1 files changed, 91 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Metrics/Aggregation/SumAggregation.php b/vendor/open-telemetry/sdk/Metrics/Aggregation/SumAggregation.php
new file mode 100644
index 000000000..dc317ce73
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/Aggregation/SumAggregation.php
@@ -0,0 +1,91 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\Aggregation;
+
+use OpenTelemetry\Context\ContextInterface;
+use OpenTelemetry\SDK\Common\Attribute\AttributesInterface;
+use OpenTelemetry\SDK\Metrics\AggregationInterface;
+use OpenTelemetry\SDK\Metrics\Data;
+
+/**
+ * @implements AggregationInterface<SumSummary>
+ */
+final class SumAggregation implements AggregationInterface
+{
+    private bool $monotonic;
+
+    public function __construct(bool $monotonic = false)
+    {
+        $this->monotonic = $monotonic;
+    }
+
+    public function initialize(): SumSummary
+    {
+        return new SumSummary(0);
+    }
+
+    /**
+     * @param SumSummary $summary
+     */
+    public function record($summary, $value, AttributesInterface $attributes, ContextInterface $context, int $timestamp): void
+    {
+        $summary->value += $value;
+    }
+
+    /**
+     * @param SumSummary $left
+     * @param SumSummary $right
+     */
+    public function merge($left, $right): SumSummary
+    {
+        $sum = $left->value + $right->value;
+
+        return new SumSummary(
+            $sum,
+        );
+    }
+
+    /**
+     * @param SumSummary $left
+     * @param SumSummary $right
+     */
+    public function diff($left, $right): SumSummary
+    {
+        $sum = -$left->value + $right->value;
+
+        return new SumSummary(
+            $sum,
+        );
+    }
+
+    /**
+     * @param array<SumSummary> $summaries
+     */
+    public function toData(
+        array $attributes,
+        array $summaries,
+        array $exemplars,
+        int $startTimestamp,
+        int $timestamp,
+        $temporality
+    ): Data\Sum {
+        $dataPoints = [];
+        foreach ($attributes as $key => $dataPointAttributes) {
+            $dataPoints[] = new Data\NumberDataPoint(
+                $summaries[$key]->value,
+                $dataPointAttributes,
+                $startTimestamp,
+                $timestamp,
+                $exemplars[$key] ?? [],
+            );
+        }
+
+        return new Data\Sum(
+            $dataPoints,
+            $temporality,
+            $this->monotonic,
+        );
+    }
+}