public function testCanConstructQueryDependencyLinksStore()
{
$store = $this->getMockBuilder('\\SMW\\Store')->disableOriginalConstructor()->getMockForAbstractClass();
$instance = new QueryDependencyLinksStoreFactory();
$this->assertInstanceOf('\\SMW\\SQLStore\\QueryDependency\\QueryDependencyLinksStore', $instance->newQueryDependencyLinksStore($store));
}
private function registerHooksForInternalUse(ApplicationFactory $applicationFactory, DeferredRequestDispatchManager $deferredRequestDispatchManager)
{
$queryDependencyLinksStoreFactory = new QueryDependencyLinksStoreFactory();
$queryDependencyLinksStore = $queryDependencyLinksStoreFactory->newQueryDependencyLinksStore($applicationFactory->getStore());
$transitionalDiffStore = $applicationFactory->singleton('TransitionalDiffStore');
/**
* @see https://www.semantic-mediawiki.org/wiki/Hooks#SMW::SQLStore::AfterDataUpdateComplete
*/
$this->handlers['SMW::SQLStore::AfterDataUpdateComplete'] = function ($store, $semanticData, $compositePropertyTableDiffIterator) use($queryDependencyLinksStoreFactory, $queryDependencyLinksStore, $deferredRequestDispatchManager, $transitionalDiffStore) {
// When in commandLine mode avoid deferred execution and run a process
// within the same transaction
$deferredRequestDispatchManager->isCommandLineMode($store->getOptions()->has('isCommandLineMode') ? $store->getOptions()->get('isCommandLineMode') : $GLOBALS['wgCommandLineMode']);
$queryDependencyLinksStore->setStore($store);
$subject = $semanticData->getSubject();
$slot = $transitionalDiffStore->createSlotFrom($compositePropertyTableDiffIterator);
$queryDependencyLinksStore->pruneOutdatedTargetLinks($subject, $compositePropertyTableDiffIterator);
$entityIdListRelevanceDetectionFilter = $queryDependencyLinksStoreFactory->newEntityIdListRelevanceDetectionFilter($store, $compositePropertyTableDiffIterator);
$jobParameters = $queryDependencyLinksStore->buildParserCachePurgeJobParametersFrom($entityIdListRelevanceDetectionFilter);
$deferredRequestDispatchManager->scheduleParserCachePurgeJobWith($subject->getTitle(), $jobParameters);
$fulltextSearchTableFactory = new FulltextSearchTableFactory();
$textByChangeUpdater = $fulltextSearchTableFactory->newTextByChangeUpdater($store);
$textByChangeUpdater->pushUpdates($compositePropertyTableDiffIterator, $deferredRequestDispatchManager, $slot);
// Since we cannot predict as to when the slot is used and by whom,
// schedule a job to ensure to be the last in-line to clean-up
// any remaining slots for this transaction
$deferredRequestDispatchManager->scheduleChronologyPurgeJobWith($subject->getTitle(), array('slot:id' => $slot));
return true;
};
/**
* @see https://www.semantic-mediawiki.org/wiki/Hooks#SMW::Store::AfterQueryResultLookupComplete
*/
$this->handlers['SMW::Store::AfterQueryResultLookupComplete'] = function ($store, &$result) use($queryDependencyLinksStore, $applicationFactory) {
$queryDependencyLinksStore->setStore($store);
$queryDependencyLinksStore->doUpdateDependenciesFrom($result);
$applicationFactory->singleton('CachedQueryResultPrefetcher')->recordStats();
return true;
};
}
/**
* Based on the CHUNK_SIZE, target links are purged in an instant if those
* selected entities are < CHUNK_SIZE which should be enough for most
* common queries that only share a limited amount of dependencies, yet for
* queries that expect a large subject/dependency pool, doing an online update
* for all at once is not feasible hence the iterative process of creating
* batches that run through the job scheduler.
*
* @param array|string $idList
*/
private function findEmbeddedQueryTargetLinksBatches($idList)
{
if (is_string($idList) && strpos($idList, '|') !== false) {
$idList = explode('|', $idList);
}
if ($idList === array()) {
return true;
}
$queryDependencyLinksStoreFactory = new QueryDependencyLinksStoreFactory();
$queryDependencyLinksStore = $queryDependencyLinksStoreFactory->newQueryDependencyLinksStore($this->store);
$requestOptions = new RequestOptions();
// +1 to look ahead
$requestOptions->setLimit($this->limit + 1);
$requestOptions->setOffset($this->offset);
$hashList = $queryDependencyLinksStore->findEmbeddedQueryTargetLinksHashListFor($idList, $requestOptions);
if ($hashList === array()) {
return true;
}
$countedHashListEntries = count($hashList);
// If more results are available then use an iterative increase to fetch
// the remaining updates by creating successive jobs
if ($countedHashListEntries > $this->limit) {
$job = new self($this->getTitle(), array('idlist' => $idList, 'limit' => $this->limit, 'offset' => $this->offset + self::CHUNK_SIZE));
$job->run();
}
wfDebugLog('smw', __METHOD__ . " counted: {$countedHashListEntries} | offset: {$this->offset} for " . $this->getTitle()->getPrefixedDBKey() . "\n");
list($hashList, $queryList) = $this->doBuildUniqueTargetLinksHashList($hashList);
$this->applicationFactory->singleton('CachedQueryResultPrefetcher')->resetCacheBy($queryList);
$this->addPagesToUpdater($hashList);
}