eb28edd84e
Add doc-typehints to class properties found by the PropertyDocumentation sniff to improve the documentation. Once the sniff is enabled it avoids that new code is missing type declarations. This is focused on documentation and does not change code. Change-Id: I73c413727a63d14efb5028b27128784c98724110
131 lines
3.3 KiB
PHP
131 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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/**
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* LocalisationCache optimised for loading many languages at once.
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*
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* Used by maintenance/rebuildLocalisationCache.php.
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*
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* @ingroup Language
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*/
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class LocalisationCacheBulkLoad extends LocalisationCache {
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/**
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* A cache for the contents of the data files.
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* Core files are serialized to avoid using ~1GB of RAM during a re-cache.
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* @var string[][]
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*/
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private $fileCache = [];
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/**
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* Most recently used languages. Uses the linked-list aspect of PHP hashtables
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* to keep the most recently used language codes at the end of the array, and
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* the language codes that are ready to be deleted at the beginning.
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* @var array<string,true>
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*/
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private $mruLangs = [];
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/**
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* Maximum number of languages that may be loaded into $this->data
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* @var int
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*/
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private $maxLoadedLangs = 10;
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/**
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* @param string $fileName
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* @param string $fileType
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* @return array|mixed
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*/
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protected function readPHPFile( $fileName, $fileType ) {
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$serialize = $fileType === 'core';
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if ( !isset( $this->fileCache[$fileName][$fileType] ) ) {
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$data = parent::readPHPFile( $fileName, $fileType );
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if ( $serialize ) {
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$encData = serialize( $data );
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} else {
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$encData = $data;
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}
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$this->fileCache[$fileName][$fileType] = $encData;
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return $data;
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} elseif ( $serialize ) {
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return unserialize( $this->fileCache[$fileName][$fileType] );
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} else {
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return $this->fileCache[$fileName][$fileType];
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}
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}
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/**
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* @param string $code
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* @param string $key
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* @return mixed
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*/
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public function getItem( $code, $key ) {
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unset( $this->mruLangs[$code] );
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$this->mruLangs[$code] = true;
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return parent::getItem( $code, $key );
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}
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/**
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* @param string $code
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* @param string $key
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* @param string $subkey
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* @return mixed
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*/
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public function getSubitem( $code, $key, $subkey ) {
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unset( $this->mruLangs[$code] );
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$this->mruLangs[$code] = true;
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return parent::getSubitem( $code, $key, $subkey );
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}
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/**
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* @param string $code
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*/
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public function recache( $code ) {
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parent::recache( $code );
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unset( $this->mruLangs[$code] );
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$this->mruLangs[$code] = true;
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$this->trimCache();
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}
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/**
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* @param string $code
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*/
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public function unload( $code ) {
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unset( $this->mruLangs[$code] );
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parent::unload( $code );
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}
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/**
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* Unload cached languages until there are less than $this->maxLoadedLangs
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*/
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protected function trimCache() {
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while ( count( $this->data ) > $this->maxLoadedLangs && count( $this->mruLangs ) ) {
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$code = array_key_first( $this->mruLangs );
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wfDebug( __METHOD__ . ": unloading $code" );
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$this->unload( $code );
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}
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}
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}
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