func()

in tools/go-agent/instrument/agentcore/instrument.go [155:203]

• 45 lines of code
• 6 McCabe index (conditional complexity)

func (i *Instrument) writeTracerInitLink(dir string) (string, error) {
	return tools.WriteFile(dir, "tracer_init.go", html.UnescapeString(tools.ExecuteTemplate(`package core

import (
	"github.com/apache/skywalking-go/agent/reporter"
	"github.com/apache/skywalking-go/agent/core/operator"
	"fmt"
	"os"
	"strconv"
	_ "unsafe"
)

//go:linkname {{.GetGlobalLoggerLinkMethod}} {{.GetGlobalLoggerLinkMethod}}
var {{.GetGlobalLoggerLinkMethod}} func() interface{}

func (t *Tracer) InitTracer(extend map[string]interface{}) {
	rep, err := reporter.{{.GRPCReporterFuncName}}(t.Log)
	if err != nil {
		t.Log.Errorf("cannot initialize the reporter: %v", err)
		return
	}
	entity := NewEntity({{.Config.Agent.ServiceName.ToGoStringValue}}, {{.Config.Agent.InstanceEnvName.ToGoStringValue}})
	samp := NewDynamicSampler({{.Config.Agent.Sampler.ToGoFloatValue "loading the agent sampler error"}}, t)
	meterCollectInterval := {{.Config.Agent.Meter.CollectInterval.ToGoIntValue "loading the agent meter interval error"}}
	var logger operator.LogOperator
	if {{.GetGlobalLoggerLinkMethod}} != nil {
		if l, ok := {{.GetGlobalLoggerLinkMethod}}().(operator.LogOperator); ok &&  l != nil {
			logger = l
		}
	}
	correlation := &CorrelationConfig{
		MaxKeyCount : {{.Config.Agent.Correlation.MaxKeyCount.ToGoIntValue "loading the agent correlation maxKeyCount error"}},
		MaxValueSize : {{.Config.Agent.Correlation.MaxValueSize.ToGoIntValue "loading the agent correlation maxValueSize error"}},
	}
	ignoreSuffixStr := {{.Config.Agent.IgnoreSuffix.ToGoStringValue}}
	ignorePath := {{.Config.Agent.TraceIgnorePath.ToGoStringValue}}
	if err := t.Init(entity, rep, samp, logger, meterCollectInterval, correlation, ignoreSuffixStr, ignorePath); err != nil {
		t.Log.Errorf("cannot initialize the SkyWalking Tracer: %v", err)
	}
}`, struct {
		GRPCReporterFuncName      string
		GetGlobalLoggerLinkMethod string
		Config                    *config.Config
	}{
		GRPCReporterFuncName:      consts.GRPCInitFuncName,
		GetGlobalLoggerLinkMethod: consts.GlobalLoggerGetMethodName,
		Config:                    config.GetConfig(),
	})))
}