public static IQueryProcessorExtensionBuilder AddDefaultPolicies(this IQueryProcessorExtensionBuilder builder)
{
var defaultRetryPolicy = Policy
.Handle <Exception>()
.WaitAndRetry(new[]
{
TimeSpan.FromMilliseconds(50),
TimeSpan.FromMilliseconds(100),
TimeSpan.FromMilliseconds(150)
});
var circuitBreakerPolicy = Policy
.Handle <Exception>()
.CircuitBreaker(1, TimeSpan.FromMilliseconds(500));
var policyRegistry = new PolicyRegistry
{
{ Constants.RetryPolicyName, defaultRetryPolicy },
{ Constants.CircuitBreakerPolicyName, circuitBreakerPolicy }
};
builder.RegisterDecorator(typeof(RetryableQueryDecorator <,>));
builder.AddContextBagItem(Constants.ContextBagKey, policyRegistry);
return(builder);
}
public static IQueryProcessorExtensionBuilder AddJsonQueryLogging(this IQueryProcessorExtensionBuilder builder, Action <JsonSerializerSettings> settings = null)
{
JsonSerializerSettings serializerSettings = null;
if (settings != null)
{
serializerSettings = new JsonSerializerSettings();
settings(serializerSettings);
}
builder.RegisterDecorator(typeof(QueryLoggingDecorator <,>));
builder.AddContextBagItem(Constants.ContextBagKey, new NewtonsftJsonSerializer(serializerSettings));
return(builder);
}
public static IQueryProcessorExtensionBuilder AddPolicies(this IQueryProcessorExtensionBuilder builder, IPolicyRegistry policyRegistry)
{
if (policyRegistry == null)
{
throw new ArgumentNullException(nameof(policyRegistry));
}
if (!policyRegistry.Has(Constants.RetryPolicyName))
{
throw new ConfigurationException($"The policy registry is missing the {Constants.RetryPolicyName} policy which is required");
}
if (!policyRegistry.Has(Constants.CircuitBreakerPolicyName))
{
throw new ConfigurationException($"The policy registry is missing the {Constants.CircuitBreakerPolicyName} policy which is required");
}
builder.RegisterDecorator(typeof(RetryableQueryDecorator <,>));
builder.AddContextBagItem(Constants.ContextBagKey, policyRegistry);
return(builder);
}