public void OnNext(DiagnosticListener value)
{
var subscribedAny = false;
if (_listener != null)
{
if (value.Name == _listener.Name)
{
var listenerType = _listener.GetType();
if (_agent is null || _agent.SubscribedListeners.Add(listenerType) || _listener.AllowDuplicates)
{
_sourceSubscription = new SubscribedListenerDisposable(value.Subscribe(_listener), () => _agent.SubscribedListeners.Remove(listenerType));
_logger.Debug()
?.Log("Subscribed {DiagnosticListenerType} to `{DiagnosticListenerName}' events source",
listenerType.FullName, value.Name);
subscribedAny = true;
}
else
{
_logger.Debug()?.Log("{DiagnosticListenerType} already subscribed to `{DiagnosticListenerName}' events source",
listenerType.FullName, value.Name);
}
}
}
private void ProcessStartEvent(TRequest request, Uri requestUrl)
{
Logger.Trace()?.Log("Processing start event... Request URL: {RequestUrl}", Http.Sanitize(requestUrl));
var transaction = _agent.Tracer.CurrentTransaction;
if (transaction == null)
{
Logger.Debug()?.Log("No current transaction, skip creating span for outgoing HTTP request");
return;
}
var span = ExecutionSegmentCommon.StartSpanOnCurrentExecutionSegment(_agent, $"{RequestGetMethod(request)} {requestUrl.Host}",
ApiConstants.TypeExternal, ApiConstants.SubtypeHttp, InstrumentationFlag.HttpClient, true);
if (!ProcessingRequests.TryAdd(request, span))
{
// Consider improving error reporting - see https://github.com/elastic/apm-agent-dotnet/issues/280
Logger.Error()?.Log("Failed to add to ProcessingRequests - ???");
return;
}
if (!RequestHeadersContain(request, TraceContext.TraceParentHeaderName))
{
// We call TraceParent.BuildTraceparent explicitly instead of DistributedTracingData.SerializeToString because
// in the future we might change DistributedTracingData.SerializeToString to use some other internal format
// but here we want the string to be in W3C 'traceparent' header format.
RequestHeadersAdd(request, TraceContext.TraceParentHeaderName, TraceContext.BuildTraceparent(span.OutgoingDistributedTracingData));
}
if (transaction is Transaction t)
{
if (t.ConfigSnapshot.UseElasticTraceparentHeader)
{
if (!RequestHeadersContain(request, TraceContext.TraceParentHeaderNamePrefixed))
{
RequestHeadersAdd(request, TraceContext.TraceParentHeaderNamePrefixed,
TraceContext.BuildTraceparent(span.OutgoingDistributedTracingData));
}
}
}
if (!RequestHeadersContain(request, TraceContext.TraceStateHeaderName) && transaction.OutgoingDistributedTracingData.HasTraceState)
{
RequestHeadersAdd(request, TraceContext.TraceStateHeaderName,
TraceContext.BuildTraceState(transaction.OutgoingDistributedTracingData));
}
if (!span.ShouldBeSentToApmServer)
{
return;
}
span.Context.Http = new Http {
Method = RequestGetMethod(request)
};
span.Context.Http.SetUrl(requestUrl);
}
public void OnNext(DiagnosticListener value)
{
var subscribedAny = false;
foreach (var listener in _listeners)
{
if (value.Name == listener.Name)
{
_sourceSubscription.Add(value.Subscribe(listener));
_logger.Debug()
?.Log("Subscribed {DiagnosticListenerType} to `{DiagnosticListenerName}' events source",
listener.GetType().FullName, value.Name);
subscribedAny = true;
}
}
if (!subscribedAny)
{
_logger.Trace()
?.Log(
"There are no listeners in the current batch ({DiagnosticListeners}) that would like to subscribe to `{DiagnosticListenerName}' events source",
string.Join(", ", _listeners.Select(listener => listener.GetType().FullName)),
value.Name);
}
}
internal Transaction StartTransactionInternal(string name, string type, DistributedTracingData distributedTracingData = null)
{
var retVal = new Transaction(_logger, name, type, Sampler, distributedTracingData, _sender, _configurationReader,
CurrentExecutionSegmentsContainer)
{
Service = _service
};
_logger.Debug()?.Log("Starting {TransactionValue}", retVal);
return(retVal);
}
internal Transaction StartTransactionInternal(string name, string type, DistributedTracingData distributedTracingData = null)
{
var retVal = new Transaction(_logger, name, type, Sampler, distributedTracingData, _sender)
{
Service = _service
};
Agent.TransactionContainer.Transactions.Value = retVal;
_logger.Debug()?.Log("Starting {TransactionValue}", retVal);
return(retVal);
}
internal Transaction StartTransactionInternal(string name, string type, DistributedTracingData distributedTracingData = null, bool ignoreActivity = false)
{
var currentConfig = _configProvider.CurrentSnapshot;
var retVal = new Transaction(_logger, name, type, new Sampler(currentConfig.TransactionSampleRate), distributedTracingData
, _sender, currentConfig, CurrentExecutionSegmentsContainer, ignoreActivity)
{
Service = _service
};
_logger.Debug()?.Log("Starting {TransactionValue}", retVal);
return(retVal);
}
internal Transaction StartTransactionInternal(string name, string type)
{
var retVal = new Transaction(_logger, name, type, _sender)
{
Name = name,
Type = type,
Service = _service
};
Agent.TransactionContainer.Transactions.Value = retVal;
_logger.Debug()?.Log("Starting {TransactionValue}", retVal);
return(retVal);
}
private Transaction StartTransactionInternal(string name, string type, DistributedTracingData distributedTracingData = null,
bool ignoreActivity = false, long?timestamp = null, string id = null, string traceId = null
)
{
var currentConfig = _configurationProvider.CurrentSnapshot;
var retVal = new Transaction(_logger, name, type, new Sampler(currentConfig.TransactionSampleRate), distributedTracingData
, _sender, currentConfig, CurrentExecutionSegmentsContainer, _apmServerInfo, _breakdownMetricsProvider, ignoreActivity, timestamp, id)
{
Service = _service
};
_logger.Debug()?.Log("Starting {TransactionValue}", retVal);
return(retVal);
}
private void ProcessStartEvent(object eventValue, TRequest request, Uri requestUrl)
{
_logger.Trace()?.Log("Processing start event... Request URL: {RequestUrl}", requestUrl);
if (Agent.TransactionContainer.Transactions == null || Agent.TransactionContainer.Transactions.Value == null)
{
_logger.Debug()?.Log("No active transaction, skip creating span for outgoing HTTP request");
return;
}
var transaction = Agent.TransactionContainer.Transactions.Value;
var span = transaction.StartSpanInternal(
$"{RequestGetMethod(request)} {requestUrl.Host}",
ApiConstants.TypeExternal,
ApiConstants.SubtypeHttp);
if (!ProcessingRequests.TryAdd(request, span))
{
// Sergey_Kleyman_TODO: Implement error handling
_logger.Error()?.Log("Failed to add to ProcessingRequests - ???");
return;
}
if (!RequestHeadersContain(request, TraceParent.TraceParentHeaderName))
{
// We call TraceParent.BuildTraceparent explicitly instead of DistributedTracingData.SerializeToString because
// in the future we might change DistributedTracingData.SerializeToString to use some other internal format
// but here we want the string to be in W3C 'traceparent' header format.
RequestHeadersAdd(request, TraceParent.TraceParentHeaderName, TraceParent.BuildTraceparent(span.OutgoingDistributedTracingData));
}
if (transaction.IsSampled)
{
span.Context.Http = new Http
{
Url = requestUrl.ToString(),
Method = RequestGetMethod(request)
};
var frames = new StackTrace(true).GetFrames();
var stackFrames = StacktraceHelper.GenerateApmStackTrace(frames, _logger, span.Name);
span.StackTrace = stackFrames;
}
}
private void ProcessStartEvent(TRequest request, Uri requestUrl)
{
Logger.Trace()?.Log("Processing start event... Request URL: {RequestUrl}", requestUrl);
var transaction = _agent.Tracer.CurrentTransaction;
if (transaction == null)
{
Logger.Debug()?.Log("No current transaction, skip creating span for outgoing HTTP request");
return;
}
var currentExecutionSegment = _agent.Tracer.CurrentSpan ?? (IExecutionSegment)transaction;
var span = currentExecutionSegment.StartSpan(
$"{RequestGetMethod(request)} {requestUrl.Host}",
ApiConstants.TypeExternal,
ApiConstants.SubtypeHttp);
if (!ProcessingRequests.TryAdd(request, span))
{
// Consider improving error reporting - see https://github.com/elastic/apm-agent-dotnet/issues/280
Logger.Error()?.Log("Failed to add to ProcessingRequests - ???");
return;
}
if (!RequestHeadersContain(request, TraceParent.TraceParentHeaderName))
{
// We call TraceParent.BuildTraceparent explicitly instead of DistributedTracingData.SerializeToString because
// in the future we might change DistributedTracingData.SerializeToString to use some other internal format
// but here we want the string to be in W3C 'traceparent' header format.
RequestHeadersAdd(request, TraceParent.TraceParentHeaderName, TraceParent.BuildTraceparent(span.OutgoingDistributedTracingData));
}
if (transaction.IsSampled)
{
span.Context.Http = new Http {
Url = requestUrl.ToString(), Method = RequestGetMethod(request)
}
}
;
}