public async Task LoadAsync(CollectionPath[] paths, Func<FileInfo, bool> filePredicate,
ITargetBlock<Tuple<AnnotatedPath, IFileFingerprint>> joinedTargetBlock,
CancellationToken cancellationToken)
{
await _fileFingerprintManager.LoadAsync(cancellationToken).ConfigureAwait(false);
await GenerateFileFingerprintsAsync(paths, filePredicate, joinedTargetBlock, cancellationToken)
.ConfigureAwait(false);
}
async Task GenerateFileFingerprintsAsync(CollectionPath[] paths, Func<FileInfo, bool> filePredicate,
ITargetBlock<Tuple<AnnotatedPath, IFileFingerprint>> joinedTargetBlock,
CancellationToken cancellationToken)
{
try
{
var annotatedPathBroadcastBlock = new BroadcastBlock<AnnotatedPath[]>(aps => aps,
new DataflowBlockOptions { CancellationToken = cancellationToken });
var joiner = new LinkFingerprintJoiner(joinedTargetBlock);
annotatedPathBroadcastBlock.LinkTo(joiner.AnnotatedPathsBlock, new DataflowLinkOptions { PropagateCompletion = true });
var fileFingerprintBroadcastBlock = new BroadcastBlock<IFileFingerprint>(ff => ff,
new DataflowBlockOptions { CancellationToken = cancellationToken });
fileFingerprintBroadcastBlock.LinkTo(joiner.FileFingerprintBlock, new DataflowLinkOptions { PropagateCompletion = true });
var fingerprintGeneratorTask = _fileFingerprintManager
.GenerateFileFingerprintsAsync(annotatedPathBroadcastBlock, fileFingerprintBroadcastBlock, cancellationToken);
try
{
await DirectoryScanner.GenerateAnnotatedPathsAsync(paths, filePredicate, annotatedPathBroadcastBlock, cancellationToken).ConfigureAwait(false);
}
catch (OperationCanceledException)
{ }
catch (Exception ex)
{
Console.Write("Path scan failed: " + ex.Message);
}
await fingerprintGeneratorTask.ConfigureAwait(false);
}
catch (Exception ex)
{
Console.WriteLine("GenerateFileFingerprintsAsync() failed: " + ex.Message);
}
finally
{
Debug.WriteLine("BlobManager.GenerateFileFingerprintsAsync() is done");
}
}
