/// <summary>
/// Creates the container if it does not yet exist in the storage account
/// </summary>
/// <param name="container"></param>
/// <returns></returns>
public async Task <RepositoryResult> EnsureContainerCreated(string container)
{
await _blobClient.GetBlobContainerClient(container)
.CreateIfNotExistsAsync();
return(RepositoryResult.Success());
}
/// <summary>
/// Checks if the file exists
/// </summary>
/// <param name="fileDate"></param>
/// <param name="container"></param>
/// <param name="fileName"></param>
/// <returns></returns>
public Task <RepositoryResult <bool> > CheckIfFileExistsAsync(DateTime fileDate, string container, string fileName)
{
var fileExists = _savedFiles
.Any(f => f.Container == container &&
f.FileName == fileName);
return(Task.FromResult(RepositoryResult <bool> .Success(fileExists)));
}
public void ReturnsSuccessOnSuccess()
{
var result = RepositoryResult <string> .Success("Hello");
Assert.True(result.IsSuccess);
Assert.Null(result.ErrorMessage);
Assert.Equal("Hello", result.Value);
}
/// <summary>
/// Deletes the file
/// </summary>
/// <param name="fileDate"></param>
/// <param name="container"></param>
/// <param name="fileName"></param>
/// <returns></returns>
public Task <RepositoryResult> DeleteFileAsync(DateTime fileDate, string container, string fileName)
{
var file = _savedFiles.FirstOrDefault(f => f.Container == container &&
f.FileName == fileName);
if (file != null)
{
_savedFiles.Remove(file);
}
return(Task.FromResult(RepositoryResult.Success()));
}
private Task <RepositoryResult> DeleteFileAsync(string absolutePath)
{
try
{
File.Delete(absolutePath);
return(Task.FromResult(RepositoryResult.Success()));
}
catch
{
return(Task.FromResult(RepositoryResult.Fail()));
}
}
private async Task <RepositoryResult> UploadBlobReference(BlobClient blobReference, Stream fileStream)
{
try
{
await blobReference.UploadAsync(fileStream);
return(RepositoryResult.Success());
}
catch (Exception e)
{
return(RepositoryResult.Fail(e.ToString()));
}
}
private async Task <RepositoryResult <bool> > InternalCheckIfFileExistsAsync(BlobClient blobReference)
{
try
{
var blobExists = await blobReference.ExistsAsync();
return(RepositoryResult <bool> .Success(blobExists));
}
catch (Exception e)
{
return(RepositoryResult <bool> .Fail(e.ToString()));
}
}
/// <summary>
/// Deletes the file
/// </summary>
/// <param name="fileDate"></param>
/// <param name="container"></param>
/// <param name="fileName"></param>
/// <returns></returns>
public async Task <RepositoryResult> DeleteFileAsync(DateTime fileDate, string container, string fileName)
{
var blobReference = GetTimeStampedBlobReference(fileDate, container, fileName);
try
{
await blobReference.DeleteAsync();
return(RepositoryResult.Success());
}
catch
{
return(RepositoryResult.Fail());
}
}
private async Task <RepositoryResult <SasDownloadLink> > GetSasDownloadLinkInternalAsync(string filePath, string container, int validForMinutes, string friendlyFileName)
{
var sasUploadLink = await GeSasLinkInternalAsync(filePath, container, validForMinutes, BlobSasPermissions.Read, friendlyFileName);
if (!sasUploadLink.IsSuccess)
{
return(RepositoryResult <SasDownloadLink> .Fail(sasUploadLink.ErrorMessage));
}
return(RepositoryResult <SasDownloadLink> .Success(new SasDownloadLink
{
DownloadLink = sasUploadLink.Value.link,
ValidUntil = sasUploadLink.Value.validUntil
}));
}
/// <summary>
/// Deletes the file
/// </summary>
/// <param name="fileId"></param>
/// <param name="container"></param>
/// <param name="fileName"></param>
/// <returns></returns>
public async Task <RepositoryResult> DeleteFileAsync(Guid fileId, string container, string fileName)
{
var blobReference = GetBlobReference(fileId, container, fileName);
try
{
await blobReference.DeleteAsync();
return(RepositoryResult.Success());
}
catch
{
return(RepositoryResult.Fail());
}
}
/// <summary>
/// Returns a cached file
/// </summary>
/// <param name="container"></param>
/// <param name="fileName"></param>
/// <returns></returns>
public Task <RepositoryResult <Stream> > GetFileAsync(string container, string fileName)
{
var file = _savedFiles
.Find(f => f.Container == container &&
f.FileName == fileName);
if (file != null)
{
// We're copying and returning a new stream, since the caller
// might dispose the returned value, but we need to ensure that
// we can always again return a given file
return(Task.FromResult(RepositoryResult <Stream> .Success(file.FileStream.Copy())));
}
return(Task.FromResult(RepositoryResult <Stream> .Fail("File not found")));
}
/// <summary>
/// Caches a file to memory
/// </summary>
/// <param name="fileId"></param>
/// <param name="container"></param>
/// <param name="fileName"></param>
/// <param name="fileStream"></param>
/// <returns></returns>
public async Task <RepositoryResult> SaveFileAsync(Guid fileId, string container, string fileName, Stream fileStream)
{
// Copying it internally because the original stream is likely to be disposed
var copiedMemoryStream = new MemoryStream();
await fileStream.CopyToAsync(copiedMemoryStream);
copiedMemoryStream.Position = 0;
_savedFiles.Add(new InMemorySavedFile
{
FileId = fileId,
Container = container,
FileName = fileName,
FileStream = copiedMemoryStream
});
return(RepositoryResult.Success());
}
private Task <RepositoryResult <bool> > InternalCheckIfFileExistsAsync(Guid?fileId, string container, string fileName)
{
var fileSavePath = GetFilePath(fileId, container, fileName);
try
{
if (!File.Exists(fileSavePath))
{
return(Task.FromResult(RepositoryResult <bool> .Success(false)));
}
return(Task.FromResult(RepositoryResult <bool> .Success(true)));
}
catch (Exception e)
{
return(Task.FromResult(RepositoryResult <bool> .Fail(e.ToString())));
}
}
private Task <RepositoryResult <Stream> > InternalGetFileAsync(Guid?fileId, string container, string fileName)
{
var fileSavePath = GetFilePath(fileId, container, fileName);
try
{
if (!File.Exists(fileSavePath))
{
return(Task.FromResult(RepositoryResult <Stream> .Fail("The file does not exist")));
}
var fileStream = File.Open(fileSavePath, FileMode.Open, FileAccess.Read, FileShare.Read);
return(Task.FromResult(RepositoryResult <Stream> .Success(fileStream)));
}
catch (Exception e)
{
return(Task.FromResult(RepositoryResult <Stream> .Fail(e.ToString())));
}
}
private async Task <RepositoryResult <Stream> > InternalGetFileAsync(Guid?fileId, string container, string fileName)
{
var blobReference = fileId == null
? GetBlobReference(container, fileName)
: GetBlobReference((Guid)fileId, container, fileName);
try
{
var memoryStream = new MemoryStream();
var blobResponse = await blobReference.DownloadAsync();
await blobResponse.Value.Content.CopyToAsync(memoryStream);
memoryStream.Position = 0;
return(RepositoryResult <Stream> .Success(memoryStream));
}
catch (Exception e)
{
return(RepositoryResult <Stream> .Fail(e.ToString()));
}
}
private async Task <RepositoryResult> SaveFileToDiskAsync(string absoluteFilePath, Stream fileStream)
{
try
{
var path = Path.GetDirectoryName(absoluteFilePath);
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
using (var fs = File.Create(absoluteFilePath))
{
await fileStream.CopyToAsync(fs).ConfigureAwait(false);
}
return(RepositoryResult.Success());
}
catch (Exception e)
{
return(RepositoryResult.Fail(e.ToString()));
}
}
public void ReturnsSuccessPrimitiveType()
{
var result = RepositoryResult <int, object> .Success(5);
Assert.Equal(5, result.Value);
}