44 lines
967 B
PHP
44 lines
967 B
PHP
<?php
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namespace Wikimedia\Telemetry;
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/**
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* Utility class for serializing data in OTLP JSON format.
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*
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* @since 1.43
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* @internal
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*/
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class OtlpSerializer {
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/**
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* Map of PHP types to their corresponding type name used in the OTLP JSON format.
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*/
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private const TYPE_MAP = [
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'string' => 'stringValue',
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'integer' => 'intValue',
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'boolean' => 'boolValue',
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'double' => 'doubleValue',
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'array' => 'arrayValue'
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];
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/**
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* Serialize an associative array into the format expected by the OTLP JSON format.
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* @param array $keyValuePairs The associative array to serialize
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* @return array
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*/
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public static function serializeKeyValuePairs( array $keyValuePairs ): array {
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$serialized = [];
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foreach ( $keyValuePairs as $key => $value ) {
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$type = gettype( $value );
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if ( isset( self::TYPE_MAP[$type] ) ) {
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$serialized[] = [
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'key' => $key,
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'value' => [ self::TYPE_MAP[$type] => $value ]
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];
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}
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}
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return $serialized;
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}
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}
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