/// <summary>
/// circuitBreaker
/// </summary>
/// <param name="option"></param>
/// <returns></returns>
public Policy <HttpWebResponse> GetCircuitBreakerPolicy(RestOption option)
{
return(Policy <HttpWebResponse>
.Handle <WebException>(r => r.Status == WebExceptionStatus.ProtocolError && ((HttpWebResponse)r.Response).StatusCode >= HttpStatusCode.InternalServerError)
.OrResult(r => r.StatusCode >= HttpStatusCode.InternalServerError)
.CircuitBreaker(option.HandledEventsAllowedBeforeBreaking, TimeSpan.FromSeconds(option.DurationOfBreakSeconds)));
}
/// <summary>
/// retry async
/// </summary>
/// <param name="option"></param>
/// <returns></returns>
public IAsyncPolicy <WebResponse> GetRetryPolicyAsync(RestOption option)
{
var jitter = TimeSpan.FromMilliseconds(RandomProvider.GetThreadRandom().Next(0, 100));
return(Policy <WebResponse>
.Handle <WebException>(ex => ((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.InternalServerError)
.WaitAndRetryAsync(option.RetryCount, retryAttempt =>
TimeSpan.FromSeconds(Math.Pow(option.SleepDurationSeconds, retryAttempt)) + jitter));
}
/// <summary>
/// retry
/// </summary>
/// <param name="option"></param>
/// <returns></returns>
public Policy <HttpWebResponse> GetRetryPolicy(RestOption option)
{
var jitter = TimeSpan.FromMilliseconds(RandomProvider.GetThreadRandom().Next(0, 100));
return(Policy <HttpWebResponse>
.Handle <WebException>(r => r.Status == WebExceptionStatus.ProtocolError && ((HttpWebResponse)r.Response).StatusCode >= HttpStatusCode.InternalServerError)
.OrResult(r => r.StatusCode >= HttpStatusCode.InternalServerError)
.WaitAndRetry(option.RetryCount, retryAttempt =>
TimeSpan.FromSeconds(Math.Pow(option.SleepDurationSeconds, retryAttempt)) + jitter));
}
/// <summary>
/// circuitBreaker async
/// </summary>
/// <param name="option"></param>
/// <returns></returns>
public IAsyncPolicy <WebResponse> GetCircuitBreakerPolicyAsync(RestOption option)
{
return(Policy <WebResponse>
.Handle <WebException>(ex => ((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.InternalServerError)
.CircuitBreakerAsync(option.HandledEventsAllowedBeforeBreaking, TimeSpan.FromSeconds(option.DurationOfBreakSeconds)));
}
/// <summary>
/// fallback
/// </summary>
/// <returns></returns>
/*public Policy<HttpWebResponse> GetFallbackPolicy()
* {
* return Policy<HttpWebResponse>
* .Handle<WebException>(r => r.Status == WebExceptionStatus.ProtocolError && ((HttpWebResponse)r.Response).StatusCode >= HttpStatusCode.InternalServerError)
* .OrResult(r => r.StatusCode >= HttpStatusCode.InternalServerError)
* .Fallback(new HttpWebResponse());
* }*/
/// <summary>
/// get async
/// </summary>
/// <param name="option"></param>
/// <returns></returns>
public IAsyncPolicy <WebResponse> GetPoliciesAsync(RestOption option)
{
return(Policy.WrapAsync(GetRetryPolicyAsync(option), GetCircuitBreakerPolicyAsync(option)));
}
/// <summary>
/// get
/// </summary>
/// <param name="option"></param>
/// <returns></returns>
public PolicyWrap <HttpWebResponse> GetPolicies(RestOption option)
{
return(Policy.Wrap(GetRetryPolicy(option), GetCircuitBreakerPolicy(option)));
}