/// <summary>
/// Converts a sub grid directory into its immutable form, using a cached stream
/// </summary>
/// <param name="mutableStream"></param>
/// <param name="immutableStream"></param>
/// <returns></returns>
private bool ConvertSubGridDirectoryToImmutable(MemoryStream mutableStream, out MemoryStream immutableStream)
{
try
{
// create a leaf to contain the mutable directory (and ensure the global latest cells is the mutable variety)
using (var leaf = new ServerSubGridTreeLeaf(null, null, SubGridTreeConsts.SubGridTreeLevels, StorageMutability.Immutable)
{
Directory = { GlobalLatestCells = subGridCellLatestPassesDataWrapperFactory.NewMutableWrapper_Global() }
})
{
// Load the mutable stream of information
mutableStream.Position = 0;
leaf.LoadDirectoryFromStream(mutableStream);
using (var directory = leaf.Directory.GlobalLatestCells)
{
leaf.Directory.GlobalLatestCells = ConvertLatestPassesToImmutable(directory, SegmentLatestPassesContext.Global);
}
immutableStream = RecyclableMemoryStreamManagerHelper.Manager.GetStream();
leaf.SaveDirectoryToStream(immutableStream);
}
return(true);
}
catch (Exception e)
{
immutableStream = null;
Log.LogError(e, "Exception in conversion of sub grid directory mutable data to immutable schema");
return(false);
}
}
/// <summary>
/// Converts a sub grid directory into its immutable form, using the source object
/// </summary>
/// <param name="source"></param>
/// <param name="immutableStream"></param>
/// <returns></returns>
private bool ConvertSubGridDirectoryToImmutable(object source, out MemoryStream immutableStream)
{
try
{
var originSource = (IServerLeafSubGrid)source;
// create a copy and compress the latestPasses(and ensure the global latest cells is the mutable variety)
using (var leaf = new ServerSubGridTreeLeaf(null, null, SubGridTreeConsts.SubGridTreeLevels, StorageMutability.Immutable)
{
LeafStartTime = originSource.LeafStartTime,
LeafEndTime = originSource.LeafEndTime,
Directory =
{
SegmentDirectory = originSource.Directory.SegmentDirectory,
GlobalLatestCells = ConvertLatestPassesToImmutable(originSource.Directory.GlobalLatestCells,
SegmentLatestPassesContext.Global)
}
})
{
immutableStream = RecyclableMemoryStreamManagerHelper.Manager.GetStream();
leaf.SaveDirectoryToStream(immutableStream);
}
return(true);
}
catch (Exception e)
{
immutableStream = null;
Log.LogError(e, "Exception in conversion of sub grid directory mutable data to immutable schema");
return(false);
}
}