--- /dev/null
+<?php
+/**
+ * A resolver for resolving controllers locally
+ *
+ * @author Roland Haeder <webmaster@ship-simu.org>
+ * @version 0.0.0
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, this is free software
+ * @license GNU GPL 3.0 or any newer version
+ * @link http://www.ship-simu.org
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+class ImageControllerResolver extends BaseControllerResolver implements ControllerResolver {
+ /**
+ * Last successfull resolved controller (name)
+ */
+ private $lastControllerName = "";
+
+ /**
+ * Last successfull resolved controller (instance)
+ */
+ private $lastControllerInstance = null;
+
+ /**
+ * Protected constructor
+ *
+ * @return void
+ */
+ protected function __construct () {
+ // Call parent constructor
+ parent::__construct(__CLASS__);
+
+ // Set prefix to "Image"
+ $this->setControllerPrefix("Image");
+ }
+
+ /**
+ * Creates an instance of a resolver class with a given command
+ *
+ * @param $controllerName The controller we shall resolve
+ * @param $appInstance An instance of a manageable application helper class
+ * @return $resolverInstance The prepared controller resolver instance
+ * @throws EmptyVariableException Thrown if the default command is not set
+ * @throws InvalidControllerException Thrown if the default controller is invalid
+ */
+ public final static function createImageControllerResolver ($controllerName, ManageableApplication $appInstance) {
+ // Create the new instance
+ $resolverInstance = new ImageControllerResolver();
+
+ // Is the variable $controllerName set and the command is valid?
+ if (empty($controllerName)) {
+ // Then thrown an exception here
+ throw new EmptyVariableException(array($resolverInstance, 'commandName'), self::EXCEPTION_UNEXPECTED_EMPTY_STRING);
+ } elseif (!$resolverInstance->isControllerValid($controllerName)) {
+ // Invalid command found
+ throw new InvalidControllerException(array($resolverInstance, $controllerName), self::EXCEPTION_INVALID_CONTROLLER);
+ }
+
+ // Set the application instance
+ $resolverInstance->setApplicationInstance($appInstance);
+
+ // Set command name
+ $resolverInstance->setControllerName($controllerName);
+
+ // Return the prepared instance
+ return $resolverInstance;
+ }
+
+ /**
+ * Resolves the default controller of the given command
+ *
+ * @return $controllerInstance A controller instance for the default
+ * command
+ * @throws InvalidControllerInstanceException Thrown if $controllerInstance
+ * is invalid
+ */
+ public function resolveController () {
+ // Init variables
+ $controllerName = "";
+ $controllerInstance = null;
+
+ // Get the command name
+ $controllerName = $this->getControllerName();
+
+ // Get the command
+ $controllerInstance = $this->loadController($controllerName);
+
+ // And validate it
+ if ((!is_object($controllerInstance)) || (!$controllerInstance instanceof Controller)) {
+ // This command has an invalid instance!
+ throw new InvalidControllerInstanceException(array($this, $controllerName), self::EXCEPTION_INVALID_CONTROLLER);
+ } // END - if
+
+ // Set last controller
+ $this->lastControllerInstance = $controllerInstance;
+
+ // Return the maybe resolved instance
+ return $controllerInstance;
+ }
+
+ /**
+ * "Loads" a given controller and instances it if not yet cached. If the
+ * controller was not found one of the default controllers will be used
+ * depending on wether news shall be displayed.
+ *
+ * @param $controllerName A controller name we shall look for
+ * @return $controllerInstance A loaded controller instance
+ * @throws InvalidControllerException Thrown if even the requested
+ * controller class is missing (bad!)
+ */
+ private function loadController ($controllerName) {
+ // Debug message
+ //* DEBUG: */ $this->debugBackTrace();
+
+ // Cache default command
+ $defaultController = $this->getConfigInstance()->readConfig('default_image_command');
+
+ // Init controller instance
+ $controllerInstance = null;
+
+ // Default controller
+ $this->setClassName($defaultController);
+
+ // Generate the class name
+ //* DEBUG: */ echo __METHOD__.": Controller=".$controllerName;
+ if ($controllerName != $defaultController) {
+ // Create controller class name
+ $this->setClassName(sprintf("Image%sController",
+ $this->convertToClassName($controllerName)
+ ));
+ } // END - if
+ //* DEBUG: */ echo ", controller=".$this->getClassName()."<br />\n";
+
+ // Is this class loaded?
+ if (!class_exists($this->getClassName())) {
+ // Class not found, so or throw an exception
+ throw new InvalidControllerException(array($this, $controllerName), self::EXCEPTION_INVALID_CONTROLLER);
+ } // END - if
+
+ // Initiate the resolver and controller
+ $resolverInstance = ObjectFactory::createObjectByConfiguredName('image_cmd_resolver_class', array($controllerName, $this->getApplicationInstance()));
+ $controllerInstance = ObjectFactory::createObjectByName($this->getClassName(), array($resolverInstance));
+
+ // Remove resolver
+ unset($resolverInstance);
+
+ // Return the result
+ return $controllerInstance;
+ }
+}
+
+// [EOF]
+?>
projects / mailer.git / blobdiff