public async Task <CloudAppendBlob> GetBlobReference(string shardingKey, string containerName, string streamId, CancellationToken token, StreamOptions streamOptions)
{
var client = _hydra.CreateBlobClient(shardingKey);
var account = client.Credentials.AccountName;
var container = client.GetContainerReference(containerName);
var semaphore = GetSemaphore(account, containerName, streamId);
if (await semaphore.WaitAsync(TimeSpan.FromSeconds(5), token))
{
try
{
if (streamOptions.CreateContainer && !GetContainerExists(account, containerName))
{
await container.CreateIfNotExistsAsync(BlobContainerPublicAccessType.Off, null, null, token);
SetContainerExists(account, containerName);
}
var blob = container.GetAppendBlobReference(streamId);
if (streamOptions.CreateBlob && !GetStreamExists(account, containerName, streamId) && !await blob.ExistsAsync(null, null, token))
{
await blob.CreateOrReplaceAsync(null, null, null, token);
SetStreamExists(account, containerName, streamId);
}
return(blob);
}
finally
{
semaphore.Release();
}
}
throw new TimeoutException("Unable to get blob reference");
}
private async Task Copy(CloudBlobClient sourceClient, IHydra target, CancellationToken token)
{
var response = await sourceClient.ListContainersSegmentedAsync(null);
do
{
foreach (var sourceItem in response.Results.Where(x => string.IsNullOrWhiteSpace(Options.Object) || x.Name.EqualsCi(Options.Object)).Where(x => !x.Name.StartsWith("azure-")))
{
_logger.LogInformation($"Processing {sourceItem.GetType().Name} '{sourceItem.Name}'.");
var sourceResponse = await sourceItem.ListBlobsSegmentedAsync(null, true, BlobListingDetails.All, null, null, null, null);
do
{
foreach (var sourceEntity in sourceResponse.Results.Cast <CloudBlockBlob>())
{
_logger.LogInformation($"Processing {sourceEntity.GetType().Name} '{sourceEntity.Name}'.");
var targetName = ApplyOverrides(sourceEntity);
var targetClient = target.CreateBlobClient(targetName.Split('/')[0]);
var targetItem = targetClient.GetContainerReference(sourceItem.Name);
await _policyCreate.ExecuteAsync(async() => await targetItem.CreateIfNotExistsAsync());
var targetEntity = targetItem.GetBlockBlobReference(targetName);
if (sourceEntity.Properties.Length > 0)
{
var tempFile = Path.GetTempFileName();
await _policyDownload.ExecuteAsync(async() =>
{
if (File.Exists(tempFile))
{
File.Delete(tempFile);
}
await sourceEntity.DownloadToFileAsync(tempFile, FileMode.CreateNew, null, null, null, new CommandProgress(_logger, sourceEntity.Properties.Length, $"Download: {sourceEntity.Name}."), token);
});
await _policyUpload.ExecuteAsync(async() =>
{
await targetEntity.UploadFromFileAsync(tempFile, null, null, null, new CommandProgress(_logger, sourceEntity.Properties.Length, $"Upload: {targetEntity.Name}."), token);
});
File.Delete(tempFile);
}
else
{
await _policyUpload.ExecuteAsync(async() =>
{
await targetEntity.UploadTextAsync(string.Empty);
});
}
await _policyUpload.ExecuteAsync(async() =>
{
targetEntity.Properties.ContentType = sourceEntity.Properties.ContentType;
await targetEntity.SetPropertiesAsync();
});
}
sourceResponse = await sourceItem.ListBlobsSegmentedAsync(null, true, BlobListingDetails.All, null, sourceResponse.ContinuationToken, null, null);
}while (sourceResponse.ContinuationToken != null && !token.IsCancellationRequested);
}
response = await sourceClient.ListContainersSegmentedAsync(response.ContinuationToken);
}while (response.ContinuationToken != null && !token.IsCancellationRequested);
}
