//const string ContentCompression = "gzip";
/// <summary>
/// Performs the write operation, ensuring that the condition is met.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="condition">The condition.</param>
/// <param name="writeOptions">The write options.</param>
public long Write(Action <Stream> writer, StreamingCondition condition, StreamingWriteOptions writeOptions)
{
try
{
var mapped = Map(condition);
return(BlobStorageUtil.Write(mapped, _blob, writer, writeOptions));
}
catch (StorageServerException ex)
{
switch (ex.ErrorCode)
{
case StorageErrorCode.ServiceIntegrityCheckFailed:
throw StreamingErrors.IntegrityFailure(this, ex);
default:
throw;
}
}
catch (StorageClientException ex)
{
switch (ex.ErrorCode)
{
case StorageErrorCode.ConditionFailed:
throw StreamingErrors.ConditionFailed(this, condition, ex);
case StorageErrorCode.ContainerNotFound:
throw StreamingErrors.ContainerNotFound(this, ex);
default:
throw;
}
}
}
public Optional <StreamingItemInfo> GetInfo(StreamingCondition condition)
{
try
{
_blob.FetchAttributes(Map(condition));
return(BlobStorageUtil.MapFetchedAttrbitues(_blob));
}
catch (StorageClientException e)
{
switch (e.ErrorCode)
{
case StorageErrorCode.ContainerNotFound:
case StorageErrorCode.ResourceNotFound:
case StorageErrorCode.BlobNotFound:
case StorageErrorCode.ConditionFailed:
return(Optional <StreamingItemInfo> .Empty);
case StorageErrorCode.BadRequest:
switch (e.StatusCode)
{
case HttpStatusCode.PreconditionFailed:
return(Optional <StreamingItemInfo> .Empty);
default:
throw;
}
}
throw;
}
}
/// <summary>
/// Attempts to read the storage item.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="condition">The condition.</param>
/// <exception cref="StreamingItemNotFoundException">if the item does not exist.</exception>
/// <exception cref="StreamingContainerNotFoundException">if the container for the item does not exist</exception>
/// <exception cref="StreamingItemIntegrityException">when integrity check fails</exception>
public void ReadInto(ReaderDelegate reader, StreamingCondition condition)
{
try
{
var mapped = Map(condition);
BlobStorageUtil.Read(mapped, _blob, reader);
}
catch (StreamingItemIntegrityException e)
{
throw StreamingErrors.IntegrityFailure(this, e);
}
catch (StorageClientException e)
{
switch (e.ErrorCode)
{
case StorageErrorCode.ContainerNotFound:
throw StreamingErrors.ContainerNotFound(this, e);
case StorageErrorCode.ResourceNotFound:
case StorageErrorCode.BlobNotFound:
throw StreamingErrors.ItemNotFound(this, e);
case StorageErrorCode.ConditionFailed:
throw StreamingErrors.ConditionFailed(this, condition, e);
case StorageErrorCode.ServiceIntegrityCheckFailed:
throw StreamingErrors.IntegrityFailure(this, e);
case StorageErrorCode.BadRequest:
switch (e.StatusCode)
{
// for some reason Azure Storage happens to get here as well
case HttpStatusCode.PreconditionFailed:
case HttpStatusCode.NotModified:
throw StreamingErrors.ConditionFailed(this, condition, e);
default:
throw;
}
default:
throw;
}
}
}