package com.nsi.components.resource;

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

import com.nsi.control.exceptions.GeneralFailureException;
import com.nsi.control.exceptions.NsiEventException;
import com.nsi.control.web.ModelManager;
import com.nsi.control.web.ModelUpdateListener;
import com.nsi.util.ValHelper;

public class ResourceWebImpl extends ResourceModel implements ModelUpdateListener
{
	private static Log log = LogFactory.getLog(ResourceWebImpl.class);
	/**
	 * constructor of ResourceWebImpl
	 * @param mm
	 */
	public ResourceWebImpl(ModelManager mm)
	{
		mm.addListener("com.nsi.components.resource.ResourceBackHandler", this);
	}
	public void performUpdate() throws GeneralFailureException
	{
		String resourceid = getResourceid();
		if ( ValHelper.getInstance().isNotNullAndEmpty(resourceid))
		{
			try
			{
				ResourceSrc src = new ResourceSrc();
				src.setResourceid(resourceid);
				if( src.isResouceExists(resourceid))
				{
					src.load();
					copy( src.getInfo());
				}
			}
			catch(NsiEventException nsievex)
			{
				log.error("performUpdate() -- caught NsiEventException : ", nsievex );
				throw new GeneralFailureException( "performUpdate() -- caught NsiEventException : ", nsievex) ;
			}
			catch(GeneralFailureException gex)
			{
				log.error("performUpdate() -- caught GeneralFailureException : ", gex );
				throw gex;
			}
		}
	}
}