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<?php |
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/** |
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* Webino™ (http://webino.sk) |
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* |
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* @link https://github.com/webino for the canonical source repository |
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* @copyright Copyright (c) 2015-2017 Webino, s.r.o. (http://webino.sk) |
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* @author Peter Bačinský <[email protected]> |
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* @license BSD-3-Clause |
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*/ |
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namespace WebinoAppLib\Service; |
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use WebinoAppLib\Application; |
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use WebinoAppLib\Event\AppEvent; |
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use WebinoAppLib\Feature\Config; |
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use WebinoAppLib\Log; |
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use WebinoConfigLib\Feature\ConfigCacheEnabled; |
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use Zend\ServiceManager\Config as ServicesConfig; |
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/** |
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* Application bootstrap |
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*/ |
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class Bootstrap |
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{ |
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/** |
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* Application configuration cache key |
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*/ |
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const CACHE_KEY = 'config'; |
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/** |
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* @var Application |
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*/ |
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private $app; |
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/** |
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* @var string |
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*/ |
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private $cacheKey; |
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/** |
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* @param object|Application $app |
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*/ |
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public function __construct(Application $app) |
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{ |
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$this->app = $app; |
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} |
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/** |
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* @return string |
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*/ |
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private function getCacheKey() |
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{ |
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return $this::CACHE_KEY . '_' . $this->cacheKey; |
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} |
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/** |
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* @param string $key |
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* @return $this |
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*/ |
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public function setCacheKey($key) |
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{ |
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$this->cacheKey .= md5($key); |
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return $this; |
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} |
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/** |
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* Configures the application |
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* |
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* Returns cached early if any. |
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* |
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* @triggers configure |
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* @return $this |
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*/ |
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public function configure() |
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{ |
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$config = $this->app->getConfig(); |
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$useCache = $this->app->getConfig(ConfigCacheEnabled::KEY); |
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if ($useCache) { |
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$cached = $this->app->getCache($this->getCacheKey()); |
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if ($cached) { |
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$this->app->setConfig($cached); |
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$this->configureServices(); |
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$this->app->log(Log\LoadCachedAppConfig::class); |
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return $this; |
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} |
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} |
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$this->app->emit(AppEvent::CONFIGURE, [], [$this->app, 'mergeConfig']); |
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$this->configureServices(); |
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$this->app->log(Log\ConfigureApp::class); |
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$useCache and $this->app->setCache($this->getCacheKey(), $config); |
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return $this; |
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} |
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/** |
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* Configure application services |
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* |
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* @return $this |
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*/ |
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protected function configureServices() |
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{ |
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$services = $this->app->getConfig(Config::SERVICES); |
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if (null === $services) { |
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return $this; |
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} |
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$config = $services->toArray(); |
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(new ServicesConfig($config))->configureServiceManager($this->app->getServices()); |
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return $this; |
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} |
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/** |
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* Attach core listeners |
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* |
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* @return $this |
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*/ |
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public function attachCoreListeners() |
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{ |
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$this->eachCoreListener([$this, 'attachListener']); |
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return $this; |
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} |
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/** |
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* Detach core listeners |
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* |
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* @return $this |
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*/ |
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public function detachCoreListeners() |
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{ |
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$this->eachCoreListener([$this, 'detachListener']); |
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return $this; |
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} |
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/** |
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* Attach application listeners |
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* |
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* @return $this |
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*/ |
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public function attachListeners() |
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{ |
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$this->eachListener([$this, 'attachListener']); |
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return $this; |
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} |
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/** |
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* @param $listener |
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*/ |
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protected function attachListener($listener) |
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{ |
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$service = $this->app->get($listener); |
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$service and $this->app->bind($service); |
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} |
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/** |
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* @param $listener |
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*/ |
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protected function detachListener($listener) |
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{ |
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$service = $this->app->get($listener); |
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$service and $this->app->unbind($service); |
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} |
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/** |
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* @param callable $callback |
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*/ |
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View Code Duplication |
protected function eachCoreListener(callable $callback) |
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{ |
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$listeners = $this->app->getCoreConfig(Config::LISTENERS); |
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if (empty($listeners)) { |
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return; |
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} |
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foreach ($listeners as $listener) { |
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call_user_func($callback, $listener); |
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} |
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} |
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/** |
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* @param callable $callback |
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*/ |
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View Code Duplication |
protected function eachListener(callable $callback) |
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{ |
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$listeners = $this->app->getConfig(Config::LISTENERS); |
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if (empty($listeners)) { |
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return; |
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} |
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foreach ($listeners as $listener) { |
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call_user_func($callback, $listener); |
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} |
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} |
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} |
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webino /
Webino
Loading history...
PHP has two types of connecting operators (logical operators, and boolean operators):
and&&or||The difference between these is the order in which they are executed. In most cases, you would want to use a boolean operator like
&&, or||.Let’s take a look at a few examples:
Logical Operators are used for Control-Flow
One case where you explicitly want to use logical operators is for control-flow such as this:
Since
dieintroduces problems of its own, f.e. it makes our code hardly testable, and prevents any kind of more sophisticated error handling; you probably do not want to use this in real-world code. Unfortunately, logical operators cannot be combined withthrowat this point:These limitations lead to logical operators rarely being of use in current PHP code.