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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\IPInfo\InfoRetriever; |
| 4 | |
| 5 | use Exception; |
| 6 | use GeoIp2\Database\Reader; |
| 7 | |
| 8 | class ReaderFactory { |
| 9 | |
| 10 | /** @var Reader[] Map of filename to the Reader object */ |
| 11 | private $readers = []; |
| 12 | |
| 13 | /** |
| 14 | * @param string $path |
| 15 | * @param string $filename |
| 16 | * @return Reader|null null if the file path or file is invalid |
| 17 | */ |
| 18 | public function get( string $path, string $filename ): ?Reader { |
| 19 | if ( isset( $this->readers[$filename] ) ) { |
| 20 | return $this->readers[$filename]; |
| 21 | } |
| 22 | try { |
| 23 | $reader = $this->getReader( $path . $filename ); |
| 24 | } catch ( Exception $e ) { |
| 25 | return null; |
| 26 | } |
| 27 | |
| 28 | $this->readers[$filename] = $reader; |
| 29 | |
| 30 | return $this->readers[$filename]; |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * @param string $filename |
| 35 | * @return Reader |
| 36 | * @throws Exception |
| 37 | */ |
| 38 | protected function getReader( $filename ) { |
| 39 | return new Reader( $filename ); |
| 40 | } |
| 41 | } |