public function getConfiguredFieldIdentifier($fieldName, ContentType $contentType)
    {
        $contentTypeName = $contentType->identifier;

        if (isset($this->parameters['fieldIdentifiers'])) {
            $fieldIdentifiers = $this->parameters['fieldIdentifiers'];

            if (isset($fieldIdentifiers[$fieldName]) && !empty($fieldIdentifiers[$fieldName][$contentTypeName])) {
                return $fieldIdentifiers[$fieldName][$contentTypeName];
            }
        }

        return $fieldName;
    }