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| 1 | <?php |
| 2 | |
| 3 | namespace Flow\Repository; |
| 4 | |
| 5 | use Flow\Data\FlowObjectCache; |
| 6 | use Flow\Exception\InvalidParameterException; |
| 7 | use Flow\Model\UUID; |
| 8 | |
| 9 | class MultiGetList { |
| 10 | |
| 11 | /** |
| 12 | * @var FlowObjectCache |
| 13 | */ |
| 14 | protected $cache; |
| 15 | |
| 16 | public function __construct( FlowObjectCache $cache ) { |
| 17 | $this->cache = $cache; |
| 18 | } |
| 19 | |
| 20 | /** |
| 21 | * @param string $treeType |
| 22 | * @param array $ids |
| 23 | * @param callable $loadCallback |
| 24 | * @return array |
| 25 | * @throws InvalidParameterException |
| 26 | */ |
| 27 | public function get( $treeType, array $ids, $loadCallback ) { |
| 28 | $cacheKeys = []; |
| 29 | foreach ( $ids as $id ) { |
| 30 | if ( $id instanceof UUID ) { |
| 31 | $cacheId = $id; |
| 32 | } elseif ( is_scalar( $id ) ) { |
| 33 | $cacheId = UUID::create( $id ); |
| 34 | } else { |
| 35 | $type = get_debug_type( $id ); |
| 36 | throw new InvalidParameterException( "Not scalar: $type" ); |
| 37 | } |
| 38 | // @phan-suppress-next-line PhanTypeMismatchArgumentNullable |
| 39 | $cacheKeys[ TreeCacheKey::build( $treeType, $cacheId ) ] = $id; |
| 40 | } |
| 41 | return $this->getByKey( $cacheKeys, $loadCallback ); |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * @param array $cacheKeys |
| 46 | * @param callable $loadCallback |
| 47 | * @return array |
| 48 | */ |
| 49 | public function getByKey( array $cacheKeys, $loadCallback ) { |
| 50 | if ( !$cacheKeys ) { |
| 51 | return []; |
| 52 | } |
| 53 | $result = []; |
| 54 | $multiRes = $this->cache->getMulti( array_keys( $cacheKeys ) ); |
| 55 | // Memcached BagOStuff only returns found keys, but the redis bag |
| 56 | // returns false for not found keys. |
| 57 | $multiRes = array_filter( $multiRes, static fn ( $v ) => $v !== false ); |
| 58 | foreach ( $multiRes as $key => $value ) { |
| 59 | $idx = $cacheKeys[$key]; |
| 60 | if ( $idx instanceof UUID ) { |
| 61 | $idx = $idx->getAlphadecimal(); |
| 62 | } |
| 63 | $result[$idx] = $value; |
| 64 | unset( $cacheKeys[$key] ); |
| 65 | } |
| 66 | |
| 67 | if ( count( $cacheKeys ) === 0 ) { |
| 68 | return $result; |
| 69 | } |
| 70 | $res = $loadCallback( array_values( $cacheKeys ) ); |
| 71 | if ( !$res ) { |
| 72 | // storage failure of some sort |
| 73 | return $result; |
| 74 | } |
| 75 | $invCacheKeys = []; |
| 76 | foreach ( $cacheKeys as $cacheKey => $id ) { |
| 77 | if ( $id instanceof UUID ) { |
| 78 | $id = $id->getAlphadecimal(); |
| 79 | } |
| 80 | $invCacheKeys[$id] = $cacheKey; |
| 81 | } |
| 82 | foreach ( $res as $id => $row ) { |
| 83 | $this->cache->set( $invCacheKeys[$id], $row ); |
| 84 | $result[$id] = $row; |
| 85 | } |
| 86 | |
| 87 | return $result; |
| 88 | } |
| 89 | } |