Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/parsers/prometheus/common.go

@@ -0,0 +1,37 @@
+package prometheus
+
+import (
+	dto "github.com/prometheus/client_model/go"
+
+	"github.com/influxdata/telegraf"
+)
+
+func mapValueType(mt dto.MetricType) telegraf.ValueType {
+	switch mt {
+	case dto.MetricType_COUNTER:
+		return telegraf.Counter
+	case dto.MetricType_GAUGE:
+		return telegraf.Gauge
+	case dto.MetricType_SUMMARY:
+		return telegraf.Summary
+	case dto.MetricType_HISTOGRAM:
+		return telegraf.Histogram
+	default:
+		return telegraf.Untyped
+	}
+}
+
+func getTagsFromLabels(m *dto.Metric, defaultTags map[string]string) map[string]string {
+	result := make(map[string]string, len(defaultTags)+len(m.Label))
+	for key, value := range defaultTags {
+		result[key] = value
+	}
+
+	for _, label := range m.Label {
+		if v := label.GetValue(); v != "" {
+			result[label.GetName()] = v
+		}
+	}
+
+	return result
+}