internal ConfigEnvironment LoadInternal(bool updateDictionary = true)
{
// Refresh settings with latest configuration values
ConfigurationSettingsHelper.Initialize(PREFIX, _settings, _configuration);
if (!_settings.Enabled)
{
_logger?.LogInformation("Config Server client disabled, did not fetch configuration!");
return(null);
}
if (IsDiscoveryFirstEnabled())
{
var discoveryService = new ConfigServerDiscoveryService(_configuration, _settings, _loggerFactory);
DiscoverServerInstances(discoveryService);
}
// Adds client settings (e.g spring:cloud:config:uri, etc) to the Data dictionary
AddConfigServerClientSettings();
if (_settings.RetryEnabled && _settings.FailFast)
{
var attempts = 0;
var backOff = _settings.RetryInitialInterval;
do
{
_logger?.LogInformation("Fetching config from server at: {0}", _settings.Uri);
try
{
return(DoLoad(updateDictionary));
}
catch (ConfigServerException e)
{
_logger?.LogInformation("Failed fetching config from server at: {0}, Exception: {1}", _settings.Uri, e);
attempts++;
if (attempts < _settings.RetryAttempts)
{
Thread.CurrentThread.Join(backOff);
var nextBackoff = (int)(backOff * _settings.RetryMultiplier);
backOff = Math.Min(nextBackoff, _settings.RetryMaxInterval);
}
else
{
throw;
}
}
}while (true);
}
else
{
_logger?.LogInformation("Fetching config from server at: {0}", _settings.Uri);
return(DoLoad(updateDictionary));
}
}
internal void DiscoverServerInstances(ConfigServerDiscoveryService discoveryService)
{
IList <IServiceInstance> instances = discoveryService.GetConfigServerInstances();
if (instances == null || instances.Count == 0)
{
if (_settings.FailFast)
{
throw new ConfigServerException("Could not locate config server via discovery, are you missing a Discovery service assembly?");
}
return;
}
UpdateSettingsFromDiscovery(instances, _settings);
}