/// <summary>
/// All policies implement ISyncPolicy or IAsyncPolicy
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public string UseRegistry(int input)
{
var policy = _registry.Get <ISyncPolicy>("DefaultRetry");
var response = policy.Execute(
() => dbContext.First(r => r.Key == input));
return(response.Value);
}
public void Should_be_able_to_overwrite_existing_Policy_if_key_exists_when_inserting_using_Indexer()
{
Policy policy = Policy.NoOp();
string key = Guid.NewGuid().ToString();
_registry.Add(key, policy);
Policy policy_new = Policy.NoOp();
_registry[key] = policy_new;
_registry.Count.Should().Be(1);
_registry.Get <Policy>(key).Should().BeSameAs(policy_new);
}
public void ProcessRquestData(byte[] data, TaskCompletionSource <Message> responseRawDataAvailableTcs, TaskCompletionSource <object> responseSentTcs)
{
var applicationMessage = _messageFactory.CreateApplicationMessage(data);
IInboundReply reply = null;
var messageAvailable = applicationMessage.Message != null;
reply = _replyFactory.CreateIInboundReply(responseRawDataAvailableTcs, responseSentTcs);
var circuitBreaker = _policyRegistry.Get <CircuitBreakerPolicy <Message> >(applicationMessage.Backend);
var policy = Policy.HandleResult <Message>(r => r.IsFault).
Fallback(applicationMessage.Message, (x) =>
{
reply.Reply(applicationMessage.ErrorMessage, TimeSpan.FromSeconds(1));
}).Wrap(circuitBreaker);
policy.Execute(() =>
{
if (messageAvailable)
{
_inboundQueue.Enqueue(new Tuple <bool, Message, IInboundReply>(messageAvailable, applicationMessage.Message, reply));
}
return(applicationMessage.Message);
});
}
public ProjectsController(IHttpClientFactory clientFactory, IPolicyRegistry <string> policyRegistry)
{
this.clientFactory = clientFactory;
this.policyRegistry = policyRegistry;
//this.cachePolicy = policyRegistry.Get<AsyncCachePolicy<HttpResponseMessage>>(PolicyNames.CachePolicy);
this.cachePolicy = policyRegistry.Get <AsyncCachePolicy <HttpResponseMessage> >(PolicyNames.CacheOnlyOkPolicy);
}
protected QueueBase(string connectionString, IPolicyRegistry <string> policyRegistry, string policyRegistryKey, CancellationToken cancellationToken)
{
CancellationToken = cancellationToken;
StorageAccount = CloudStorageAccount.Parse(connectionString);
QueueClient = StorageAccount.CreateCloudQueueClient();
_cachingPolicy = policyRegistry.Get <ISyncPolicy <CloudQueue> >(policyRegistryKey);
}
public UserController(HttpClient client, IResilientHttpClient resilientClient, IPolicyRegistry <string> registry)
{
_client = client;
// _circuitBreakerPolicy = circuitBreakerPolicy;
_resilientClient = resilientClient;
_cachePolicy = registry.Get <CachePolicy <HttpResponseMessage> >("cache");
}
public void ProcessResponseData(byte[] data)
{
var applicationMessage = _messageFactory.CreateApplicationMessage(data);
var circuitBreaker = _policyRegistry.Get <CircuitBreakerPolicy <Message> >(applicationMessage.Backend);
circuitBreaker.Execute(() => applicationMessage.Message);
_tcs.TrySetResult(applicationMessage.Message);
}
public IDictionary <string, CircuitState> GetCircuitStates()
{
var dict = new Dictionary <string, CircuitState>(Registry.Count);
foreach (var policy in Registry)
{
dict.Add(policy.Key, Registry.Get <ICircuitBreakerPolicy>(policy.Key).CircuitState);
}
return(dict);
}
public async Task <IActionResult> Get(Guid id)
{
//policy inside the MessageHandler
//var response = await azureDevOpsApi.GetProject(id);
//policy injected from registry
var retryPolicy = policyRegistry.Get <IAsyncPolicy <ApiResponse <Project> > >(PolicyNames.RefitRetryPolicy);
var response = await retryPolicy.ExecuteAsync(() => azureDevOpsApi.GetProject(id));
return(!response.IsSuccessStatusCode ?
StatusCode((int)response.StatusCode, response.Error.Content) :
Ok(response.Content));
}
public async Task <IActionResult> Get(int id)
{
string requestEndpoint = $"inventory/{id}";
IAsyncPolicy <HttpResponseMessage> httpRetryPolicy =
_policyRegistry.Get <IAsyncPolicy <HttpResponseMessage> >("SimpleHttpRetryPolicy");
IAsyncPolicy httpClientTimeoutExceptionPolicy =
_policyRegistry.Get <IAsyncPolicy>("SimpleHttpTimeoutPolicy");
HttpResponseMessage response =
await httpRetryPolicy.ExecuteAsync(
() => httpClientTimeoutExceptionPolicy.ExecuteAsync(
async token => await _httpClient.GetAsync(requestEndpoint, token), CancellationToken.None));
if (response.IsSuccessStatusCode)
{
int itemsInStock = JsonConvert.DeserializeObject <int>(await response.Content.ReadAsStringAsync());
return(Ok(itemsInStock));
}
return(StatusCode((int)response.StatusCode, response.Content.ReadAsStringAsync()));
}
public MeetupService(IOptions <MeetupEndPoint> meetupOptions,
IPolicyRegistry <string> policyRegistry,
IHttpClientFactory httpClientFactory)
{
_meetupOptions = meetupOptions;
_client = httpClientFactory.CreateClient();
_client.BaseAddress = new Uri(meetupOptions.Value.Url);
_cachePolicy = policyRegistry.Get <IAsyncPolicy <HttpResponseMessage> >("myCachePolicy");
if (Token == null)
{
Token = new AuthToken();
Token.Token = _meetupOptions.Value.Token;
Token.RefreshToken = _meetupOptions.Value.RefreshToken;
}
}
public async Task <LoginResponse> Login()
{
var timeoutPolicy = _registry.Get <IAsyncPolicy>("thirtySecondTimeoutPolicy");
var asyncGetPolicy = _registry.Get <IAsyncPolicy <HttpResponseMessage> >("thriceTriplingRetryPolicy");
var readStreamPolicy = _registry.Get <IAsyncPolicy <LoginResponse> >("loginResponseRetryPolicy");
var cachePolicy = _registry.Get <IAsyncPolicy <LoginResponse> >("oneMinuteLoginCachePolicy");
Context policyExecutionContext = new Context($"AuthLogin");
return(await cachePolicy.ExecuteAsync(async context =>
await readStreamPolicy.ExecuteAsync(async() =>
{
HttpResponseMessage responseMessage = await asyncGetPolicy.ExecuteAsync(async() =>
await timeoutPolicy.ExecuteAsync(async token =>
await _httpClient.PostAsync(_url, _loginBody, token), CancellationToken.None));
if (!responseMessage.IsSuccessStatusCode)
{
throw new HttpResponseException(responseMessage);
}
string content = await responseMessage.Content.ReadAsStringAsync();
return JsonConvert.DeserializeObject <LoginResponse>(content);
}),
policyExecutionContext
));
}
public static IHttpClientBuilder AddLCUTimeoutPolicy(this IHttpClientBuilder httpClientBuilder,
IPolicyRegistry <string> registry)
{
return(httpClientBuilder
.AddPolicyHandler(request =>
{
var timeoutPolicy = "regular";
if (request.Method != HttpMethod.Get)
{
timeoutPolicy = "long";
}
return registry.Get <IAsyncPolicy <HttpResponseMessage> >(timeoutPolicy);
}));
}
/// <summary>
/// Inject a registry created elsewhere, and execute a policy from it.
/// </summary>
/// <param name="registry"></param>
/// <returns></returns>
public void RetryUsingRegistry(IPolicyRegistry <string> registry)
{
var results = new Results();
var policy = registry.Get <RetryPolicy>("DefaultRetry");
for (int i = 1; i <= 20; i++)
{
int response = -1;
policy.Execute(() =>
{
response = _service.MostlyBad(i);
Program.ResultsLog.Success++;
});
//Console.WriteLine($"Request {i} | Response {response}");
}
}
public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] MyClaim myClaim,
[Inject] IClaimsClient claimsClient,
[Inject] IPolicyRegistry <string> policyRegistry,
ILogger log)
{
string referenceNum = default(string);
var authPolicy = policyRegistry.Get <IAsyncPolicy <string> >("auth_policy");
await authPolicy.ExecuteAsync(
async() =>
referenceNum = await claimsClient.PostAsync(myClaim)
);
return(new OkObjectResult(referenceNum));
}
public async Task <string> Get(int id)
{
var policy = _policyRegistry.Get <AsyncCachePolicy <HttpResponseMessage> >("cache");
var executionContext = new Context($"id-{id}");
var response =
await policy.ExecuteAsync(async (x) => await _httpClient.GetAsync($"weatherforecast?id={id}"), executionContext);
var responseString = await response.Content.ReadAsStringAsync();
if (response.IsSuccessStatusCode)
{
return(responseString);
}
throw new Exception(responseString);
}
public void ExecuteGetCall(string name, string endpoint, string policyName)
{
var policy = _policyRegistry.Get <IAsyncPolicy <HttpResponseMessage> >(policyName);
policy.ExecuteAsync(async context =>
{
HttpResponseMessage result = null;
try
{
using (var httpClient = _httpClientFactory.CreateClient(name))
{
result = await httpClient.GetAsync(endpoint);
if (result == null)
{
_logger.LogWarning("Result was null");
}
else if (result.Content == null)
{
_logger.LogWarning("Result.Content was null");
}
else
{
var content = await result.Content.ReadAsStringAsync();
_logger.LogInformation($"Result is <{content}>");
}
}
}
catch (HttpRequestException hre)
{
_logger.LogError($"HttpRequestException occurred <{hre.Message}>");
}
catch (Polly.CircuitBreaker.BrokenCircuitException bce)
{
_logger.LogError($"BrokenCircuitException occurred <{bce.Message}>");
}
return(result);
}, new Context("myCachedValue"));
//await Task.CompletedTask;
}
public async Task <T> Invoke <T>(BetfairMethod method, BetfairRequestParameters requestParameters)
{
if (method == BetfairMethod.UnknownMethod)
{
throw new ArgumentOutOfRangeException("Method must be defined", "method");
}
string methodName = BetfairMethodExtensions.GetMethodName(method);
IDictionary <string, object> args = new Dictionary <string, object>()
{
{ "filter", requestParameters?.Filter ?? new MarketFilter() }
};
if (requestParameters != null && requestParameters.MarketProjections != null &&
requestParameters.MarketProjections.Count > 0)
{
args["marketProjection"] = requestParameters.MarketProjections;
}
if (requestParameters != null && requestParameters.MaxResults != null &&
requestParameters.MaxResults > 0 && requestParameters.MaxResults <= 1000)
{
args["maxResults"] = requestParameters.MaxResults;
}
LoginResponse loginResponse = await _authenticationClient.Login();
if (loginResponse == null)
{
throw new AuthenticationException("LoginResponse is null");
}
else if (loginResponse.SessionToken == null)
{
throw new AuthenticationException("LoginResponse does not contain SessionToken");
}
else
{
_customHeaders[_sessionTokenHeader] = loginResponse.SessionToken;
}
var json = JsonConvert.SerializeObject(new JsonRequest {
Method = _methodPrefix + methodName, Id = 1, Params = args
},
new JsonSerializerSettings
{
ContractResolver = new CamelCasePropertyNamesContractResolver()
});
var content = new StringContent(json, Encoding.UTF8, _requestContentType);
foreach (var header in _customHeaders)
{
content.Headers.Add(header.Key, header.Value);
}
var timeoutPolicy = _registry.Get <IAsyncPolicy>("thirtySecondTimeoutPolicy");
var asyncGetPolicy = _registry.Get <IAsyncPolicy <HttpResponseMessage> >("thriceTriplingRetryPolicy");
IAsyncPolicy <JsonResponse <T> > readStreamPolicy = Policy.HandleResult <JsonResponse <T> >(jr => jr.HasError)
.Or <TimeoutRejectedException>()
.WaitAndRetryAsync(_retryDelays);
JsonResponse <T> response = await readStreamPolicy.ExecuteAsync(async() =>
{
HttpResponseMessage responseMessage = await asyncGetPolicy.ExecuteAsync(async() =>
await timeoutPolicy.ExecuteAsync(async token =>
await _httpClient.PostAsync("", content, token), CancellationToken.None));
if (!responseMessage.IsSuccessStatusCode)
{
throw new HttpResponseException(responseMessage);
}
string responseContent = await responseMessage.Content.ReadAsStringAsync();
return(JsonConvert.DeserializeObject <JsonResponse <T> >(responseContent));
});
if (response.HasError)
{
throw ReconstituteException(response.Error);
}
else
{
return(response.Result);
}
}
public HomeController(IPolicyRegistry <string> myRegistry, HttpClient httpClient)
{
_httpClient = httpClient;
_cachePolicy = myRegistry.Get <CachePolicy <HttpResponseMessage> >("myPollyCache");
}
private void CheckCircuit(Action send)
{
_policyRegistry.Get <Policy>(CIRCUITBREAKER).Execute(send);
}
public CatalogController(IPolicyRegistry <string> myRegistry, HttpClient httpClient)
{
_httpClient = httpClient;
_cachePolicy = myRegistry.Get <CachePolicy <HttpResponseMessage> >("myLocalCachePolicy");
}