ClientChangeList.java

package se.chalmers.dat255.grupp12;

import java.util.List;

import java.sql.SQLException;
import java.util.ArrayList;

/**
 * Created with IntelliJ IDEA.
 * User: Patrik
 * Date: 10/10/13
 * Time: 3:09 PM
 * To change this template use File | Settings | File Templates.
 */
public class ClientChangeList {

	private List<Modification.Change> idChanges = new ArrayList<Modification.Change>();
	private List<TaskList> userLists = new ArrayList<TaskList>();

	public ClientChangeList(){}

	/**
	 * Adds a Change to to the list of idChanges
	 * @param oldValue - The old id
	 * @param newValue - The new id
	 */
	public void addIdChange(int oldValue, int newValue) {
		Modification.Change change = new Modification.Change("listIdChange",
															Integer.toString(oldValue), Integer.toString(newValue));
		idChanges.add(change);
	}

	/**
	 * Create a list containing all the lists a user has access to
	 *
	 * @param user - The user
	 */
	public void setUserLists(User user) {
		try {
			userLists  = Database.getInstance().getLists(user);
		} catch (SQLException e) {
			e.printStackTrace();
		} catch (DataNotFoundException e) {
			e.printStackTrace();
		}
	}

	/**
	 * Checks if the id of a modification differs from the new id
	 * and in that case returns the new id
	 *
	 * @param oldId - The old id of the modification
	 * @return - The new id if its different from the current one, otherwise the old id
	 */
	public int getNewId(int oldId) {
		for(Modification.Change change : idChanges) {
			if(Integer.parseInt(change.getFrom()) == oldId) {
				return Integer.parseInt(change.getTo());
			}
		}
		return oldId;
	}
}