protected override async Task <Blob> GetBlobAsync(string fullPath, CancellationToken cancellationToken)
{
CloudFile file = await GetFileReferenceAsync(fullPath, false, cancellationToken).ConfigureAwait(false);
try
{
await file.FetchAttributesAsync(cancellationToken).ConfigureAwait(false);
return(AzConvert.ToBlob(StoragePath.GetParent(fullPath), file));
}
catch (AzStorageException ex) when(ex.RequestInformation.ErrorCode == "ShareNotFound")
{
return(null);
}
catch (AzStorageException ex) when(ex.RequestInformation.ErrorCode == "ResourceNotFound")
{
return(null);
}
}
protected override async Task <IReadOnlyCollection <Blob> > ListAtAsync(
string path, ListOptions options, CancellationToken cancellationToken)
{
if (StoragePath.IsRootPath(path))
{
//list file shares
ShareResultSegment shares = await _client.ListSharesSegmentedAsync(null, cancellationToken).ConfigureAwait(false);
return(shares.Results.Select(AzConvert.ToBlob).ToList());
}
else
{
var chunk = new List <Blob>();
CloudFileDirectory dir = await GetDirectoryReferenceAsync(path, cancellationToken).ConfigureAwait(false);
FileContinuationToken token = null;
do
{
try
{
FileResultSegment segment = await dir.ListFilesAndDirectoriesSegmentedAsync(options.FilePrefix, token, cancellationToken).ConfigureAwait(false);
token = segment.ContinuationToken;
chunk.AddRange(segment.Results.Select(r => AzConvert.ToBlob(path, r)));
}
catch (AzStorageException ex) when(ex.RequestInformation.ErrorCode == "ShareNotFound")
{
break;
}
catch (AzStorageException ex) when(ex.RequestInformation.ErrorCode == "ResourceNotFound")
{
break;
}
}while(token != null);
return(chunk);
}
}
