/**
 * 
 */
package com.air.backend.util;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;

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

import com.air.exceptions.AirException;
import com.air.persistence.DataSrcUtil;
import com.air.persistence.IsqlDataSource;

/**
 * @author jelly_yang
 *
 */
public class DeleteUserUtil {

	private static Log log = LogFactory.getLog(QueryFightUtil.class);
	private DeleteUserUtil() {
		// TODO Auto-generated constructor stub
	}

	public static class  DeleteUserUtilHolder{
		static DeleteUserUtil deleteUserUtil = new DeleteUserUtil();
	}
	
	public static DeleteUserUtil getInstance(){
		return DeleteUserUtilHolder.deleteUserUtil;
	}
	
	public boolean deleteUser(String uId)throws AirException{
		int result = 0 ;
		String sSql = "delete from users where username='"+uId+"'";
		IsqlDataSource src = DataSrcUtil.getInstance().getDataSource();
		Connection conn = null;
		log.debug("retrieveFight() -- sSql["+ sSql+ "]");
		try
		{
			conn = src.getConnection();
			Statement stmt = conn.createStatement();
			result = src.executeUpdate(stmt, sSql);
		}
		catch(SQLException se)
		{
			log.error("deleteUser() caught SQLException: " + se);
		}
		catch(Exception ex)
		{
			log.error("deleteUser() caught Exception: " + ex);
		}
		finally
		{
			src.closeConn(conn);
		}
		if(result==0){
			return false;
		}
		return true;
	}
}