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1 | <?php |
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2 | |||
3 | namespace SEQL; |
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4 | |||
5 | use Onoi\HttpRequest\HttpRequestFactory; |
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6 | use SEQL\ByHttpRequest\JsonResponseParser; |
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7 | use SEQL\ByHttpRequest\QueryResultFetcher; |
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8 | use SMW\SQLStore\SQLStore; |
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9 | use SMW\ApplicationFactory; |
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10 | use SMWQuery as Query; |
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11 | use SMWQueryResult as QueryResult; |
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12 | use Interwiki; |
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13 | |||
14 | /** |
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15 | * @license GNU GPL v2+ |
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16 | * @since 1.0 |
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17 | * |
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18 | * @author mwjames |
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19 | */ |
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20 | class ByHttpRequestQueryLookup extends SQLStore { |
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21 | |||
22 | /** |
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23 | * @var QueryResultFactory |
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24 | */ |
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25 | private $queryResultFactory; |
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26 | |||
27 | /** |
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28 | * @var CacheFactory |
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29 | */ |
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30 | private $cacheFactory; |
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31 | |||
32 | /** |
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33 | * @since 1.0 |
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34 | * |
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35 | * @param Query $query |
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36 | * |
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37 | * @return QueryResult |
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38 | */ |
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39 | 3 | public function getQueryResult( Query $query ) { |
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40 | |||
41 | 3 | $this->queryResultFactory = new QueryResultFactory( $this ); |
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42 | |||
43 | 3 | if ( $query->querymode === Query::MODE_DEBUG ) { |
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44 | 1 | $query->addErrors( array( wfMessage( 'seql-debug-query-not-supported' )->text() ) ); |
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45 | 1 | return $this->queryResultFactory->newEmptyQueryResult( $query ); |
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46 | } |
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47 | |||
48 | 2 | $interwiki = $this->tryToMatchInterwikiFor( $query ); |
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49 | |||
50 | 2 | if ( $interwiki === false || $interwiki === null ) { |
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51 | 1 | $query->addErrors( array( wfMessage( 'seql-interwiki-prefix-is-missing', $query->getQuerySource() )->text() ) ); |
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52 | 1 | return $this->queryResultFactory->newEmptyQueryResult( $query ); |
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53 | } |
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54 | |||
55 | 1 | return $this->fetchQueryResultFor( $query, $interwiki ); |
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56 | } |
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57 | |||
58 | 1 | protected function tryToMatchInterwikiFor( Query $query ) { |
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59 | 1 | return Interwiki::fetch( $query->getQuerySource() ); |
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60 | } |
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61 | |||
62 | 1 | protected function fetchQueryResultFor( Query $query, $interwiki ) { |
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63 | |||
64 | 1 | $queryResultFetcher = new QueryResultFetcher( |
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65 | 1 | new HttpRequestFactory( $this->getCacheFactory()->newMediaWikiCompositeCache( $GLOBALS['seqlgHttpResponseCacheType'] ) ), |
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66 | 1 | $this->queryResultFactory, |
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67 | 1 | new JsonResponseParser( new DataValueDeserializer( $query->getQuerySource() ) ) |
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68 | 1 | ); |
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69 | |||
70 | 1 | $queryResultFetcher->setHttpRequestEndpoint( $interwiki->getApi() ); |
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71 | 1 | $queryResultFetcher->setRepositoryTargetUrl( $interwiki->getUrl() ); |
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72 | |||
73 | 1 | $queryResultFetcher->setHttpResponseCachePrefix( $this->getCacheFactory()->getCachePrefix() ); |
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74 | 1 | $queryResultFetcher->setHttpResponseCacheLifetime( $GLOBALS['seqlgHttpResponseCacheLifetime'] ); |
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75 | |||
76 | 1 | return $queryResultFetcher->fetchQueryResult( $query ); |
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77 | } |
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78 | |||
79 | 1 | private function getCacheFactory() { |
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80 | |||
81 | 1 | if ( $this->cacheFactory === null ) { |
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82 | 1 | $this->cacheFactory = ApplicationFactory::getInstance()->newCacheFactory(); |
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83 | 1 | } |
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84 | |||
85 | 1 | return $this->cacheFactory; |
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86 | } |
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87 | |||
88 | } |
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89 |
Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: