113 lines
3.9 KiB
PHP
113 lines
3.9 KiB
PHP
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<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2018 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
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*
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*/
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namespace oat\tao\model\search\index;
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use oat\tao\model\TaoOntology;
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use oat\tao\model\search\Search;
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use oat\generis\model\kernel\persistence\smoothsql\search\ComplexSearchService;
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use oat\search\helper\SupportedOperatorHelper;
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use oat\tao\model\resources\ResourceIterator;
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/**
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* Class IndexSinceLastRunService
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*
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* implementation of IndexService which do indexing of resourced updated or created since last launch of indexing.
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*
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* @package oat\tao\model\search\index
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*/
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class IndexSinceLastRunService extends IndexService
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{
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const OPTION_LASTRUN_STORE = 'lastrun_store';
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const OPTION_INDEX_SINCE_LAST_RUN = 'index_since_last_run';
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const LAST_LAUNCH_TIME_KEY = 'tao/IndexService:lastLaunchTime';
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public function runIndexing(): int
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{
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$time = microtime(true);
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$iterator = $this->getResourceIterator($this->getLastIndexTime(), $time);
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$indexIterator = new IndexIterator($iterator);
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$indexIterator->setServiceLocator($this->getServiceLocator());
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$searchService = $this->getServiceLocator()->get(Search::SERVICE_ID);
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$result = $searchService->index($indexIterator);
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$this->updateLastIndexTime($time);
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$this->logDebug($result . ' resources have been indexed by ' . static::class);
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return $result;
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}
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/**
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* @return \Iterator
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* @param boolean $sinceLast load resources updated/created since last indexation
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*/
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protected function getResourceIterator($from = null, $to = null)
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{
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if ($from === null || $from === 0) {
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return parent::getResourceIterator();
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}
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if ($to === null) {
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$to = microtime(true);
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}
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$search = $this->getServiceLocator()->get(ComplexSearchService::class);
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$queryBuilder = $search->query();
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$criteria = $queryBuilder->newQuery();
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$criteria->addCriterion(
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TaoOntology::PROPERTY_UPDATED_AT,
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SupportedOperatorHelper::BETWEEN,
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[$from, $to]
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);
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$iterator = new ResourceIterator($this->getIndexedClasses(), $criteria);
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$iterator->setServiceLocator($this->getServiceLocator());
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return $iterator;
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}
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/**
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* Update time of the last indexation
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* @throws \common_Exception
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*/
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private function updateLastIndexTime($time)
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{
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$this->getPersistence()->set(self::LAST_LAUNCH_TIME_KEY, $time);
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}
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/**
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* Get time of the last indexation. 0 if no time in the storage.
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* @return integer
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*/
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private function getLastIndexTime()
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{
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$result = $this->getPersistence()->get(self::LAST_LAUNCH_TIME_KEY);
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return $result ? $result : 0;
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}
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/**
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* @return \common_persistence_KeyValuePersistence
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* @throws
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*/
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private function getPersistence()
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{
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if (!$this->hasOption(self::OPTION_LASTRUN_STORE)) {
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throw new \InvalidArgumentException('Persistence for ' . self::SERVICE_ID . ' is not configured');
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}
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$persistenceId = $this->getOption(self::OPTION_LASTRUN_STORE);
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return $this->getServiceLocator()->get(\common_persistence_Manager::SERVICE_ID)->getPersistenceById($persistenceId);
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}
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}
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