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37 lines
1.0 KiB
PHP
37 lines
1.0 KiB
PHP
<?php
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declare(strict_types=1);
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namespace OpenTelemetry\Contrib\Otlp;
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use OpenTelemetry\SDK\Common\Configuration\KnownValues;
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use UnexpectedValueException;
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class Protocols
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{
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public const GRPC = KnownValues::VALUE_GRPC;
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public const HTTP_PROTOBUF = KnownValues::VALUE_HTTP_PROTOBUF;
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public const HTTP_JSON = KnownValues::VALUE_HTTP_JSON;
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public const HTTP_NDJSON = KnownValues::VALUE_HTTP_NDJSON;
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private const PROTOCOLS = [
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self::GRPC => ContentTypes::PROTOBUF,
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self::HTTP_PROTOBUF => ContentTypes::PROTOBUF,
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self::HTTP_JSON => ContentTypes::JSON,
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self::HTTP_NDJSON => ContentTypes::NDJSON,
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];
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public static function validate(string $protocol): void
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{
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if (!array_key_exists($protocol, self::PROTOCOLS)) {
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throw new UnexpectedValueException('Unknown protocol: ' . $protocol);
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}
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}
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public static function contentType(string $protocol): string
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{
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self::validate($protocol);
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return self::PROTOCOLS[$protocol];
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}
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}
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