101 lines
3.3 KiB
PHP
101 lines
3.3 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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namespace Wikimedia\DependencyStore;
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/**
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* Track per-module dependency file paths that are expensive to mass compute
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*
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* @internal For use by ResourceLoader\Module only
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*/
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abstract class DependencyStore {
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protected const KEY_PATHS = 'paths';
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protected const KEY_AS_OF = 'asOf';
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/**
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* @param string[] $paths List of dependency paths
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* @param int|null $asOf UNIX timestamp or null
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* @return array
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*/
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public function newEntityDependencies( array $paths = [], $asOf = null ) {
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return [ self::KEY_PATHS => $paths, self::KEY_AS_OF => $asOf ];
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}
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/**
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* Get the currently tracked dependencies for an entity
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*
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* The "paths" field contains a sorted list of unique paths
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*
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* The "asOf" field reflects the last-modified timestamp of the dependency data itself.
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* It will be null if there is no tracking data available. Note that if empty path lists
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* are never stored (as an optimisation) then it will not be possible to discern whether
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* the result is up-to-date.
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*
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* @param string $type Entity type
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* @param string $entity Entity name
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* @return array Map of (paths: paths, asOf: UNIX timestamp or null)
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*/
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final public function retrieve( $type, $entity ) {
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return $this->retrieveMulti( $type, [ $entity ] )[$entity];
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}
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/**
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* Get the currently tracked dependencies for a set of entities
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*
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* @see KeyValueDependencyStore::retrieve()
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* @param string $type Entity type
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* @param string[] $entities Entity names
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* @return array[] Map of (entity => (paths: paths, asOf: UNIX timestamp or null))
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*/
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abstract public function retrieveMulti( $type, array $entities );
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/**
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* Set the currently tracked dependencies for an entity
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*
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* @param string $type Entity type
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* @param string $entity Entity name
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* @param array $data Map of (paths: paths, asOf: UNIX timestamp or null)
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* @param int $ttl New time-to-live in seconds
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*/
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final public function store( $type, $entity, array $data, $ttl ) {
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$this->storeMulti( $type, [ $entity => $data ], $ttl );
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}
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/**
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* Set the currently tracked dependencies for a set of entities
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*
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* @see KeyValueDependencyStore::store()
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* @param string $type Entity type
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* @param array[] $dataByEntity Map of (entity => (paths: paths, asOf: UNIX timestamp or null))
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* @param int $ttl New time-to-live in seconds
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*
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*/
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abstract public function storeMulti( $type, array $dataByEntity, $ttl );
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/**
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* Delete the currently tracked dependencies for an entity or set of entities
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*
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* @param string $type Entity type
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* @param string|string[] $entities Entity name(s)
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*/
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abstract public function remove( $type, $entities );
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}
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