154 lines
4.5 KiB
PHP
154 lines
4.5 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2010, The volkszaehler.org project
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* @package default
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* @license http://www.opensource.org/licenses/gpl-license.php GNU Public License
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*/
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/*
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* This file is part of volkzaehler.org
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*
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* volkzaehler.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* volkzaehler.org 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 volkszaehler.org. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace Volkszaehler;
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use Volkszaehler\View\HTTP;
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use Volkszaehler\View;
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use Volkszaehler\Controller;
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use Volkszaehler\Util;
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/**
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* backend dispatcher
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*
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* this class acts as a frontcontroller to route incomming requests
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*
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* @package default
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* @author Steffen Vogel <info@steffenvogel.de>
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*/
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class Dispatcher {
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/**
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* @var EntityManager Doctrine Model
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*/
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protected $em;
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/**
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* @var View
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*/
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protected $view;
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/**
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* @var Controller
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*/
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protected $controller;
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/**
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* @var Debug optional debugging instance
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*/
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protected $debug = NULL;
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/**
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* constructor
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*/
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public function __construct() {
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// create HTTP request & response (needed to initialize view & controller)
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$request = new HTTP\Request();
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$response = new HTTP\Response();
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$format = ($request->getParameter('format')) ? $request->getParameter('format') : 'json'; // default action
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$controller = $request->getParameter('controller');
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// initialize entity manager
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$this->em = Dispatcher::createEntityManager();
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// staring debugging
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if (($request->getParameter('debug') && $request->getParameter('debug') > 0) || Util\Configuration::read('debug')) {
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$this->debug = new Util\Debug($request->getParameter('debug'));
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$this->em->getConnection()->getConfiguration()->setSQLLogger($this->debug);
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}
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// initialize view
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switch ($format) {
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case 'png':
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case 'jpeg':
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case 'gif':
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$this->view = new View\JpGraphView($request, $response, $format);
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break;
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case 'json':
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case 'xml':
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$controller = 'channel';
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case 'csv':
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$viewClassName = 'Volkszaehler\View\\' . strtoupper($format) . '\\' . strtoupper($format) . ucfirst($controller) . 'View';
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if (!(Util\ClassLoader::classExists($viewClassName)) || !is_subclass_of($viewClassName, '\Volkszaehler\View\View')) {
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throw new \InvalidArgumentException('\'' . $viewClassName . '\' is not a valid View');
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}
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$this->view = new $viewClassName($request, $response);
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break;
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default:
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throw new \Exception('unknown format: ' . $format);
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break;
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}
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// initialize controller
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$controllerClassName = 'Volkszaehler\Controller\\' . ucfirst(strtolower($request->getParameter('controller'))) . 'Controller';
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if (!(Util\ClassLoader::classExists($controllerClassName)) || !is_subclass_of($controllerClassName, '\Volkszaehler\Controller\Controller')) {
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throw new \InvalidArgumentException('\'' . $controllerClassName . '\' is not a valid controller');
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}
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$this->controller = new $controllerClassName($this->view, $this->em);
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}
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/**
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* execute application
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*/
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public function run() {
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$action = ($this->view->request->getParameter('action')) ? strtolower($this->view->request->getMethod()) : $this->view->request->getParameter('action'); // default action
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$this->controller->run($action); // run controllers actions (usually CRUD: http://de.wikipedia.org/wiki/CRUD)
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if (Util\Debug::isActivated()) {
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$this->view->addDebug($this->debug);
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}
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$this->view->render(); // render view & send http response
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}
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/**
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* factory for doctrines entitymanager
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*
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* @todo create extra singleton class?
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*/
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public static function createEntityManager() {
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$config = new \Doctrine\ORM\Configuration;
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if (extension_loaded('apc')) {
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$cache = new \Doctrine\Common\Cache\ApcCache;
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$config->setMetadataCacheImpl($cache);
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$config->setQueryCacheImpl($cache);
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}
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$driverImpl = $config->newDefaultAnnotationDriver(BACKEND_DIR . '/lib/Model');
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$config->setMetadataDriverImpl($driverImpl);
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$config->setProxyDir(BACKEND_DIR . '/lib/Model/Proxies');
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$config->setProxyNamespace('Volkszaehler\Model\Proxies');
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$config->setAutoGenerateProxyClasses(DEV_ENV == TRUE);
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return \Doctrine\ORM\EntityManager::create(Util\Configuration::read('db'), $config);
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}
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}
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?>
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