Issue #2120505 by tstoeckler, dawehner: Remove MatcherDumper::MAX_PARTS.

core/lib/Drupal/Core/Routing/MatcherDumper.php

@@ -16,11 +16,6 @@
  */
 class MatcherDumper implements MatcherDumperInterface {
 
-  /**
-   * The maximum number of path elements for a route pattern;
-   */
-  const MAX_PARTS = 9;
-
   /**
    * The database connection to which to dump route information.
    *

core/lib/Drupal/Core/Routing/RouteProvider.php

@@ -181,7 +181,7 @@ public function getRoutesByNames($names, $parameters = array()) {
   public function getCandidateOutlines(array $parts) {
     $number_parts = count($parts);
     $ancestors = array();
-    $length =  $number_parts - 1;
+    $length = $number_parts - 1;
     $end = (1 << $number_parts) - 1;
 
     // The highest possible mask is a 1 bit for every part of the path. We will
@@ -240,9 +240,9 @@ public function getRoutesByPattern($pattern) {
   protected function getRoutesByPath($path) {
     // Filter out each empty value, though allow '0' and 0, which would be
     // filtered out by empty().
-    $parts = array_slice(array_filter(explode('/', $path), function($value) {
+    $parts = array_values(array_filter(explode('/', $path), function($value) {
       return $value !== NULL && $value !== '';
-    }), 0, MatcherDumper::MAX_PARTS);
+    }));
 
     $ancestors = $this->getCandidateOutlines($parts);
 

core/modules/system/lib/Drupal/system/Tests/Routing/RouteProviderTest.php

@@ -397,4 +397,26 @@ protected function testRouteByName() {
     $this->assertEqual($routes['route_d']->getPath(), '/path/three');
   }
 
+  /**
+   * Ensures that the routing system is capable of extreme long patterns.
+   */
+  public function testGetRoutesByPatternWithLongPatterns() {
+    $connection = Database::getConnection();
+    $provider = new RouteProvider($connection, 'test_routes');
+
+    $this->fixtures->createTables($connection);
+
+    $dumper = new MatcherDumper($connection, 'test_routes');
+    $collection = new RouteCollection();
+    $collection->add('long_pattern', new Route('/test/{v1}/test2/{v2}/test3/{v3}/{v4}/{v5}/{v6}/test4'));
+    $dumper->addRoutes($collection);
+    $dumper->dump();
+
+    $result = $provider->getRoutesByPattern('/test/1/test2/2/test3/3/4/5/6/test4');
+    $this->assertEqual($result->count(), 1);
+    // We can't compare the values of the routes directly, nor use
+    // spl_object_hash() because they are separate instances.
+    $this->assertEqual(serialize($result->get('long_pattern')), serialize($collection->get('long_pattern')), 'The right route was found.');
+  }
+
 }