/// <summary>
/// create file
/// </summary>
/// <param name="filepath"></param>
/// <param name="buffer"></param>
/// <param name="ownerId"></param>
/// <param name="roles"></param>
/// <returns></returns>
public IStorageFile Create(string filepath, byte[] buffer, DateTime?modificationDate, Guid?ownerId = null, List <Guid> roles = null)
{
if (string.IsNullOrWhiteSpace(filepath))
{
throw new ArgumentException("filepath cannot be null or empty");
}
//all filepaths are lowercase and all starts with folder separator
filepath = filepath.ToLowerInvariant();
if (!filepath.StartsWith(FOLDER_SEPARATOR))
{
filepath = FOLDER_SEPARATOR + filepath;
}
if (Find(filepath) != null)
{
throw new ArgumentException(filepath + ": file already exists");
}
BsonDocument metadata = new BsonDocument();
metadata.Add(new BsonElement("owner_id", ownerId));
BsonArray rolesArr = new BsonArray();
if (roles != null && roles.Count > 0)
{
foreach (var roleId in roles)
{
rolesArr.Add(BsonValue.Create(roleId));
}
}
metadata.Add(new BsonElement("available_to_roles", rolesArr));
if (modificationDate == null)
{
modificationDate = DateTime.UtcNow;
}
using (var stream = gfs.OpenWrite(filepath, new MongoGridFSCreateOptions {
UploadDate = modificationDate.Value, Metadata = metadata
}))
{
if (buffer != null && buffer.Length > 0)
{
stream.Write(buffer, 0, buffer.Length);
}
}
return(Find(filepath));
}
public Stream OpenStream(string remoteFile, string mimetype)
{
_logger.DebugFormat("Open MongoDB By Stream, Id {0}.", remoteFile);
Stream stream = null;
try
{
MongoGridFSCreateOptions option = new MongoGridFSCreateOptions
{
Id = remoteFile,
UploadDate = DateTime.Now,
ContentType = mimetype,
};
MongoGridFS fs = new MongoGridFS(_context.DataBase);
stream = fs.OpenWrite(remoteFile, option);
return(stream);
}
catch (Exception ex)
{
_logger.Error(ex.Message);
_logger.Error(ex.StackTrace);
if (stream != null)
{
stream.Close();
}
throw;
}
}
public Stream OpenFile(string virtualPath, bool readOnly = false)
{
string fixedPath = FixPath(virtualPath);
if (!FileExists(fixedPath) && !readOnly)
{
InternalWriteFile(fixedPath, new MemoryStream(new byte[0]));
}
MongoGridFS gridFs = GetGridFS();
if (readOnly)
{
return(gridFs.OpenRead(fixedPath));
}
MongoGridFSFileInfo fileInfo = gridFs.FindOne(fixedPath);
gridFs.SetMetadata(fileInfo, CreateMetadata(fixedPath, false));
return(gridFs.OpenWrite(fixedPath));
}