1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/open-telemetry/exporter-otlp/Protocols.php b/vendor/open-telemetry/exporter-otlp/Protocols.php
new file mode 100644
index 000000000..96b04d8bf
--- /dev/null
+++ b/vendor/open-telemetry/exporter-otlp/Protocols.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenTelemetry\Contrib\Otlp;
+
+use OpenTelemetry\SDK\Common\Configuration\KnownValues;
+use UnexpectedValueException;
+
+class Protocols
+{
+    public const GRPC = KnownValues::VALUE_GRPC;
+    public const HTTP_PROTOBUF = KnownValues::VALUE_HTTP_PROTOBUF;
+    public const HTTP_JSON = KnownValues::VALUE_HTTP_JSON;
+    public const HTTP_NDJSON = KnownValues::VALUE_HTTP_NDJSON;
+    private const PROTOCOLS = [
+        self::GRPC => ContentTypes::PROTOBUF,
+        self::HTTP_PROTOBUF => ContentTypes::PROTOBUF,
+        self::HTTP_JSON => ContentTypes::JSON,
+        self::HTTP_NDJSON => ContentTypes::NDJSON,
+    ];
+
+    public static function validate(string $protocol): void
+    {
+        if (!array_key_exists($protocol, self::PROTOCOLS)) {
+            throw new UnexpectedValueException('Unknown protocol: ' . $protocol);
+        }
+    }
+
+    public static function contentType(string $protocol): string
+    {
+        self::validate($protocol);
+
+        return self::PROTOCOLS[$protocol];
+    }
+}