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| 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 Wikimedia\EventRelayer; |
| 22 | |
| 23 | use UnexpectedValueException; |
| 24 | |
| 25 | /** |
| 26 | * Factory class for spawning EventRelayer objects using configuration |
| 27 | * |
| 28 | * @since 1.27 |
| 29 | */ |
| 30 | class EventRelayerGroup { |
| 31 | /** @var array[] */ |
| 32 | protected $configByChannel = []; |
| 33 | |
| 34 | /** @var EventRelayer[] */ |
| 35 | protected $relayers = []; |
| 36 | |
| 37 | /** |
| 38 | * @param array[] $config Channel configuration |
| 39 | */ |
| 40 | public function __construct( array $config ) { |
| 41 | $this->configByChannel = $config; |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * @param string $channel |
| 46 | * @return EventRelayer Relayer instance that handles the given channel |
| 47 | */ |
| 48 | public function getRelayer( $channel ) { |
| 49 | $channelKey = isset( $this->configByChannel[$channel] ) |
| 50 | ? $channel |
| 51 | : 'default'; |
| 52 | |
| 53 | if ( !isset( $this->relayers[$channelKey] ) ) { |
| 54 | if ( !isset( $this->configByChannel[$channelKey] ) ) { |
| 55 | throw new UnexpectedValueException( "No config for '$channelKey'" ); |
| 56 | } |
| 57 | |
| 58 | $config = $this->configByChannel[$channelKey]; |
| 59 | $class = $config['class']; |
| 60 | |
| 61 | $this->relayers[$channelKey] = new $class( $config ); |
| 62 | } |
| 63 | |
| 64 | return $this->relayers[$channelKey]; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | /** @deprecated class alias since 1.41 */ |
| 69 | class_alias( EventRelayerGroup::class, 'EventRelayerGroup' ); |