private void RaiseServerSourceRestoreEvent(ServerSourceRestoreEvent e)
{
if (OnServerSourceRestore == null)
{
return;
}
try
{
OnServerSourceRestore(this, e);
}
catch (Exception ex)
{
_logger.Warn("Error occurred while raising ServerSourceRestoreEvent.", ex, _loadBalancerContext.AdditionalInfo);
}
}
public List <LoadBalancerRoute> Restore()
{
lock (this)
{
FileStream fileStream = null;
try
{
string dataFolder = GetDataFolder();
string fileName = GetBackupFileName(dataFolder);
if (string.IsNullOrWhiteSpace(fileName))
{
_logger.Info("Back up file name is null or empty! Backup canceled.", _loadBalancerContext.AdditionalInfo);
return(new List <LoadBalancerRoute>());
}
if (!File.Exists(fileName))
{
_logger.Info("Back up file(" + fileName + ") is not exist! Restore canceled.", _loadBalancerContext.AdditionalInfo);
return(new List <LoadBalancerRoute>());
}
fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
var routes = (List <LoadBalancerRoute>)_serializer.ReadObject(fileStream);
routes = routes.FilterInvalidEntities(_logger, _loadBalancerContext.AdditionalInfo);
ServerSourceRestoreEvent e = new ServerSourceRestoreEvent(routes);
RaiseServerSourceRestoreEvent(e);
return(e.Routes);
}
catch (Exception ex)
{
_logger.Info("Error occurred while restoring server source data", ex, _loadBalancerContext.AdditionalInfo);
return(new List <LoadBalancerRoute>());
}
finally
{
if (fileStream != null)
{
fileStream.Close();
}
}
}
}
