public override async Task <bool> DeleteAsync(FileProviderDeleteArgs args)
{
var fileName = AzureFileNameCalculator.Calculate(args);
if (await FileExistsAsync(args, fileName))
{
return(await GetBlobClient(args, fileName).DeleteIfExistsAsync());
}
return(false);
}
public override async Task <bool> DownloadAsync(FileProviderDownloadArgs args)
{
var fileName = AzureFileNameCalculator.Calculate(args);
if (!await FileExistsAsync(args, fileName))
{
return(false);
}
var blobClient = GetBlobClient(args, fileName);
var download = await blobClient.DownloadToAsync(args.Path, args.CancellationToken);
return(download.Status == (int)HttpStatusCode.OK);
}
public override async Task <Stream> GetOrNullAsync(FileProviderGetArgs args)
{
var fileName = AzureFileNameCalculator.Calculate(args);
if (!await FileExistsAsync(args, fileName))
{
return(null);
}
var blobClient = GetBlobClient(args, fileName);
var download = await blobClient.DownloadAsync(args.CancellationToken);
var memoryStream = new MemoryStream();
await download.Value.Content.CopyToAsync(memoryStream);
return(memoryStream);
}
public override async Task <string> SaveAsync(FileProviderSaveArgs args)
{
var fileName = AzureFileNameCalculator.Calculate(args);
var configuration = args.Configuration.GetAzureConfiguration();
if (!args.OverrideExisting && await FileExistsAsync(args, fileName))
{
throw new FileAlreadyExistsException($"Saving File '{args.FileId}' does already exists in the container '{GetContainerName(args)}'! Set {nameof(args.OverrideExisting)} if it should be overwritten.");
}
if (configuration.CreateContainerIfNotExists)
{
await CreateContainerIfNotExists(args);
}
await GetBlobClient(args, fileName).UploadAsync(args.FileStream, true);
return(args.FileId);
}
public override async Task <bool> ExistsAsync(FileProviderExistsArgs args)
{
var fileName = AzureFileNameCalculator.Calculate(args);
return(await FileExistsAsync(args, fileName));
}
