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| 1 | <?php |
| 2 | /** |
| 3 | * Generates harvest files for the MathWebSearch Deamon. |
| 4 | * Example: php CreateMathIndex.php ~/mws_harvest_files |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License along |
| 17 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 19 | * http://www.gnu.org/copyleft/gpl.html |
| 20 | * |
| 21 | * @ingroup Maintenance |
| 22 | */ |
| 23 | |
| 24 | use MediaWiki\MediaWikiServices; |
| 25 | |
| 26 | require_once __DIR__ . '/IndexBase.php'; |
| 27 | |
| 28 | /** |
| 29 | * @author Moritz Schubotz |
| 30 | */ |
| 31 | class GenerateWorkload extends IndexBase { |
| 32 | |
| 33 | /** @var int */ |
| 34 | private $id = 0; |
| 35 | /** @var int */ |
| 36 | private $selectivity = PHP_INT_MAX; |
| 37 | |
| 38 | public function __construct() { |
| 39 | parent::__construct(); |
| 40 | $this->addDescription( 'Generates a workload of sample queries.' ); |
| 41 | $this->addOption( 'selectivity', 'Specifies the selectivity for each individual equation', |
| 42 | false, true, 'S' ); |
| 43 | $this->addOption( |
| 44 | 'lastId', |
| 45 | 'Specifies to start the ID counter after the given id. ' . |
| 46 | 'For example \'-l 1\' would start with id 2.', |
| 47 | false, true, 'l' |
| 48 | ); |
| 49 | $this->addOption( 'overwrite', 'Overwrite existing draft queries ', false, false, "o" ); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * @param stdClass $row |
| 54 | * |
| 55 | * @return string |
| 56 | */ |
| 57 | protected function generateIndexString( $row ) { |
| 58 | if ( mt_rand() <= $this->selectivity ) { |
| 59 | $q = MathQueryObject::newQueryFromEquationRow( $row, ++$this->id ); |
| 60 | $q->saveToDatabase( $this->getOption( 'overwrite', false ) ); |
| 61 | $out = $q->exportTexDocument(); |
| 62 | if ( $out == false ) { |
| 63 | echo 'problem with ' . var_export( $q, true ) . "\n"; |
| 64 | $out = ''; |
| 65 | } |
| 66 | return $out; |
| 67 | } else { |
| 68 | return ''; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | public function execute() { |
| 73 | $i = 0; |
| 74 | $inc = $this->getArg( 1, 100 ); |
| 75 | $this->id = $this->getOption( 'lastId', 0 ); |
| 76 | $sel = $this->getOption( 'selectivity', 0.1 ); |
| 77 | $this->selectivity = (int)( $sel * mt_getrandmax() ); |
| 78 | $db = MediaWikiServices::getInstance() |
| 79 | ->getConnectionProvider() |
| 80 | ->getReplicaDatabase(); |
| 81 | echo "getting list of all equations from the database\n"; |
| 82 | $this->res = |
| 83 | $db->select( [ 'mathindex' ], |
| 84 | [ 'mathindex_revision_id', 'mathindex_anchor', 'mathindex_inputhash' ], true, |
| 85 | __METHOD__, [ |
| 86 | 'LIMIT' => $this->getOption( 'limit', (int)( 100 / $sel ) ), |
| 87 | 'ORDER BY' => 'mathindex_inputhash' |
| 88 | ] ); |
| 89 | do { |
| 90 | $fn = $this->getArg( 0 ) . '/math' . sprintf( '%012d', $i ) . '.tex'; |
| 91 | $res = $this->wFile( $fn, $i, $inc ); |
| 92 | $i += $inc; |
| 93 | } while ( $res ); |
| 94 | echo "last id used: {$this->id}\n"; |
| 95 | echo ( 'done' ); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | $maintClass = GenerateWorkload::class; |
| 100 | /** @noinspection PhpIncludeInspection */ |
| 101 | require_once RUN_MAINTENANCE_IF_MAIN; |