private void InitializeFromConfig(string configFilePath)
{
string message;
LoadBalancerSection section;
int[] weights = null;
if (!ConfigurationLoader.TryLoadFromFile(configFilePath, out section, out message))
{
log.WarnFormat(
"Could not initialize LoadBalancer from configuration: Invalid configuration file {0}. Using default settings... ({1})",
configFilePath,
message);
}
if (section != null)
{
this.ReserveRatio = section.ReserveRatio;
this.priorityDownThreshold = section.ValueDown;
if (section.ValueDown == FeedbackLevel.Highest)
{
this.priorityDownThreshold = section.ValueUp == 0 ? section.ValueUp : section.ValueUp - 1;
}
this.PriorityUpThreshold = section.ValueUp;
// load weights from config file & sort:
var dict = new SortedDictionary <int, int>();
foreach (LoadBalancerWeight weight in section.LoadBalancerWeights)
{
dict.Add((int)weight.Level, weight.Value);
}
if (dict.Count == (int)FeedbackLevel.Highest + 1)
{
weights = new int[dict.Count];
dict.Values.CopyTo(weights, 0);
log.InfoFormat("Initialized Load Balancer from configuration file: {0}", configFilePath);
}
else
{
log.WarnFormat(
"Could not initialize LoadBalancer from configuration: {0} is invalid - expected {1} entries, but found {2}. Using default settings...",
configFilePath,
(int)FeedbackLevel.Highest + 1,
dict.Count);
}
}
if (weights == null)
{
weights = DefaultConfiguration.GetDefaultWeights();
}
this.loadLevelWeights = weights;
}
/// <summary>
/// Initializes a new instance of the <see cref = "LoadBalancer{TServer}" /> class. Use default weights for each load level.
/// </summary>
public LoadBalancer()
{
this.random = new Random();
this.serverList = new Dictionary <TServer, ServerState>();
this.loadLevelWeights = DefaultConfiguration.GetDefaultWeights();
}
/// <summary>
/// Initializes a new instance of the <see cref = "LoadBalancer{TServer}" /> class. Use default weights for each load level.
/// </summary>
public LoadBalancer()
{
this.random = new Random();
this.servers = new SortedDictionary <int, ServerBunch <TServer> >();
this.loadLevelWeights = DefaultConfiguration.GetDefaultWeights();
}
