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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Elasticsearch\Model\Adapter;
use Elasticsearch\Common\Exceptions\Missing404Exception;
use Exception;
use Magento\AdvancedSearch\Model\Client\ClientInterface;
use Magento\Catalog\Api\ProductAttributeRepositoryInterface;
use Magento\Elasticsearch\Model\Adapter\FieldMapper\Product\FieldProvider\StaticField;
use Magento\Elasticsearch\Model\Adapter\Index\BuilderInterface;
use Magento\Elasticsearch\Model\Adapter\Index\IndexNameResolver;
use Magento\Elasticsearch\Model\Config;
use Magento\Elasticsearch\SearchAdapter\ConnectionManager;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\Stdlib\ArrayManager;
use Psr\Log\LoggerInterface;
use Magento\AdvancedSearch\Helper\Data;
/**
* Elasticsearch adapter
* @SuppressWarnings(PHPMD.TooManyFields)
* @SuppressWarnings(PHPMD.CouplingBetweenObjects)
*/
class Elasticsearch
{
/**#@+
* Text flags for Elasticsearch bulk actions
*/
public const BULK_ACTION_INDEX = 'index';
public const BULK_ACTION_CREATE = 'create';
public const BULK_ACTION_DELETE = 'delete';
public const BULK_ACTION_UPDATE = 'update';
/**#@-*/
/**
* Buffer for total fields limit in mapping.
*/
private const MAPPING_TOTAL_FIELDS_BUFFER_LIMIT = 1000;
/**
* @var ConnectionManager
*/
protected $connectionManager;
/**
* @var IndexNameResolver
*/
protected $indexNameResolver;
/**
* @var FieldMapperInterface
*/
protected $fieldMapper;
/**
* @var Config
*/
protected $clientConfig;
/**
* @var ClientInterface
*/
protected $client;
/**
* @var BuilderInterface
*/
protected $indexBuilder;
/**
* @var LoggerInterface
*/
protected $logger;
/**
* @var array
*/
protected $preparedIndex = [];
/**
* @var BatchDataMapperInterface
*/
private $batchDocumentDataMapper;
/**
* @var array
*/
private $mappedAttributes = [];
/**
* @var string[]
*/
private $indexByCode = [];
/**
* @var ProductAttributeRepositoryInterface
*/
private $productAttributeRepository;
/**
* @var StaticField
*/
private $staticFieldProvider;
/**
* @var ArrayManager
*/
private $arrayManager;
/**
* @var Data
*/
protected $helper;
/**
* @var array
*/
private $responseErrorExceptionList = [
'elasticsearchMissing404' => Missing404Exception::class
];
/**
* @param ConnectionManager $connectionManager
* @param FieldMapperInterface $fieldMapper
* @param Config $clientConfig
* @param Index\BuilderInterface $indexBuilder
* @param LoggerInterface $logger
* @param Index\IndexNameResolver $indexNameResolver
* @param BatchDataMapperInterface $batchDocumentDataMapper
* @param Data $helper
* @param array $options
* @param ProductAttributeRepositoryInterface|null $productAttributeRepository
* @param StaticField|null $staticFieldProvider
* @param ArrayManager|null $arrayManager
* @param array $responseErrorExceptionList
* @throws LocalizedException
* @SuppressWarnings(PHPMD.ExcessiveParameterList)
*/
public function __construct(
ConnectionManager $connectionManager,
FieldMapperInterface $fieldMapper,
Config $clientConfig,
BuilderInterface $indexBuilder,
LoggerInterface $logger,
IndexNameResolver $indexNameResolver,
BatchDataMapperInterface $batchDocumentDataMapper,
Data $helper,
$options = [],
ProductAttributeRepositoryInterface $productAttributeRepository = null,
StaticField $staticFieldProvider = null,
ArrayManager $arrayManager = null,
array $responseErrorExceptionList = []
) {
$this->connectionManager = $connectionManager;
$this->fieldMapper = $fieldMapper;
$this->clientConfig = $clientConfig;
$this->indexBuilder = $indexBuilder;
$this->logger = $logger;
$this->indexNameResolver = $indexNameResolver;
$this->batchDocumentDataMapper = $batchDocumentDataMapper;
$this->helper = $helper;
$this->productAttributeRepository = $productAttributeRepository ?:
ObjectManager::getInstance()->get(ProductAttributeRepositoryInterface::class);
$this->staticFieldProvider = $staticFieldProvider ?:
ObjectManager::getInstance()->get(StaticField::class);
$this->arrayManager = $arrayManager ?:
ObjectManager::getInstance()->get(ArrayManager::class);
$this->responseErrorExceptionList = array_merge($this->responseErrorExceptionList, $responseErrorExceptionList);
try {
$this->client = $this->connectionManager->getConnection($options);
} catch (Exception $e) {
$this->logger->critical($e);
throw new LocalizedException(
__('The search failed because of a search engine misconfiguration.')
);
}
}
/**
* Retrieve Elasticsearch server status
*
* @return bool
* @throws LocalizedException
*/
public function ping()
{
try {
$response = $this->client->ping();
} catch (Exception $e) {
throw new LocalizedException(
__('Could not ping search engine: %1', $e->getMessage())
);
}
return $response;
}
/**
* Create Elasticsearch documents by specified data
*
* @param array $documentData
* @param int $storeId
* @return array
*/
public function prepareDocsPerStore(array $documentData, $storeId)
{
$documents = [];
if (count($documentData)) {
$documents = $this->batchDocumentDataMapper->map(
$documentData,
$storeId
);
}
return $documents;
}
/**
* Add prepared Elasticsearch documents to Elasticsearch index
*
* @param array $documents
* @param int $storeId
* @param string $mappedIndexerId
* @return $this
* @throws Exception
*/
public function addDocs(array $documents, $storeId, $mappedIndexerId)
{
if (count($documents)) {
try {
$indexName = $this->indexNameResolver->getIndexName($storeId, $mappedIndexerId, $this->preparedIndex);
$bulkIndexDocuments = $this->getDocsArrayInBulkIndexFormat($documents, $indexName);
$this->client->bulkQuery($bulkIndexDocuments);
} catch (Exception $e) {
$this->logger->critical($e);
throw $e;
}
}
return $this;
}
/**
* Removes all documents from Elasticsearch index
*
* @param int $storeId
* @param string $mappedIndexerId
* @return $this
*/
public function cleanIndex($storeId, $mappedIndexerId)
{
// needed to fix bug with double indices in alias because of second reindex in same process
unset($this->preparedIndex[$storeId]);
$this->checkIndex($storeId, $mappedIndexerId, true);
$indexName = $this->indexNameResolver->getIndexName($storeId, $mappedIndexerId, $this->preparedIndex);
// prepare new index name and increase version
$indexPattern = $this->indexNameResolver->getIndexPattern($storeId, $mappedIndexerId);
$version = (int)(str_replace($indexPattern, '', $indexName));
// compatibility with snapshotting collision
$deleteQueue = [];
do {
$newIndexName = $indexPattern . (++$version);
if ($this->client->indexExists($newIndexName)) {
$deleteQueue[]= $newIndexName;
$indexExists = true;
} else {
$indexExists = false;
}
} while ($indexExists);
foreach ($deleteQueue as $indexToDelete) {
// remove index if already exists, wildcard deletion may cause collisions
try {
$this->client->deleteIndex($indexToDelete);
} catch (Exception $e) {
$this->logger->critical($e);
}
}
// prepare new index
$this->prepareIndex($storeId, $newIndexName, $mappedIndexerId);
return $this;
}
/**
* Delete documents from Elasticsearch index by Ids
*
* @param array $documentIds
* @param int $storeId
* @param string $mappedIndexerId
* @return $this
* @throws Exception
*/
public function deleteDocs(array $documentIds, $storeId, $mappedIndexerId)
{
try {
$this->checkIndex($storeId, $mappedIndexerId, false);
$indexName = $this->indexNameResolver->getIndexName($storeId, $mappedIndexerId, $this->preparedIndex);
$bulkDeleteDocuments = $this->getDocsArrayInBulkIndexFormat(
$documentIds,
$indexName,
self::BULK_ACTION_DELETE
);
$this->client->bulkQuery($bulkDeleteDocuments);
} catch (Exception $e) {
$this->logger->critical($e);
throw $e;
}
return $this;
}
/**
* Reformat documents array to bulk format
*
* @param array $documents
* @param string $indexName
* @param string $action
* @return array
*/
protected function getDocsArrayInBulkIndexFormat(
$documents,
$indexName,
$action = self::BULK_ACTION_INDEX
) {
$bulkArray = [
'index' => $indexName,
'type' => $this->clientConfig->getEntityType(),
'body' => [],
'refresh' => true,
];
foreach ($documents as $id => $document) {
if ($this->helper->isClientOpenSearchV2()) {
$bulkArray['body'][] = [
$action => [
'_id' => $id,
'_index' => $indexName
]
];
} else {
$bulkArray['body'][] = [
$action => [
'_id' => $id,
'_type' => $this->clientConfig->getEntityType(),
'_index' => $indexName
]
];
}
if ($action == self::BULK_ACTION_INDEX) {
$bulkArray['body'][] = $document;
}
}
if ($this->helper->isClientOpenSearchV2()) {
unset($bulkArray['type']);
}
return $bulkArray;
}
/**
* Checks whether Elasticsearch index and alias exists.
*
* @param int $storeId
* @param string $mappedIndexerId
* @param bool $checkAlias
*
* @return $this
*/
public function checkIndex(
$storeId,
$mappedIndexerId,
$checkAlias = true
) {
// create new index for store
$indexName = $this->indexNameResolver->getIndexName($storeId, $mappedIndexerId, $this->preparedIndex);
if (!$this->client->indexExists($indexName)) {
$this->prepareIndex($storeId, $indexName, $mappedIndexerId);
}
// add index to alias
if ($checkAlias) {
$namespace = $this->indexNameResolver->getIndexNameForAlias($storeId, $mappedIndexerId);
if (!$this->client->existsAlias($namespace, $indexName)) {
$this->client->updateAlias($namespace, $indexName);
}
}
return $this;
}
/**
* Update Elasticsearch alias for new index.
*
* @param int $storeId
* @param string $mappedIndexerId
* @return $this
*/
public function updateAlias($storeId, $mappedIndexerId)
{
if (!isset($this->preparedIndex[$storeId])) {
return $this;
}
$oldIndex = $this->indexNameResolver->getIndexFromAlias($storeId, $mappedIndexerId);
if ($oldIndex == $this->preparedIndex[$storeId]) {
$oldIndex = '';
}
$this->client->updateAlias(
$this->indexNameResolver->getIndexNameForAlias($storeId, $mappedIndexerId),
$this->preparedIndex[$storeId],
$oldIndex
);
// remove obsolete index
if ($oldIndex) {
try {
$this->client->deleteIndex($oldIndex);
} catch (Exception $e) {
$this->logger->critical($e);
}
unset($this->indexByCode[$mappedIndexerId . '_' . $storeId]);
}
return $this;
}
/**
* Update Elasticsearch mapping for index.
*
* @param int $storeId
* @param string $mappedIndexerId
* @param string $attributeCode
* @return $this
*/
public function updateIndexMapping(int $storeId, string $mappedIndexerId, string $attributeCode): self
{
$indexName = $this->getIndexFromAlias($storeId, $mappedIndexerId);
if (empty($indexName)) {
return $this;
}
try {
$this->updateMapping($attributeCode, $indexName);
} catch (Exception $e) {
if ($this->validateException($e)) {
unset($this->indexByCode[$mappedIndexerId . '_' . $storeId]);
$indexName = $this->getIndexFromAlias($storeId, $mappedIndexerId);
$this->updateMapping($attributeCode, $indexName);
} else {
throw $e;
}
}
return $this;
}
/**
* Check if the given class name is in the exception list
*
* @param Exception $exception
* @return bool
*/
private function validateException(Exception $exception): bool
{
return in_array(get_class($exception), $this->responseErrorExceptionList, true);
}
/**
* Retrieve index definition from class.
*
* @param int $storeId
* @param string $mappedIndexerId
* @return string
*/
private function getIndexFromAlias(int $storeId, string $mappedIndexerId): string
{
$indexCode = $mappedIndexerId . '_' . $storeId;
if (!isset($this->indexByCode[$indexCode])) {
$this->indexByCode[$indexCode] = $this->indexNameResolver->getIndexFromAlias($storeId, $mappedIndexerId);
}
return $this->indexByCode[$indexCode];
}
/**
* Retrieve mapped attributes from class.
*
* @param string $indexName
* @return array
*/
private function getMappedAttributes(string $indexName): array
{
if (empty($this->mappedAttributes[$indexName])) {
$mappedAttributes = $this->client->getMapping(['index' => $indexName]);
$pathField = $this->arrayManager->findPath('properties', $mappedAttributes);
$this->mappedAttributes[$indexName] = $this->arrayManager->get($pathField, $mappedAttributes, []);
}
return $this->mappedAttributes[$indexName];
}
/**
* Set mapped attributes to class.
*
* @param string $indexName
* @param array $mappedAttributes
* @return $this
*/
private function setMappedAttributes(string $indexName, array $mappedAttributes): self
{
foreach ($mappedAttributes as $attributeCode => $attributeParams) {
$this->mappedAttributes[$indexName][$attributeCode] = $attributeParams;
}
return $this;
}
/**
* Create new index with mapping.
*
* @param int $storeId
* @param string $indexName
* @param string $mappedIndexerId
* @return $this
*/
protected function prepareIndex($storeId, $indexName, $mappedIndexerId)
{
$this->indexBuilder->setStoreId($storeId);
$settings = $this->indexBuilder->build();
$allAttributeTypes = $this->fieldMapper->getAllAttributesTypes(
[
'entityType' => $mappedIndexerId,
// Use store id instead of website id from context for save existing fields mapping.
// In future websiteId will be eliminated due to index stored per store
'websiteId' => $storeId,
// this parameter is introduced to replace 'websiteId' which name does not reflect
// the value assigned to it
'storeId' => $storeId
]
);
$settings['index']['mapping']['total_fields']['limit'] = $this->getMappingTotalFieldsLimit($allAttributeTypes);
$this->client->createIndex($indexName, ['settings' => $settings]);
$this->client->addFieldsMapping(
$allAttributeTypes,
$indexName,
$this->clientConfig->getEntityType()
);
$this->preparedIndex[$storeId] = $indexName;
return $this;
}
/**
* Get total fields limit for mapping.
*
* @param array $allAttributeTypes
* @return int
*/
private function getMappingTotalFieldsLimit(array $allAttributeTypes): int
{
$count = count($allAttributeTypes);
foreach ($allAttributeTypes as $attributeType) {
if (isset($attributeType['fields'])) {
$count += count($attributeType['fields']);
}
}
return $count + self::MAPPING_TOTAL_FIELDS_BUFFER_LIMIT;
}
/**
* Perform index mapping update
*
* @param string $attributeCode
* @param string $indexName
* @return void
*/
private function updateMapping(string $attributeCode, string $indexName): void
{
$attribute = $this->productAttributeRepository->get($attributeCode);
$newAttributeMapping = $this->staticFieldProvider->getField($attribute);
$mappedAttributes = $this->getMappedAttributes($indexName);
$attrToUpdate = array_diff_key($newAttributeMapping, $mappedAttributes);
if (!empty($attrToUpdate)) {
$settings['index']['mapping']['total_fields']['limit'] = $this
->getMappingTotalFieldsLimit(array_merge($mappedAttributes, $attrToUpdate));
$this->client->putIndexSettings($indexName, ['settings' => $settings]);
$this->client->addFieldsMapping(
$attrToUpdate,
$indexName,
$this->clientConfig->getEntityType()
);
$this->setMappedAttributes($indexName, $attrToUpdate);
}
}
}