95 lines
2.8 KiB
PHP
95 lines
2.8 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Copyright 2014
|
||
|
|
*
|
||
|
|
* 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 to create Config objects
|
||
|
|
*
|
||
|
|
* @since 1.23
|
||
|
|
*/
|
||
|
|
class ConfigFactory {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Map of config name => callback
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
protected $factoryFunctions = array();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Config objects that have already been created
|
||
|
|
* name => Config object
|
||
|
|
* @var array
|
||
|
|
*/
|
||
|
|
protected $configs = array();
|
||
|
|
|
||
|
|
public static function getDefaultInstance() {
|
||
|
|
static $self = null;
|
||
|
|
if ( !$self ) {
|
||
|
|
$self = new self;
|
||
|
|
global $wgConfigRegistry;
|
||
|
|
foreach ( $wgConfigRegistry as $name => $callback ) {
|
||
|
|
$self->register( $name, $callback );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $self;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Register a new config factory function
|
||
|
|
* Will override if it's already registered
|
||
|
|
* @param string $name
|
||
|
|
* @param callable $callback that takes this ConfigFactory as an argument
|
||
|
|
* @throws InvalidArgumentException if an invalid callback is provided
|
||
|
|
*/
|
||
|
|
public function register( $name, $callback ) {
|
||
|
|
if ( !is_callable( $callback ) ) {
|
||
|
|
throw new InvalidArgumentException( 'Invalid callback provided' );
|
||
|
|
}
|
||
|
|
$this->factoryFunctions[$name] = $callback;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a given Config using the registered callback for $name.
|
||
|
|
* If an object was already created, the same Config object is returned.
|
||
|
|
* @param string $name of the extension/component you want a Config object for
|
||
|
|
* 'main' is used for core
|
||
|
|
* @throws ConfigException if a factory function isn't registered for $name
|
||
|
|
* @throws UnexpectedValueException if the factory function returns a non-Config object
|
||
|
|
* @return Config
|
||
|
|
*/
|
||
|
|
public function makeConfig( $name ) {
|
||
|
|
if ( !isset( $this->configs[$name] ) ) {
|
||
|
|
if ( !isset( $this->factoryFunctions[$name] ) ) {
|
||
|
|
throw new ConfigException( "No registered builder available for $name." );
|
||
|
|
}
|
||
|
|
$conf = call_user_func( $this->factoryFunctions[$name], $this );
|
||
|
|
if ( $conf instanceof Config ) {
|
||
|
|
$this->configs[$name] = $conf;
|
||
|
|
} else {
|
||
|
|
throw new UnexpectedValueException( "The builder for $name returned a non-Config object." );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->configs[$name];
|
||
|
|
}
|
||
|
|
}
|