RatioParser.php

<?php

declare (strict_types=1);
namespace OpenTelemetry\SDK\Common\Configuration\Parser;

use InvalidArgumentException;
use RangeException;
class RatioParser {
    private const MAX_VALUE = 1;
    private const MIN_VALUE = 0;
    public static function parse($value) : float {
        if (filter_var($value, FILTER_VALIDATE_FLOAT) === false) {
            throw new InvalidArgumentException(sprintf('Value "%s" contains non-numeric value', $value));
        }
        $result = (double) $value;
        if ($result > self::MAX_VALUE || $result < self::MIN_VALUE) {
            throw new RangeException(sprintf('Value must not be lower than %s or higher than %s. Given: %s', self::MIN_VALUE, self::MAX_VALUE, $value));
        }
        return $result;
    }

}