1 files changed, 40 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Metrics/Exemplar/HistogramBucketReservoir.php b/vendor/open-telemetry/sdk/Metrics/Exemplar/HistogramBucketReservoir.php
new file mode 100644
index 000000000..b56a1b2be
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/Exemplar/HistogramBucketReservoir.php
@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\Exemplar;
+
+use function count;
+use OpenTelemetry\Context\ContextInterface;
+use OpenTelemetry\SDK\Common\Attribute\AttributesInterface;
+
+final class HistogramBucketReservoir implements ExemplarReservoirInterface
+{
+    private BucketStorage $storage;
+    /**
+     * @var list<float|int>
+     */
+    private array $boundaries;
+
+    /**
+     * @param list<float|int> $boundaries
+     */
+    public function __construct(array $boundaries)
+    {
+        $this->storage = new BucketStorage(count($boundaries) + 1);
+        $this->boundaries = $boundaries;
+    }
+
+    public function offer($index, $value, AttributesInterface $attributes, ContextInterface $context, int $timestamp): void
+    {
+        $boundariesCount = count($this->boundaries);
+        for ($i = 0; $i < $boundariesCount && $this->boundaries[$i] < $value; $i++) {
+        }
+        $this->storage->store($i, $index, $value, $attributes, $context, $timestamp);
+    }
+
+    public function collect(array $dataPointAttributes): array
+    {
+        return $this->storage->collect($dataPointAttributes);
+    }
+}