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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
/**
* Factory class for spawning EventRelayer objects using configuration
*
* @since 1.27
*/
class EventRelayerGroup {
/** @var array[] */
protected $configByChannel = [];
/** @var EventRelayer[] */
protected $relayers = [];
/**
* @param array[] $config Channel configuration
*/
public function __construct( array $config ) {
$this->configByChannel = $config;
}
/**
* @param string $channel
* @return EventRelayer Relayer instance that handles the given channel
*/
public function getRelayer( $channel ) {
$channelKey = isset( $this->configByChannel[$channel] )
? $channel
: 'default';
if ( !isset( $this->relayers[$channelKey] ) ) {
if ( !isset( $this->configByChannel[$channelKey] ) ) {
throw new UnexpectedValueException( "No config for '$channelKey'" );
}
$config = $this->configByChannel[$channelKey];
$class = $config['class'];
$this->relayers[$channelKey] = new $class( $config );
}
return $this->relayers[$channelKey];
}
}
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