public static Dictionary <string, string> ParseHeaders(
ServiceRemotingMessageHeaders messageHeaders,
out string operationId)
{
var result = new Dictionary <string, string>();
if (messageHeaders.TryGetHeaderValue(HeaderListHeaderName, out string listString))
{
string[] list = listString.Split(';');
foreach (string name in list)
{
if (messageHeaders.TryGetHeaderValue(CorrelationHeader.MakeHeader(name), out string value))
{
result[name] = value;
}
}
}
if (result.TryGetValue(KnownProperty.OperationId, out string operationIdString))
{
operationId = operationIdString;
result.Remove(KnownProperty.OperationId);
}
else
{
operationId = Guid.NewGuid().ToString();
}
return(result);
}
private async Task <byte[]> HandleAndTrackRequestAsync(ServiceRemotingMessageHeaders messageHeaders, Func <Task <byte[]> > doHandleRequest)
{
Dictionary <string, string> contextProperties = CorrelationHeader.ParseHeaders(messageHeaders, out string operationId);
// Create and prepare activity and RequestTelemetry objects to track this request.
//RequestTelemetry rt = new RequestTelemetry();
/*if (messageHeaders.TryGetHeaderValue(ServiceRemotingLoggingStrings.ParentIdHeaderName, out string parentId))
* {
* rt.Context.Operation.ParentId = parentId;
* rt.Context.Operation.Id = GetOperationId(parentId);
* }*/
// Do our best effort in setting the request name.
string methodName = null;
if (this._isActorService && messageHeaders.TryGetActorMethodAndInterfaceIds(out int methodId, out int interfaceId))
{
methodName = this._methodNameProvider.GetMethodName(interfaceId, methodId);
// Weird case, we couldn't find the method in the map. Just use the numerical id as the method name
if (string.IsNullOrEmpty(methodName))
{
methodName = methodId.ToString();
}
}
else
{
methodName = this._methodNameProvider.GetMethodName(messageHeaders.InterfaceId, messageHeaders.MethodId);
// Weird case, we couldn't find the method in the map. Just use the numerical id as the method name
if (string.IsNullOrEmpty(methodName))
{
methodName = messageHeaders.MethodId.ToString();
}
}
//rt.Name = methodName;
/*if (messageHeaders.TryGetHeaderValue(ServiceRemotingLoggingStrings.CorrelationContextHeaderName, out byte[] correlationBytes))
* {
* var baggageBytesStream = new MemoryStream(correlationBytes, writable: false);
* var dictionaryReader = XmlDictionaryReader.CreateBinaryReader(baggageBytesStream, XmlDictionaryReaderQuotas.Max);
* var baggage = this.baggageSerializer.Value.ReadObject(dictionaryReader) as IEnumerable<KeyValuePair<string, string>>;
*
* foreach (KeyValuePair<string, string> pair in baggage)
* {
* rt.Context.Properties.Add(pair.Key, pair.Value);
* }
* }*/
// Call StartOperation, this will create a new activity with the current activity being the parent.
// Since service remoting doesn't really have an URL like HTTP URL, we will do our best approximate that for
// the Name, Type, Data, and Target properties
//var operation = telemetryClient.StartOperation<RequestTelemetry>(rt);
string currentOperationId = _switchOperationContext ? Guid.NewGuid().ToString() : operationId;
using (L.Context(contextProperties))
using (L.Operation(currentOperationId))
{
try
{
byte[] result = await doHandleRequest().ConfigureAwait(false);
return(result);
}
catch (Exception e)
{
//telemetryClient.TrackException(e);
//operation.Telemetry.Success = false;
throw;
}
finally
{
// Stopping the operation, this will also pop the activity created by StartOperation off the activity stack.
//telemetryClient.StopOperation(operation);
}
}
}