package com.nsi.components.util;

import java.sql.Connection;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

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

import com.nsi.components.util.info.ProjectStatusInfo;
import com.nsi.control.exceptions.NsiEventException;
import com.nsi.persistence.DataSrcUtil;
import com.nsi.persistence.IsqlDataSource;
import com.nsi.util.ValHelper;

public final class ProjectStatusInfoUtil
{
	private static Log log = LogFactory.getLog(ProjectStatusInfoUtil.class);
	/**
	 * private constructor of ProjectStatusInfoUtil, prevent instantiation
	 */
	private ProjectStatusInfoUtil()
	{
	}
	private static class ProjectStatusInfoUtilHolder
	{
		static final ProjectStatusInfoUtil projectStatusInfoUtil = new ProjectStatusInfoUtil();
	}
	/**
	 * @return an instance of ProjectStatusInfoUtil
	 */
	public static ProjectStatusInfoUtil getInstance()
	{
		return ProjectStatusInfoUtilHolder.projectStatusInfoUtil;
	}
	public List<ProjectStatusInfo> getStatuslist()
	{
		List<ProjectStatusInfo> list = new ArrayList<ProjectStatusInfo>();
		List<Map<String,String>> result = new ArrayList<Map<String,String>>();
		String sSql = "select projstatusid, projstatus from ct_proj_status order by projstatus";
		try
		{
			IsqlDataSource src = DataSrcUtil.getInstance().getDataSource();
			Connection conn = null;
			try
			{
				conn = src.getConnection();
				result = src.executeRetrieve(conn, sSql);
				src.closeConn(conn);
			}
			catch( SQLException se )
			{
				log.error( "getStatuslist() caught SQLException: ", se );
			}
			catch( Exception ex )
			{
				log.error( "getStatuslist() caught Exception: ", ex );
			}
			finally
			{
				src.closeConn(conn);
			}
			if( !result.isEmpty())
			{
				int size = result.size();
				for( int i=0;i<size;i++)
				{
					Map<String,String> resultMap = result.get(i);
					ProjectStatusInfo info = new ProjectStatusInfo();
					info.setProjstatusid(ValHelper.getInstance().getValue(resultMap, "projstatusid"));
					info.setProjstatus(ValHelper.getInstance().getValue(resultMap, "projstatus"));
					list.add( info);
				}
			}
		}
		catch( NsiEventException nsiex )
		{
			log.error( "getStatuslist() caught NsiEventException: ", nsiex );
		}
		return list;
	}
}