1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Metrics/Exemplar/FilteredReservoir.php b/vendor/open-telemetry/sdk/Metrics/Exemplar/FilteredReservoir.php
new file mode 100644
index 000000000..0e4f24357
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/Exemplar/FilteredReservoir.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\Exemplar;
+
+use OpenTelemetry\Context\ContextInterface;
+use OpenTelemetry\SDK\Common\Attribute\AttributesInterface;
+
+/**
+ * The exemplar spec is not yet stable, and can change at any time.
+ * @see https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/sdk.md#exemplar
+ */
+final class FilteredReservoir implements ExemplarReservoirInterface
+{
+    private ExemplarReservoirInterface $reservoir;
+    private ExemplarFilterInterface $filter;
+
+    public function __construct(ExemplarReservoirInterface $reservoir, ExemplarFilterInterface $filter)
+    {
+        $this->reservoir = $reservoir;
+        $this->filter = $filter;
+    }
+
+    public function offer($index, $value, AttributesInterface $attributes, ContextInterface $context, int $timestamp): void
+    {
+        if ($this->filter->accepts($value, $attributes, $context, $timestamp)) {
+            $this->reservoir->offer($index, $value, $attributes, $context, $timestamp);
+        }
+    }
+
+    public function collect(array $dataPointAttributes): array
+    {
+        return $this->reservoir->collect($dataPointAttributes);
+    }
+}