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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Elasticsearch\Elasticsearch5\SearchAdapter;
use Magento\Framework\Search\RequestInterface;
use Magento\Framework\Search\Request\QueryInterface as RequestQueryInterface;
use Magento\Framework\Search\Request\Query\BoolExpression as BoolQuery;
use Magento\Framework\Search\Request\Query\Filter as FilterQuery;
use Magento\Framework\Search\Request\Query\Match as MatchQuery;
use Magento\Elasticsearch\Elasticsearch5\SearchAdapter\Query\Builder as QueryBuilder;
use Magento\Elasticsearch\SearchAdapter\Query\Builder\Match as MatchQueryBuilder;
use Magento\Elasticsearch\SearchAdapter\Filter\Builder as FilterBuilder;
/**
* Mapper class
* @api
* @since 100.2.2
*/
class Mapper
{
/**
* @var QueryBuilder
* @since 100.2.2
*/
protected $queryBuilder;
/**
* @var MatchQueryBuilder
* @since 100.2.2
*/
protected $matchQueryBuilder;
/**
* @var FilterBuilder
* @since 100.2.2
*/
protected $filterBuilder;
/**
* @param QueryBuilder $queryBuilder
* @param MatchQueryBuilder $matchQueryBuilder
* @param FilterBuilder $filterBuilder
*/
public function __construct(
QueryBuilder $queryBuilder,
MatchQueryBuilder $matchQueryBuilder,
FilterBuilder $filterBuilder
) {
$this->queryBuilder = $queryBuilder;
$this->matchQueryBuilder = $matchQueryBuilder;
$this->filterBuilder = $filterBuilder;
}
/**
* Build adapter dependent query
*
* @param RequestInterface $request
* @return array
* @since 100.2.2
*/
public function buildQuery(RequestInterface $request)
{
$searchQuery = $this->queryBuilder->initQuery($request);
$searchQuery['body']['query'] = array_merge(
$searchQuery['body']['query'],
$this->processQuery(
$request->getQuery(),
[],
BoolQuery::QUERY_CONDITION_MUST
)
);
if (isset($searchQuery['body']['query']['bool']['should'])) {
$searchQuery['body']['query']['bool']['minimum_should_match'] = 1;
}
$searchQuery = $this->queryBuilder->initAggregations($request, $searchQuery);
return $searchQuery;
}
/**
* Process query
*
* @param RequestQueryInterface $requestQuery
* @param array $selectQuery
* @param string $conditionType
* @return array
* @throws \InvalidArgumentException
* @since 100.2.2
*/
protected function processQuery(
RequestQueryInterface $requestQuery,
array $selectQuery,
$conditionType
) {
switch ($requestQuery->getType()) {
case RequestQueryInterface::TYPE_MATCH:
/** @var MatchQuery $requestQuery */
$selectQuery = $this->matchQueryBuilder->build(
$selectQuery,
$requestQuery,
$conditionType
);
break;
case RequestQueryInterface::TYPE_BOOL:
/** @var BoolQuery $requestQuery */
$selectQuery = $this->processBoolQuery($requestQuery, $selectQuery);
break;
case RequestQueryInterface::TYPE_FILTER:
/** @var FilterQuery $requestQuery */
$selectQuery = $this->processFilterQuery($requestQuery, $selectQuery, $conditionType);
break;
default:
throw new \InvalidArgumentException(sprintf('Unknown query type \'%s\'', $requestQuery->getType()));
}
return $selectQuery;
}
/**
* Process bool query
*
* @param BoolQuery $query
* @param array $selectQuery
* @return array
* @since 100.2.2
*/
protected function processBoolQuery(
BoolQuery $query,
array $selectQuery
) {
$selectQuery = $this->processBoolQueryCondition(
$query->getMust(),
$selectQuery,
BoolQuery::QUERY_CONDITION_MUST
);
$selectQuery = $this->processBoolQueryCondition(
$query->getShould(),
$selectQuery,
BoolQuery::QUERY_CONDITION_SHOULD
);
$selectQuery = $this->processBoolQueryCondition(
$query->getMustNot(),
$selectQuery,
BoolQuery::QUERY_CONDITION_NOT
);
return $selectQuery;
}
/**
* Process bool query condition (must, should, must_not)
*
* @param RequestQueryInterface[] $subQueryList
* @param array $selectQuery
* @param string $conditionType
* @return array
* @since 100.2.2
*/
protected function processBoolQueryCondition(
array $subQueryList,
array $selectQuery,
$conditionType
) {
foreach ($subQueryList as $subQuery) {
$selectQuery = $this->processQuery($subQuery, $selectQuery, $conditionType);
}
return $selectQuery;
}
/**
* Process filter query
*
* @param FilterQuery $query
* @param array $selectQuery
* @param string $conditionType
* @return array
*/
private function processFilterQuery(
FilterQuery $query,
array $selectQuery,
$conditionType
) {
switch ($query->getReferenceType()) {
case FilterQuery::REFERENCE_QUERY:
$selectQuery = $this->processQuery($query->getReference(), $selectQuery, $conditionType);
break;
case FilterQuery::REFERENCE_FILTER:
$conditionType = $conditionType === BoolQuery::QUERY_CONDITION_NOT ?
MatchQueryBuilder::QUERY_CONDITION_MUST_NOT : $conditionType;
$filterQuery = $this->filterBuilder->build($query->getReference(), $conditionType);
foreach ($filterQuery['bool'] as $condition => $filter) {
$selectQuery['bool'][$condition]= array_merge(
isset($selectQuery['bool'][$condition]) ? $selectQuery['bool'][$condition] : [],
$filter
);
}
break;
}
return $selectQuery;
}
}