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1 | <?php |
2 | /** |
3 | * This program is free software; you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by |
5 | * the Free Software Foundation; either version 2 of the License, or |
6 | * (at your option) any later version. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
16 | * http://www.gnu.org/copyleft/gpl.html |
17 | * |
18 | * @file |
19 | */ |
20 | |
21 | namespace Wikimedia\DependencyStore; |
22 | |
23 | use BagOStuff; |
24 | use InvalidArgumentException; |
25 | |
26 | /** |
27 | * Track per-module file dependencies in object cache via BagOStuff. |
28 | * |
29 | * @see $wgResourceLoaderUseObjectCacheForDeps |
30 | * @internal For use by ResourceLoader\Module only |
31 | * @since 1.35 |
32 | */ |
33 | class KeyValueDependencyStore extends DependencyStore { |
34 | /** @var BagOStuff */ |
35 | private $stash; |
36 | |
37 | /** |
38 | * @param BagOStuff $stash Storage backend |
39 | */ |
40 | public function __construct( BagOStuff $stash ) { |
41 | $this->stash = $stash; |
42 | } |
43 | |
44 | public function retrieveMulti( $type, array $entities ) { |
45 | $entitiesByKey = []; |
46 | foreach ( $entities as $entity ) { |
47 | $entitiesByKey[$this->getStoreKey( $type, $entity )] = $entity; |
48 | } |
49 | |
50 | $blobsByKey = $this->stash->getMulti( array_keys( $entitiesByKey ) ); |
51 | |
52 | $results = []; |
53 | foreach ( $entitiesByKey as $key => $entity ) { |
54 | $blob = $blobsByKey[$key] ?? null; |
55 | $data = is_string( $blob ) ? json_decode( $blob, true ) : null; |
56 | $results[$entity] = $this->newEntityDependencies( |
57 | $data[self::KEY_PATHS] ?? [], |
58 | $data[self::KEY_AS_OF] ?? null |
59 | ); |
60 | } |
61 | |
62 | return $results; |
63 | } |
64 | |
65 | public function storeMulti( $type, array $dataByEntity, $ttl ) { |
66 | $blobsByKey = []; |
67 | foreach ( $dataByEntity as $entity => $data ) { |
68 | if ( !is_array( $data[self::KEY_PATHS] ) || !is_int( $data[self::KEY_AS_OF] ) ) { |
69 | throw new InvalidArgumentException( "Invalid entry for '$entity'" ); |
70 | } |
71 | |
72 | // Normalize the list by removing duplicates and sorting |
73 | $data[self::KEY_PATHS] = array_values( array_unique( $data[self::KEY_PATHS] ) ); |
74 | sort( $data[self::KEY_PATHS], SORT_STRING ); |
75 | |
76 | $blob = json_encode( $data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE ); |
77 | $blobsByKey[$this->getStoreKey( $type, $entity )] = $blob; |
78 | } |
79 | |
80 | if ( $blobsByKey ) { |
81 | $this->stash->setMulti( $blobsByKey, $ttl, BagOStuff::WRITE_BACKGROUND ); |
82 | } |
83 | } |
84 | |
85 | public function remove( $type, $entities ) { |
86 | $keys = []; |
87 | foreach ( (array)$entities as $entity ) { |
88 | $keys[] = $this->getStoreKey( $type, $entity ); |
89 | } |
90 | |
91 | if ( $keys ) { |
92 | $this->stash->deleteMulti( $keys, BagOStuff::WRITE_BACKGROUND ); |
93 | } |
94 | } |
95 | |
96 | /** |
97 | * @param string $type |
98 | * @param string $entity |
99 | * @return string |
100 | */ |
101 | private function getStoreKey( $type, $entity ) { |
102 | return $this->stash->makeKey( "{$type}-dependencies", $entity ); |
103 | } |
104 | } |