public async Task <ActionResponse> DownloadByteAsync(string fileName, string partitionName)
{
CloudBlockBlob blockBlob = null;
byte[] fileContent = null;
var blockName = GetBlockName(partitionName, fileName);
try
{
var retryPolicy = Policy
.Handle <Exception>()
.WaitAndRetryAsync(
_maxRetryValueForBlobAction,
retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)),
(exception, timeSpan, retryCount, context) =>
{
_logger.LogError($"Retey {retryCount} after {timeSpan.TotalSeconds} of Blob {exception.Message}");
}
);
await retryPolicy.ExecuteAsync(async() =>
{
if (blockBlob == null)
{
blockBlob = await GetBlockBlobAsync(_containerName, blockName);
await blockBlob.FetchAttributesAsync();
long fileByteLength = blockBlob.Properties.Length;
fileContent = new byte[fileByteLength];
}
if (blockBlob != null)
{
await blockBlob.DownloadToByteArrayAsync(fileContent, 0);
}
});
}
catch (Exception ex)
{
_logger.LogError(ex, $"Unable to download bytes for {blockName}");
throw ex;
}
return(ActionResponse.DownloadSuccessResponse(blockName, fileContent));
}
public async Task <ActionResponse> DownloadTextAsync(string fileName, string partitionName)
{
CloudBlockBlob blockBlob = null;
string documentText = null;
var blockName = GetBlockName(partitionName, fileName);
try
{
var retryPolicy = Policy
.Handle <Exception>()
.WaitAndRetryAsync(
_maxRetryValueForBlobAction,
retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)),
(exception, timeSpan, retryCount, context) =>
{
_logger.LogError($"Retey {retryCount} after {timeSpan.TotalSeconds} of Blob {exception.Message}");
}
);
await retryPolicy.ExecuteAsync(async() =>
{
if (blockBlob == null)
{
blockBlob = await GetBlockBlobAsync(_containerName, blockName);
}
if (blockBlob != null)
{
documentText = await blockBlob.DownloadTextAsync();
}
});
}
catch (Exception ex)
{
_logger.LogError(ex, $"Unable to download text for {blockName}");
throw ex;
}
return(ActionResponse.DownloadSuccessResponse(blockName, documentText));
}