private bool AppendToBlob(CloudAppendBlob blob, MemoryStream stream)
{
try
{
if (!blob.Exists())
{
return(false);
}
blob.AppendBlock(stream,
accessCondition: AccessCondition.GenerateIfMaxSizeLessThanOrEqualCondition(_maxBlobSize));
}
catch (StorageException ex)
{
if (ex.RequestInformation.HttpStatusCode == 412) // HttpStatusCode.PreconditionFailed
{
return(false);
}
else
{
throw;
}
}
return(true);
}
public void AppendLineToBlob(string gameEventType, string data)
{
var account = CloudStorageAccount.Parse(_storageAccountConnectionString);
var client = account.CreateCloudBlobClient();
var container = client.GetContainerReference(_containerName);
container.CreateIfNotExists();
var folder = $"{gameEventType}/{_folderStructureFunc()}";
var blobName = GetBlobName(gameEventType);
var fullBlobName = $"{folder}/{blobName}";
var blob = container.GetAppendBlobReference(fullBlobName);
try
{
if (!blob.Exists())
{
Console.WriteLine($"Creating AppendBlob: {fullBlobName}");
try
{
blob.CreateOrReplace(AccessCondition.GenerateIfNotExistsCondition());
}
catch (StorageException ex)
{
}
}
Console.WriteLine($"Write to [{blobName}]: {data}");
blob.AppendText(data + "\n", accessCondition: AccessCondition.GenerateIfMaxSizeLessThanOrEqualCondition(_maxBlobSize));
}
//TODO: Figure out exactly what exception is thrown if blob is too big and only catch that
catch (StorageException ex)
{
// Blob was too big, get new blob name
GetNewBlobName(gameEventType);
// ... and try again
AppendLineToBlob(gameEventType, data);
}
//TODO: Catch and handle other exceptions
}
