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1 | <?php |
2 | |
3 | /** |
4 | * This program is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU General Public License |
6 | * as published by the Free Software Foundation; under version 2 |
7 | * of the License (non-upgradable). |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the Free Software |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
17 | * |
18 | * Copyright (c) 2018 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT); |
19 | * |
20 | */ |
21 | |
22 | namespace oat\tao\model\search\index; |
23 | |
24 | use oat\tao\model\TaoOntology; |
25 | use oat\tao\model\search\Search; |
26 | use oat\generis\model\kernel\persistence\smoothsql\search\ComplexSearchService; |
27 | use oat\search\helper\SupportedOperatorHelper; |
28 | use oat\tao\model\resources\ResourceIterator; |
29 | |
30 | /** |
31 | * Class IndexSinceLastRunService |
32 | * |
33 | * implementation of IndexService which do indexing of resourced updated or created since last launch of indexing. |
34 | * |
35 | * @package oat\tao\model\search\index |
36 | */ |
37 | class IndexSinceLastRunService extends IndexService |
38 | { |
39 | public const OPTION_LASTRUN_STORE = 'lastrun_store'; |
40 | public const OPTION_INDEX_SINCE_LAST_RUN = 'index_since_last_run'; |
41 | public const LAST_LAUNCH_TIME_KEY = 'tao/IndexService:lastLaunchTime'; |
42 | |
43 | public function runIndexing(): int |
44 | { |
45 | $time = microtime(true); |
46 | $iterator = $this->getResourceIterator($this->getLastIndexTime(), $time); |
47 | $indexIterator = new IndexIterator($iterator); |
48 | $indexIterator->setServiceLocator($this->getServiceLocator()); |
49 | $searchService = $this->getServiceLocator()->get(Search::SERVICE_ID); |
50 | $result = $searchService->index($indexIterator); |
51 | $this->updateLastIndexTime($time); |
52 | $this->logDebug($result . ' resources have been indexed by ' . static::class); |
53 | return $result; |
54 | } |
55 | |
56 | /** |
57 | * @return \Iterator |
58 | * @param boolean $sinceLast load resources updated/created since last indexation |
59 | */ |
60 | protected function getResourceIterator($from = null, $to = null) |
61 | { |
62 | if ($from === null || $from === 0) { |
63 | return parent::getResourceIterator(); |
64 | } |
65 | if ($to === null) { |
66 | $to = microtime(true); |
67 | } |
68 | $search = $this->getServiceLocator()->get(ComplexSearchService::class); |
69 | $queryBuilder = $search->query(); |
70 | $criteria = $queryBuilder->newQuery(); |
71 | $criteria->addCriterion( |
72 | TaoOntology::PROPERTY_UPDATED_AT, |
73 | SupportedOperatorHelper::BETWEEN, |
74 | [$from, $to] |
75 | ); |
76 | $iterator = new ResourceIterator($this->getIndexedClasses(), $criteria); |
77 | $iterator->setServiceLocator($this->getServiceLocator()); |
78 | return $iterator; |
79 | } |
80 | |
81 | /** |
82 | * Update time of the last indexation |
83 | * @throws \common_Exception |
84 | */ |
85 | private function updateLastIndexTime($time) |
86 | { |
87 | $this->getPersistence()->set(self::LAST_LAUNCH_TIME_KEY, $time); |
88 | } |
89 | |
90 | /** |
91 | * Get time of the last indexation. 0 if no time in the storage. |
92 | * @return integer |
93 | */ |
94 | private function getLastIndexTime() |
95 | { |
96 | $result = $this->getPersistence()->get(self::LAST_LAUNCH_TIME_KEY); |
97 | return $result ? $result : 0; |
98 | } |
99 | |
100 | /** |
101 | * @return \common_persistence_KeyValuePersistence |
102 | * @throws |
103 | */ |
104 | private function getPersistence() |
105 | { |
106 | if (!$this->hasOption(self::OPTION_LASTRUN_STORE)) { |
107 | throw new \InvalidArgumentException('Persistence for ' . self::SERVICE_ID . ' is not configured'); |
108 | } |
109 | $persistenceId = $this->getOption(self::OPTION_LASTRUN_STORE); |
110 | return $this |
111 | ->getServiceLocator() |
112 | ->get(\common_persistence_Manager::SERVICE_ID) |
113 | ->getPersistenceById($persistenceId); |
114 | } |
115 | } |