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package logx
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import (
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"context"
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"fmt"
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"io"
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"time"
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"go.opentelemetry.io/otel/trace"
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"github.com/tal-tech/go-zero/core/timex"
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"github.com/tal-tech/go-zero/core/trace/tracespec"
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)
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type traceLogger struct {
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logEntry
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Trace string `json:"trace,omitempty"`
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Span string `json:"span,omitempty"`
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ctx context.Context
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}
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func (l *traceLogger) Error(v ...interface{}) {
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if shallLog(ErrorLevel) {
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l.write(errorLog, levelError, formatWithCaller(fmt.Sprint(v...), durationCallerDepth))
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}
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}
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func (l *traceLogger) Errorf(format string, v ...interface{}) {
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if shallLog(ErrorLevel) {
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l.write(errorLog, levelError, formatWithCaller(fmt.Sprintf(format, v...), durationCallerDepth))
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}
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}
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func (l *traceLogger) Errorv(v interface{}) {
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if shallLog(ErrorLevel) {
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l.write(errorLog, levelError, v)
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}
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}
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func (l *traceLogger) Info(v ...interface{}) {
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if shallLog(InfoLevel) {
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l.write(infoLog, levelInfo, fmt.Sprint(v...))
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}
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}
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func (l *traceLogger) Infof(format string, v ...interface{}) {
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if shallLog(InfoLevel) {
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l.write(infoLog, levelInfo, fmt.Sprintf(format, v...))
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}
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}
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func (l *traceLogger) Infov(v interface{}) {
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if shallLog(InfoLevel) {
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l.write(infoLog, levelInfo, v)
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}
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}
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func (l *traceLogger) Slow(v ...interface{}) {
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if shallLog(ErrorLevel) {
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l.write(slowLog, levelSlow, fmt.Sprint(v...))
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}
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}
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func (l *traceLogger) Slowf(format string, v ...interface{}) {
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if shallLog(ErrorLevel) {
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l.write(slowLog, levelSlow, fmt.Sprintf(format, v...))
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}
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}
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func (l *traceLogger) Slowv(v interface{}) {
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if shallLog(ErrorLevel) {
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l.write(slowLog, levelSlow, v)
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}
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}
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func (l *traceLogger) WithDuration(duration time.Duration) Logger {
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l.Duration = timex.ReprOfDuration(duration)
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return l
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}
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func (l *traceLogger) write(writer io.Writer, level string, val interface{}) {
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l.Timestamp = getTimestamp()
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l.Level = level
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l.Content = val
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l.Trace = traceIdFromContext(l.ctx)
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l.Span = spanIdFromContext(l.ctx)
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outputJson(writer, l)
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}
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// WithContext sets ctx to log, for keeping tracing information.
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func WithContext(ctx context.Context) Logger {
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return &traceLogger{
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ctx: ctx,
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}
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}
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func spanIdFromContext(ctx context.Context) string {
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span := trace.SpanFromContext(ctx)
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if span.IsRecording() {
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return span.SpanContext().SpanID().String()
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}
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t, ok := ctx.Value(tracespec.TracingKey).(tracespec.Trace)
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if !ok {
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return ""
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}
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return t.SpanId()
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}
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func traceIdFromContext(ctx context.Context) string {
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span := trace.SpanFromContext(ctx)
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if span.IsRecording() {
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return span.SpanContext().SpanID().String()
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}
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t, ok := ctx.Value(tracespec.TracingKey).(tracespec.Trace)
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if !ok {
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return ""
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}
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return t.TraceId()
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}
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