public LatencyModule(ILatencyPerformer latencyPerformer, RateManager rateManager, Func <TimeSpan> latencyProvider, Func <double> rateProvider)
{
this.latencyProvider = latencyProvider;
this.rateProvider = rateProvider;
this.latencyPerformer = latencyPerformer;
this.rateManager = rateManager;
}
/// <summary>
/// Inject latency to the every request retry with custom <paramref name="latencyPerformer"/>
/// </summary>
/// <example>
/// <code>
/// ------► + injected latency ---► replica(1..n)
/// ↑__________retry (1..n)__________________|
/// </code>
/// </example>
/// <param name="configuration">IClusterClientConfiguration instance</param>
/// <param name="latencyPerformer">Custom class for latency performing or simulation</param>
/// <param name="latencyProvider">Func returning latency to inject</param>
/// <param name="rateProvider">Func returning injection probability (rate)</param>
public static void InjectLatencyOnEveryRetry(
this IClusterClientConfiguration configuration,
ILatencyPerformer latencyPerformer,
Func <TimeSpan> latencyProvider,
Func <double> rateProvider)
{
configuration.AddRequestModule(new LatencyModule(latencyPerformer, new RateManager(), latencyProvider, rateProvider), RequestModule.RequestRetry, ModulePosition.After);
}
public LatencyStrategy(ILatencyPerformer latencyPerformer, RateManager rateManager, Func <TimeSpan> latencyProvider, Func <double> rateProvider, IRequestStrategy baseStrategy)
{
this.latencyPerformer = latencyPerformer;
this.rateManager = rateManager;
this.latencyProvider = latencyProvider;
this.rateProvider = rateProvider;
this.baseStrategy = baseStrategy;
}
/// <summary>
/// Inject latency to the every strategy IRequestSender.SendToReplicaAsync call with custom <paramref name="latencyPerformer"/>
/// </summary>
/// <example>
/// <code>
/// ---► + injected latency ---► replica1 ---► + injected latency ---> replica2 ...
/// ◄---------------------|
/// </code>
/// </example>
/// <param name="configuration">IClusterClientConfiguration instance</param>
/// <param name="latencyPerformer">Custom class for latency performing</param>
/// <param name="latencyProvider">Func returning latency to inject</param>
/// <param name="rateProvider">Func returning injection probability (rate)</param>
public static void InjectLatencyOnEveryNetworkCall(
this IClusterClientConfiguration configuration,
ILatencyPerformer latencyPerformer,
Func <TimeSpan> latencyProvider,
Func <double> rateProvider)
{
configuration.DefaultRequestStrategy = new LatencyStrategy(latencyPerformer, new RateManager(), latencyProvider, rateProvider, configuration.DefaultRequestStrategy);
}
public LatencyRequestSender(
IRequestSender baseRequestSender,
ILatencyPerformer latencyPerformer,
RateManager rateManager,
TimeSpan latency,
double rate)
{
this.baseRequestSender = baseRequestSender;
this.latencyPerformer = latencyPerformer;
this.rateManager = rateManager;
this.latency = latency;
this.rate = rate;
}