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<?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|string[] $name The route name or an array of route names
*/
public function remove($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.
*/
public function addCollection(self $collection)
{
// we need to remove all routes with the same names first because just replacing them
// would not place the new route at the end of the merged array
foreach ($collection->all() as $name => $route) {
unset($this->routes[$name]);
$this->routes[$name] = $route;
}
foreach ($collection->getResources() as $resource) {
$this->addResource($resource);
}
}
/**
* 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);
}
}
/**
* Adds a prefix to the name of all the routes within in the collection.
*/
public function addNamePrefix(string $prefix)
{
$prefixedRoutes = array();
foreach ($this->routes as $name => $route) {
$prefixedRoutes[$prefix.$name] = $route;
if (null !== $name = $route->getDefault('_canonical_route')) {
$route->setDefault('_canonical_route', $prefix.$name);
}
}
$this->routes = $prefixedRoutes;
}
/**
* 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|string[] $schemes The scheme or an array of schemes
*/
public function setSchemes($schemes)
{
foreach ($this->routes as $route) {
$route->setSchemes($schemes);
}
}
/**
* Sets the HTTP methods (e.g. 'POST') all child routes are restricted to.
*
* @param string|string[] $methods The method or an array of methods
*/
public function setMethods($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_values($this->resources);
}
/**
* Adds a resource for this collection. If the resource already exists
* it is not added.
*/
public function addResource(ResourceInterface $resource)
{
$key = (string) $resource;
if (!isset($this->resources[$key])) {
$this->resources[$key] = $resource;
}
}
}