69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
|
package ex
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
"log"
|
||
|
|
|
||
|
|
"github.com/Xe/ln"
|
||
|
|
"golang.org/x/net/trace"
|
||
|
|
)
|
||
|
|
|
||
|
|
type goEventLogger struct {
|
||
|
|
ev trace.EventLog
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewGoEventLogger will log ln information to a given trace.EventLog instance.
|
||
|
|
func NewGoEventLogger(ev trace.EventLog) ln.Filter {
|
||
|
|
return &goEventLogger{ev: ev}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (gel *goEventLogger) Apply(ctx context.Context, e ln.Event) bool {
|
||
|
|
data, err := ln.DefaultFormatter.Format(ctx, e)
|
||
|
|
if err != nil {
|
||
|
|
log.Printf("wtf: error in log formatting: %v", err)
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
|
||
|
|
if everr := e.Data["err"]; everr != nil {
|
||
|
|
gel.ev.Errorf("%s", string(data))
|
||
|
|
return true
|
||
|
|
}
|
||
|
|
|
||
|
|
gel.ev.Printf("%s", string(data))
|
||
|
|
return true
|
||
|
|
}
|
||
|
|
|
||
|
|
func (gel *goEventLogger) Close() { gel.ev.Finish() }
|
||
|
|
func (gel *goEventLogger) Run() {}
|
||
|
|
|
||
|
|
type sst string
|
||
|
|
|
||
|
|
func (s sst) String() string { return string(s) }
|
||
|
|
|
||
|
|
func goTraceLogger(ctx context.Context, e ln.Event) bool {
|
||
|
|
sp, ok := trace.FromContext(ctx)
|
||
|
|
if !ok {
|
||
|
|
return true // no trace in context
|
||
|
|
}
|
||
|
|
|
||
|
|
data, err := ln.DefaultFormatter.Format(ctx, e)
|
||
|
|
if err != nil {
|
||
|
|
log.Printf("wtf: error in log formatting: %v", err)
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
|
||
|
|
if everr := e.Data["err"]; everr != nil {
|
||
|
|
sp.SetError()
|
||
|
|
}
|
||
|
|
|
||
|
|
sp.LazyLog(sst(string(data)), false)
|
||
|
|
|
||
|
|
return true
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewGoTraceLogger will log ln information to a golang.org/x/net/trace.Trace
|
||
|
|
// if it is present in the context of ln calls.
|
||
|
|
func NewGoTraceLogger() ln.Filter {
|
||
|
|
return ln.FilterFunc(goTraceLogger)
|
||
|
|
}
|