ClusterListBuilder.php in Elasticsearch Connector 8.2

Contains \Drupal\elasticsearch_connector\Controller\ClusterListBuilder.

Namespace

Drupal\elasticsearch_connector\Controller

File

src/Controller/ClusterListBuilder.php

<?php

/**
 * @file
 * Contains \Drupal\elasticsearch_connector\Controller\ClusterListBuilder.
 */
namespace Drupal\elasticsearch_connector\Controller;

use Drupal\Core\Config\Entity\ConfigEntityListBuilder;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Url;
use Drupal\elasticsearch_connector\ElasticSearch\ClientManagerInterface;
use Drupal\elasticsearch_connector\Entity\Cluster;
use Drupal\elasticsearch_connector\Entity\Index;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

/**
 * Provides a listing of Clusters along with their indices.
 */
class ClusterListBuilder extends ConfigEntityListBuilder {

  /**
   * EntityStorageInterface.
   */
  protected $indexStorage;

  /**
   * @var ClientManagerInterface
   */
  private $clientManager;

  /**
   * {@inheritdoc}
   */
  public function __construct(EntityTypeInterface $entity_type, EntityStorageInterface $storage, EntityStorageInterface $index_storage, ClientManagerInterface $client_manager) {
    parent::__construct($entity_type, $storage);
    $this->indexStorage = $index_storage;
    $this->clientManager = $client_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
    return new static($entity_type, $container
      ->get('entity.manager')
      ->getStorage($entity_type
      ->id()), $container
      ->get('entity.manager')
      ->getStorage('elasticsearch_index'), $container
      ->get('elasticsearch_connector.client_manager'));
  }

  /**
   * {@inheritdoc}
   */
  public function group() {

    /** @var Cluster[] $clusters */
    $clusters = $this->storage
      ->loadMultiple();

    /** @var Index[] $indices */
    $indices = $this->indexStorage
      ->loadMultiple();
    $cluster_groups = array();
    $lone_indices = array();
    foreach ($clusters as $cluster) {
      $cluster_group = array(
        'cluster.' . $cluster->cluster_id => $cluster,
      );
      foreach ($indices as $index) {
        if ($index->server == $cluster->cluster_id) {
          $cluster_group['index.' . $index->index_id] = $index;
        }
        elseif ($index->server == NULL) {
          $lone_indices['index.' . $index->index_id] = $index;
        }
      }
      $cluster_groups['cluster.' . $cluster->cluster_id] = $cluster_group;
    }
    return array(
      'clusters' => $cluster_groups,
      'lone_indexes' => $lone_indices,
    );
  }

  /**
   * {@inheritdoc}
   */
  public function buildHeader() {
    return array(
      'type' => $this
        ->t('Type'),
      'title' => $this
        ->t('Name'),
      'machine_name' => $this
        ->t('Machine Name'),
      'status' => $this
        ->t('Status'),
      'cluster_status' => $this
        ->t('Cluster Status'),
    ) + parent::buildHeader();
  }

  /**
   * {@inheritdoc}
   */
  public function buildRow(EntityInterface $entity) {
    if ($entity instanceof Cluster) {
      $client_connector = $this->clientManager
        ->getClientForCluster($entity);
    }
    elseif ($entity instanceof Index) {
      $cluster = Cluster::load($entity->server);
      $client_connector = $this->clientManager
        ->getClientForCluster($cluster);
    }
    else {
      throw new NotFoundHttpException();
    }
    $row = parent::buildRow($entity);
    $result = array();
    $status = NULL;
    if (isset($entity->cluster_id)) {
      $cluster = Cluster::load($entity->cluster_id);
      if ($client_connector
        ->isClusterOk()) {
        $cluster_health = $client_connector
          ->cluster()
          ->health();
        $version_number = $client_connector
          ->getServerVersion();
        $status = $cluster_health['status'];
      }
      else {
        $status = $this
          ->t('Not available');
        $version_number = $this
          ->t('Unknown version');
      }
      $result = array(
        'data' => array(
          'type' => array(
            'data' => $this
              ->t('Cluster'),
          ),
          'title' => array(
            'data' => array(
              '#type' => 'link',
              '#title' => $entity
                ->label() . ' (' . $version_number . ')',
              '#url' => new Url('entity.elasticsearch_cluster.edit_form', array(
                'elasticsearch_cluster' => $entity
                  ->id(),
              )),
            ),
          ),
          'machine_name' => array(
            'data' => $entity
              ->id(),
          ),
          'status' => array(
            'data' => $cluster->status ? 'Active' : 'Inactive',
          ),
          'clusterStatus' => array(
            'data' => $status,
          ),
          'operations' => $row['operations'],
        ),
        'title' => $this
          ->t('Machine name: @name', array(
          '@name' => $entity
            ->id(),
        )),
      );
    }
    elseif (isset($entity->index_id)) {
      $result = array(
        'data' => array(
          'type' => array(
            'data' => $this
              ->t('Index'),
            'class' => array(
              'es-list-index',
            ),
          ),
          'title' => array(
            'data' => $entity
              ->label(),
          ),
          'machine_name' => array(
            'data' => $entity
              ->id(),
          ),
          'status' => array(
            'data' => '',
          ),
          'clusterStatus' => array(
            'data' => '-',
          ),
          'operations' => $row['operations'],
        ),
        'title' => $this
          ->t('Machine name: @name', array(
          '@name' => $entity
            ->id(),
        )),
      );
    }
    return $result;
  }

  /**
   * {@inheritdoc}
   */
  public function getDefaultOperations(EntityInterface $entity) {
    $operations = array();
    if (isset($entity->cluster_id)) {
      $operations['info'] = array(
        'title' => $this
          ->t('Info'),
        'weight' => 19,
        'url' => new Url('entity.elasticsearch_cluster.canonical', array(
          'elasticsearch_cluster' => $entity
            ->id(),
        )),
      );
      $operations['edit'] = array(
        'title' => $this
          ->t('Edit'),
        'weight' => 20,
        'url' => new Url('entity.elasticsearch_cluster.edit_form', array(
          'elasticsearch_cluster' => $entity
            ->id(),
        )),
      );
      $operations['delete'] = array(
        'title' => $this
          ->t('Delete'),
        'weight' => 21,
        'url' => new Url('entity.elasticsearch_cluster.delete_form', array(
          'elasticsearch_cluster' => $entity
            ->id(),
        )),
      );
    }
    elseif (isset($entity->index_id)) {
      $operations['delete'] = array(
        'title' => $this
          ->t('Delete'),
        'weight' => 20,
        'url' => new Url('entity.elasticsearch_index.delete_form', array(
          'elasticsearch_index' => $entity
            ->id(),
        )),
      );
    }
    return $operations;
  }

  /**
   * {@inheritdoc}
   */
  public function render() {
    $entity_groups = $this
      ->group();
    $rows = array();
    foreach ($entity_groups['clusters'] as $cluster_group) {
      foreach ($cluster_group as $entity) {
        $rows[$entity
          ->id()] = $this
          ->buildRow($entity);
      }
    }
    $list['#type'] = 'container';
    $list['#attached']['library'][] = 'elasticsearch_connector/drupal.elasticsearch_connector.ec_index';
    $list['clusters'] = array(
      '#type' => 'table',
      '#header' => $this
        ->buildHeader(),
      '#rows' => $rows,
      '#empty' => $this
        ->t('No clusters available. <a href="@link">Add new cluster</a>.', array(
        '@link' => \Drupal::urlGenerator()
          ->generate('entity.elasticsearch_cluster.add_form'),
      )),
    );
    return $list;
  }

}

Classes

Name	Description
ClusterListBuilder	Provides a listing of Clusters along with their indices.