71 lines
2.2 KiB
Go
71 lines
2.2 KiB
Go
|
package middleware
|
||
|
|
|
||
|
|
import (
|
||
|
|
"encoding/json"
|
||
|
|
"strconv"
|
||
|
|
|
||
|
|
"finclip-app-manager/infrastructure/config"
|
||
|
|
"github.com/gin-gonic/gin"
|
||
|
|
"github.com/openzipkin/zipkin-go"
|
||
|
|
"github.com/openzipkin/zipkin-go/model"
|
||
|
|
zkHttp "github.com/openzipkin/zipkin-go/reporter/http"
|
||
|
|
)
|
||
|
|
|
||
|
|
var gTracer *zipkin.Tracer
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
if config.GetConfig().ZipKinUrl != "" && config.GetConfig().ZipKinSToS {
|
||
|
|
reporter := zkHttp.NewReporter(config.GetConfig().ZipKinUrl)
|
||
|
|
endpoint, err := zipkin.NewEndpoint(config.GetConfig().ServerName, "")
|
||
|
|
if err != nil {
|
||
|
|
log.Errorf("zipkin unable to create local endpoint: %v\n", err)
|
||
|
|
return
|
||
|
|
}
|
||
|
|
nativeTracer, err := zipkin.NewTracer(reporter, zipkin.WithLocalEndpoint(endpoint))
|
||
|
|
if err != nil {
|
||
|
|
log.Errorf("zipkin unable to create tracer: %v\n", err)
|
||
|
|
return
|
||
|
|
}
|
||
|
|
gTracer = nativeTracer
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func AddZipkinTraceSpan(c *gin.Context) {
|
||
|
|
if gTracer != nil {
|
||
|
|
spanContextStr := c.Request.Header.Get("Zipkin-Span-Context")
|
||
|
|
var span zipkin.Span
|
||
|
|
|
||
|
|
if spanContextStr != "" {
|
||
|
|
var spanContext model.SpanContext
|
||
|
|
json.Unmarshal([]byte(spanContextStr), &spanContext)
|
||
|
|
span = gTracer.StartSpan(c.Request.URL.Path, zipkin.Parent(spanContext))
|
||
|
|
} else {
|
||
|
|
kongTraceId := c.Request.Header.Get("X-B3-Traceid")
|
||
|
|
kongSpanId := c.Request.Header.Get("X-B3-Spanid") //X-B3-Spanid X-B3-Parentspanid X-B3-Sampled
|
||
|
|
if kongTraceId != "" && kongSpanId != "" {
|
||
|
|
var kongParentSpanContext model.SpanContext
|
||
|
|
|
||
|
|
spandIdInt, _ := strconv.ParseUint(kongSpanId, 16, 64)
|
||
|
|
kongParentSpanContext.ID = model.ID(spandIdInt)
|
||
|
|
kongTraceIdIntHigh, _ := strconv.ParseUint(kongTraceId[0:16], 16, 64)
|
||
|
|
kongTraceIdIntLow, _ := strconv.ParseUint(kongTraceId[16:], 16, 64)
|
||
|
|
kongParentSpanContext.TraceID.High = kongTraceIdIntHigh
|
||
|
|
kongParentSpanContext.TraceID.Low = kongTraceIdIntLow
|
||
|
|
span = gTracer.StartSpan(c.Request.URL.Path, zipkin.Parent(kongParentSpanContext))
|
||
|
|
} else {
|
||
|
|
span = gTracer.StartSpan(c.Request.URL.Path)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if config.GetConfig().ZipKinSToS { //需要调用其他服务
|
||
|
|
spanBytes, _ := json.Marshal(span.Context())
|
||
|
|
spanId := span.Context().ID.String()
|
||
|
|
c.Set("zipkin_span_id", spanId)
|
||
|
|
c.Set("zipkin_trace_span_id_"+spanId, string(spanBytes))
|
||
|
|
}
|
||
|
|
defer span.Finish()
|
||
|
|
}
|
||
|
|
|
||
|
|
c.Next()
|
||
|
|
}
|