public static IEasyCachingBus WithCircuitBreaker(
string name,
Func <IEasyCachingBus> busFactory,
ICircuitBreakerParameters initParameters,
ICircuitBreakerParameters executeParameters,
TimeSpan subscribeRetryInterval,
Func <Exception, bool> exceptionFilter)
{
var policyBuilder = exceptionFilter.GetHandleExceptionPolicyBuilder();
var policyBuilderWithResult = exceptionFilter.GetHandleExceptionPolicyBuilder <IEasyCachingBus>();
var initFallbackPolicy = policyBuilderWithResult.Fallback(
fallbackAction: (result, _, __) => new ExceptionEasyCachingBus(result.Exception),
onFallback: (_, __) => { });
var initCircuitBreakerPolicy = initParameters.CreatePolicy(policyBuilderWithResult);
var initPolicy = Policy.Wrap(initFallbackPolicy, initCircuitBreakerPolicy);
var syncExecutePolicy = executeParameters.CreatePolicy(policyBuilder);
var asyncExecutePolicy = executeParameters.CreatePolicyAsync(policyBuilder);
var subscribePolicy = policyBuilder.WaitAndRetryForeverAsync(_ => subscribeRetryInterval);
return(new EasyCachingBusPolicyDecorator(
name,
busFactory,
initPolicy: initPolicy,
syncExecutePolicy: syncExecutePolicy,
asyncExecutePolicy: asyncExecutePolicy,
subscribePolicy: subscribePolicy));
}
public static IProviderOptionsWithDecorator <IEasyCachingProvider> DecorateWithCircuitBreaker(
this IProviderOptionsWithDecorator <IEasyCachingProvider> options,
ICircuitBreakerParameters initParameters,
ICircuitBreakerParameters executeParameters,
Func <Exception, bool> exceptionFilter)
{
return(options.Decorate((name, serviceProvider, cachingProviderFactory) =>
() => new DecoratedEasyCachingProvider(
name,
cachingProviderFactory.WithCircuitBreaker(initParameters, executeParameters, exceptionFilter))
));
}
public static IBusOptions DecorateWithCircuitBreaker(
this IBusOptions options,
ICircuitBreakerParameters initParameters,
ICircuitBreakerParameters executeParameters,
TimeSpan subscribeRetryInterval,
Func <Exception, bool> exceptionFilter) =>
options.Decorate((name, serviceProvider, cachingBusFactory) =>
() => EasyCachingBusPolicyDecorator.WithCircuitBreaker(
name,
cachingBusFactory,
initParameters,
executeParameters,
subscribeRetryInterval,
exceptionFilter));
private static IEasyCachingProviderDecorator <TProvider> WithCircuitBreaker <TProvider>(
this Func <TProvider> cachingProviderFactory,
ICircuitBreakerParameters initParameters,
ICircuitBreakerParameters executeParameters,
Func <Exception, bool> exceptionFilter) where TProvider : class, IEasyCachingProviderBase
{
var policyBuilder = exceptionFilter.GetHandleExceptionPolicyBuilder();
var initPolicy = initParameters.CreatePolicy(policyBuilder);
var syncExecutePolicy = executeParameters.CreatePolicy(policyBuilder);
var asyncExecutePolicy = executeParameters.CreatePolicyAsync(policyBuilder);
return(new EasyCachingProviderPolicyDecorator <TProvider>(
cachingProviderFactory,
initPolicy,
syncExecutePolicy,
asyncExecutePolicy));
}