internal TelemetryTracker(
ILambdaContext lambdaContext,
string operationName = null,
IEnumerable <KeyValuePair <string, string> > tags = null,
IHeadersCollection headersCollection = null)
: this()
{
if (!TelemetryConfiguration.TracingEnabled && !TelemetryConfiguration.MetricsEnabled)
{
return;
}
var coldStart = s_coldStart;
if (coldStart)
{
s_coldStart = false;
}
var commonTags = lambdaContext.ExtractCommonTags();
if (TelemetryConfiguration.MetricsEnabled)
{
_metricWrapper = new MetricWrapper(commonTags);
}
if (TelemetryConfiguration.TracingEnabled)
{
ISpanContext parentContext = null;
if (TelemetryConfiguration.ContextPropagationEnabled && headersCollection != null)
{
parentContext = B3SpanContextPropagator.Instance.Extract(headersCollection);
}
operationName = operationName ?? lambdaContext.FunctionName;
_sfxScope = s_sfxTracer.StartActive(operationName, parentContext);
var sfxSpan = _sfxScope.Span;
sfxSpan.SetTag("span.kind", "server");
sfxSpan.SetTag("component", "dotnet-lambda-wrapper");
sfxSpan.SetTag("aws_request_id", lambdaContext.AwsRequestId);
foreach (var kvp in commonTags)
{
sfxSpan.SetTag(kvp.Key, kvp.Value);
}
if (coldStart)
{
sfxSpan.SetTag("cold_start", "true");
}
if (tags != null)
{
foreach (var kvp in tags)
{
sfxSpan.SetTag(kvp.Key, kvp.Value);
}
}
}
}
internal TelemetryTracker(
ILambdaContext lambdaContext,
string operationName = null,
IEnumerable <KeyValuePair <string, string> > tags = null,
IDictionary <string, string> headers = null)
: this()
{
if (!TelemetryConfiguration.TracingEnabled && !TelemetryConfiguration.MetricsEnabled)
{
return;
}
var coldStart = s_coldStart;
if (coldStart)
{
s_coldStart = false;
}
var commonTags = lambdaContext.ExtractCommonTags();
if (TelemetryConfiguration.MetricsEnabled)
{
_metricWrapper = new MetricWrapper(commonTags);
}
if (TelemetryConfiguration.TracingEnabled)
{
OpenTracing.ISpanContext parentContext = null;
if (TelemetryConfiguration.ContextPropagationEnabled && headers != null)
{
var tracer = GlobalTracer.Instance;
parentContext = tracer.Extract(BuiltinFormats.HttpHeaders, new TextMapExtractAdapter(headers));
}
operationName = operationName ?? lambdaContext.FunctionName;
_otScope = s_otTracer.BuildSpan(operationName)
.AsChildOf(parentContext)
.WithTag("span.kind", "server")
.WithTag("component", "dotnet-lambda-wrapper")
.WithTag("aws_request_id", lambdaContext.AwsRequestId)
.StartActive();
var otSpan = _otScope.Span;
foreach (var kvp in commonTags)
{
otSpan.SetTag(kvp.Key, kvp.Value);
}
if (coldStart)
{
otSpan.SetTag("cold_start", "true");
}
if (tags != null)
{
foreach (var kvp in tags)
{
otSpan.SetTag(kvp.Key, kvp.Value);
}
}
}
}
protected internal static void setWrapper(MetricWrapper wrapper)
{
singleton = wrapper;
}