MatcherDumper.php in Zircon Profile 8

Contains \Drupal\Core\Routing\MatcherDumper.

Namespace

Drupal\Core\Routing

File

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

<?php

/**
 * @file
 * Contains \Drupal\Core\Routing\MatcherDumper.
 */
namespace Drupal\Core\Routing;

use Drupal\Core\State\StateInterface;
use Symfony\Component\Routing\RouteCollection;
use Drupal\Core\Database\Connection;

/**
 * Dumps Route information to a database table.
 */
class MatcherDumper implements MatcherDumperInterface {

  /**
   * The database connection to which to dump route information.
   *
   * @var \Drupal\Core\Database\Connection
   */
  protected $connection;

  /**
   * The routes to be dumped.
   *
   * @var \Symfony\Component\Routing\RouteCollection
   */
  protected $routes;

  /**
   * The state.
   *
   * @var \Drupal\Core\State\StateInterface
   */
  protected $state;

  /**
   * The name of the SQL table to which to dump the routes.
   *
   * @var string
   */
  protected $tableName;

  /**
   * Construct the MatcherDumper.
   *
   * @param \Drupal\Core\Database\Connection $connection
   *   The database connection which will be used to store the route
   *   information.
   * @param \Drupal\Core\State\StateInterface $state
   *   The state.
   * @param string $table
   *   (optional) The table to store the route info in. Defaults to 'router'.
   */
  public function __construct(Connection $connection, StateInterface $state, $table = 'router') {
    $this->connection = $connection;
    $this->state = $state;
    $this->tableName = $table;
  }

  /**
   * {@inheritdoc}
   */
  public function addRoutes(RouteCollection $routes) {
    if (empty($this->routes)) {
      $this->routes = $routes;
    }
    else {
      $this->routes
        ->addCollection($routes);
    }
  }

  /**
   * Dumps a set of routes to the router table in the database.
   *
   * Available options:
   * - provider: The route grouping that is being dumped. All existing
   *   routes with this provider will be deleted on dump.
   * - base_class: The base class name.
   *
   * @param array $options
   *   An array of options.
   */
  public function dump(array $options = array()) {

    // Convert all of the routes into database records.
    // Accumulate the menu masks on top of any we found before.
    $masks = array_flip($this->state
      ->get('routing.menu_masks.' . $this->tableName, array()));

    // Delete any old records first, then insert the new ones. That avoids
    // stale data. The transaction makes it atomic to avoid unstable router
    // states due to random failures.
    $transaction = $this->connection
      ->startTransaction();
    try {

      // We don't use truncate, because it is not guaranteed to be transaction
      // safe.
      $this->connection
        ->delete($this->tableName)
        ->execute();

      // Split the routes into chunks to avoid big INSERT queries.
      $route_chunks = array_chunk($this->routes
        ->all(), 50, TRUE);
      foreach ($route_chunks as $routes) {
        $insert = $this->connection
          ->insert($this->tableName)
          ->fields(array(
          'name',
          'fit',
          'path',
          'pattern_outline',
          'number_parts',
          'route',
        ));
        $names = array();
        foreach ($routes as $name => $route) {

          /** @var \Symfony\Component\Routing\Route $route */
          $route
            ->setOption('compiler_class', '\\Drupal\\Core\\Routing\\RouteCompiler');

          /** @var \Drupal\Core\Routing\CompiledRoute $compiled */
          $compiled = $route
            ->compile();

          // The fit value is a binary number which has 1 at every fixed path
          // position and 0 where there is a wildcard. We keep track of all such
          // patterns that exist so that we can minimize the number of path
          // patterns we need to check in the RouteProvider.
          $masks[$compiled
            ->getFit()] = 1;
          $names[] = $name;
          $values = array(
            'name' => $name,
            'fit' => $compiled
              ->getFit(),
            'path' => $route
              ->getPath(),
            'pattern_outline' => $compiled
              ->getPatternOutline(),
            'number_parts' => $compiled
              ->getNumParts(),
            'route' => serialize($route),
          );
          $insert
            ->values($values);
        }

        // Insert all new routes.
        $insert
          ->execute();
      }
    } catch (\Exception $e) {
      $transaction
        ->rollback();
      watchdog_exception('Routing', $e);
      throw $e;
    }

    // Sort the masks so they are in order of descending fit.
    $masks = array_keys($masks);
    rsort($masks);
    $this->state
      ->set('routing.menu_masks.' . $this->tableName, $masks);
    $this->routes = NULL;
  }

  /**
   * Gets the routes to match.
   *
   * @return \Symfony\Component\Routing\RouteCollection
   *   A RouteCollection instance representing all routes currently in the
   *   dumper.
   */
  public function getRoutes() {
    return $this->routes;
  }

}

Classes

Name	Description
MatcherDumper	Dumps Route information to a database table.