PHP Core\App类代码示例

 /**
  * Override startup of the Shell
  *
  * @return void
  */
 public function startup()
 {
     parent::startup();
     if (isset($this->params['connection'])) {
         $this->connection = $this->params['connection'];
     }
     $class = Configure::read('Acl.classname');
     $className = App::classname('Acl.' . $class, 'Adapter');
     if ($class !== 'DbAcl' && !is_subclass_of($className, 'Acl\\Adapter\\DbAcl')) {
         $out = "--------------------------------------------------\n";
         $out .= __d('cake_acl', 'Error: Your current CakePHP configuration is set to an ACL implementation other than DB.') . "\n";
         $out .= __d('cake_acl', 'Please change your core config to reflect your decision to use DbAcl before attempting to use this script') . "\n";
         $out .= "--------------------------------------------------\n";
         $out .= __d('cake_acl', 'Current ACL Classname: %s', $class) . "\n";
         $out .= "--------------------------------------------------\n";
         $this->err($out);
         return $this->_stop();
     }
     if ($this->command) {
         if (Configure::check('Datasource') === null) {
             $this->out(__d('cake_acl', 'Your database configuration was not found. Take a moment to create one.'));
             $this->args = null;
             return $this->DbConfig->execute();
         }
         if (!in_array($this->command, ['initdb'])) {
             $registry = new ComponentRegistry();
             $this->Acl = new AclComponent($registry);
             $controller = new Controller();
         }
     }
 }

 /**
  * Gets controller to use, either plugin or application controller.
  *
  * @param \Cake\Network\Request $request Request object
  * @param \Cake\Network\Response $response Response for the controller.
  * @return \Cake\Controller\Controller|false Object if loaded, boolean false otherwise.
  */
 protected function _getController($request, $response)
 {
     $pluginPath = $controller = null;
     $namespace = 'Controller';
     if (!empty($request->params['plugin'])) {
         $pluginPath = $request->params['plugin'] . '.';
     }
     if (!empty($request->params['controller'])) {
         $controller = $request->params['controller'];
     }
     if (!empty($request->params['prefix'])) {
         $namespace .= '/' . $request->params['prefix'];
     }
     $firstChar = substr($controller, 0, 1);
     if (strpos($controller, '\\') !== false || strpos($controller, '.') !== false || $firstChar === strtolower($firstChar)) {
         return false;
     }
     $className = false;
     if ($pluginPath . $controller) {
         $className = App::classname($pluginPath . $controller, $namespace, 'Controller');
     }
     if (!$className) {
         return false;
     }
     $reflection = new ReflectionClass($className);
     if ($reflection->isAbstract() || $reflection->isInterface()) {
         return false;
     }
     return $reflection->newInstance($request, $response, $controller);
 }

 /**
  * Find the paths to all the installed shell templates in the app.
  *
  * Bake templates are directories under `Template/Bake` path.
  * They are listed in this order: app -> plugin -> default
  *
  * @return array Array of bake templates that are installed.
  */
 protected function _findTemplates()
 {
     $paths = App::path('Template');
     $plugins = Plugin::loaded();
     foreach ($plugins as $plugin) {
         $paths[] = Plugin::classPath($plugin) . 'Template' . DS;
     }
     $core = current(App::core('Template'));
     $Folder = new Folder($core . 'Bake' . DS . 'default');
     $contents = $Folder->read();
     $templateFolders = $contents[0];
     $paths[] = $core;
     foreach ($paths as $i => $path) {
         $paths[$i] = rtrim($path, DS) . DS;
     }
     $this->_io->verbose('Found the following bake templates:');
     $templates = [];
     foreach ($paths as $path) {
         $Folder = new Folder($path . 'Bake', false);
         $contents = $Folder->read();
         $subDirs = $contents[0];
         foreach ($subDirs as $dir) {
             $Folder = new Folder($path . 'Bake' . DS . $dir);
             $contents = $Folder->read();
             $subDirs = $contents[0];
             if (array_intersect($contents[0], $templateFolders)) {
                 $templateDir = $path . 'Bake' . DS . $dir . DS;
                 $templates[$dir] = $templateDir;
                 $this->_io->verbose(sprintf("- %s -> %s", $dir, $templateDir));
             }
         }
     }
     return $templates;
 }

 /**
  * Installing plugin
  * @param null $zipPath
  * @return array|bool
  * @throws CakeException
  */
 public function install($zipPath = null)
 {
     if (!file_exists($zipPath)) {
         throw new Exception(__d('spider', 'Invalid plugin file path'));
     }
     $pluginInfo = $this->getPluginMeta($zipPath);
     $pluginHomeDir = App::path('Plugin');
     $pluginHomeDir = reset($pluginHomeDir);
     $pluginPath = $pluginHomeDir . $pluginInfo->name . DS;
     if (is_dir($pluginPath)) {
         throw new Exception(__d('spider', 'Plugin already exists'));
     }
     $Zip = new \ZipArchive();
     if ($Zip->open($zipPath) === true) {
         new Folder($pluginPath, true);
         $Zip->extractTo($pluginPath);
         if (!empty($pluginInfo->rootPath)) {
             $old = $pluginPath . $pluginInfo->rootPath;
             $new = $pluginPath;
             $Folder = new Folder($old);
             $Folder->move($new);
         }
         $Zip->close();
         return (array) $pluginInfo;
     } else {
         throw new CakeException(__d('spider', 'Failed to extract plugin'));
     }
     return false;
 }

 /**
  * Get controller to use, either plugin controller or application controller
  *
  * @param \Cake\Network\Request $request Request object
  * @param \Cake\Network\Response $response Response for the controller.
  * @return mixed name of controller if not loaded, or object if loaded
  */
 protected function _getController($request, $response)
 {
     $pluginPath = $controller = null;
     $namespace = 'Controller';
     if (!empty($request->params['plugin'])) {
         $pluginPath = $request->params['plugin'] . '.';
     }
     if (!empty($request->params['controller'])) {
         $controller = $request->params['controller'];
     }
     if (!empty($request->params['prefix'])) {
         $prefixes = array_map('Cake\\Utility\\Inflector::camelize', explode('/', $request->params['prefix']));
         $namespace .= '/' . implode('/', $prefixes);
     }
     if (strpos($controller, '\\') !== false || strpos($controller, '.') !== false) {
         return false;
     }
     $className = false;
     if ($pluginPath . $controller) {
         $className = App::classname($pluginPath . $controller, $namespace, 'Controller');
     }
     if (!$className) {
         return false;
     }
     $reflection = new ReflectionClass($className);
     if ($reflection->isAbstract() || $reflection->isInterface()) {
         return false;
     }
     return $reflection->newInstance($request, $response, $controller);
 }

 /**
  * Get controller to use, either plugin controller or application controller
  *
  * @param \Cake\Network\Request $request Request object
  * @param \Cake\Network\Response $response Response for the controller.
  * @return mixed name of controller if not loaded, or object if loaded
  */
 protected function _getController($request, $response)
 {
     $pluginPath = $controller = null;
     $namespace = 'Controller';
     if (!empty($request->params['plugin'])) {
         $pluginPath = $request->params['plugin'] . '.';
     }
     if (!empty($request->params['controller'])) {
         $controller = $request->params['controller'];
     }
     if (!empty($request->params['prefix'])) {
         $namespace .= '/' . Inflector::camelize($request->params['prefix']);
     }
     $className = false;
     if ($pluginPath . $controller) {
         $className = App::classname($pluginPath . $controller, $namespace, 'Controller');
     }
     if (!$className) {
         return false;
     }
     $reflection = new \ReflectionClass($className);
     if ($reflection->isAbstract() || $reflection->isInterface()) {
         return false;
     }
     return $reflection->newInstance($request, $response);
 }

 /**
  * Create a controller for a given request/response
  *
  * @param \Cake\Network\Request $request The request to build a controller for.
  * @param \Cake\Network\Response $response The response to use.
  * @return \Cake\Controller\Controller
  */
 public function create(Request $request, Response $response)
 {
     $pluginPath = $controller = null;
     $namespace = 'Controller';
     if (isset($request->params['plugin'])) {
         $pluginPath = $request->params['plugin'] . '.';
     }
     if (isset($request->params['controller'])) {
         $controller = $request->params['controller'];
     }
     if (isset($request->params['prefix'])) {
         if (strpos($request->params['prefix'], '/') === false) {
             $namespace .= '/' . Inflector::camelize($request->params['prefix']);
         } else {
             $prefixes = array_map('Cake\\Utility\\Inflector::camelize', explode('/', $request->params['prefix']));
             $namespace .= '/' . implode('/', $prefixes);
         }
     }
     $firstChar = substr($controller, 0, 1);
     if (strpos($controller, '\\') !== false || strpos($controller, '.') !== false || $firstChar === strtolower($firstChar)) {
         return $this->missingController($request);
     }
     $className = false;
     if ($pluginPath . $controller) {
         $className = App::classname($pluginPath . $controller, $namespace, 'Controller');
     }
     if (!$className) {
         return $this->missingController($request);
     }
     $reflection = new ReflectionClass($className);
     if ($reflection->isAbstract() || $reflection->isInterface()) {
         return $this->missingController($request);
     }
     return $reflection->newInstance($request, $response, $controller);
 }

 /**
  * Overwrite shell initialize to dynamically load all Queue Related Tasks.
  *
  * @return void
  */
 public function initialize()
 {
     $plugins = Plugin::loaded();
     foreach ($plugins as $plugin) {
         $pluginPaths = App::path('Shell/Task', $plugin);
         foreach ($pluginPaths as $pluginPath) {
             $Folder = new Folder($pluginPath);
             $res = $Folder->find('Queue.+Task\\.php');
             foreach ($res as &$r) {
                 $r = $plugin . '.' . basename($r, 'Task.php');
             }
             $this->tasks = array_merge($this->tasks, $res);
         }
     }
     $paths = App::path('Shell/Task');
     foreach ($paths as $path) {
         $Folder = new Folder($path);
         $res = array_merge($this->tasks, $Folder->find('Queue.+\\.php'));
         foreach ($res as &$r) {
             $r = basename($r, 'Task.php');
         }
         $this->tasks = $res;
     }
     parent::initialize();
     $this->QueuedTasks->initConfig();
 }

 /**
  * Sets up the configuration for the model, and loads ACL models if they haven't been already
  *
  * @param Table $model Table instance being attached
  * @param array $config Configuration
  * @return void
  */
 public function __construct(Table $model, array $config = [])
 {
     $this->_table = $model;
     if (isset($config[0])) {
         $config['type'] = $config[0];
         unset($config[0]);
     }
     if (isset($config['type'])) {
         $config['type'] = strtolower($config['type']);
     }
     parent::__construct($model, $config);
     $types = $this->_typeMaps[$this->config()['type']];
     if (!is_array($types)) {
         $types = [$types];
     }
     foreach ($types as $type) {
         $alias = Inflector::pluralize($type);
         $className = App::className($alias . 'Table', 'Model/Table');
         if ($className == false) {
             $className = App::className('Acl.' . $alias . 'Table', 'Model/Table');
         }
         $config = [];
         if (!TableRegistry::exists($alias)) {
             $config = ['className' => $className];
         }
         $model->hasMany($type, ['targetTable' => TableRegistry::get($alias, $config)]);
     }
     if (!method_exists($model->entityClass(), 'parentNode')) {
         trigger_error(__d('cake_dev', 'Callback {0} not defined in {1}', ['parentNode()', $model->entityClass()]), E_USER_WARNING);
     }
 }

 /**
  * Resolve a driver classname.
  *
  * Part of the template method for Cake\Core\ObjectRegistry::load()
  *
  * @param string $class Partial classname to resolve.
  * @return string|false Either the correct classname or false.
  */
 protected function _resolveClassName($class)
 {
     if (is_object($class)) {
         return $class;
     }
     return App::className($class, 'Datasource');
 }

 /**
  * Renders the given cell.
  *
  * Example:
  *
  * ```
  * // Taxonomy\View\Cell\TagCloudCell::smallList()
  * $cell = $this->cell('Taxonomy.TagCloud::smallList', ['limit' => 10]);
  *
  * // App\View\Cell\TagCloudCell::smallList()
  * $cell = $this->cell('TagCloud::smallList', ['limit' => 10]);
  * ```
  *
  * The `display` action will be used by default when no action is provided:
  *
  * ```
  * // Taxonomy\View\Cell\TagCloudCell::display()
  * $cell = $this->cell('Taxonomy.TagCloud');
  * ```
  *
  * Cells are not rendered until they are echoed.
  *
  * @param string $cell You must indicate cell name, and optionally a cell action. e.g.: `TagCloud::smallList`
  * will invoke `View\Cell\TagCloudCell::smallList()`, `display` action will be invoked by default when none is provided.
  * @param array $data Additional arguments for cell method. e.g.:
  *    `cell('TagCloud::smallList', ['a1' => 'v1', 'a2' => 'v2'])` maps to `View\Cell\TagCloud::smallList(v1, v2)`
  * @param array $options Options for Cell's constructor
  * @return \Cake\View\Cell The cell instance
  * @throws \Cake\View\Exception\MissingCellException If Cell class was not found.
  * @throws \BadMethodCallException If Cell class does not specified cell action.
  */
 public function cell($cell, array $data = [], array $options = [])
 {
     $parts = explode('::', $cell);
     if (count($parts) === 2) {
         list($pluginAndCell, $action) = [$parts[0], $parts[1]];
     } else {
         list($pluginAndCell, $action) = [$parts[0], 'display'];
     }
     list($plugin) = pluginSplit($pluginAndCell);
     $className = App::className($pluginAndCell, 'View/Cell', 'Cell');
     if (!$className) {
         throw new Exception\MissingCellException(['className' => $pluginAndCell . 'Cell']);
     }
     $cell = $this->_createCell($className, $action, $plugin, $options);
     if (!empty($data)) {
         $data = array_values($data);
     }
     try {
         $reflect = new ReflectionMethod($cell, $action);
         $reflect->invokeArgs($cell, $data);
         return $cell;
     } catch (ReflectionException $e) {
         throw new BadMethodCallException(sprintf('Class %s does not have a "%s" method.', $className, $action));
     }
 }

 /**
  * Renders the given gizmo.
  *
  * Example:
  *
  * {{{
  * // Taxonomy\View\Gizmo\TagCloudGizmo::smallList()
  * $gizmo = $this->gizmo('Taxonomy.TagCloud::smallList', ['limit' => 10]);
  *
  * // App\View\Gizmo\TagCloudGizmo::smallList()
  * $gizmo = $this->gizmo('TagCloud::smallList', ['limit' => 10]);
  * }}}
  *
  * The `display` action will be used by default when no action is provided:
  *
  * {{{
  * // Taxonomy\View\Gizmo\TagCloudGizmo::display()
  * $gizmo = $this->gizmo('Taxonomy.TagCloud');
  * }}}
  *
  * Gizmos are not rendered until they are echoed.
  *
  * @param string $gizmo You must indicate gizmo name, and optionally a gizmo action. e.g.: `TagCloud::smallList`
  * will invoke `View\Gizmo\TagCloudGizmo::smallList()`, `display` action will be invoked by default when none is provided.
  * @param array $data Additional arguments for gizmo method. e.g.:
  *    `gizmo('TagCloud::smallList', ['a1' => 'v1', 'a2' => 'v2'])` maps to `View\Gizmo\TagCloud::smallList(v1, v2)`
  * @param array $options Options for Gizmo's constructor
  * @return \Cake\View\Gizmo The gizmo instance
  * @throws \Cake\View\Exception\MissingGizmoException If Gizmo class was not found.
  * @throws \BadMethodCallException If Gizmo class does not specified gizmo action.
  */
 public function gizmo($gizmo, array $data = [], array $options = [])
 {
     $parts = explode('::', $gizmo);
     if (count($parts) === 2) {
         list($pluginAndGizmo, $action) = [$parts[0], $parts[1]];
     } else {
         list($pluginAndGizmo, $action) = [$parts[0], 'display'];
     }
     list($plugin, $gizmoName) = pluginSplit($pluginAndGizmo);
     $className = App::className($pluginAndGizmo, 'View/Gizmo', 'Gizmo');
     if (!$className) {
         throw new Exception\MissingGizmoException(array('className' => $pluginAndGizmo . 'Gizmo'));
     }
     $gizmo = $this->_createGizmo($className, $action, $plugin, $options);
     if (!empty($data)) {
         $data = array_values($data);
     }
     try {
         $reflect = new \ReflectionMethod($gizmo, $action);
         $reflect->invokeArgs($gizmo, $data);
         return $gizmo;
     } catch (\ReflectionException $e) {
         throw new \BadMethodCallException(sprintf('Class %s does not have a "%s" method.', $className, $action));
     }
 }

 /**
  * Get controller to use, either plugin controller or application controller
  *
  * @param \Cake\Network\Request $request Request object
  * @param \Cake\Network\Response $response Response for the controller.
  * @return mixed name of controller if not loaded, or object if loaded
  */
 protected function _getController($request, $response)
 {
     $pluginPath = $controller = null;
     $namespace = 'Controller';
     if (!empty($request->params['plugin'])) {
         $pluginPath = $request->params['plugin'] . '.';
     }
     if ($pluginPath) {
         return parent::_getController($request, $response);
     }
     if (!empty($request->params['controller'])) {
         $controller = $request->params['controller'];
     }
     if (!empty($request->params['prefix'])) {
         $namespace .= '/' . Inflector::camelize($request->params['prefix']);
     }
     $className = false;
     if ($pluginPath . $controller) {
         $className = App::classname($pluginPath . $controller, $namespace, 'Controller');
     }
     if (!$className) {
         return false;
     }
     $instance = PipingBag::get($className);
     if (method_exists($instance, 'viewBuilder')) {
         $instance->viewBuilder();
     } else {
         $instance->viewPath = null;
     }
     $instance->name = $controller;
     $instance->setRequest($request);
     $instance->response = $response;
     return $instance;
 }

 /**
  * Get/Create an instance from the registry.
  *
  * When getting an instance, if it does not already exist,
  * a new instance will be created using the provide alias, and options.
  *
  * @param string $alias The name of the alias to get.
  * @param array $options Configuration options for the type constructor.
  * @return \Cake\ElasticSearch\Type
  */
 public static function get($alias, array $options = [])
 {
     if (isset(static::$instances[$alias])) {
         if (!empty($options) && static::$options[$alias] !== $options) {
             throw new RuntimeException(sprintf('You cannot configure "%s", it already exists in the registry.', $alias));
         }
         return static::$instances[$alias];
     }
     static::$options[$alias] = $options;
     list(, $classAlias) = pluginSplit($alias);
     $options = $options + ['name' => Inflector::underscore($classAlias)];
     if (empty($options['className'])) {
         $options['className'] = Inflector::camelize($alias);
     }
     $className = App::className($options['className'], 'Model/Type', 'Type');
     if ($className) {
         $options['className'] = $className;
     } else {
         if (!isset($options['name']) && strpos($options['className'], '\\') === false) {
             list(, $name) = pluginSplit($options['className']);
             $options['name'] = Inflector::underscore($name);
         }
         $options['className'] = 'Cake\\ElasticSearch\\Type';
     }
     if (empty($options['connection'])) {
         $connectionName = $options['className']::defaultConnectionName();
         $options['connection'] = ConnectionManager::get($connectionName);
     }
     static::$instances[$alias] = new $options['className']($options);
     return static::$instances[$alias];
 }

 /**
  * Resolve a cache engine classname.
  *
  * Part of the template method for Cake\Core\ObjectRegistry::load()
  *
  * @param string $class Partial classname to resolve.
  * @return string|false Either the correct classname or false.
  */
 protected function _resolveClassName($class)
 {
     if (is_object($class)) {
         return $class;
     }
     return App::className($class, 'Cache/Engine', 'Engine');
 }