From 360eab94e33e7cc600d3e9f60c414ff132aec80c Mon Sep 17 00:00:00 2001
From: Sheridan C Rawlins <scr@yahooinc.com>
Date: Thu, 12 Dec 2024 23:18:01 -0800
Subject: [PATCH] Ditch use of slog for now (until #4103).

---
 metrics/config/metrics.go        | 4 ++--
 metrics/opentelemetry/engine.go  | 6 +++---
 metrics/opentelemetry/metrics.go | 8 ++++----
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/metrics/config/metrics.go b/metrics/config/metrics.go
index 3312f6dbd6..3d823c8446 100644
--- a/metrics/config/metrics.go
+++ b/metrics/config/metrics.go
@@ -1,9 +1,9 @@
 package config
 
 import (
-	"log/slog"
 	"time"
 
+	"github.com/golang/glog"
 	"github.com/prebid/prebid-server/v3/config"
 	"github.com/prebid/prebid-server/v3/metrics"
 	"github.com/prebid/prebid-server/v3/metrics/opentelemetry"
@@ -48,7 +48,7 @@ func NewMetricsEngine(cfg *config.Configuration, adapterList []openrtb_ext.Bidde
 	if cfg.Metrics.Otel.Enabled {
 		otelEngine, err := opentelemetry.NewEngine(cfg.Metrics.Otel.Prefix, &cfg.Metrics.Disabled)
 		if err != nil {
-			slog.Error("error creating otel engine", "err", err.Error())
+			glog.Error("error creating otel engine: %v", err)
 		}
 		engineList = append(engineList, otelEngine)
 	}
diff --git a/metrics/opentelemetry/engine.go b/metrics/opentelemetry/engine.go
index 9cbc9fc2dc..06228a6307 100644
--- a/metrics/opentelemetry/engine.go
+++ b/metrics/opentelemetry/engine.go
@@ -2,10 +2,10 @@ package opentelemetry
 
 import (
 	"context"
-	"log/slog"
 	"strings"
 	"time"
 
+	"github.com/golang/glog"
 	"github.com/prebid/prebid-server/v3/config"
 	"github.com/prebid/prebid-server/v3/metrics"
 	"github.com/prebid/prebid-server/v3/openrtb_ext"
@@ -401,7 +401,7 @@ func (o *PbsMetricsEngine) RecordStoredDataFetchTime(labels metrics.StoredDataLa
 	case metrics.ResponseDataType:
 		histogramPtr = &o.StoredResponsesFetchTime
 	default:
-		slog.DebugContext(ctx, "unknown data type", "dataType", labels.DataType)
+		glog.Error("unknown data type: %v", labels.DataType)
 		return
 	}
 	// Record the chosen histogram
@@ -427,7 +427,7 @@ func (o *PbsMetricsEngine) RecordStoredDataError(labels metrics.StoredDataLabels
 	case metrics.ResponseDataType:
 		counterPtr = &o.StoredResponsesErrors
 	default:
-		slog.DebugContext(ctx, "unknown data type", "dataType", labels.DataType)
+		glog.Error(ctx, "unknown data type: %v", labels.DataType)
 		return
 	}
 	// Record the chosen histogram
diff --git a/metrics/opentelemetry/metrics.go b/metrics/opentelemetry/metrics.go
index 3f4b8b29fe..7b3d0648c0 100644
--- a/metrics/opentelemetry/metrics.go
+++ b/metrics/opentelemetry/metrics.go
@@ -3,12 +3,12 @@ package opentelemetry
 import (
 	"errors"
 	"fmt"
-	"log/slog"
 	"reflect"
 	"strconv"
 	"strings"
 
 	"github.com/gobeam/stringy"
+	"github.com/golang/glog"
 	"go.opentelemetry.io/otel/metric"
 )
 
@@ -85,7 +85,7 @@ func HistogramOptions(elem Elem) []metric.HistogramOption {
 		var err error
 		for i, s := range floatStrings {
 			if floats[i], err = strconv.ParseFloat(s, 64); err != nil {
-				slog.Error("failed to parse bucket boundary", "boundary", s, "err", err.Error())
+				glog.Error("failed to parse bucket boundary: %s: %v", s, err)
 				return nil
 			}
 		}
@@ -113,7 +113,7 @@ func InitMetrics(meter metric.Meter, m any, prefix string) error {
 // possibly with altered Name or Tags.
 func InitMetricElem(meter metric.Meter, elem Elem, prefix string) error {
 	if elem.Tag.Get("metric") == "-" {
-		slog.Debug("skipping metric", "name", elem.Name)
+		glog.Info("skipping metric: %s", elem.Name)
 		return nil
 	}
 	var opts []metric.InstrumentOption
@@ -142,7 +142,7 @@ func InitMetricElem(meter metric.Meter, elem Elem, prefix string) error {
 	case "metric.Float64Histogram":
 		m, err = CreateHistogramMetric(metricName, meter.Float64Histogram, HistogramOptions(elem), opts...)
 	default:
-		slog.Warn("unknown metric type; skipping", "type", elem.Value.Type().String())
+		glog.Error("unknown metric type; skipping: %s", elem.Value.Type().String())
 		return nil
 	}
 	if err != nil {