SAXException, IOException,
			ParseException, SecurityException, TransformerException {
		// TODO Auto-generated method stub
		XMLHelper.getInstance().read();
		if (args.length == 3) {
			if (!Service.getInstance().login(args[0], args[1]))
				throw new ParameterException("User do not exist.");
			Meeting mt = Service.getInstance().getMeetingByID(args[0], args[2]);
			
			if(mt != null){
				Service.getInstance().vecMeeting.remove(mt);
				System.out.println("\nDelete meeting:\n" + mt.toString());
				XMLHelper.getInstance().write(Service.getInstance().getPath());
				return "\nDelete meeting:\n" + mt.toString();
			}
			return null;
		}else
			throw new ParameterException("Command invalid.");
	}

}