package com.nsi.control.backend.handles;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.nsi.control.event.NsiEvent;

public final class ModelUpdateManager
{
	private static Log log = LogFactory.getLog(ModelUpdateManager.class);
	/**
	 * private constructor of ModelUpdateManager, prevent instantiation
	 */
	private ModelUpdateManager()
	{
	}
	private static class ModelUpdateManagerHolder
	{
		static final ModelUpdateManager modelUptManager = new ModelUpdateManager();
	}
	/**
	 * @return an instance of ModelUpdateManager
	 */
	public static ModelUpdateManager getInstance()
	{
		return ModelUpdateManagerHolder.modelUptManager;
	}
	public List<String> getUpdatedModels(NsiEvent ev)
	{
		List<String> modelList = new ArrayList<String>();
		String backendhandlename = ev.getHandleName();
		log.debug("getUpdatedModels() -- backendhandlename[" + backendhandlename + "]");
		modelList.add(backendhandlename);
		return modelList;
	}
}