2010-02-17 13:54:36 +00:00
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<?php
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2010-09-15 19:49:16 +01:00
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namespace Symfony\Component\HttpKernel;
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2010-02-17 13:54:36 +00:00
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2010-08-20 22:09:55 +01:00
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use Symfony\Component\DependencyInjection\ContainerInterface;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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use Symfony\Component\DependencyInjection\Dumper\PhpDumper;
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use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
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use Symfony\Component\DependencyInjection\Loader\DelegatingLoader;
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use Symfony\Component\DependencyInjection\Loader\LoaderResolver;
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use Symfony\Component\DependencyInjection\Loader\LoaderInterface;
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use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
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use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
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use Symfony\Component\DependencyInjection\Loader\IniFileLoader;
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use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
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use Symfony\Component\DependencyInjection\Loader\ClosureLoader;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpKernel\HttpKernelInterface;
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2010-09-15 19:49:16 +01:00
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use Symfony\Component\HttpKernel\ClassCollectionLoader;
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2010-04-07 01:51:29 +01:00
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2010-02-17 13:54:36 +00:00
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/*
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2010-04-07 01:51:29 +01:00
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* This file is part of the Symfony package.
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2010-02-17 13:54:36 +00:00
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* The Kernel is the heart of the Symfony system. It manages an environment
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* that can host bundles.
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*
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2010-10-17 12:45:15 +01:00
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* @author Fabien Potencier <fabien.potencier@symfony-project.org>
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2010-02-17 13:54:36 +00:00
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*/
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2010-05-06 11:04:50 +01:00
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abstract class Kernel implements HttpKernelInterface, \Serializable
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2010-02-17 13:54:36 +00:00
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{
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2010-05-06 12:25:53 +01:00
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protected $bundles;
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protected $bundleDirs;
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protected $container;
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protected $rootDir;
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protected $environment;
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protected $debug;
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protected $booted;
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protected $name;
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protected $startTime;
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const VERSION = '2.0.0-DEV';
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/**
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* Constructor.
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*
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* @param string $environment The environment
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* @param Boolean $debug Whether to enable debugging or not
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*/
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public function __construct($environment, $debug)
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2010-02-17 13:54:36 +00:00
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{
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2010-05-06 12:25:53 +01:00
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$this->environment = $environment;
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$this->debug = (Boolean) $debug;
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$this->booted = false;
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$this->rootDir = realpath($this->registerRootDir());
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$this->name = basename($this->rootDir);
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2010-05-03 08:54:17 +01:00
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2010-05-07 15:09:11 +01:00
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if ($this->debug) {
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2010-05-06 12:25:53 +01:00
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ini_set('display_errors', 1);
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error_reporting(-1);
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$this->startTime = microtime(true);
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2010-05-07 15:09:11 +01:00
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} else {
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2010-05-06 12:25:53 +01:00
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ini_set('display_errors', 0);
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}
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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2010-06-10 16:54:39 +01:00
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public function __clone()
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{
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if ($this->debug) {
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$this->startTime = microtime(true);
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}
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$this->booted = false;
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$this->container = null;
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}
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2011-01-17 19:41:55 +00:00
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/**
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* Returns the root directory of this application.
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*
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* Most of the time, this is just __DIR__.
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*
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* @return string A directory path
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*/
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2010-05-06 12:25:53 +01:00
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abstract public function registerRootDir();
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2011-01-17 19:41:55 +00:00
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/**
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* Returns an array of bundles to registers.
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*
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* @return array An array of bundle instances.
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*/
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2010-05-06 12:25:53 +01:00
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abstract public function registerBundles();
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2011-01-17 19:23:32 +00:00
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/**
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2011-01-17 19:41:55 +00:00
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* Returns the directories where bundles can be found.
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2011-01-17 19:23:32 +00:00
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*
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* The order is significant and can be used by the application.
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* For instance, it can be used to override templates.
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*
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* @return array A hash with namespaces as keys and directories as values
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*/
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2010-05-06 12:25:53 +01:00
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abstract public function registerBundleDirs();
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2011-01-17 19:41:55 +00:00
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/**
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* Loads the container configuration
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*
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* @param LoaderInterface $loader A LoaderInterface instance
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*/
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2010-07-18 10:44:40 +01:00
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abstract public function registerContainerConfiguration(LoaderInterface $loader);
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2010-05-06 12:25:53 +01:00
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/**
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* Checks whether the current kernel has been booted or not.
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*
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* @return boolean $booted
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*/
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public function isBooted()
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2010-02-17 13:54:36 +00:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->booted;
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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/**
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* Boots the current kernel.
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*
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* This method boots the bundles, which MUST set
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* the DI container.
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*
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* @throws \LogicException When the Kernel is already booted
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*/
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public function boot()
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2010-02-17 13:54:36 +00:00
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{
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2010-05-07 15:09:11 +01:00
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if (true === $this->booted) {
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2010-05-06 12:25:53 +01:00
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throw new \LogicException('The kernel is already booted.');
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}
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2010-02-17 13:54:36 +00:00
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2011-01-17 15:34:43 +00:00
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require_once __DIR__.'/bootstrap.php';
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2010-05-07 18:35:08 +01:00
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2010-05-06 12:25:53 +01:00
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$this->bundles = $this->registerBundles();
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$this->bundleDirs = $this->registerBundleDirs();
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$this->container = $this->initializeContainer();
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2010-02-17 13:54:36 +00:00
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2010-08-10 20:44:04 +01:00
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// load core classes
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2010-08-11 18:35:07 +01:00
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ClassCollectionLoader::load(
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$this->container->getParameter('kernel.compiled_classes'),
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$this->container->getParameter('kernel.cache_dir'),
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'classes',
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2010-08-18 12:43:32 +01:00
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$this->container->getParameter('kernel.debug'),
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true
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2010-08-11 18:35:07 +01:00
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);
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2010-08-10 20:44:04 +01:00
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2010-05-07 15:09:11 +01:00
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foreach ($this->bundles as $bundle) {
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2010-08-10 15:59:12 +01:00
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$bundle->setContainer($this->container);
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$bundle->boot();
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2010-05-06 12:25:53 +01:00
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}
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$this->booted = true;
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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/**
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* Shutdowns the kernel.
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*
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* This method is mainly useful when doing functional testing.
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*/
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public function shutdown()
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{
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$this->booted = false;
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2010-02-17 13:54:36 +00:00
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2010-05-07 15:09:11 +01:00
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foreach ($this->bundles as $bundle) {
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2010-08-10 15:59:12 +01:00
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$bundle->shutdown();
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$bundle->setContainer(null);
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2010-05-06 12:25:53 +01:00
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}
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2010-02-17 13:54:36 +00:00
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2010-05-06 12:25:53 +01:00
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$this->container = null;
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}
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2010-04-19 08:05:11 +01:00
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2010-05-06 12:25:53 +01:00
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/**
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* Reboots the kernel.
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*
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* This method is mainly useful when doing functional testing.
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*
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* It is a shortcut for the call to shutdown() and boot().
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*/
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public function reboot()
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2010-04-19 08:05:11 +01:00
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{
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2010-05-06 12:25:53 +01:00
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$this->shutdown();
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$this->boot();
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2010-04-19 08:05:11 +01:00
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}
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2010-05-06 12:25:53 +01:00
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/**
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2010-11-06 14:13:23 +00:00
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* {@inheritdoc}
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2010-05-06 12:25:53 +01:00
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*/
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2010-11-06 14:13:23 +00:00
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public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
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2010-02-17 13:54:36 +00:00
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{
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2010-05-07 15:09:11 +01:00
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if (false === $this->booted) {
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2010-05-06 12:25:53 +01:00
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$this->boot();
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}
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2010-12-09 17:50:49 +00:00
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return $this->container->get('http_kernel')->handle($request, $type, $catch);
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2010-12-09 00:04:47 +00:00
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}
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/**
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2010-12-09 17:50:49 +00:00
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* {@inheritdoc}
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2010-12-09 00:04:47 +00:00
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*/
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public function getRequest()
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{
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2010-12-09 17:50:49 +00:00
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return $this->container->get('http_kernel')->getRequest();
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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2010-05-19 09:24:36 +01:00
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/**
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* Gets the directories where bundles can be stored.
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*
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* @return array An array of directories where bundles can be stored
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*/
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2010-05-06 12:25:53 +01:00
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public function getBundleDirs()
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2010-04-08 10:12:58 +01:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->bundleDirs;
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2010-04-08 10:12:58 +01:00
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}
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2010-02-17 13:54:36 +00:00
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2010-05-19 09:24:36 +01:00
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/**
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* Gets the registered bundle names.
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*
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* @return array An array of registered bundle names
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*/
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2010-05-06 12:25:53 +01:00
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public function getBundles()
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2010-04-25 12:18:42 +01:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->bundles;
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2010-04-25 12:18:42 +01:00
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}
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2010-08-09 14:07:05 +01:00
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/**
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* Checks if a given class name belongs to an active bundle.
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*
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* @param string $class A class name
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*
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* @return Boolean true if the class belongs to an active bundle, false otherwise
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*/
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public function isClassInActiveBundle($class)
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{
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foreach ($this->bundles as $bundle) {
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$bundleClass = get_class($bundle);
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if (0 === strpos($class, substr($bundleClass, 0, strrpos($bundleClass, '\\')))) {
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return true;
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}
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}
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return false;
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}
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2010-05-06 12:25:53 +01:00
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public function getName()
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2010-05-03 15:11:38 +01:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->name;
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2010-05-03 15:11:38 +01:00
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}
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2010-05-06 12:25:53 +01:00
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2010-06-01 09:03:50 +01:00
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public function getSafeName()
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{
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return preg_replace('/[^a-zA-Z0-9_]+/', '', $this->name);
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}
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2011-01-17 19:41:55 +00:00
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/**
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* Gets the environment.
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*
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* @return string The current environment
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*/
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2010-05-06 12:25:53 +01:00
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public function getEnvironment()
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2010-05-03 15:11:38 +01:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->environment;
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2010-05-03 15:11:38 +01:00
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}
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2010-05-06 12:25:53 +01:00
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2011-01-17 19:41:55 +00:00
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/**
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* Checks if debug mode is enabled.
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*
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* @return Boolean true if debug mode is enabled, false otherwise
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*/
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2010-05-06 12:25:53 +01:00
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public function isDebug()
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2010-03-12 10:54:22 +00:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->debug;
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2010-03-12 10:54:22 +00:00
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}
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2011-01-17 19:41:55 +00:00
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/**
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* Gets the application root dir.
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*
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* @return string The application root dir
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*/
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2010-05-06 12:25:53 +01:00
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public function getRootDir()
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2010-02-22 10:57:59 +00:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->rootDir;
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2010-02-22 10:57:59 +00:00
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}
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2011-01-17 19:41:55 +00:00
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/**
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* Gets the current container.
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*
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* @return ContainerInterface A ContainerInterface instance
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*/
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2010-05-06 12:25:53 +01:00
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public function getContainer()
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2010-02-17 13:54:36 +00:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->container;
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2010-02-17 13:54:36 +00:00
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}
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2011-01-17 19:41:55 +00:00
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/**
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* Gets the request start time (not available if debug is disabled).
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*
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* @return integer The request start timestamp
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*/
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2010-05-06 12:25:53 +01:00
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public function getStartTime()
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{
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return $this->debug ? $this->startTime : -INF;
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}
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2010-02-17 13:54:36 +00:00
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2011-01-17 19:41:55 +00:00
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/**
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* Gets the cache directory.
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*
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* @return string The cache directory
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*/
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2010-05-06 12:25:53 +01:00
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public function getCacheDir()
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2010-02-17 13:54:36 +00:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->rootDir.'/cache/'.$this->environment;
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2010-02-17 13:54:36 +00:00
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}
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2011-01-17 19:41:55 +00:00
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/**
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* Gets the log directory.
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*
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* @return string The log directory
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*/
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2010-05-06 12:25:53 +01:00
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public function getLogDir()
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2010-02-17 13:54:36 +00:00
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{
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2010-05-06 12:25:53 +01:00
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return $this->rootDir.'/logs';
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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protected function initializeContainer()
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{
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2010-06-01 09:03:50 +01:00
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$class = $this->getSafeName().ucfirst($this->environment).($this->debug ? 'Debug' : '').'ProjectContainer';
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2010-05-06 12:25:53 +01:00
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$location = $this->getCacheDir().'/'.$class;
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$reload = $this->debug ? $this->needsReload($class, $location) : false;
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2010-05-07 15:09:11 +01:00
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if ($reload || !file_exists($location.'.php')) {
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2011-01-10 16:49:00 +00:00
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$container = $this->buildContainer();
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$this->dumpContainer($container, $class, $location.'.php');
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2010-05-06 12:25:53 +01:00
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}
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2010-02-17 13:54:36 +00:00
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2010-05-06 12:25:53 +01:00
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require_once $location.'.php';
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2010-02-17 13:54:36 +00:00
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2010-08-10 15:59:12 +01:00
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$container = new $class();
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$container->set('kernel', $this);
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return $container;
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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public function getKernelParameters()
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2010-02-17 13:54:36 +00:00
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{
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2010-05-06 12:25:53 +01:00
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$bundles = array();
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2010-05-07 15:09:11 +01:00
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foreach ($this->bundles as $bundle) {
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2010-05-06 12:25:53 +01:00
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$bundles[] = get_class($bundle);
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2010-02-24 03:12:55 +00:00
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}
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2010-05-06 12:25:53 +01:00
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return array_merge(
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array(
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2010-08-10 20:44:04 +01:00
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'kernel.root_dir' => $this->rootDir,
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'kernel.environment' => $this->environment,
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'kernel.debug' => $this->debug,
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'kernel.name' => $this->name,
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'kernel.cache_dir' => $this->getCacheDir(),
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'kernel.logs_dir' => $this->getLogDir(),
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'kernel.bundle_dirs' => $this->bundleDirs,
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'kernel.bundles' => $bundles,
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'kernel.charset' => 'UTF-8',
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2010-05-06 12:25:53 +01:00
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),
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$this->getEnvParameters()
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);
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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protected function getEnvParameters()
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2010-02-17 13:54:36 +00:00
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{
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2010-05-06 12:25:53 +01:00
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$parameters = array();
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2010-05-07 15:09:11 +01:00
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foreach ($_SERVER as $key => $value) {
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2010-05-08 14:32:30 +01:00
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if ('SYMFONY__' === substr($key, 0, 9)) {
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2010-05-06 12:25:53 +01:00
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$parameters[strtolower(str_replace('__', '.', substr($key, 9)))] = $value;
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}
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}
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return $parameters;
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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protected function needsReload($class, $location)
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2010-02-17 13:54:36 +00:00
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{
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2010-05-07 15:09:11 +01:00
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if (!file_exists($location.'.meta') || !file_exists($location.'.php')) {
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2010-05-06 12:25:53 +01:00
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return true;
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}
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$meta = unserialize(file_get_contents($location.'.meta'));
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$time = filemtime($location.'.php');
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2010-05-07 15:09:11 +01:00
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foreach ($meta as $resource) {
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2010-05-08 14:32:30 +01:00
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if (!$resource->isUptodate($time)) {
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2010-05-06 12:25:53 +01:00
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return true;
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}
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}
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return false;
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2010-02-17 13:54:36 +00:00
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}
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2011-01-10 16:49:00 +00:00
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protected function buildContainer()
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2010-02-17 13:54:36 +00:00
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{
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2010-07-13 10:14:21 +01:00
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$parameterBag = new ParameterBag($this->getKernelParameters());
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2010-05-06 12:25:53 +01:00
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2010-07-15 14:11:33 +01:00
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$container = new ContainerBuilder($parameterBag);
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2010-05-07 15:09:11 +01:00
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foreach ($this->bundles as $bundle) {
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2010-08-10 15:00:49 +01:00
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$bundle->registerExtensions($container);
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2010-06-28 07:57:17 +01:00
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if ($this->debug) {
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2010-07-15 14:11:33 +01:00
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$container->addObjectResource($bundle);
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2010-06-28 07:57:17 +01:00
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}
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2010-05-06 12:25:53 +01:00
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}
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2010-07-18 10:44:40 +01:00
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if (null !== $cont = $this->registerContainerConfiguration($this->getContainerLoader($container))) {
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$container->merge($cont);
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}
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2011-01-16 07:12:36 +00:00
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$container->compile();
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2011-01-10 16:49:00 +00:00
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return $container;
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}
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2010-05-06 12:25:53 +01:00
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2011-01-10 16:49:00 +00:00
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protected function dumpContainer(ContainerBuilder $container, $class, $file)
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{
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2010-05-07 15:09:11 +01:00
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foreach (array('cache', 'logs') as $name) {
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2010-05-06 12:25:53 +01:00
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$dir = $container->getParameter(sprintf('kernel.%s_dir', $name));
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2010-05-07 15:09:11 +01:00
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if (!is_dir($dir)) {
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2010-05-08 14:32:30 +01:00
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if (false === @mkdir($dir, 0777, true)) {
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2010-05-06 12:25:53 +01:00
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die(sprintf('Unable to create the %s directory (%s)', $name, dirname($dir)));
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}
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2010-05-07 15:09:11 +01:00
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} elseif (!is_writable($dir)) {
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2010-05-06 12:25:53 +01:00
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die(sprintf('Unable to write in the %s directory (%s)', $name, $dir));
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}
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}
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// cache the container
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$dumper = new PhpDumper($container);
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$content = $dumper->dump(array('class' => $class));
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2010-05-07 15:09:11 +01:00
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if (!$this->debug) {
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2010-05-06 12:25:53 +01:00
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$content = self::stripComments($content);
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}
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$this->writeCacheFile($file, $content);
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2010-05-07 15:09:11 +01:00
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if ($this->debug) {
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2010-07-15 14:11:33 +01:00
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$container->addObjectResource($this);
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2010-05-06 12:25:53 +01:00
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// save the resources
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2010-07-15 14:11:33 +01:00
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$this->writeCacheFile($this->getCacheDir().'/'.$class.'.meta', serialize($container->getResources()));
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2010-05-06 12:25:53 +01:00
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}
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2010-02-17 13:54:36 +00:00
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}
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2010-07-18 10:44:40 +01:00
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protected function getContainerLoader(ContainerInterface $container)
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{
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$resolver = new LoaderResolver(array(
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new XmlFileLoader($container, $this->getBundleDirs()),
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new YamlFileLoader($container, $this->getBundleDirs()),
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new IniFileLoader($container, $this->getBundleDirs()),
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new PhpFileLoader($container, $this->getBundleDirs()),
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2010-08-09 14:05:30 +01:00
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new ClosureLoader($container),
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2010-07-18 10:44:40 +01:00
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));
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return new DelegatingLoader($resolver);
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}
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2010-08-10 17:46:37 +01:00
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/**
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* Removes comments from a PHP source string.
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*
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* We don't use the PHP php_strip_whitespace() function
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* as we want the content to be readable and well-formatted.
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*
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* @param string $source A PHP string
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*
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* @return string The PHP string with the comments removed
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*/
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2010-05-06 12:25:53 +01:00
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static public function stripComments($source)
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2010-02-17 13:54:36 +00:00
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{
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2010-05-07 15:09:11 +01:00
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if (!function_exists('token_get_all')) {
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2010-05-06 12:25:53 +01:00
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return $source;
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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$output = '';
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2010-05-07 15:09:11 +01:00
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foreach (token_get_all($source) as $token) {
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2010-08-10 17:46:37 +01:00
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if (is_string($token)) {
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2010-05-06 12:25:53 +01:00
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$output .= $token;
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2010-08-10 17:46:37 +01:00
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} elseif (!in_array($token[0], array(T_COMMENT, T_DOC_COMMENT))) {
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$output .= $token[1];
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2010-05-06 12:25:53 +01:00
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}
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}
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2010-02-17 13:54:36 +00:00
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2010-08-10 17:46:37 +01:00
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// replace multiple new lines with a single newline
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$output = preg_replace(array('/\s+$/Sm', '/\n+/S'), "\n", $output);
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2010-05-06 12:25:53 +01:00
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return $output;
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2010-02-17 13:54:36 +00:00
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}
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2010-05-06 12:25:53 +01:00
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protected function writeCacheFile($file, $content)
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2010-02-17 13:54:36 +00:00
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{
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2010-05-06 12:25:53 +01:00
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$tmpFile = tempnam(dirname($file), basename($file));
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2010-08-12 20:58:19 +01:00
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if (false !== @file_put_contents($tmpFile, $content) && @rename($tmpFile, $file)) {
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chmod($file, 0644);
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2010-04-02 15:47:59 +01:00
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2010-08-12 20:58:19 +01:00
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return;
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2010-06-23 06:35:46 +01:00
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}
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2010-08-12 20:58:19 +01:00
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throw new \RuntimeException(sprintf('Failed to write cache file "%s".', $file));
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2010-05-06 12:25:53 +01:00
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}
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2010-04-02 15:47:59 +01:00
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2010-05-06 12:25:53 +01:00
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public function serialize()
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{
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return serialize(array($this->environment, $this->debug));
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}
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2010-04-02 15:47:59 +01:00
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2010-05-06 12:25:53 +01:00
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public function unserialize($data)
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{
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list($environment, $debug) = unserialize($data);
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$this->__construct($environment, $debug);
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}
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2010-02-17 13:54:36 +00:00
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}
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