protected override IEnumerable <IRow> Produce()
{
var inputRows = InputGenerator.Invoke(this);
if (ColumnConfiguration != null)
{
var initialValues = new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase);
if (CopyOnlySpecifiedColumns)
{
foreach (var row in inputRows)
{
if (Context.CancellationTokenSource.IsCancellationRequested)
{
yield break;
}
foreach (var config in ColumnConfiguration)
{
var value = HandleConverter(row[config.SourceColumn], config);
initialValues[config.RowColumn ?? config.SourceColumn] = value;
}
var newRow = Context.CreateRow(this, initialValues);
newRow.Tag = row.Tag;
yield return(newRow);
initialValues.Clear();
}
}
else
{
var columnConfig = ColumnConfiguration.ToDictionary(x => x.SourceColumn.ToUpperInvariant());
foreach (var row in inputRows)
{
if (Context.CancellationTokenSource.IsCancellationRequested)
{
yield break;
}
foreach (var config in ColumnConfiguration)
{
var value = HandleConverter(row[config.SourceColumn], config);
initialValues[config.RowColumn ?? config.SourceColumn] = value;
}
foreach (var kvp in row.Values)
{
if (!columnConfig.ContainsKey(kvp.Key.ToUpperInvariant()))
{
if (DefaultColumnConfiguration != null)
{
var value = HandleConverter(kvp.Value, DefaultColumnConfiguration);
initialValues[kvp.Key] = value;
}
else
{
initialValues[kvp.Key] = kvp.Value;
}
}
}
var newRow = Context.CreateRow(this, initialValues);
newRow.Tag = row.Tag;
yield return(newRow);
initialValues.Clear();
}
}
}
else
{
foreach (var row in inputRows)
{
if (Context.CancellationTokenSource.IsCancellationRequested)
{
yield break;
}
yield return(Context.CreateRow(this, row));
}
}
}
protected override IEnumerable <IRow> Produce()
{
var inputRows = InputGenerator.Invoke(this);
if (Columns != null)
{
var initialValues = new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase);
if (CopyOnlySpecifiedColumns)
{
foreach (var inputRow in inputRows)
{
if (Context.IsTerminating)
{
yield break;
}
foreach (var columnKvp in Columns)
{
var value = columnKvp.Value.Process(this, inputRow[columnKvp.Value.SourceColumn ?? columnKvp.Key]);
initialValues[columnKvp.Key] = value;
}
var newRow = Context.CreateRow(this, initialValues);
newRow.Tag = inputRow.Tag;
yield return(newRow);
initialValues.Clear();
}
}
else
{
var columnMap = Columns != null
? new Dictionary <string, ReaderColumn>(Columns, StringComparer.InvariantCultureIgnoreCase)
: null;
foreach (var inputRow in inputRows)
{
if (Context.IsTerminating)
{
yield break;
}
foreach (var columnKvp in Columns)
{
var value = columnKvp.Value.Process(this, inputRow[columnKvp.Value.SourceColumn ?? columnKvp.Key]);
initialValues[columnKvp.Key] = value;
}
foreach (var valueKvp in inputRow.Values)
{
if (!columnMap.ContainsKey(valueKvp.Key.ToUpperInvariant()))
{
if (DefaultColumns != null)
{
var value = DefaultColumns.Process(this, valueKvp.Value);
initialValues[valueKvp.Key] = value;
}
else
{
initialValues[valueKvp.Key] = valueKvp.Value;
}
}
}
var newRow = Context.CreateRow(this, initialValues);
newRow.Tag = inputRow.Tag;
yield return(newRow);
initialValues.Clear();
}
}
}
else
{
foreach (var row in inputRows)
{
if (Context.IsTerminating)
{
yield break;
}
yield return(Context.CreateRow(this, row));
}
}
}