includes/Storage/BlobStoreFactory.php

   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 MediaWiki\Storage;
  22
  23 use Language;
  24 use MediaWiki\Config\ServiceOptions;
  25 use WANObjectCache;
  26 use Wikimedia\Rdbms\ILBFactory;
  27 use ExternalStoreAccess;
  28
  29 /**
  30  * Service for instantiating BlobStores
  31  *
  32  * This can be used to create BlobStore objects for other wikis.
  33  *
  34  * @since 1.31
  35  */
  36 class BlobStoreFactory {
  37
  38         /**
  39          * @var ILBFactory
  40          */
  41         private $lbFactory;
  42
  43         /**
  44          * @var ExternalStoreAccess
  45          */
  46         private $extStoreAccess;
  47
  48         /**
  49          * @var WANObjectCache
  50          */
  51         private $cache;
  52
  53         /**
  54          * @var ServiceOptions
  55          */
  56         private $options;
  57
  58         /**
  59          * @var Language
  60          */
  61         private $contLang;
  62
  63         /**
  64          * TODO Make this a const when HHVM support is dropped (T192166)
  65          *
  66          * @var array
  67          * @since 1.34
  68          */
  69         public static $constructorOptions = [
  70                 'CompressRevisions',
  71                 'DefaultExternalStore',
  72                 'LegacyEncoding',
  73                 'RevisionCacheExpiry',
  74         ];
  75
  76         public function __construct(
  77                 ILBFactory $lbFactory,
  78                 ExternalStoreAccess $extStoreAccess,
  79                 WANObjectCache $cache,
  80                 ServiceOptions $options,
  81                 Language $contLang
  82         ) {
  83                 $options->assertRequiredOptions( self::$constructorOptions );
  84
  85                 $this->lbFactory = $lbFactory;
  86                 $this->extStoreAccess = $extStoreAccess;
  87                 $this->cache = $cache;
  88                 $this->options = $options;
  89                 $this->contLang = $contLang;
  90         }
  91
  92         /**
  93          * @since 1.31
  94          *
  95          * @param bool|string $dbDomain The ID of the target wiki database. Use false for the local wiki.
  96          *
  97          * @return BlobStore
  98          */
  99         public function newBlobStore( $dbDomain = false ) {
 100                 return $this->newSqlBlobStore( $dbDomain );
 101         }
 102
 103         /**
 104          * @internal Please call newBlobStore and use the BlobStore interface.
 105          *
 106          * @param bool|string $dbDomain The ID of the target wiki database. Use false for the local wiki.
 107          *
 108          * @return SqlBlobStore
 109          */
 110         public function newSqlBlobStore( $dbDomain = false ) {
 111                 $lb = $this->lbFactory->getMainLB( $dbDomain );
 112                 $store = new SqlBlobStore(
 113                         $lb,
 114                         $this->extStoreAccess,
 115                         $this->cache,
 116                         $dbDomain
 117                 );
 118
 119                 $store->setCompressBlobs( $this->options->get( 'CompressRevisions' ) );
 120                 $store->setCacheExpiry( $this->options->get( 'RevisionCacheExpiry' ) );
 121                 $store->setUseExternalStore( $this->options->get( 'DefaultExternalStore' ) !== false );
 122
 123                 if ( $this->options->get( 'LegacyEncoding' ) ) {
 124                         $store->setLegacyEncoding( $this->options->get( 'LegacyEncoding' ), $this->contLang );
 125                 }
 126
 127                 return $store;
 128         }
 129
 130 }