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KeyValueDependencyStore.php
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KeyValueDependencyStore.php
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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace Wikimedia\DependencyStore;
use InvalidArgumentException;
use Wikimedia\ObjectCache\BagOStuff;
/**
* Track per-module file dependencies in object cache via BagOStuff.
*
* @see $wgResourceLoaderUseObjectCacheForDeps
* @internal For use by ResourceLoader\Module only
* @since 1.35
*/
class KeyValueDependencyStore extends DependencyStore {
/** @var BagOStuff */
private $stash;
/**
* @param BagOStuff $stash Storage backend
*/
public function __construct( BagOStuff $stash ) {
$this->stash = $stash;
}
public function retrieveMulti( $type, array $entities ) {
$entitiesByKey = [];
foreach ( $entities as $entity ) {
$entitiesByKey[$this->getStoreKey( $type, $entity )] = $entity;
}
$blobsByKey = $this->stash->getMulti( array_keys( $entitiesByKey ) );
$results = [];
foreach ( $entitiesByKey as $key => $entity ) {
$blob = $blobsByKey[$key] ?? null;
$data = is_string( $blob ) ? json_decode( $blob, true ) : null;
$results[$entity] = $this->newEntityDependencies(
$data[self::KEY_PATHS] ?? [],
$data[self::KEY_AS_OF] ?? null
);
}
return $results;
}
public function storeMulti( $type, array $dataByEntity, $ttl ) {
$blobsByKey = [];
foreach ( $dataByEntity as $entity => $data ) {
if ( !is_array( $data[self::KEY_PATHS] ) || !is_int( $data[self::KEY_AS_OF] ) ) {
throw new InvalidArgumentException( "Invalid entry for '$entity'" );
}
// Normalize the list by removing duplicates and sorting
$data[self::KEY_PATHS] = array_values( array_unique( $data[self::KEY_PATHS] ) );
sort( $data[self::KEY_PATHS], SORT_STRING );
$blob = json_encode( $data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE );
$blobsByKey[$this->getStoreKey( $type, $entity )] = $blob;
}
if ( $blobsByKey ) {
$this->stash->setMulti( $blobsByKey, $ttl, BagOStuff::WRITE_BACKGROUND );
}
}
public function remove( $type, $entities ) {
$keys = [];
foreach ( (array)$entities as $entity ) {
$keys[] = $this->getStoreKey( $type, $entity );
}
if ( $keys ) {
$this->stash->deleteMulti( $keys, BagOStuff::WRITE_BACKGROUND );
}
}
/**
* @param string $type
* @param string $entity
* @return string
*/
private function getStoreKey( $type, $entity ) {
return $this->stash->makeKey( "{$type}-dependencies", $entity );
}
}

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Sat, Oct 3, 21:19 (1 w, 16 h ago)
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KeyValueDependencyStore.php (3 KB)

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