feat: add metric name to MetricsRegistrationException (#163)

Signed-off-by: Simon Podlipsky <[email protected]>
Co-authored-by: Lukas Kämmerling <[email protected]>

Author: simPod

src/Prometheus/CollectorRegistry.php

@@ -99,7 +99,7 @@ public function registerGauge(string $namespace, string $name, string $help, arr
     {
         $metricIdentifier = self::metricIdentifier($namespace, $name);
         if (isset($this->gauges[$metricIdentifier])) {
-            throw new MetricsRegistrationException("Metric already registered");
+            throw new MetricsRegistrationException("Metric ` . $metricIdentifier . ` already registered");
         }
         $this->gauges[$metricIdentifier] = new Gauge(
             $this->storageAdapter,
@@ -159,7 +159,7 @@ public function registerCounter(string $namespace, string $name, string $help, a
     {
         $metricIdentifier = self::metricIdentifier($namespace, $name);
         if (isset($this->counters[$metricIdentifier])) {
-            throw new MetricsRegistrationException("Metric already registered");
+            throw new MetricsRegistrationException("Metric ` . $metricIdentifier . ` already registered");
         }
         $this->counters[$metricIdentifier] = new Counter(
             $this->storageAdapter,
@@ -225,7 +225,7 @@ public function registerHistogram(
     ): Histogram {
         $metricIdentifier = self::metricIdentifier($namespace, $name);
         if (isset($this->histograms[$metricIdentifier])) {
-            throw new MetricsRegistrationException("Metric already registered");
+            throw new MetricsRegistrationException("Metric ` . $metricIdentifier . ` already registered");
         }
         $this->histograms[$metricIdentifier] = new Histogram(
             $this->storageAdapter,
@@ -301,7 +301,7 @@ public function registerSummary(
     ): Summary {
         $metricIdentifier = self::metricIdentifier($namespace, $name);
         if (isset($this->summaries[$metricIdentifier])) {
-            throw new MetricsRegistrationException("Metric already registered");
+            throw new MetricsRegistrationException("Metric ` . $metricIdentifier . ` already registered");
         }
         $this->summaries[$metricIdentifier] = new Summary(
             $this->storageAdapter,