--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Routing;
+
+use Symfony\Component\Config\Resource\ResourceInterface;
+
+/**
+ * A RouteCollection represents a set of Route instances.
+ *
+ * When adding a route at the end of the collection, an existing route
+ * with the same name is removed first. So there can only be one route
+ * with a given name.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Tobias Schultze <http://tobion.de>
+ */
+class RouteCollection implements \IteratorAggregate, \Countable
+{
+ /**
+ * @var Route[]
+ */
+ private $routes = array();
+
+ /**
+ * @var array
+ */
+ private $resources = array();
+
+ public function __clone()
+ {
+ foreach ($this->routes as $name => $route) {
+ $this->routes[$name] = clone $route;
+ }
+ }
+
+ /**
+ * Gets the current RouteCollection as an Iterator that includes all routes.
+ *
+ * It implements \IteratorAggregate.
+ *
+ * @see all()
+ *
+ * @return \ArrayIterator|Route[] An \ArrayIterator object for iterating over routes
+ */
+ public function getIterator()
+ {
+ return new \ArrayIterator($this->routes);
+ }
+
+ /**
+ * Gets the number of Routes in this collection.
+ *
+ * @return int The number of routes
+ */
+ public function count()
+ {
+ return count($this->routes);
+ }
+
+ /**
+ * Adds a route.
+ *
+ * @param string $name The route name
+ * @param Route $route A Route instance
+ */
+ public function add($name, Route $route)
+ {
+ unset($this->routes[$name]);
+
+ $this->routes[$name] = $route;
+ }
+
+ /**
+ * Returns all routes in this collection.
+ *
+ * @return Route[] An array of routes
+ */
+ public function all()
+ {
+ return $this->routes;
+ }
+
+ /**
+ * Gets a route by name.
+ *
+ * @param string $name The route name
+ *
+ * @return Route|null A Route instance or null when not found
+ */
+ public function get($name)
+ {
+ return isset($this->routes[$name]) ? $this->routes[$name] : null;
+ }
+
+ /**
+ * Removes a route or an array of routes by name from the collection.
+ *
+ * @param string|array $name The route name or an array of route names
+ */
+ public function remove($name)
+ {
+ foreach ((array) $name as $n) {
+ unset($this->routes[$n]);
+ }
+ }
+
+ /**
+ * Adds a route collection at the end of the current set by appending all
+ * routes of the added collection.
+ *
+ * @param RouteCollection $collection A RouteCollection instance
+ */
+ public function addCollection(RouteCollection $collection)
+ {
+ // we need to remove all routes with the same names first because just replacing them
+ // would not place the new route at the end of the merged array
+ foreach ($collection->all() as $name => $route) {
+ unset($this->routes[$name]);
+ $this->routes[$name] = $route;
+ }
+
+ $this->resources = array_merge($this->resources, $collection->getResources());
+ }
+
+ /**
+ * Adds a prefix to the path of all child routes.
+ *
+ * @param string $prefix An optional prefix to add before each pattern of the route collection
+ * @param array $defaults An array of default values
+ * @param array $requirements An array of requirements
+ */
+ public function addPrefix($prefix, array $defaults = array(), array $requirements = array())
+ {
+ $prefix = trim(trim($prefix), '/');
+
+ if ('' === $prefix) {
+ return;
+ }
+
+ foreach ($this->routes as $route) {
+ $route->setPath('/'.$prefix.$route->getPath());
+ $route->addDefaults($defaults);
+ $route->addRequirements($requirements);
+ }
+ }
+
+ /**
+ * Sets the host pattern on all routes.
+ *
+ * @param string $pattern The pattern
+ * @param array $defaults An array of default values
+ * @param array $requirements An array of requirements
+ */
+ public function setHost($pattern, array $defaults = array(), array $requirements = array())
+ {
+ foreach ($this->routes as $route) {
+ $route->setHost($pattern);
+ $route->addDefaults($defaults);
+ $route->addRequirements($requirements);
+ }
+ }
+
+ /**
+ * Sets a condition on all routes.
+ *
+ * Existing conditions will be overridden.
+ *
+ * @param string $condition The condition
+ */
+ public function setCondition($condition)
+ {
+ foreach ($this->routes as $route) {
+ $route->setCondition($condition);
+ }
+ }
+
+ /**
+ * Adds defaults to all routes.
+ *
+ * An existing default value under the same name in a route will be overridden.
+ *
+ * @param array $defaults An array of default values
+ */
+ public function addDefaults(array $defaults)
+ {
+ if ($defaults) {
+ foreach ($this->routes as $route) {
+ $route->addDefaults($defaults);
+ }
+ }
+ }
+
+ /**
+ * Adds requirements to all routes.
+ *
+ * An existing requirement under the same name in a route will be overridden.
+ *
+ * @param array $requirements An array of requirements
+ */
+ public function addRequirements(array $requirements)
+ {
+ if ($requirements) {
+ foreach ($this->routes as $route) {
+ $route->addRequirements($requirements);
+ }
+ }
+ }
+
+ /**
+ * Adds options to all routes.
+ *
+ * An existing option value under the same name in a route will be overridden.
+ *
+ * @param array $options An array of options
+ */
+ public function addOptions(array $options)
+ {
+ if ($options) {
+ foreach ($this->routes as $route) {
+ $route->addOptions($options);
+ }
+ }
+ }
+
+ /**
+ * Sets the schemes (e.g. 'https') all child routes are restricted to.
+ *
+ * @param string|array $schemes The scheme or an array of schemes
+ */
+ public function setSchemes($schemes)
+ {
+ foreach ($this->routes as $route) {
+ $route->setSchemes($schemes);
+ }
+ }
+
+ /**
+ * Sets the HTTP methods (e.g. 'POST') all child routes are restricted to.
+ *
+ * @param string|array $methods The method or an array of methods
+ */
+ public function setMethods($methods)
+ {
+ foreach ($this->routes as $route) {
+ $route->setMethods($methods);
+ }
+ }
+
+ /**
+ * Returns an array of resources loaded to build this collection.
+ *
+ * @return ResourceInterface[] An array of resources
+ */
+ public function getResources()
+ {
+ return array_unique($this->resources);
+ }
+
+ /**
+ * Adds a resource for this collection.
+ *
+ * @param ResourceInterface $resource A resource instance
+ */
+ public function addResource(ResourceInterface $resource)
+ {
+ $this->resources[] = $resource;
+ }
+}
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