protected override string CreateBody(ThreadSample threadSample)
{
var pprof = new Pprof();
var sampleBuilder = new SampleBuilder();
pprof.AddLabel(sampleBuilder, "source.event.time", threadSample.Timestamp.Milliseconds);
if (threadSample.SpanId != 0 || threadSample.TraceIdHigh != 0 || threadSample.TraceIdLow != 0)
{
pprof.AddLabel(sampleBuilder, "span_id", threadSample.SpanId);
pprof.AddLabel(sampleBuilder, "trace_id", TraceIdHelper.ToString(threadSample.TraceIdHigh, threadSample.TraceIdLow));
}
foreach (var methodName in threadSample.Frames)
{
sampleBuilder.AddLocationId(pprof.GetLocationId(methodName));
}
pprof.AddLabel(sampleBuilder, "thread.id", threadSample.ManagedId);
pprof.AddLabel(sampleBuilder, "thread.name", threadSample.ThreadName);
pprof.AddLabel(sampleBuilder, "thread.os.id", threadSample.NativeId);
pprof.Profile.Samples.Add(sampleBuilder.Build());
return(Serialize(pprof.Profile));
}
public TraceInfo(TraceInfo parentTraceInfo)
{
ParentTraceInfo = parentTraceInfo;
TraceId = parentTraceInfo?.TraceId;
SpanId = TraceIdHelper.GenerateHexEncodedInt64Id();
IsSampled = parentTraceInfo?.IsSampled ?? false;
IsJoinedSpan = false;
Domain = parentTraceInfo?.Domain;
LocalIP = parentTraceInfo?.LocalIP;
}
private TraceInfo ReadTraceInfo(HttpContext context)
{
string headerTraceId = context.Request.Headers[TraceInfo.TraceIdHeaderName];
string headerSpanId = context.Request.Headers[TraceInfo.SpanIdHeaderName];
string headerParentSpanId = context.Request.Headers[TraceInfo.ParentSpanIdHeaderName];
string headerSampled = context.Request.Headers[TraceInfo.SampledHeaderName];
var requestPath = context.Request.Path.ToString();
var traceId = headerTraceId.IsParsableTo128Or64Bit() ? headerTraceId : TraceIdHelper.GenerateNewTraceId(_zipkinConfig.Create128BitTraceId);
var spanId = headerSpanId.IsParsableToLong() ? headerSpanId : TraceIdHelper.GenerateHexEncodedInt64Id();
var parentSpanId = headerParentSpanId.IsParsableToLong() ? headerParentSpanId : string.Empty;
var isSampled = _zipkinConfig.ShouldBeSampled(headerSampled, requestPath);
var domain = _zipkinConfig.Domain(context.Request);
var isJoinedSpan = spanId.Equals(headerSpanId);
var traceInfo = new TraceInfo(traceId, spanId, isSampled, isJoinedSpan, domain, context.Connection.LocalIpAddress, parentSpanId);
context.Items[TraceInfo.TraceInfoKey] = traceInfo;
_traceInfoAccessor.TraceInfo = traceInfo;
return(traceInfo);
}
