Smile\ElasticsuiteCatalogRule\Model\Rule\Condition\Product::getInputType PHP Method

    public function getInputType()
    {
        $inputType = 'string';
        $selectAttributes = ['attribute_set_id', 'stock.is_in_stock', 'has_image', 'price.is_discount'];
        if (in_array($this->getAttribute(), $selectAttributes)) {
            $inputType = 'select';
        } elseif ($this->getAttribute() === 'price') {
            $inputType = 'numeric';
        } elseif (is_object($this->getAttributeObject())) {
            $frontendInput = $this->getAttributeObject()->getFrontendInput();
            if ($this->getAttributeObject()->getAttributeCode() === 'category_ids') {
                $inputType = 'category';
            } elseif (in_array($frontendInput, ['select', 'multiselect'])) {
                $inputType = 'multiselect';
            } elseif ($frontendInput === 'date') {
                $inputType = 'date';
            } elseif ($frontendInput === 'boolean') {
                $inputType = 'boolean';
            }
        }
        return $inputType;
    }

 /**
  * Retrieve ES mapping field name used for the current condition (including analyzer).
  *
  * @param ProductCondition $productCondition Product condition.
  *
  * @return string
  */
 private function getSearchFieldName(ProductCondition $productCondition)
 {
     $attributeName = $productCondition->getAttribute();
     $field = $this->attributeList->getField($attributeName);
     $analyzer = FieldInterface::ANALYZER_UNTOUCHED;
     if ($productCondition->getInputType() === "string") {
         $analyzer = FieldInterface::ANALYZER_STANDARD;
     }
     return $field->getMappingProperty($analyzer);
 }