private async Task <bool> TryHandleSpecialEndpoints(HttpListenerContext context)
{
try
{
foreach (var customEndpoint in CustomEndpoints)
{
if (await customEndpoint.TryHandle(context,
(data, status, type) => TryWriteResponse(context, data, status, type)))
{
if (RequestTimings.Current.Request.ElapsedMS != null)
{
_metaEndpointsRoundtripTime.Record((long)RequestTimings.Current.Request.ElapsedMS,
TimeUnit.Milliseconds);
}
return(true);
}
}
}
catch (Exception e)
{
var ex = GetRelevantException(e);
await TryWriteResponse(context, ExceptionSerializer.Serialize(ex), GetExceptionStatusCode(ex));
return(true);
}
return(false);
}
public virtual void GetObjectData(SerializationInfo info, StreamingContext context)
{
if (info == null)
{
throw new ArgumentNullException(nameof(info));
}
ExceptionSerializer.GetObjectData(this, info, context);
}
public void LegacyExceptionsCanBeDeserialized()
{
var original = MakeItThrown(new StubException());
var json = ExceptionSerializer.LegacyToJson(original);
var deserialized = Serializer.FromJson <Exception>(json);
Assert.AreEqual(original.ToString(), deserialized.ToString());
Assert.AreEqual(original.GetType(), deserialized.GetType());
}
public virtual void GetObjectData(SerializationInfo info, StreamingContext context)
{
if (info == null)
{
throw new ArgumentNullException(nameof(info));
}
ExceptionSerializer.GetObjectData(this, info, context);
info.AddValue("ParamName", _paramName, typeof(string));
}
/// <summary>
/// Sets the <see cref="T:System.Runtime.Serialization.SerializationInfo"/> with information about
/// the exception.
/// </summary>
/// <param name="info">The <see cref="T:System.Runtime.Serialization.SerializationInfo"/> that holds
/// the serialized object data about the exception being thrown.</param>
/// <param name="context">The <see cref="T:System.Runtime.Serialization.StreamingContext"/> that
/// contains contextual information about the source or destination. </param>
/// <exception cref="T:System.ArgumentNullException">The <paramref name="info"/> argument is null.</exception>
public void GetObjectData(SerializationInfo info, StreamingContext context)
{
if (info == null)
{
throw new ArgumentNullException(nameof(info));
}
ExceptionSerializer.GetObjectData(this, info, context);
Exception[] innerExceptions = new Exception[m_innerExceptions.Count];
m_innerExceptions.CopyTo(innerExceptions, 0);
info.AddValue("InnerExceptions", innerExceptions, typeof(Exception[]));
}
// To Check if JobQueue has a New Job to be executed
private void NewJobsCheckTimer_Elapsed(object sender, ElapsedEventArgs e)
{
try
{
// If Jobs Queue is not Empty & No (Server or Attended) Job is being executed
if (!JobsQueueManager.IsQueueEmpty() && !IsEngineBusy)
{
SetEngineStatus(true);
ExecuteJob();
SetEngineStatus(false);
}
}
catch (Exception ex)
{
// Log Event
_fileLogger.LogEvent("Job Execution", $"Error occurred while executing the job; ErrorMessage = {ex.ToString()}",
LogEventLevel.Error);
try
{
var job = JobsQueueManager.DequeueJob();
// Update Automation Execution Log (Execution Failure)
if (_executionLog != null)
{
_executionLog.Status = "Job has failed";
_executionLog.HasErrors = true;
_executionLog.ErrorMessage = ex.Message;
_executionLog.ErrorDetails = ex.ToString();
ExecutionLogsAPIManager.UpdateExecutionLog(_authAPIManager, _executionLog);
}
// Update Job Status (Failed)
JobsAPIManager.UpdateJobStatus(_authAPIManager, job.AgentId.ToString(), job.Id.ToString(),
JobStatusType.Failed, new JobErrorViewModel(
ex.Message,
ex.GetType().GetProperty("ErrorCode")?.GetValue(ex, null)?.ToString() ?? string.Empty,
ExceptionSerializer.Serialize(ex))
);
}
catch (Exception exception)
{
// Log Event
_fileLogger.LogEvent("Job Execution", $"Error occurred while updating status on job failure; " +
$"ErrorMessage = {exception}", LogEventLevel.Error);
}
_isSuccessfulExecution = false;
_agentHeartbeat.LastReportedMessage = "Job execution failed";
SetEngineStatus(false);
}
}
public void SerializedExceptionCanBeDotNetSerialized()
{
var payload = new JsonObject()
.Add("foo", "bar")
.Add("baz", 42);
var original = new SerializedException(payload);
var json = ExceptionSerializer.LegacyToJson(original);
var deserialized = ExceptionSerializer.LegacyFromJson(json);
Assert.AreEqual(typeof(SerializedException), deserialized.GetType());
Assert.AreEqual(
original.SerializedValue.ToString(),
((SerializedException)deserialized).SerializedValue.ToString()
);
}
/// <summary>
/// Initializes a new instance of the <see cref="AggregateException"/> class with serialized data.
/// </summary>
/// <param name="info">The <see cref="T:System.Runtime.Serialization.SerializationInfo"/> that holds
/// the serialized object data about the exception being thrown.</param>
/// <param name="context">The <see cref="T:System.Runtime.Serialization.StreamingContext"/> that
/// contains contextual information about the source or destination. </param>
/// <exception cref="T:System.ArgumentNullException">The <paramref name="info"/> argument is null.</exception>
/// <exception cref="T:System.Runtime.Serialization.SerializationException">The exception could not be deserialized correctly.</exception>
protected AggregateException(SerializationInfo info, StreamingContext context)
{
if (info == null)
{
throw new ArgumentNullException(nameof(info));
}
ExceptionSerializer.SetObjectData(this, info, context);
Exception[] innerExceptions = info.GetValue("InnerExceptions", typeof(Exception[])) as Exception[];
if (innerExceptions == null)
{
throw new SerializationException(SR.AggregateException_DeserializationFailure);
}
m_innerExceptions = new ReadOnlyCollection <Exception>(innerExceptions);
}
private async Task HandleRequest(HttpListenerContext context)
{
RequestTimings.ClearCurrentTimings();
using (context.Response)
{
var sw = Stopwatch.StartNew();
// Special endpoints should not be logged/measured/traced like regular endpoints
try
{
foreach (var customEndpoint in CustomEndpoints)
{
if (await customEndpoint.TryHandle(context, (data, status, type) => TryWriteResponse(context, data, status, type)))
{
if (RequestTimings.Current.Request.ElapsedMS != null)
{
_metaEndpointsRoundtripTime.Record((long)RequestTimings.Current.Request.ElapsedMS, TimeUnit.Milliseconds);
}
return;
}
}
}
catch (Exception e)
{
var ex = GetRelevantException(e);
await TryWriteResponse(context, ExceptionSerializer.Serialize(ex), GetExceptionStatusCode(ex));
return;
}
// Regular endpoint handling
using (_activeRequestsCounter.NewContext("Request"))
{
TracingContext.SetUpStorage();
RequestTimings.GetOrCreate(); // initialize request timing context
Exception ex;
Exception actualException = null;
string methodName = null;
// Initialize with empty object for protocol backwards-compatibility.
var requestData = new HttpServiceRequest {
TracingData = new TracingData()
};
ServiceMethod serviceMethod = null;
try
{
try
{
ValidateRequest(context);
await CheckSecureConnection(context);
requestData = await ParseRequest(context);
TracingContext.SetOverrides(requestData.Overrides);
serviceMethod = ServiceEndPointDefinition.Resolve(requestData.Target);
methodName = serviceMethod.ServiceInterfaceMethod.Name;
}
catch (Exception e)
{
actualException = e;
if (e is RequestException)
{
throw;
}
throw new RequestException("Invalid request", e);
}
RejectRequestIfLateOrOverloaded();
var responseJson = await GetResponse(context, serviceMethod, requestData);
await TryWriteResponse(context, responseJson);
_successCounter.Increment();
}
catch (Exception e)
{
actualException = actualException ?? e;
_failureCounter.Increment();
ex = GetRelevantException(e);
string json = _serializationTime.Time(() => ExceptionSerializer.Serialize(ex));
await TryWriteResponse(context, json, GetExceptionStatusCode(ex));
}
finally
{
sw.Stop();
_roundtripTime.Record((long)(sw.Elapsed.TotalMilliseconds * 1000000), TimeUnit.Nanoseconds);
if (methodName != null)
{
_endpointContext.Timer(methodName, Unit.Requests).Record((long)(sw.Elapsed.TotalMilliseconds * 1000000), TimeUnit.Nanoseconds);
}
_serverRequestPublisher.TryPublish(requestData, actualException, serviceMethod, sw.Elapsed.TotalMilliseconds);
}
}
}
}
protected InvalidTimeZoneException(SerializationInfo info, StreamingContext context)
{
ExceptionSerializer.SetObjectData(this, info, context);
}
protected WaitHandleCannotBeOpenedException(SerializationInfo info, StreamingContext context)
//: base(info, context)
{
ExceptionSerializer.SetObjectData(this, info, context);
}
protected LockRecursionException(SerializationInfo info, StreamingContext context)
//: base(info, context)
{
ExceptionSerializer.SetObjectData(this, info, context);
}
protected ArgumentOutOfRangeException2(SerializationInfo info, StreamingContext context)
{
ExceptionSerializer.SetObjectData(this, info, context);
_actualValue = info.GetValue("ActualValue", typeof(object));
}
protected Exception2(SerializationInfo info, StreamingContext context)
{
ExceptionSerializer.SetObjectData(this, info, context);
}
protected SynchronizationLockException(SerializationInfo info, StreamingContext context)
//: base(info, context)
{
ExceptionSerializer.SetObjectData(this, info, context);
}
protected ArgumentException2(SerializationInfo info, StreamingContext context)
{
ExceptionSerializer.SetObjectData(this, info, context);
_paramName = info.GetString("ParamName");
}
private async Task <object> InvokeCore(HttpServiceRequest request, Type resultReturnType, JsonSerializerSettings jsonSettings)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
request.TracingData = new TracingData
{
HostName = CurrentApplicationInfo.HostName?.ToUpperInvariant(),
ServiceName = CurrentApplicationInfo.Name,
RequestID = TracingContext.TryGetRequestID(),
SpanID = Guid.NewGuid().ToString("N"), //Each call is new span
ParentSpanID = TracingContext.TryGetSpanID(),
SpanStartTime = DateTimeOffset.UtcNow,
AbandonRequestBy = TracingContext.AbandonRequestBy
};
PrepareRequest?.Invoke(request);
while (true)
{
var config = GetConfig();
var clientCallEvent = EventPublisher.CreateEvent();
clientCallEvent.TargetService = ServiceName;
clientCallEvent.RequestId = request.TracingData?.RequestID;
clientCallEvent.TargetMethod = request.Target.MethodName;
clientCallEvent.SpanId = request.TracingData?.SpanID;
clientCallEvent.ParentSpanId = request.TracingData?.ParentSpanID;
string responseContent;
HttpResponseMessage response;
var nodeAndLoadBalancer = await ServiceDiscovery.GetNode().ConfigureAwait(false); // can throw
int?effectivePort = GetEffectivePort(nodeAndLoadBalancer.Node, config);
if (effectivePort == null)
{
throw new ConfigurationException("Cannot access service. Service Port not configured. See tags to find missing configuration", unencrypted: new Tags {
{ "ServiceName", ServiceName },
{ "Required configuration key", $"Discovery.{ServiceName}.DefaultPort" }
});
}
// The URL is only for a nice experience in Fiddler, it's never parsed/used for anything.
var uri = BuildUri(nodeAndLoadBalancer.Node.Hostname, effectivePort.Value, config) + ServiceName;
if (request.Target.MethodName != null)
{
uri += $".{request.Target.MethodName}";
}
if (request.Target.Endpoint != null)
{
uri += $"/{request.Target.Endpoint}";
}
try
{
Log.Debug(_ => _("ServiceProxy: Calling remote service. See tags for details.",
unencryptedTags: new
{
remoteEndpoint = nodeAndLoadBalancer.Node.Hostname,
remotePort = effectivePort,
remoteServiceName = ServiceName,
remoteMethodName = request.Target.MethodName
}));
clientCallEvent.TargetHostName = nodeAndLoadBalancer.Node.Hostname;
clientCallEvent.TargetPort = effectivePort.Value;
request.Overrides = TracingContext.TryGetOverrides()?.ShallowCloneWithDifferentPreferredEnvironment(nodeAndLoadBalancer.PreferredEnvironment)
?? new RequestOverrides {
PreferredEnvironment = nodeAndLoadBalancer.PreferredEnvironment
};
string requestContent = _serializationTime.Time(() => JsonConvert.SerializeObject(request, jsonSettings));
var httpContent = new StringContent(requestContent, Encoding.UTF8, "application/json");
httpContent.Headers.Add(GigyaHttpHeaders.ProtocolVersion, HttpServiceRequest.ProtocolVersion);
clientCallEvent.RequestStartTimestamp = Stopwatch.GetTimestamp();
try
{
response = await GetHttpClient(config).PostAsync(uri, httpContent).ConfigureAwait(false);
responseContent = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
}
finally
{
clientCallEvent.ResponseEndTimestamp = Stopwatch.GetTimestamp();
}
if (response.Headers.TryGetValues(GigyaHttpHeaders.ExecutionTime, out IEnumerable <string> values))
{
var time = values.FirstOrDefault();
if (TimeSpan.TryParse(time, out TimeSpan executionTime))
{
clientCallEvent.ServerTimeMs = executionTime.TotalMilliseconds;
}
}
}
catch (HttpRequestException ex)
{
Log.Error("The remote service failed to return a valid HTTP response. Continuing to next " +
"host. See tags for URL and exception for details.",
exception: ex,
unencryptedTags: new { uri });
_hostFailureCounter.Increment("RequestFailure");
clientCallEvent.Exception = ex;
EventPublisher.TryPublish(clientCallEvent); // fire and forget!
if (nodeAndLoadBalancer.LoadBalancer != null)
{
nodeAndLoadBalancer.LoadBalancer.ReportUnreachable(nodeAndLoadBalancer.Node, ex);
continue;
}
throw;
}
catch (TaskCanceledException ex)
{
_failureCounter.Increment("RequestTimeout");
Exception rex = new RemoteServiceException("The request to the remote service exceeded the " +
"allotted timeout. See the 'RequestUri' property on this exception for the URL that was " +
"called and the tag 'requestTimeout' for the configured timeout.",
uri,
ex,
unencrypted: new Tags
{
{ "requestTimeout", LastHttpClient?.Timeout.ToString() },
{ "requestUri", uri }
});
clientCallEvent.Exception = rex;
EventPublisher.TryPublish(clientCallEvent); // fire and forget!
throw rex;
}
if (response.Headers.Contains(GigyaHttpHeaders.ServerHostname) || response.Headers.Contains(GigyaHttpHeaders.ProtocolVersion))
{
try
{
if (response.IsSuccessStatusCode)
{
var returnObj = _deserializationTime.Time(() => JsonConvert.DeserializeObject(responseContent, resultReturnType, jsonSettings));
clientCallEvent.ErrCode = 0;
EventPublisher.TryPublish(clientCallEvent); // fire and forget!
_successCounter.Increment();
return(returnObj);
}
else
{
Exception remoteException;
try
{
remoteException = _deserializationTime.Time(() => ExceptionSerializer.Deserialize(responseContent));
}
catch (Exception ex)
{
_applicationExceptionCounter.Increment("ExceptionDeserializationFailure");
throw new RemoteServiceException("The remote service returned a failure response " +
"that failed to deserialize. See the 'RequestUri' property on this exception " +
"for the URL that was called, the inner exception for the exact error and the " +
"'responseContent' encrypted tag for the original response content.",
uri,
ex,
unencrypted: new Tags {
{ "requestUri", uri }
},
encrypted: new Tags {
{ "responseContent", responseContent }
});
}
_applicationExceptionCounter.Increment();
clientCallEvent.Exception = remoteException;
EventPublisher.TryPublish(clientCallEvent); // fire and forget!
if (remoteException is RequestException || remoteException is EnvironmentException)
{
ExceptionDispatchInfo.Capture(remoteException).Throw();
}
if (remoteException is UnhandledException)
{
remoteException = remoteException.InnerException;
}
throw new RemoteServiceException("The remote service returned a failure response. See " +
"the 'RequestUri' property on this exception for the URL that was called, and the " +
"inner exception for details.",
uri,
remoteException,
unencrypted: new Tags {
{ "requestUri", uri }
});
}
}
catch (JsonException ex)
{
_failureCounter.Increment("Serialization");
Log.Error("The remote service returned a response with JSON that failed " +
"deserialization. See the 'uri' tag for the URL that was called, the exception for the " +
"exact error and the 'responseContent' encrypted tag for the original response content.",
exception: ex,
unencryptedTags: new { uri },
encryptedTags: new { responseContent });
clientCallEvent.Exception = ex;
EventPublisher.TryPublish(clientCallEvent); // fire and forget!
throw new RemoteServiceException("The remote service returned a response with JSON that " +
"failed deserialization. See the 'RequestUri' property on this exception for the URL " +
"that was called, the inner exception for the exact error and the 'responseContent' " +
"encrypted tag for the original response content.",
uri,
ex,
new Tags {
{ "responseContent", responseContent }
},
new Tags {
{ "requestUri", uri }
});
}
}
else
{
var exception = response.StatusCode == HttpStatusCode.ServiceUnavailable ?
new Exception($"The remote service is unavailable (503) and is not recognized as a Gigya host at uri: {uri}") :
new Exception($"The remote service returned a response but is not recognized as a Gigya host at uri: {uri}");
nodeAndLoadBalancer.LoadBalancer.ReportUnreachable(nodeAndLoadBalancer.Node, exception);
_hostFailureCounter.Increment("NotGigyaHost");
if (response.StatusCode == HttpStatusCode.ServiceUnavailable)
{
Log.Error("The remote service is unavailable (503) and is not recognized as a Gigya host. Continuing to next host.", unencryptedTags: new { uri });
}
else
{
Log.Error("The remote service returned a response but is not recognized as a Gigya host. Continuing to next host.", unencryptedTags: new { uri, statusCode = response.StatusCode }, encryptedTags: new { responseContent });
}
clientCallEvent.ErrCode = 500001; //(int)GSErrors.General_Server_Error;
EventPublisher.TryPublish(clientCallEvent); // fire and forget!
}
}
}
protected TypeAccessException(SerializationInfo info, StreamingContext context)
{
ExceptionSerializer.SetObjectData(this, info, context);
this.SetErrorCode(COR_E_TYPEACCESS);
}
public StandardTypeDecomposerSelector(ExceptionSerializer exceptionSerializer)
{
_exceptionSerializer = exceptionSerializer;
}
private async Task HandleRequest(HttpListenerContext context)
{
RequestTimings.ClearCurrentTimings();
using (context.Response)
{
var sw = Stopwatch.StartNew();
// Special endpoints should not be logged/measured/traced like regular endpoints
if (await TryHandleSpecialEndpoints(context))
{
return;
}
// Regular endpoint handling
using (_activeRequestsCounter.NewContext("Request"))
{
TracingContext.SetUpStorage();
RequestTimings.GetOrCreate(); // initialize request timing context
string methodName = null;
// Initialize with empty object for protocol backwards-compatibility.
var requestData = new HttpServiceRequest {
TracingData = new TracingData()
};
ServiceMethod serviceMethod = null;
ServiceCallEvent callEvent = _serverRequestPublisher.GetNewCallEvent();
try
{
try
{
ValidateRequest(context);
await CheckSecureConnection(context);
requestData = await ParseRequest(context);
SetCallEventRequestData(callEvent, requestData);
TracingContext.SetOverrides(requestData.Overrides);
serviceMethod = ServiceEndPointDefinition.Resolve(requestData.Target);
callEvent.CalledServiceName = serviceMethod.GrainInterfaceType.Name;
methodName = serviceMethod.ServiceInterfaceMethod.Name;
}
catch (Exception e)
{
callEvent.Exception = e;
if (e is RequestException)
{
throw;
}
throw new RequestException("Invalid request", e);
}
RejectRequestIfLateOrOverloaded();
var responseJson = await GetResponse(context, serviceMethod, requestData);
if (await TryWriteResponse(context, responseJson, serviceCallEvent: callEvent))
{
callEvent.ErrCode = 0;
_successCounter.Increment();
}
else
{
_failureCounter.Increment();
}
}
catch (Exception e)
{
callEvent.Exception = callEvent.Exception ?? e;
_failureCounter.Increment();
Exception ex = GetRelevantException(e);
string json = _serializationTime.Time(() => ExceptionSerializer.Serialize(ex));
await TryWriteResponse(context, json, GetExceptionStatusCode(ex), serviceCallEvent : callEvent);
}
finally
{
sw.Stop();
callEvent.ActualTotalTime = sw.Elapsed.TotalMilliseconds;
_roundtripTime.Record((long)(sw.Elapsed.TotalMilliseconds * 1000000), TimeUnit.Nanoseconds);
if (methodName != null)
{
_endpointContext.Timer(methodName, Unit.Requests).Record((long)(sw.Elapsed.TotalMilliseconds * 1000000), TimeUnit.Nanoseconds);
}
IEnumerable <DictionaryEntry> arguments = (requestData.Arguments ?? new OrderedDictionary()).Cast <DictionaryEntry>();
_serverRequestPublisher.TryPublish(callEvent, arguments, serviceMethod);
}
}
}
}
protected SemaphoreFullException(SerializationInfo info, StreamingContext context)
{
ExceptionSerializer.SetObjectData(this, info, context);
}
public void GetObjectData(SerializationInfo info, StreamingContext context)
{
ExceptionSerializer.GetObjectData(this, info, context);
}
/// <summary>
/// Initializes a new instance of the BarrierPostPhaseException class with serialized data.
/// </summary>
/// <param name="info">The object that holds the serialized object data.</param>
/// <param name="context">The contextual information about the source or destination.</param>
protected BarrierPostPhaseException(SerializationInfo info, StreamingContext context)
//: base(info, context)
{
ExceptionSerializer.SetObjectData(this, info, context);
}
private async Task HandleRequest(HttpListenerContext context, long ticks, long timeFromLastReq)
{
try
{
var deltaDelayTicks = DateTime.UtcNow.Ticks - ticks;
var sw = Stopwatch.StartNew();
RequestTimings.ClearCurrentTimings();
using (context.Response)
{
// Special endpoints should not be logged/measured/traced like regular endpoints
// Access is allowed without HTTPS verifications since they don't expose anything sensitive (e.g. config values are encrypted)
if (await TryHandleSpecialEndpoints(context))
{
return;
}
// Regular endpoint handling
using (_activeRequestsCounter.NewContext("Request"))
{
RequestTimings.GetOrCreate(); // initialize request timing context
string methodName = null;
// Initialize with empty object for protocol backwards-compatibility.
var requestData = new HttpServiceRequest {
TracingData = new TracingData()
};
object[] argumentsWithDefaults = null;
ServiceMethod serviceMethod = null;
ServiceCallEvent callEvent = _serverRequestPublisher.GetNewCallEvent();
try
{
try
{
await CheckSecureConnection(context);
ValidateRequest(context);
requestData = await ParseRequest(context);
//-----------------------------------------------------------------------------------------
// Don't move TracingContext writes main flow, IT have to be here, to avoid side changes
//-----------------------------------------------------------------------------------------
TracingContext.SetRequestID(requestData.TracingData.RequestID);
TracingContext.SpanStartTime = requestData.TracingData.SpanStartTime;
TracingContext.AbandonRequestBy = requestData.TracingData.AbandonRequestBy;
TracingContext.SetParentSpan(
requestData.TracingData.SpanID ?? Guid.NewGuid().ToString("N"));
TracingContext.SetOverrides(requestData.Overrides);
if (requestData.TracingData.Tags != null)
{
TracingContext.Tags = new ContextTags(requestData.TracingData.Tags);
}
TracingContext.AdditionalProperties = requestData.TracingData.AdditionalProperties;
callEvent.ServiceMethodSchema = context.Request.IsSecureConnection ? "HTTPS" : "HTTP";
SetCallEventRequestData(callEvent, requestData);
serviceMethod = ServiceEndPointDefinition.Resolve(requestData.Target);
callEvent.CalledServiceName = serviceMethod.GrainInterfaceType.Name;
methodName = serviceMethod.ServiceInterfaceMethod.Name;
var arguments = requestData.Target.IsWeaklyTyped
? GetParametersByName(serviceMethod, requestData.Arguments)
: requestData.Arguments.Values.Cast <object>().ToArray();
argumentsWithDefaults =
GetConvertedAndDefaultArguments(serviceMethod.ServiceInterfaceMethod, arguments);
if (_extendedDelayTimeLogging)
{
callEvent.RecvDateTicks = ticks;
callEvent.ReqStartupDeltaTicks = deltaDelayTicks;
callEvent.TimeFromLastReq = timeFromLastReq;
var outstandingReqs = Interlocked.Read(ref OutstandingRequests);
callEvent.OutstandingRequests = outstandingReqs;
if (deltaDelayTicks > 10_000_000)
{
callEvent.CollectionCountGen0 = GC.CollectionCount(0);
callEvent.CollectionCountGen1 = GC.CollectionCount(1);
callEvent.CollectionCountGen2 = GC.CollectionCount(2);
}
}
}
catch (Exception e)
{
callEvent.Exception = e;
if (e is RequestException)
{
throw;
}
throw new RequestException("Invalid request", e);
}
RejectRequestIfLateOrOverloaded();
var responseJson = await GetResponse(context, serviceMethod, requestData,
argumentsWithDefaults);
if (await TryWriteResponse(context, responseJson, serviceCallEvent: callEvent))
{
callEvent.ErrCode = 0;
_successCounter.Increment();
}
else
{
_failureCounter.Increment();
}
}
catch (Exception e)
{
callEvent.Exception = callEvent.Exception ?? e;
_failureCounter.Increment();
Exception ex = GetRelevantException(e);
string json = _serializationTime.Time(() => ExceptionSerializer.Serialize(ex));
await TryWriteResponse(context, json, GetExceptionStatusCode(ex),
serviceCallEvent : callEvent);
}
finally
{
sw.Stop();
callEvent.ActualTotalTime = sw.Elapsed.TotalMilliseconds;
_roundtripTime.Record((long)(sw.Elapsed.TotalMilliseconds * 1000000),
TimeUnit.Nanoseconds);
if (methodName != null)
{
_endpointContext.Timer(methodName, Unit.Requests)
.Record((long)(sw.Elapsed.TotalMilliseconds * 1000000), TimeUnit.Nanoseconds);
}
_serverRequestPublisher.TryPublish(callEvent, argumentsWithDefaults, serviceMethod);
}
}
}
}
finally
{
Interlocked.Decrement(ref OutstandingRequests);
}
}
private async Task HandleRequest(HttpListenerContext context)
{
RequestTimings.ClearCurrentTimings();
using (context.Response)
{
var sw = Stopwatch.StartNew();
// Special endpoints should not be logged/measured/traced like regular endpoints
if (await TryHandleSpecialEndpoints(context))
{
return;
}
// Regular endpoint handling
using (_activeRequestsCounter.NewContext("Request"))
{
RequestTimings.GetOrCreate(); // initialize request timing context
string methodName = null;
// Initialize with empty object for protocol backwards-compatibility.
var requestData = new HttpServiceRequest {
TracingData = new TracingData()
};
object[] argumentsWithDefaults = null;
ServiceMethod serviceMethod = null;
ServiceCallEvent callEvent = _serverRequestPublisher.GetNewCallEvent();
try
{
try
{
ValidateRequest(context);
await CheckSecureConnection(context);
requestData = await ParseRequest(context);
//-----------------------------------------------------------------------------------------
// Don't move TracingContext writes main flow, IT have to be here, to avoid side changes
//-----------------------------------------------------------------------------------------
TracingContext.SetRequestID(requestData.TracingData.RequestID);
TracingContext.SpanStartTime = requestData.TracingData.SpanStartTime;
TracingContext.AbandonRequestBy = requestData.TracingData.AbandonRequestBy;
TracingContext.SetParentSpan(requestData.TracingData.SpanID ?? Guid.NewGuid().ToString("N"));
SetCallEventRequestData(callEvent, requestData);
TracingContext.SetOverrides(requestData.Overrides);
serviceMethod = ServiceEndPointDefinition.Resolve(requestData.Target);
callEvent.CalledServiceName = serviceMethod.GrainInterfaceType.Name;
methodName = serviceMethod.ServiceInterfaceMethod.Name;
var arguments = requestData.Target.IsWeaklyTyped ? GetParametersByName(serviceMethod, requestData.Arguments) : requestData.Arguments.Values.Cast <object>().ToArray();
argumentsWithDefaults = GetConvertedAndDefaultArguments(serviceMethod.ServiceInterfaceMethod, arguments);
}
catch (Exception e)
{
callEvent.Exception = e;
if (e is RequestException)
{
throw;
}
throw new RequestException("Invalid request", e);
}
RejectRequestIfLateOrOverloaded();
var responseJson = await GetResponse(context, serviceMethod, requestData, argumentsWithDefaults);
if (await TryWriteResponse(context, responseJson, serviceCallEvent: callEvent))
{
callEvent.ErrCode = 0;
_successCounter.Increment();
}
else
{
_failureCounter.Increment();
}
}
catch (Exception e)
{
callEvent.Exception = callEvent.Exception ?? e;
_failureCounter.Increment();
Exception ex = GetRelevantException(e);
string json = _serializationTime.Time(() => ExceptionSerializer.Serialize(ex));
await TryWriteResponse(context, json, GetExceptionStatusCode(ex), serviceCallEvent : callEvent);
}
finally
{
sw.Stop();
callEvent.ActualTotalTime = sw.Elapsed.TotalMilliseconds;
_roundtripTime.Record((long)(sw.Elapsed.TotalMilliseconds * 1000000), TimeUnit.Nanoseconds);
if (methodName != null)
{
_endpointContext.Timer(methodName, Unit.Requests).Record((long)(sw.Elapsed.TotalMilliseconds * 1000000), TimeUnit.Nanoseconds);
}
_serverRequestPublisher.TryPublish(callEvent, argumentsWithDefaults, serviceMethod);
}
}
}
}
