public void GetFields_StateUnderTest_ExpectedBehavior()
{
// Arrange
string line = ",AT,MLD,\"Mollersdorf, Baden\",\"Mollersdorf, Baden\",3,RL,--3-----,1301,,4801N 01618E,";
// Act
var result = CsvParseHelper.GetAllFields(
line);
// Assert
Assert.IsTrue(result.Length == 12);
// Arrange
line = "FunctionCode,FunctionDescription";
// Act
result = CsvParseHelper.GetAllFields(
line);
// Assert
Assert.IsTrue(result.Length == 2);
// Arrange
line = ",MA,MDT,Midelt,Midelt,KHN,AA,--3-----,1607,,3240N 00444W,\"";
// Act
result = CsvParseHelper.GetAllFields(
line);
// Assert
Assert.IsTrue(result.Length == 12);
}
public IEnumerable <DataCellCollection> GetDataRowEntries()
{
while (this._streamReader.EndOfStream == false)
{
yield return(this.BuildRow(CsvParseHelper.GetAllFields(this._streamReader.ReadLine())));
}
}
public bool Init()
{
this._logger.Log($"Preparing to Load Headers from {this._sourceFileName}", EventLevel.LogAlways);
FileInfo fileInfo = new FileInfo(this._sourceFileName);
this._logger.ShowTable($"File Properties {fileInfo.FullName}", new string[] { "Name", "Value" }, new List <string[]>
{
new string [] { nameof(fileInfo.Attributes), fileInfo.Attributes.ToString() },
new string [] { nameof(fileInfo.Length), (fileInfo.Length / 1024) + " KB" },
new string [] { nameof(fileInfo.CreationTime), fileInfo.CreationTime.ToString() },
new string [] { nameof(fileInfo.LastAccessTime), fileInfo.LastAccessTime.ToString() },
new string [] { nameof(fileInfo.Extension), fileInfo.Extension.ToString() },
}
);
//TODO : update to use IdiskIohandler
this._streamReader = new StreamReader(this._sourceFileName);
string headerLine = _streamReader.ReadLine();
string[] headerRow = CsvParseHelper.GetAllFields(headerLine);
this.Columns.AddRange(headerRow.Select(item => new Column()
{
Name = item
}).ToArray());
this._dataCleaner.CleanHeader(this.Columns);
this._logger.Log($"Loaded file Headers from {this._sourceFileName}", EventLevel.LogAlways);
return(true);
}
public bool PerformAutoClean(string dataSourceFileName, string csvTypeDef, int attempt)
{
string tempId = Guid.NewGuid().ToString().Replace("-", "") + ".csv";
this._logger.LogInformation($"Attempting AutoClean : operationId{tempId}");
if (this._diskIOHandler.FileExists(csvTypeDef))
{
// type based cleaning ; not implemented
Dictionary <string, List <KeyValuePair <string, string> > > dictionary = JsonConvert.DeserializeObject <Dictionary <string, List <KeyValuePair <string, string> > > >(this._diskIOHandler.FileReadAllText(csvTypeDef));
}
int index = 0;
using (StreamWriter streamWriter = new StreamWriter(this._diskIOHandler.FileWriteTextStream(tempId)))
{
using (StreamReader streamReader = new StreamReader(this._diskIOHandler.FileReadTextStream(dataSourceFileName)))
{
string line = streamReader.ReadLine();
string[] headerRow = CsvParseHelper.GetAllFields(line);
streamWriter.WriteLine(line);
while (streamReader.EndOfStream == false)
{
line = streamReader.ReadLine();
string[] data = CsvParseHelper.GetAllFields(line);
// treat data misalliggnment
if (data.Length != headerRow.Length)
{
string[] lines = this.TreatMisAlignment(tempId, index, headerRow, line, data);
foreach (string alignedLine in lines)
{
streamWriter.WriteLine(alignedLine);
}
}
else
{
streamWriter.WriteLine(string.Join(",", data));
}
index++;
}
}
}
this._diskIOHandler.FileCopy(dataSourceFileName, $"{dataSourceFileName}{tempId}.bak");
this._diskIOHandler.FileCopy(tempId, dataSourceFileName, true);
return(this.RunDataAnalysis(attempt));
}
public bool RunDataAnalysis(int attempt = 0)
{
if (attempt > 2)
{
this._logger.Log("Attempt Limit has reached , Aborting analiysys", EventLevel.Error);
return(false);
}
this._logger.LogInformation("Runing Analysis");
this._logger.LogInformation("Scanning using text parser started");
int csvLines = 0, textLines = 0, noError = 0;
using (StreamReader stream = new StreamReader(this._diskIOHandler.FileReadTextStream(this._runtimeSettings.DataSourceFileName)))
{
int headerCount = CsvParseHelper.GetAllFields(stream.ReadLine()).Length;
while (stream.EndOfStream == false)
{
string line = stream.ReadLine();
int cellcount = CsvParseHelper.GetAllFields(line).Length;
if (cellcount != headerCount)
{
this._logger.Log($"Error Data Alignment mismatch cellcount {cellcount } != headerCount {headerCount } att position {textLines} , line :{line}", EventLevel.Error);
noError++;
}
textLines += 1;
}
}
this._logger.LogInformation($"Scanning using text parser completed with {noError} errors ");
noError = 0;
this._logger.LogInformation("Scanning using csv parser started");
using (IDataSource dataSource = this._dataSourceFactory.GetDataSource(this._runtimeSettings.DataSourceFileName))
{
int headerCount = dataSource.GetHeaders().Length;
foreach (DataCellCollection row in dataSource.GetDataRowEntries())
{
if (row.Cells.Count != headerCount)
{
this._logger.Log($"Error Data Alignment mismatch via csv parser cellcount {row.Cells.Count} != headerCount {headerCount } att position {csvLines}", EventLevel.Error);
noError++;
}
csvLines += 1;
}
}
this._logger.LogInformation($"Scanning using csv parser completed with {noError} errors");
this._runtimeSettings.TotalRows = textLines;
if (textLines == csvLines && noError == 0)
{
this._logger.LogInformation("Text to record size mateched & alignment test passed ");
return(true);
}
else
{
this._logger.Log($"Found mismatch in number of textLines {textLines} & Csv Lines {csvLines} - Please clean & make sure all the data is properly parsable", EventLevel.Error);
string dataSourceFileName = this._runtimeSettings.DataSourceFileName;
return(this.PerformAutoClean(dataSourceFileName, Path.GetFileNameWithoutExtension(dataSourceFileName) + "-csvdef.json", attempt + 1));
}
}
