/// <summary>
/// Converts a sub grid segment into its immutable form, using the source object
/// </summary>
/// <param name="source"></param>
/// <param name="immutableStream"></param>
/// <returns></returns>
private bool ConvertSubGridSegmentToImmutable(object source, out MemoryStream immutableStream)
{
try
{
var originSource = (ISubGridCellPassesDataSegment)source;
// create a copy and compress the latestPasses(and ensure the global latest cells is the mutable variety)
using (var segment = new SubGridCellPassesDataSegment(ConvertLatestPassesToImmutable(originSource.LatestPasses, SegmentLatestPassesContext.Segment),
subGridCellSegmentPassesDataWrapperFactory.NewImmutableWrapper())
{
StartTime = originSource.SegmentInfo.StartTime,
EndTime = originSource.SegmentInfo.EndTime
})
{
segment.PassesData.SetState(originSource.PassesData.GetState());
// Write out the segment to the immutable stream
immutableStream = RecyclableMemoryStreamManagerHelper.Manager.GetStream();
using (var writer = new BinaryWriter(immutableStream, Encoding.UTF8, true))
{
segment.Write(writer);
}
}
return(true);
}
catch (Exception e)
{
immutableStream = null;
Log.LogError(e, "Exception in conversion of sub grid segment mutable data to immutable schema");
return(false);
}
}
public ISubGridCellPassesDataSegment AddNewSegment(IServerLeafSubGrid subGrid,
ISubGridCellPassesDataSegmentInfo segmentInfo)
{
if (segmentInfo == null)
{
throw new TRexSubGridProcessingException($"Null segment info passed to AddNewSegment for sub grid {subGrid.Moniker()}");
}
if (segmentInfo.Segment != null)
{
throw new TRexSubGridProcessingException($"Segment info passed to AddNewSegment for sub grid {subGrid.Moniker()} already contains an allocated segment");
}
var Result = new SubGridCellPassesDataSegment
{
Owner = subGrid,
SegmentInfo = segmentInfo
};
segmentInfo.Segment = Result;
for (int I = 0; I < Count; I++)
{
if (segmentInfo.EndTime <= Items[I].SegmentInfo.StartTime)
{
Items.Insert(I, Result);
if (_performSegmentAdditionIntegrityChecks)
{
for (int J = 0; J < Count - 1; J++)
{
if (Items[J].SegmentInfo.StartTime >= Items[J + 1].SegmentInfo.StartTime)
{
_log.LogError($"Segment passes list out of order {Items[J].SegmentInfo.StartTime} versus {Items[J + 1].SegmentInfo.StartTime}. Segment count = {Count}");
DumpSegmentsToLog();
throw new TRexSubGridProcessingException($"Segment passes list out of order {Items[J].SegmentInfo.StartTime} versus {Items[J + 1].SegmentInfo.StartTime}. Segment count = {Count}");
}
}
}
return(Result);
}
}
// if we get to here, then the new segment is at the end of the list, so just add it to the end
Add(Result);
return(Result);
}
/// <summary>
/// Converts a sub grid segment into its immutable form, using a cached stream
/// </summary>
/// <param name="mutableStream"></param>
/// <param name="immutableStream"></param>
/// <returns></returns>
private bool ConvertSubGridSegmentToImmutable(MemoryStream mutableStream, out MemoryStream immutableStream)
{
try
{
// Read in the sub grid segment from the mutable stream
using (var segment = new SubGridCellPassesDataSegment(subGridCellLatestPassesDataWrapperFactory.NewMutableWrapper_Segment(),
subGridCellSegmentPassesDataWrapperFactory.NewMutableWrapper()))
{
mutableStream.Position = 0;
using (var reader = new BinaryReader(mutableStream, Encoding.UTF8, true))
{
segment.Read(reader, true, true);
}
// Convert to the immutable form
using (var mutableLatestPasses = segment.LatestPasses)
{
segment.LatestPasses = ConvertLatestPassesToImmutable(mutableLatestPasses, SegmentLatestPassesContext.Segment);
}
using (var mutablePasses = segment.PassesData)
{
segment.PassesData = subGridCellSegmentPassesDataWrapperFactory.NewImmutableWrapper();
segment.PassesData.SetState(mutablePasses.GetState());
}
// Write out the segment to the immutable stream
immutableStream = RecyclableMemoryStreamManagerHelper.Manager.GetStream();
using (var writer = new BinaryWriter(immutableStream, Encoding.UTF8, true))
{
segment.Write(writer);
}
}
return(true);
}
catch (Exception e)
{
immutableStream = null;
Log.LogError(e, "Exception in conversion of sub grid segment mutable data to immutable schema");
return(false);
}
}