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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch\Maintenance\Validators; |
| 4 | |
| 5 | use CirrusSearch\ElasticaErrorHandler; |
| 6 | use CirrusSearch\Maintenance\Printer; |
| 7 | use Elastica\Exception\ExceptionInterface; |
| 8 | use Elastica\Index; |
| 9 | use Elastica\Mapping; |
| 10 | use MediaWiki\Language\RawMessage; |
| 11 | use Status; |
| 12 | use Wikimedia\Assert\Assert; |
| 13 | |
| 14 | class MappingValidator extends Validator { |
| 15 | /** |
| 16 | * @var Index |
| 17 | */ |
| 18 | private $index; |
| 19 | |
| 20 | /** |
| 21 | * @var string |
| 22 | */ |
| 23 | private $masterTimeout; |
| 24 | |
| 25 | /** |
| 26 | * @var bool |
| 27 | */ |
| 28 | private $optimizeIndexForExperimentalHighlighter; |
| 29 | |
| 30 | /** |
| 31 | * @var array |
| 32 | */ |
| 33 | private $availablePlugins; |
| 34 | |
| 35 | /** |
| 36 | * @var array |
| 37 | */ |
| 38 | private $mappingConfig; |
| 39 | |
| 40 | /** |
| 41 | * @todo this constructor takes way too much arguments - refactor |
| 42 | * |
| 43 | * @param Index $index |
| 44 | * @param string $masterTimeout |
| 45 | * @param bool $optimizeIndexForExperimentalHighlighter |
| 46 | * @param array $availablePlugins |
| 47 | * @param array $mappingConfig |
| 48 | * @param Printer|null $out |
| 49 | */ |
| 50 | public function __construct( |
| 51 | Index $index, |
| 52 | $masterTimeout, |
| 53 | $optimizeIndexForExperimentalHighlighter, |
| 54 | array $availablePlugins, |
| 55 | array $mappingConfig, |
| 56 | Printer $out = null |
| 57 | ) { |
| 58 | parent::__construct( $out ); |
| 59 | |
| 60 | $this->index = $index; |
| 61 | $this->masterTimeout = $masterTimeout; |
| 62 | $this->optimizeIndexForExperimentalHighlighter = $optimizeIndexForExperimentalHighlighter; |
| 63 | $this->availablePlugins = $availablePlugins; |
| 64 | // Could be supported, but prefer consistency |
| 65 | Assert::parameter( isset( $mappingConfig['properties'] ), '$mappingConfig', |
| 66 | 'Mapping types are no longer supported, properties must be top level' ); |
| 67 | $this->mappingConfig = $mappingConfig; |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * @return Status |
| 72 | */ |
| 73 | public function validate() { |
| 74 | $this->outputIndented( "Validating mappings..." ); |
| 75 | if ( $this->optimizeIndexForExperimentalHighlighter && |
| 76 | !in_array( 'experimental-highlighter', $this->availablePlugins ) ) { |
| 77 | $this->output( "impossible!\n" ); |
| 78 | return Status::newFatal( new RawMessage( |
| 79 | "wgCirrusSearchOptimizeIndexForExperimentalHighlighter is set to true but the " . |
| 80 | "'experimental-highlighter' plugin is not installed on all hosts." ) ); |
| 81 | } |
| 82 | |
| 83 | if ( !$this->compareMappingToActual() ) { |
| 84 | $action = new Mapping( $this->mappingConfig['properties'] ); |
| 85 | $action->setParam( "dynamic", false ); |
| 86 | |
| 87 | try { |
| 88 | $action->send( $this->index, [ |
| 89 | 'master_timeout' => $this->masterTimeout, |
| 90 | ] ); |
| 91 | $this->output( "corrected\n" ); |
| 92 | } catch ( ExceptionInterface $e ) { |
| 93 | $this->output( "failed!\n" ); |
| 94 | $message = ElasticaErrorHandler::extractMessage( $e ); |
| 95 | return Status::newFatal( new RawMessage( |
| 96 | "Couldn't update existing mappings. You may need to reindex.\nHere is elasticsearch's error message: $message\n" ) ); |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | return Status::newGood(); |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Check that the mapping returned from Elasticsearch is as we want it. |
| 105 | * |
| 106 | * @return bool is the mapping good enough for us? |
| 107 | */ |
| 108 | private function compareMappingToActual() { |
| 109 | $actualMappings = $this->index->getMapping(); |
| 110 | $this->output( "\n" ); |
| 111 | $this->outputIndented( "\tValidating mapping..." ); |
| 112 | if ( $this->checkConfig( $actualMappings, $this->mappingConfig ) ) { |
| 113 | $this->output( "ok\n" ); |
| 114 | return true; |
| 115 | } else { |
| 116 | $this->output( "different..." ); |
| 117 | return false; |
| 118 | } |
| 119 | } |
| 120 | } |