122 lines
3.3 KiB
PHP
122 lines
3.3 KiB
PHP
<?php
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namespace Symfony\Components\Routing\Loader;
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use Symfony\Components\Routing\RouteCollection;
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use Symfony\Components\Routing\Route;
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use Symfony\Components\Routing\FileResource;
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use Symfony\Components\Yaml\Yaml;
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/*
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* This file is part of the symfony framework.
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*
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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/**
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* YamlFileLoader loads Yaml routing files.
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*
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* @package symfony
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* @subpackage routing
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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*/
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class YamlFileLoader extends FileLoader
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{
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/**
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* Loads a Yaml file.
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*
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* @param string $file A Yaml file path
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*
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* @return RouteCollection A RouteCollection instance
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*
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* @throws \InvalidArgumentException When route can't be parsed
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*/
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public function load($file)
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{
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$path = $this->findFile($file);
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$config = $this->loadFile($path);
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$collection = new RouteCollection();
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$collection->addResource(new FileResource($path));
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foreach ($config as $name => $config)
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{
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if (isset($config['resource']))
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{
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$this->parseImport($collection, $name, $config, $path);
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}
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elseif (isset($config['pattern']))
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{
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$this->parseRoute($collection, $name, $config, $path);
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}
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else
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{
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throw new \InvalidArgumentException(sprintf('Unable to parse the "%s" route.', $name));
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}
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}
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return $collection;
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}
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/**
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* @throws \InvalidArgumentException When config pattern is not defined for the given route
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*/
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protected function parseRoute(RouteCollection $collection, $name, $config, $file)
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{
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$defaults = isset($config['defaults']) ? $config['defaults'] : array();
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$requirements = isset($config['requirements']) ? $config['requirements'] : array();
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$options = isset($config['options']) ? $config['options'] : array();
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if (!isset($config['pattern']))
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{
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throw new \InvalidArgumentException(sprintf('You must define a "pattern" for the "%s" route.', $name));
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}
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$route = new Route($config['pattern'], $defaults, $requirements, $options);
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$collection->addRoute($name, $route);
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}
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/**
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* @throws \InvalidArgumentException When import resource is not defined
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*/
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protected function parseImport(RouteCollection $collection, $name, $import, $file)
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{
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if (!isset($import['resource']))
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{
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throw new \InvalidArgumentException(sprintf('You must define a "resource" when importing (%s).', $name));
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}
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$class = null;
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if (isset($import['class']) && $import['class'] !== get_class($this))
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{
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$class = $import['class'];
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}
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else
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{
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// try to detect loader with the extension
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switch (pathinfo($import['resource'], PATHINFO_EXTENSION))
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{
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case 'xml':
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$class = 'Symfony\\Components\\Routing\\Loader\\XmlFileLoader';
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break;
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}
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}
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$loader = null === $class ? $this : new $class($this->paths);
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$importedFile = $this->getAbsolutePath($import['resource'], dirname($file));
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$collection->addCollection($loader->load($importedFile), isset($import['prefix']) ? $import['prefix'] : null);
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}
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protected function loadFile($file)
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{
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return Yaml::load($file);
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}
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}
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