<PackageReference Include="Polly" Version="8.4.2" />

AdvancedCircuitBreakerTResultSyntax

Fluent API for defining a Circuit Breaker Policy<T>.
using Polly.CircuitBreaker; using Polly.Utilities; using System; using System.Runtime.CompilerServices; namespace Polly { public static class AdvancedCircuitBreakerTResultSyntax { public static CircuitBreakerPolicy<TResult> AdvancedCircuitBreaker<TResult>(this PolicyBuilder<TResult> policyBuilder, double failureThreshold, TimeSpan samplingDuration, int minimumThroughput, TimeSpan durationOfBreak) { Action<DelegateResult<TResult>, TimeSpan> onBreak = delegate { }; Action onReset = delegate { }; return policyBuilder.AdvancedCircuitBreaker(failureThreshold, samplingDuration, minimumThroughput, durationOfBreak, onBreak, onReset); } public static CircuitBreakerPolicy<TResult> AdvancedCircuitBreaker<TResult>(this PolicyBuilder<TResult> policyBuilder, double failureThreshold, TimeSpan samplingDuration, int minimumThroughput, TimeSpan durationOfBreak, Action<DelegateResult<TResult>, TimeSpan> onBreak, Action onReset) { return policyBuilder.AdvancedCircuitBreaker(failureThreshold, samplingDuration, minimumThroughput, durationOfBreak, delegate(DelegateResult<TResult> outcome, TimeSpan timespan, Context _) { onBreak(outcome, timespan); }, delegate { onReset(); }); } public static CircuitBreakerPolicy<TResult> AdvancedCircuitBreaker<TResult>(this PolicyBuilder<TResult> policyBuilder, double failureThreshold, TimeSpan samplingDuration, int minimumThroughput, TimeSpan durationOfBreak, Action<DelegateResult<TResult>, TimeSpan, Context> onBreak, Action<Context> onReset) { Action onHalfOpen = delegate { }; return policyBuilder.AdvancedCircuitBreaker(failureThreshold, samplingDuration, minimumThroughput, durationOfBreak, onBreak, onReset, onHalfOpen); } public static CircuitBreakerPolicy<TResult> AdvancedCircuitBreaker<TResult>(this PolicyBuilder<TResult> policyBuilder, double failureThreshold, TimeSpan samplingDuration, int minimumThroughput, TimeSpan durationOfBreak, Action<DelegateResult<TResult>, TimeSpan> onBreak, Action onReset, Action onHalfOpen) { return policyBuilder.AdvancedCircuitBreaker(failureThreshold, samplingDuration, minimumThroughput, durationOfBreak, delegate(DelegateResult<TResult> outcome, TimeSpan timespan, Context _) { onBreak(outcome, timespan); }, delegate { onReset(); }, onHalfOpen); } public static CircuitBreakerPolicy<TResult> AdvancedCircuitBreaker<TResult>(this PolicyBuilder<TResult> policyBuilder, double failureThreshold, TimeSpan samplingDuration, int minimumThroughput, TimeSpan durationOfBreak, Action<DelegateResult<TResult>, TimeSpan, Context> onBreak, Action<Context> onReset, Action onHalfOpen) { return policyBuilder.AdvancedCircuitBreaker(failureThreshold, samplingDuration, minimumThroughput, durationOfBreak, delegate(DelegateResult<TResult> outcome, CircuitState _, TimeSpan timespan, Context context) { onBreak(outcome, timespan, context); }, onReset, onHalfOpen); } public static CircuitBreakerPolicy<TResult> AdvancedCircuitBreaker<TResult>(this PolicyBuilder<TResult> policyBuilder, double failureThreshold, TimeSpan samplingDuration, int minimumThroughput, TimeSpan durationOfBreak, Action<DelegateResult<TResult>, CircuitState, TimeSpan, Context> onBreak, Action<Context> onReset, Action onHalfOpen) { TimeSpan t = TimeSpan.FromTicks(AdvancedCircuitController<EmptyStruct>.ResolutionOfCircuitTimer); if (failureThreshold <= 0) throw new ArgumentOutOfRangeException("failureThreshold", "Value must be greater than zero."); if (failureThreshold > 1) throw new ArgumentOutOfRangeException("failureThreshold", "Value must be less than or equal to one."); if (samplingDuration < t) { DefaultInterpolatedStringHandler defaultInterpolatedStringHandler = new DefaultInterpolatedStringHandler(113, 1); defaultInterpolatedStringHandler.AppendLiteral("Value must be equal to or greater than "); defaultInterpolatedStringHandler.AppendFormatted(t.TotalMilliseconds); defaultInterpolatedStringHandler.AppendLiteral(" milliseconds. This is the minimum resolution of the CircuitBreaker timer."); throw new ArgumentOutOfRangeException("samplingDuration", defaultInterpolatedStringHandler.ToStringAndClear()); } if (minimumThroughput <= 1) throw new ArgumentOutOfRangeException("minimumThroughput", "Value must be greater than one."); if (durationOfBreak < TimeSpan.Zero) throw new ArgumentOutOfRangeException("durationOfBreak", "Value must be greater than zero."); if (onBreak == null) throw new ArgumentNullException("onBreak"); if (onReset == null) throw new ArgumentNullException("onReset"); if (onHalfOpen == null) throw new ArgumentNullException("onHalfOpen"); AdvancedCircuitController<TResult> breakerController = new AdvancedCircuitController<TResult>(failureThreshold, samplingDuration, minimumThroughput, durationOfBreak, onBreak, onReset, onHalfOpen); return new CircuitBreakerPolicy<TResult>(policyBuilder, (ICircuitController<TResult>)breakerController); } } }