private void ProcessRecords(object state)
{
//cast state object
var trueState = state as Tuple <ConcurrentSqlExtractor, ConcurrentFlatFileWriter, string>;
var reader = trueState.Item1;
var writer = trueState.Item2;
var delim = trueState.Item3;
//make stringbuilder
StringBuilder builder = new StringBuilder();
OutputToConsoleAndLog($"Thread {Thread.CurrentThread.Name} is starting execution");
object[] SourceData;
int progress = 0;
while (reader.TryExtractRecord(out SourceData))
{
builder.Clear();
int objCount = SourceData.Count();
//append items including delimiter
for (int i = 0; i < objCount - 1; i++)
{
builder.Append(SourceData[i].ToString());
builder.Append(delim);
}
//append final item w/o delimiter
builder.Append(SourceData[objCount - 1].ToString());
writer.WriteLine(builder.ToString());
if (++progress % 1000 == 0)
{
OnLinesWritten(Thread.CurrentThread.Name, 1000);
}
}
OnLinesWritten(Thread.CurrentThread.Name, 1000);
}