/// <summary>
/// Description: Return Instance Of POCO Classes Based On DTO Format
/// </summary>
/// <param name="dtoFormat">Enum For DTO Format</param>
/// <param name="censusDAO">Instance Of CensusDAO</param>
/// <returns>Returns Object Based On DTOFormat</returns>
public object GetDTO(DTO dtoFormat, CensusDAO censusDAO)
{
if (dtoFormat.Equals(DTO.INDIA_CENSUS))
{
return(new IndianCensus(censusDAO.State, censusDAO.Population, censusDAO.AreaInSqKm, censusDAO.PopulationDensity));
}
if (dtoFormat.Equals(DTO.INDIA_STATE_CODE))
{
return(new IndianStateCode(censusDAO.State, censusDAO.SrNo, censusDAO.TIN, censusDAO.StateCode));
}
return(new USCensus(censusDAO.State, censusDAO.StateCode, censusDAO.Population, censusDAO.WaterArea, censusDAO.HousingUnits, censusDAO.HousingDensity, censusDAO.LandArea, censusDAO.AreaInSqKm, censusDAO.PopulationDensity));
}
/// <summary>
/// Description: Load Census data From CSV File And Return Dictionary Of String as Key And Census DAO as Value.
/// </summary>
/// <typeparam name="T"> Generic Type </typeparam>
/// <param name="headers"> CSVFile Headers </param>
/// <param name="csvFilePath"> CSVFile Path </param>
/// <returns> Dictionary Of String As key And CensusDAO As Value </returns>
public Dictionary <object, CensusDAO> ReadCSVFile <T>(string headers, string csvFilePath)
{
if (!File.Exists(csvFilePath))
{
throw new CSVFilesReaderException("File Not Found", CSVFilesReaderException.CSVReaderExceptionType.FILE_NOT_FOUND);
}
if (Path.GetExtension(csvFilePath) != ".csv")
{
throw new CSVFilesReaderException("Incorrect File Format", CSVFilesReaderException.CSVReaderExceptionType.INCORRECT_FILE_FORMAT);
}
string[] csvFileData = File.ReadAllLines(csvFilePath);
if (csvFileData[0] != headers)
{
throw new CSVFilesReaderException("Incorrect Headers", CSVFilesReaderException.CSVReaderExceptionType.INCORRECT_HEADER);
}
foreach (string record in csvFileData.Skip(1))
{
if (!record.Contains(","))
{
throw new CSVFilesReaderException("File Contains Wrong Delimiter", CSVFilesReaderException.CSVReaderExceptionType.INCORRECT_DELIMITER);
}
}
using (var readers = new StreamReader(csvFilePath, Encoding.Default))
using (var csv = new CsvReader(readers, System.Globalization.CultureInfo.CurrentCulture))
{
return(csv.GetRecords <T>().ToList().ToDictionary(x => x.GetType().GetProperty("State").GetValue(x, null), x => CensusDAO.GetDAO(x)));
}
}
