rob006 /
yii2-dev
Complex classes like Application often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Application, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 49 | abstract class Application extends Module |
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| 50 | { |
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| 51 | /** |
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| 52 | * @event Event an event raised before the application starts to handle a request. |
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| 53 | */ |
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| 54 | const EVENT_BEFORE_REQUEST = 'beforeRequest'; |
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| 55 | /** |
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| 56 | * @event Event an event raised after the application successfully handles a request (before the response is sent out). |
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| 57 | */ |
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| 58 | const EVENT_AFTER_REQUEST = 'afterRequest'; |
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| 59 | /** |
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| 60 | * Application state used by [[state]]: application just started. |
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| 61 | */ |
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| 62 | const STATE_BEGIN = 0; |
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| 63 | /** |
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| 64 | * Application state used by [[state]]: application is initializing. |
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| 65 | */ |
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| 66 | const STATE_INIT = 1; |
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| 67 | /** |
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| 68 | * Application state used by [[state]]: application is triggering [[EVENT_BEFORE_REQUEST]]. |
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| 69 | */ |
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| 70 | const STATE_BEFORE_REQUEST = 2; |
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| 71 | /** |
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| 72 | * Application state used by [[state]]: application is handling the request. |
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| 73 | */ |
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| 74 | const STATE_HANDLING_REQUEST = 3; |
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| 75 | /** |
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| 76 | * Application state used by [[state]]: application is triggering [[EVENT_AFTER_REQUEST]].. |
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| 77 | */ |
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| 78 | const STATE_AFTER_REQUEST = 4; |
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| 79 | /** |
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| 80 | * Application state used by [[state]]: application is about to send response. |
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| 81 | */ |
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| 82 | const STATE_SENDING_RESPONSE = 5; |
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| 83 | /** |
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| 84 | * Application state used by [[state]]: application has ended. |
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| 85 | */ |
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| 86 | const STATE_END = 6; |
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| 87 | |||
| 88 | /** |
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| 89 | * @var string the namespace that controller classes are located in. |
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| 90 | * This namespace will be used to load controller classes by prepending it to the controller class name. |
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| 91 | * The default namespace is `app\controllers`. |
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| 92 | * |
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| 93 | * Please refer to the [guide about class autoloading](guide:concept-autoloading.md) for more details. |
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| 94 | */ |
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| 95 | public $controllerNamespace = 'app\\controllers'; |
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| 96 | /** |
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| 97 | * @var string the application name. |
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| 98 | */ |
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| 99 | public $name = 'My Application'; |
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| 100 | /** |
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| 101 | * @var string the charset currently used for the application. |
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| 102 | */ |
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| 103 | public $charset = 'UTF-8'; |
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| 104 | /** |
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| 105 | * @var string the language that is meant to be used for end users. It is recommended that you |
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| 106 | * use [IETF language tags](http://en.wikipedia.org/wiki/IETF_language_tag). For example, `en` stands |
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| 107 | * for English, while `en-US` stands for English (United States). |
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| 108 | * @see sourceLanguage |
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| 109 | */ |
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| 110 | public $language = 'en-US'; |
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| 111 | /** |
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| 112 | * @var string the language that the application is written in. This mainly refers to |
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| 113 | * the language that the messages and view files are written in. |
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| 114 | * @see language |
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| 115 | */ |
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| 116 | public $sourceLanguage = 'en-US'; |
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| 117 | /** |
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| 118 | * @var Controller the currently active controller instance |
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| 119 | */ |
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| 120 | public $controller; |
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| 121 | /** |
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| 122 | * @var string|bool the layout that should be applied for views in this application. Defaults to 'main'. |
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| 123 | * If this is false, layout will be disabled. |
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| 124 | */ |
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| 125 | public $layout = 'main'; |
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| 126 | /** |
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| 127 | * @var string the requested route |
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| 128 | */ |
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| 129 | public $requestedRoute; |
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| 130 | /** |
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| 131 | * @var Action the requested Action. If null, it means the request cannot be resolved into an action. |
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| 132 | */ |
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| 133 | public $requestedAction; |
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| 134 | /** |
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| 135 | * @var array the parameters supplied to the requested action. |
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| 136 | */ |
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| 137 | public $requestedParams; |
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| 138 | /** |
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| 139 | * @var array list of installed Yii extensions. Each array element represents a single extension |
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| 140 | * with the following structure: |
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| 141 | * |
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| 142 | * ```php |
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| 143 | * [ |
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| 144 | * 'name' => 'extension name', |
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| 145 | * 'version' => 'version number', |
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| 146 | * 'bootstrap' => 'BootstrapClassName', // optional, may also be a configuration array |
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| 147 | * 'alias' => [ |
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| 148 | * '@alias1' => 'to/path1', |
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| 149 | * '@alias2' => 'to/path2', |
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| 150 | * ], |
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| 151 | * ] |
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| 152 | * ``` |
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| 153 | * |
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| 154 | * The "bootstrap" class listed above will be instantiated during the application |
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| 155 | * [[bootstrap()|bootstrapping process]]. If the class implements [[BootstrapInterface]], |
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| 156 | * its [[BootstrapInterface::bootstrap()|bootstrap()]] method will be also be called. |
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| 157 | * |
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| 158 | * If not set explicitly in the application config, this property will be populated with the contents of |
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| 159 | * `@vendor/yiisoft/extensions.php`. |
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| 160 | */ |
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| 161 | public $extensions; |
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| 162 | /** |
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| 163 | * @var array list of components that should be run during the application [[bootstrap()|bootstrapping process]]. |
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| 164 | * |
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| 165 | * Each component may be specified in one of the following formats: |
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| 166 | * |
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| 167 | * - an application component ID as specified via [[components]]. |
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| 168 | * - a module ID as specified via [[modules]]. |
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| 169 | * - a class name. |
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| 170 | * - a configuration array. |
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| 171 | * - a Closure |
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| 172 | * |
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| 173 | * During the bootstrapping process, each component will be instantiated. If the component class |
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| 174 | * implements [[BootstrapInterface]], its [[BootstrapInterface::bootstrap()|bootstrap()]] method |
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| 175 | * will be also be called. |
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| 176 | */ |
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| 177 | public $bootstrap = []; |
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| 178 | /** |
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| 179 | * @var int the current application state during a request handling life cycle. |
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| 180 | * This property is managed by the application. Do not modify this property. |
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| 181 | */ |
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| 182 | public $state; |
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| 183 | /** |
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| 184 | * @var array list of loaded modules indexed by their class names. |
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| 185 | */ |
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| 186 | public $loadedModules = []; |
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| 187 | |||
| 188 | |||
| 189 | /** |
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| 190 | * Constructor. |
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| 191 | * @param array $config name-value pairs that will be used to initialize the object properties. |
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| 192 | * Note that the configuration must contain both [[id]] and [[basePath]]. |
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| 193 | * @throws InvalidConfigException if either [[id]] or [[basePath]] configuration is missing. |
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| 194 | */ |
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| 195 | 2775 | public function __construct($config = []) |
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| 208 | |||
| 209 | /** |
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| 210 | * Pre-initializes the application. |
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| 211 | * This method is called at the beginning of the application constructor. |
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| 212 | * It initializes several important application properties. |
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| 213 | * If you override this method, please make sure you call the parent implementation. |
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| 214 | * @param array $config the application configuration |
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| 215 | * @throws InvalidConfigException if either [[id]] or [[basePath]] configuration is missing. |
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| 216 | */ |
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| 217 | 2775 | public function preInit(&$config) |
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| 266 | |||
| 267 | /** |
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| 268 | * @inheritdoc |
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| 269 | */ |
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| 270 | 2775 | public function init() |
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| 275 | |||
| 276 | /** |
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| 277 | * Initializes extensions and executes bootstrap components. |
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| 278 | * This method is called by [[init()]] after the application has been fully configured. |
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| 279 | * If you override this method, make sure you also call the parent implementation. |
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| 280 | */ |
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| 281 | 2775 | protected function bootstrap() |
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| 333 | |||
| 334 | /** |
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| 335 | * Registers the errorHandler component as a PHP error handler. |
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| 336 | * @param array $config application config |
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| 337 | */ |
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| 338 | 2775 | protected function registerErrorHandler(&$config) |
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| 350 | |||
| 351 | /** |
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| 352 | * Returns an ID that uniquely identifies this module among all modules within the current application. |
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| 353 | * Since this is an application instance, it will always return an empty string. |
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| 354 | * @return string the unique ID of the module. |
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| 355 | */ |
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| 356 | 1 | public function getUniqueId() |
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| 357 | { |
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| 358 | 1 | return ''; |
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| 359 | } |
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| 360 | |||
| 361 | /** |
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| 362 | * Sets the root directory of the application and the @app alias. |
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| 363 | * This method can only be invoked at the beginning of the constructor. |
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| 364 | * @param string $path the root directory of the application. |
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| 365 | * @property string the root directory of the application. |
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| 366 | * @throws InvalidParamException if the directory does not exist. |
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| 367 | */ |
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| 368 | 2775 | public function setBasePath($path) |
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| 373 | |||
| 374 | /** |
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| 375 | * Runs the application. |
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| 376 | * This is the main entrance of an application. |
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| 377 | * @return int the exit status (0 means normal, non-zero values mean abnormal) |
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| 378 | */ |
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| 379 | public function run() |
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| 402 | |||
| 403 | /** |
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| 404 | * Handles the specified request. |
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| 405 | * |
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| 406 | * This method should return an instance of [[Response]] or its child class |
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| 407 | * which represents the handling result of the request. |
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| 408 | * |
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| 409 | * @param Request $request the request to be handled |
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| 410 | * @return Response the resulting response |
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| 411 | */ |
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| 412 | abstract public function handleRequest($request); |
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| 413 | |||
| 414 | private $_runtimePath; |
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| 415 | |||
| 416 | /** |
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| 417 | * Returns the directory that stores runtime files. |
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| 418 | * @return string the directory that stores runtime files. |
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| 419 | * Defaults to the "runtime" subdirectory under [[basePath]]. |
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| 420 | */ |
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| 421 | 2775 | public function getRuntimePath() |
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| 429 | |||
| 430 | /** |
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| 431 | * Sets the directory that stores runtime files. |
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| 432 | * @param string $path the directory that stores runtime files. |
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| 433 | */ |
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| 434 | 2775 | public function setRuntimePath($path) |
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| 439 | |||
| 440 | private $_vendorPath; |
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| 441 | |||
| 442 | /** |
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| 443 | * Returns the directory that stores vendor files. |
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| 444 | * @return string the directory that stores vendor files. |
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| 445 | * Defaults to "vendor" directory under [[basePath]]. |
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| 446 | */ |
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| 447 | 10 | public function getVendorPath() |
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| 455 | |||
| 456 | /** |
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| 457 | * Sets the directory that stores vendor files. |
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| 458 | * @param string $path the directory that stores vendor files. |
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| 459 | */ |
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| 460 | 2775 | public function setVendorPath($path) |
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| 467 | |||
| 468 | /** |
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| 469 | * Returns the time zone used by this application. |
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| 470 | * This is a simple wrapper of PHP function date_default_timezone_get(). |
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| 471 | * If time zone is not configured in php.ini or application config, |
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| 472 | * it will be set to UTC by default. |
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| 473 | * @return string the time zone used by this application. |
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| 474 | * @see http://php.net/manual/en/function.date-default-timezone-get.php |
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| 475 | */ |
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| 476 | 273 | public function getTimeZone() |
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| 480 | |||
| 481 | /** |
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| 482 | * Sets the time zone used by this application. |
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| 483 | * This is a simple wrapper of PHP function date_default_timezone_set(). |
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| 484 | * Refer to the [php manual](http://www.php.net/manual/en/timezones.php) for available timezones. |
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| 485 | * @param string $value the time zone used by this application. |
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| 486 | * @see http://php.net/manual/en/function.date-default-timezone-set.php |
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| 487 | */ |
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| 488 | 372 | public function setTimeZone($value) |
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| 492 | |||
| 493 | /** |
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| 494 | * Returns the database connection component. |
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| 495 | * @return \yii\db\Connection the database connection. |
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| 496 | */ |
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| 497 | 58 | public function getDb() |
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| 501 | |||
| 502 | /** |
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| 503 | * Returns the log dispatcher component. |
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| 504 | * @return \yii\log\Dispatcher the log dispatcher application component. |
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| 505 | */ |
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| 506 | 6 | public function getLog() |
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| 510 | |||
| 511 | /** |
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| 512 | * Returns the error handler component. |
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| 513 | * @return \yii\web\ErrorHandler|\yii\console\ErrorHandler the error handler application component. |
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| 514 | */ |
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| 515 | public function getErrorHandler() |
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| 519 | |||
| 520 | /** |
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| 521 | * Returns the cache component. |
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| 522 | * @return \yii\caching\CacheInterface the cache application component. Null if the component is not enabled. |
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| 523 | */ |
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| 524 | public function getCache() |
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| 528 | |||
| 529 | /** |
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| 530 | * Returns the formatter component. |
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| 531 | * @return \yii\i18n\Formatter the formatter application component. |
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| 532 | */ |
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| 533 | 20 | public function getFormatter() |
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| 537 | |||
| 538 | /** |
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| 539 | * Returns the request component. |
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| 540 | * @return \yii\web\Request|\yii\console\Request the request component. |
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| 541 | */ |
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| 542 | public function getRequest() |
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| 546 | |||
| 547 | /** |
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| 548 | * Returns the response component. |
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| 549 | * @return \yii\web\Response|\yii\console\Response the response component. |
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| 550 | */ |
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| 551 | public function getResponse() |
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| 555 | |||
| 556 | /** |
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| 557 | * Returns the view object. |
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| 558 | * @return View|\yii\web\View the view application component that is used to render various view files. |
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| 559 | */ |
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| 560 | 33 | public function getView() |
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| 564 | |||
| 565 | /** |
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| 566 | * Returns the URL manager for this application. |
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| 567 | * @return \yii\web\UrlManager the URL manager for this application. |
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| 568 | */ |
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| 569 | 33 | public function getUrlManager() |
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| 573 | |||
| 574 | /** |
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| 575 | * Returns the internationalization (i18n) component. |
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| 576 | * @return \yii\i18n\I18N the internationalization application component. |
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| 577 | */ |
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| 578 | 484 | public function getI18n() |
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| 582 | |||
| 583 | /** |
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| 584 | * Returns the mailer component. |
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| 585 | * @return \yii\mail\MailerInterface the mailer application component. |
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| 586 | */ |
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| 587 | public function getMailer() |
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| 591 | |||
| 592 | /** |
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| 593 | * Returns the auth manager for this application. |
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| 594 | * @return \yii\rbac\ManagerInterface the auth manager application component. |
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| 595 | * Null is returned if auth manager is not configured. |
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| 596 | */ |
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| 597 | public function getAuthManager() |
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| 601 | |||
| 602 | /** |
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| 603 | * Returns the asset manager. |
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| 604 | * @return \yii\web\AssetManager the asset manager application component. |
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| 605 | */ |
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| 606 | 6 | public function getAssetManager() |
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| 610 | |||
| 611 | /** |
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| 612 | * Returns the security component. |
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| 613 | * @return \yii\base\Security the security application component. |
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| 614 | */ |
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| 615 | 35 | public function getSecurity() |
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| 619 | |||
| 620 | /** |
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| 621 | * Returns the configuration of core application components. |
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| 622 | * @see set() |
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| 623 | */ |
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| 624 | 2775 | public function coreComponents() |
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| 637 | |||
| 638 | /** |
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| 639 | * Terminates the application. |
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| 640 | * This method replaces the `exit()` function by ensuring the application life cycle is completed |
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| 641 | * before terminating the application. |
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| 642 | * @param int $status the exit status (value 0 means normal exit while other values mean abnormal exit). |
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| 643 | * @param Response $response the response to be sent. If not set, the default application [[response]] component will be used. |
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| 644 | * @throws ExitException if the application is in testing mode |
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| 645 | */ |
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| 646 | 3 | public function end($status = 0, $response = null) |
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| 665 | |||
| 666 | /** |
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| 667 | * Configures [[Yii::$container]] with the $config. |
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| 668 | * |
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| 669 | * @param array $config values given in terms of name-value pairs |
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| 670 | * @since 2.0.11 |
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| 671 | */ |
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| 672 | 1 | public function setContainer($config) |
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| 676 | } |
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| 677 |
Loading history...
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..