Use original prometheusName() implementation

Signed-off-by: Federico Torres <[email protected]>

Author: fedetorres93

prometheus-metrics-model/src/main/java/io/prometheus/metrics/model/snapshots/Labels.java

@@ -75,7 +75,7 @@ public static Labels of(String... keyValuePairs) {
     static String[] makePrometheusNames(String[] names) {
         String[] prometheusNames = names;
         for (int i=0; i<names.length; i++) {
-            if (names[i].contains(".")) {
+            if (names[i].contains(".") && PrometheusNaming.nameValidationScheme == ValidationScheme.LEGACY_VALIDATION) {
                 if (prometheusNames == names) {
                     prometheusNames = Arrays.copyOf(names, names.length);
                 }

prometheus-metrics-model/src/main/java/io/prometheus/metrics/model/snapshots/MetricMetadata.java

@@ -61,7 +61,7 @@ public MetricMetadata(String name, String help, Unit unit) {
         this.help = help;
         this.unit = unit;
         validate();
-        this.prometheusName = name.contains(".") ? PrometheusNaming.prometheusName(name) : name;
+        this.prometheusName = name.contains(".") && PrometheusNaming.nameValidationScheme == ValidationScheme.LEGACY_VALIDATION ? PrometheusNaming.prometheusName(name) : name;
     }
 
     /**

prometheus-metrics-model/src/main/java/io/prometheus/metrics/model/snapshots/PrometheusNaming.java

@@ -180,14 +180,7 @@ public static boolean isValidLegacyLabelName(String name) {
      * @return the name with dots replaced by underscores.
      */
     public static String prometheusName(String name) {
-        switch (nameValidationScheme) {
-            case LEGACY_VALIDATION:
-                return name.replace(".", "_");
-            case UTF_8_VALIDATION:
-                return name;
-            default:
-                throw new RuntimeException("Invalid name validation scheme requested: " + nameValidationScheme);
-        }
+        return name.replace(".", "_");
     }
 
     /**