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