public SegmentStats Segment(string label, IEnumerable <T> stream, int maxWorkingMemoryBytes = 0,
ISafeLogger logger = null, IMetricsHost metrics = null, CancellationToken cancellationToken = default)
{
var count = 0L;
var segments = 0;
var sw = new StreamWriter(CreateSegment(label, segments));
try
{
foreach (var item in stream)
{
var line = _serialize(item);
BuiltInMetrics.LineLength <T>(metrics, line.Length);
sw.WriteLine(line);
count++;
if (maxWorkingMemoryBytes == 0 || sw.BaseStream.Length < maxWorkingMemoryBytes)
{
continue;
}
sw.Flush();
sw.Close();
segments++;
sw = new StreamWriter(CreateSegment(label, segments));
}
}
finally
{
sw.Flush();
sw.Close();
}
return(new SegmentStats
{
RecordCount = count,
RecordLength = (int)BuiltInMetrics.GetMeanLineLength <T>(metrics) + 1,
SegmentCount = segments
});
}