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<?php |
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/** |
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* Contains the class controlling the references and creating necessary helper objects. |
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* |
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* @copyright (C) 2018, Tobias Oetterer, Paderborn University |
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* @license https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License, version 3 (or later) |
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* |
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* This file is part of the MediaWiki extension BootstrapComponents. |
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* The BootstrapComponents extension is free software: you can redistribute it |
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* and/or modify it under the terms of the GNU General Public License as published |
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* by the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* The BootstrapComponents extension is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <https://www.gnu.org/licenses/>. |
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* |
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* @file |
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* @ingroup BootstrapComponents |
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* @author Tobias Oetterer |
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*/ |
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namespace BootstrapComponents; |
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use MediaWiki\Logger\LoggerFactory; |
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use MWException; |
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use ReflectionClass; |
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/** |
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* Class ApplicationFactory |
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* |
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* Manages access to application classes. |
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* |
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* @since 1.0 |
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*/ |
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class ApplicationFactory { |
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/** |
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* @var ApplicationFactory $instance |
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*/ |
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private static $instance = null; |
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/** |
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* Holds the application singletons |
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* |
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* @var array $applicationStore |
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*/ |
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private $applicationStore; |
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/** |
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* Library, that tells the ApplicationFactory, which class to use to instantiate which application |
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* |
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* @var array $applicationClassRegister |
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*/ |
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private $applicationClassRegister; |
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/** |
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* @var \Psr\Log\LoggerInterface $logger |
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*/ |
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private $logger; |
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/** |
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* Returns the singleton instance |
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* |
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* @return ApplicationFactory |
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*/ |
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public static function getInstance() { |
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if ( self::$instance !== null ) { |
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return self::$instance; |
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} |
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return self::$instance = new self(); |
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} |
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/** |
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* ApplicationFactory constructor. |
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* |
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* Do not instantiate directly, but use {@see ApplicationFactory::getInstance} |
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* instead. |
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* |
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* @see ApplicationFactory::getInstance |
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*/ |
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public function __construct() { |
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$this->applicationStore = []; |
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$this->applicationClassRegister = $this->getApplicationClassRegister(); |
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$this->getLogger()->info( 'ApplicationFactory was build!' ); |
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} |
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/** |
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* @param null|bool|array $componentWhiteList |
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* |
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* @throws MWException cascading {@see \BootstrapComponents\ApplicationFactory::getApplication} |
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* |
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* @return ComponentLibrary |
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*/ |
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public function getComponentLibrary( $componentWhiteList = null ) { |
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return $this->getApplication( 'ComponentLibrary', $componentWhiteList ); |
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} |
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/** |
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* @throws MWException cascading {@see \BootstrapComponents\ApplicationFactory::getApplication} |
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* |
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* @return NestingController |
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*/ |
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public function getNestingController() { |
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return $this->getApplication( 'NestingController' ); |
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} |
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/** |
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* @param string[] $validAttributes |
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* @param string[] $aliases |
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* |
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* @see AttributeManager::__construct |
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* |
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* @return AttributeManager |
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*/ |
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public function getNewAttributeManager( $validAttributes, $aliases ) { |
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return new AttributeManager( $validAttributes, $aliases ); |
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} |
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/** |
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* @param string $id |
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* @param string $trigger must be safe raw html (best run through {@see Parser::recursiveTagParse}) |
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* @param string $content must be safe raw html (best run through {@see Parser::recursiveTagParse}) |
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* @param ParserOutputHelper $parserOutputHelper |
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* |
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* @see ModalBuilder::__construct |
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* |
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* @return ModalBuilder |
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*/ |
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public function getNewModalBuilder( $id, $trigger, $content, $parserOutputHelper ) { |
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return new ModalBuilder( $id, $trigger, $content, $parserOutputHelper ); |
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} |
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/** |
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* @param array $argumentsPassedByParser |
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* @param bool $isParserFunction |
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* @param string $componentName |
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* |
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* @see ParserRequest::__construct |
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* |
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* @throws \MWException cascading {@see ParserRequest::__construct} |
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* |
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* @return ParserRequest |
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*/ |
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public function getNewParserRequest( $argumentsPassedByParser, $isParserFunction, $componentName = 'unknown' ) { |
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return new ParserRequest( $argumentsPassedByParser, $isParserFunction, $componentName ); |
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} |
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/** |
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* @param \Parser $parser |
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* |
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* @see ParserOutputHelper |
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* |
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* @throws MWException cascading {@see \BootstrapComponents\ApplicationFactory::getApplication} |
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* |
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* @return ParserOutputHelper |
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*/ |
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public function getParserOutputHelper( $parser = null ) { |
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if ( $parser === null ) { |
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$parser = $GLOBALS['wgParser']; |
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} |
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return $this->getApplication( 'ParserOutputHelper', $parser ); |
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} |
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/** |
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* Registers an application with the ApplicationFactory. |
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* |
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* @param string $name |
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* @param string $class |
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* |
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* @throws MWException when class to register does not exist |
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* |
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* @return bool |
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*/ |
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public function registerApplication( $name, $class ) { |
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$application = trim( $name ); |
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$applicationClass = trim( $class ); |
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if ( $application != '' && class_exists( $applicationClass ) ) { |
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$this->applicationClassRegister[$application] = $applicationClass; |
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return true; |
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} elseif ( $application != '' ) { |
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throw new MWException( 'ApplicationFactory was requested to register non existing class "' . $applicationClass . '"!' ); |
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} |
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$this->getLogger()->error( 'ApplicationFactory was requested to register invalid application for class ' . $applicationClass . '!' ); |
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return false; |
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} |
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/** |
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* Resets the application $application (or all, if $application is null), so that the next call to |
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* {@see ApplicationFactory::getApplication} will create a new object. |
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* |
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* @param null|string $application |
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* |
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* @return bool |
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*/ |
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public function resetLookup( $application = null ) { |
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if ( is_null( $application ) ) { |
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$this->applicationStore = []; |
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return true; |
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} elseif ( isset( $this->applicationStore[$application] ) ) { |
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unset( $this->applicationStore[$application] ); |
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return true; |
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} |
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return false; |
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} |
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/** |
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* This returns the application $name. Creates a new instance and stores the singleton, if not already in store. |
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* You can supply any number of additional arguments to this function, they will be passed to the constructor. |
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* |
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* @param string $name |
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* |
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* @throws MWException when no class is registered for the requested application or the creation of the object fails. |
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* |
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* @return mixed|object |
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*/ |
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protected function getApplication( $name ) { |
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if ( isset( $this->applicationStore[$name] ) ) { |
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return $this->applicationStore[$name]; |
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} |
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if ( !isset( $this->applicationClassRegister[$name] ) ) { |
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throw new MWException( 'ApplicationFactory was requested to return application "' . $name . '". No appropriate class registered!' ); |
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} |
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$args = func_get_args(); |
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array_shift( $args ); # because, we already used the first argument $name |
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try { |
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$objectReflection = new ReflectionClass( $this->applicationClassRegister[$name] ); |
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} catch ( \ReflectionException $e ) { |
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throw new MWException( 'Error while trying to build application "' . $name . '" with class ' . $this->applicationClassRegister[$name] ); |
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} |
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$this->getLogger()->info( 'ApplicationFactory successfully build application ' . $name ); |
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return $this->applicationStore[$name] = $objectReflection->newInstanceArgs( $args ); |
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} |
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/** |
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* @return array |
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*/ |
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protected function getApplicationClassRegister() { |
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return [ |
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'ComponentLibrary' => 'BootstrapComponents\\ComponentLibrary', |
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'NestingController' => 'BootstrapComponents\\NestingController', |
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'ParserOutputHelper' => 'BootstrapComponents\\ParserOutputHelper', |
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]; |
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} |
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/** |
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* @return \Psr\Log\LoggerInterface |
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*/ |
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protected function getLogger() { |
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if ( !empty( $this->logger ) ) { |
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return $this->logger; |
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} |
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return $this->logger = LoggerFactory::getInstance( 'BootstrapComponents' ); |
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} |
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} |
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