includes/site/SitesCacheFileBuilder.php

   1 <?php
   2
   3 /**
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  * http://www.gnu.org/copyleft/gpl.html
  18  *
  19  * @since 1.25
  20  *
  21  * @file
  22  *
  23  * @license GNU GPL v2+
  24  */
  25 class SitesCacheFileBuilder {
  26
  27         /**
  28          * @var SiteLookup
  29          */
  30         private $siteLookup;
  31
  32         /**
  33          * @var string
  34          */
  35         private $cacheFile;
  36
  37         /**
  38          * @param SiteLookup $siteLookup
  39          * @param string $cacheFile
  40          */
  41         public function __construct( SiteLookup $siteLookup, $cacheFile ) {
  42                 $this->siteLookup = $siteLookup;
  43                 $this->cacheFile = $cacheFile;
  44         }
  45
  46         public function build() {
  47                 $this->sites = $this->siteLookup->getSites();
  48                 $this->cacheSites( $this->sites->getArrayCopy() );
  49         }
  50
  51         /**
  52          * @param Site[] $sites
  53          *
  54          * @throws MWException if in manualRecache mode
  55          * @return bool
  56          */
  57         private function cacheSites( array $sites ) {
  58                 $sitesArray = array();
  59
  60                 foreach ( $sites as $site ) {
  61                         $globalId = $site->getGlobalId();
  62                         $sitesArray[$globalId] = $this->getSiteAsArray( $site );
  63                 }
  64
  65                 $json = json_encode( array(
  66                         'sites' => $sitesArray
  67                 ) );
  68
  69                 $result = file_put_contents( $this->cacheFile, $json );
  70
  71                 return $result !== false;
  72         }
  73
  74         /**
  75          * @param Site $site
  76          *
  77          * @return array
  78          */
  79         private function getSiteAsArray( Site $site ) {
  80                 $siteEntry = unserialize( $site->serialize() );
  81                 $siteIdentifiers = $this->buildLocalIdentifiers( $site );
  82                 $identifiersArray = array();
  83
  84                 foreach ( $siteIdentifiers as $identifier ) {
  85                         $identifiersArray[] = $identifier;
  86                 }
  87
  88                 $siteEntry['identifiers'] = $identifiersArray;
  89
  90                 return $siteEntry;
  91         }
  92
  93         /**
  94          * @param Site $site
  95          *
  96          * @return array Site local identifiers
  97          */
  98         private function buildLocalIdentifiers( Site $site ) {
  99                 $localIds = array();
 100
 101                 foreach ( $site->getLocalIds() as $idType => $ids ) {
 102                         foreach ( $ids as $id ) {
 103                                 $localIds[] = array(
 104                                         'type' => $idType,
 105                                         'key' => $id
 106                                 );
 107                         }
 108                 }
 109
 110                 return $localIds;
 111         }
 112
 113 }