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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch\Maintenance\Validators; |
| 4 | |
| 5 | use CirrusSearch\Maintenance\Printer; |
| 6 | use Elastica\Index; |
| 7 | use Status; |
| 8 | |
| 9 | class ShardAllocationValidator extends Validator { |
| 10 | /** |
| 11 | * @var Index |
| 12 | */ |
| 13 | private $index; |
| 14 | |
| 15 | /** |
| 16 | * @var array |
| 17 | */ |
| 18 | private $indexAllocation; |
| 19 | |
| 20 | /** |
| 21 | * @param Index $index |
| 22 | * @param array $indexAllocation |
| 23 | * @param Printer|null $out |
| 24 | */ |
| 25 | public function __construct( Index $index, array $indexAllocation, Printer $out = null ) { |
| 26 | parent::__construct( $out ); |
| 27 | |
| 28 | $this->index = $index; |
| 29 | $this->indexAllocation = $indexAllocation; |
| 30 | } |
| 31 | |
| 32 | /** |
| 33 | * @return Status |
| 34 | */ |
| 35 | public function validate() { |
| 36 | $this->outputIndented( "\tValidating shard allocation settings..." ); |
| 37 | |
| 38 | $actual = $this->fetchActualAllocation(); |
| 39 | $changed = false; |
| 40 | foreach ( [ 'include', 'exclude', 'require' ] as $type ) { |
| 41 | $desired = $this->indexAllocation[$type]; |
| 42 | if ( $desired ) { |
| 43 | $this->output( "\n" ); |
| 44 | $this->outputIndented( "\t\tUpdating '$type' allocations..." ); |
| 45 | $this->set( $type, $desired ); |
| 46 | $this->output( "done" ); |
| 47 | $changed = true; |
| 48 | } |
| 49 | if ( isset( $actual[$type] ) ) { |
| 50 | $undesired = array_filter( array_keys( $actual[$type] ), |
| 51 | static function ( $key ) use ( $actual, $type, $desired ) { |
| 52 | return $actual[$type][$key] !== '' && !isset( $desired[$key] ); |
| 53 | } |
| 54 | ); |
| 55 | |
| 56 | if ( $undesired ) { |
| 57 | $this->output( "\n" ); |
| 58 | $this->outputIndented( "\t\tClearing '$type' allocations..." ); |
| 59 | $this->set( $type, array_fill_keys( $undesired, '' ) ); |
| 60 | $this->output( "done" ); |
| 61 | $changed = true; |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | if ( $changed ) { |
| 66 | $this->output( "\n" ); |
| 67 | } else { |
| 68 | $this->output( "done\n" ); |
| 69 | } |
| 70 | |
| 71 | return Status::newGood(); |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * @return array |
| 76 | */ |
| 77 | private function fetchActualAllocation() { |
| 78 | $settings = $this->index->getSettings()->get(); |
| 79 | return $settings['routing']['allocation'] ?? []; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * @param string $type |
| 84 | * @param array $allocation |
| 85 | */ |
| 86 | private function set( $type, $allocation ) { |
| 87 | $this->index->getSettings()->set( [ |
| 88 | 'routing' => [ |
| 89 | 'allocation' => [ |
| 90 | $type => $allocation, |
| 91 | ] |
| 92 | ] |
| 93 | ] ); |
| 94 | } |
| 95 | } |