/// <summary>
/// Starts this instance. In derived class you have to execute this base before your overrided code.
/// </summary>
public override void Start()
{
base.Start();
try
{
using (var transaction = uow.BeginTransaction())
{
var storageService = ((Common)ParentEngineModule).StorageService;
// Get parameters
//var sourceFilePath = GetDataValue(EngineDataDirection.Input, "SourceFilePath").Get<string>();
var sourceFilePath = GetDataValue(EngineDataDirection.Input, "SourceFilePath").Get <VirtualPath>();
var skipStartingDataRows = GetDataValue(EngineDataDirection.Input, "SkipStartingDataRows").GetNullable <int>();
var firstRowHasHeader = GetDataValue(EngineDataDirection.Input, "FirstRowHasHeader").Get <bool>();
var columnDelimiter = GetDataValue(EngineDataDirection.Input, "ColumnDelimiter").Get <char>();
var limitToRows = GetDataValue(EngineDataDirection.Input, "LimitToRows").GetNullable <int>();
//Start parsing file
AddMessage("Configuring parser to read file", MessageSeverity.Debug);
var parser = new GenericParserAdapter(storageService.FileOpenTextReader(sourceFilePath));
parser.SkipStartingDataRows = skipStartingDataRows ?? 0;
parser.FirstRowHasHeader = firstRowHasHeader;
parser.ColumnDelimiter = columnDelimiter;
parser.MaxRows = limitToRows ?? 0;
var table = new TableValue();
AddMessage($"Begin parsing file: '{sourceFilePath}'.", MessageSeverity.Debug);
table.Set(parser.GetDataTable());
AddMessage($"Setting output value in element.", MessageSeverity.Debug);
SetDataValue(EngineDataDirection.Output, "Table", table);
AddMessage($"Releasing unnecessary resources.", MessageSeverity.Debug);
parser.Dispose();
AddMessage($"Parsing file completed. {table.RowCount} read.", MessageSeverity.Debug);
}
}
catch (Exception e)
{
AddMessage($"Error reading flat file. {e.Message}", MessageSeverity.Error);
}
}
