1 files changed, 77 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Metrics/View/ViewTemplate.php b/vendor/open-telemetry/sdk/Metrics/View/ViewTemplate.php
new file mode 100644
index 000000000..302ed83ae
--- /dev/null
+++ b/vendor/open-telemetry/sdk/Metrics/View/ViewTemplate.php
@@ -0,0 +1,77 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\SDK\Metrics\View;
+
+use OpenTelemetry\SDK\Metrics\AggregationInterface;
+use OpenTelemetry\SDK\Metrics\Instrument;
+use OpenTelemetry\SDK\Metrics\ViewProjection;
+
+final class ViewTemplate
+{
+    private ?string $name = null;
+    private ?string $description = null;
+    /**
+     * @var list<string>
+     */
+    private ?array $attributeKeys = null;
+    private ?AggregationInterface $aggregation = null;
+
+    private function __construct()
+    {
+    }
+
+    public static function create(): self
+    {
+        static $instance;
+
+        return $instance ??= new self();
+    }
+
+    public function withName(string $name): self
+    {
+        $self = clone $this;
+        $self->name = $name;
+
+        return $self;
+    }
+
+    public function withDescription(string $description): self
+    {
+        $self = clone $this;
+        $self->description = $description;
+
+        return $self;
+    }
+
+    /**
+     * @param list<string> $attributeKeys
+     */
+    public function withAttributeKeys(array $attributeKeys): self
+    {
+        $self = clone $this;
+        $self->attributeKeys = $attributeKeys;
+
+        return $self;
+    }
+
+    public function withAggregation(?AggregationInterface $aggregation): self
+    {
+        $self = clone $this;
+        $self->aggregation = $aggregation;
+
+        return $self;
+    }
+
+    public function project(Instrument $instrument): ViewProjection
+    {
+        return new ViewProjection(
+            $this->name ?? $instrument->name,
+            $instrument->unit,
+            $this->description ?? $instrument->description,
+            $this->attributeKeys,
+            $this->aggregation,
+        );
+    }
+}