public BlobFile Get(string id)
{
BlobHelper blobHelper;
BlobFile blobFile;
try
{
blobHelper = new BlobHelper(_loggerFactory, _config);
blobFile = blobHelper.Get(id);
}
catch (Exception ex)
{
throw ex;
}
return(blobFile);
}
/// <summary>
/// Initializes the stream
/// </summary>
protected virtual void InitFileStream()
{
var blob = BlobHelper.Get(_path);
if (_fileMode == FileMode.CreateNew && blob.Exists())
{
throw new Exception(string.Format("[FileStream.InitFileStream()]: Cannot create a new file '{0}', the file '{1}' already exists in BLOB storage.", Path, blob.Path));
}
if (_fileMode != FileMode.Create && blob.Exists())
{
var data = blob.Get();
Write(data, 0, data.Length);
Seek(0, SeekOrigin.Begin);
if (_fileMode == FileMode.Append)
{
Seek(data.Length, SeekOrigin.Begin);
}
}
if ((_fileMode == FileMode.Open || _fileMode == FileMode.Append) && !blob.Exists())
{
// weird fallback from original implementation
// if file does not exist, take local file instead
// should be absolutely removed!!!
if (!System.IO.File.Exists(_path))
{
return;
}
var data = System.IO.File.ReadAllBytes(_path);
Write(data, 0, data.Length);
Seek(0, SeekOrigin.Begin);
if (_fileMode == FileMode.Append)
{
Seek(data.Length, SeekOrigin.Begin);
}
}
}
/// <summary>
/// Releases all resources.
/// </summary>
protected override void Dispose(bool disposing)
{
// handle closed streams
if (!_stream.CanSeek)
{
// stream has been already disposed
return;
}
Flush();
if (_fileAccess == FileAccess.Write || _fileAccess == FileAccess.ReadWrite)
{
Seek(0, SeekOrigin.Begin);
BlobHelper.Get(Path).Upload(_stream);
CMS.IO.StorageHelper.LogUpdateFileTask(Path);
}
}
