private async Task <IReadOnlyCollection <Blob> > ListPathAsync(string path, int?maxResults, ListOptions options, CancellationToken cancellationToken)
{
//get filesystem name and folder path
string[] parts = StoragePath.Split(path);
string fs = parts[0];
string relativePath = StoragePath.Combine(parts.Skip(1));
var list = new List <Gen2Path>();
try
{
string continuation = null;
do
{
string continuationParam = continuation == null ? null : $"&continuation={continuation}";
(PathList pl, IDictionary <string, string> responseHeaders) = await InvokeExtraAsync <PathList>(
$"{fs}?resource=filesystem&directory={relativePath.UrlEncode()}&recursive={options.Recurse}{continuationParam}",
RequestMethod.Get,
cancellationToken).ConfigureAwait(false);
list.AddRange(pl.Paths);
responseHeaders.TryGetValue("x-ms-continuation", out continuation);
} while(continuation != null);
}
catch (RequestFailedException ex) when(ex.ErrorCode == "PathNotFound" || ex.ErrorCode == "FilesystemNotFound")
{
// trying to list a path which doesn't exist, just return an empty result
return(new List <Blob>());
}
IEnumerable <Blob> result = list.Select(p => AzConvert.ToBlob(fs, p));
if (options.FilePrefix != null)
{
result = result.Where(b => b.IsFolder || b.Name.StartsWith(options.FilePrefix));
}
if (options.BrowseFilter != null)
{
result = result.Where(b => options.BrowseFilter(b));
}
if (maxResults != null)
{
result = result.Take(maxResults.Value);
}
return(result.ToList());
}
public async Task <Blob> GetBlobAsync(string fullPath, CancellationToken cancellationToken)
{
DecomposePath(fullPath, out string fs, out string rp, false);
if (StoragePath.IsRootPath(rp))
{
try
{
(Void _, IDictionary <string, string> headers) = await InvokeExtraAsync <Void>(
$"{fs}?resource=filesystem",
RequestMethod.Head,
cancellationToken).ConfigureAwait(false);
return(AzConvert.ToBlob(fullPath, headers, true));
}
catch (RequestFailedException ex) when(ex.ErrorCode == "FilesystemNotFound")
{
//filesystem doesn't exist
return(null);
}
}
try
{
(Void _, IDictionary <string, string> fheaders) = await InvokeExtraAsync <Void>(
$"{fs}/{rp.UrlEncode()}?action=getProperties",
RequestMethod.Head,
cancellationToken).ConfigureAwait(false);
return(AzConvert.ToBlob(fullPath, fheaders, false));
}
catch (RequestFailedException ex) when(ex.ErrorCode == "PathNotFound")
{
return(null);
}
}