ClusterListBuilder.php in Elasticsearch Connector 8

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\EntityTypeInterface;
use Drupal\elasticsearch_connector\Entity\Cluster;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Url;

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

  /**
   * {@inheritdoc}
   */
  protected $indexStorage;

  /**
   * {@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'));
  }

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

  /**
   * {@inheritdoc}
   */
  public function load() {
    $clusters = $this->storage
      ->loadMultiple();
    $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;
    }
    $cluster_groups['cluster.lone'] = $lone_indices;
    return $cluster_groups;
  }

  /**
   * {@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) {
    $row = parent::buildRow($entity);
    $result = array();
    $status = NULL;
    if (isset($entity->cluster_id)) {
      $cluster = Cluster::load($entity->cluster_id);
      $client_info = $cluster
        ->getClusterInfo();
      if (!empty($client_info['health']) && $cluster
        ->checkClusterStatus()) {
        $status = $client_info['health']['status'];
      }
      else {
        $status = t('Not available');
      }
      $result = array(
        'data' => array(
          'type' => array(
            'data' => $this
              ->t('Cluster'),
          ),
          'title' => array(
            'data' => array(
              '#type' => 'link',
              '#title' => $entity
                ->label(),
            ) + $entity
              ->urlInfo('canonical')
              ->toRenderArray(),
          ),
          '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'),
          ),
          '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) {
    $operations = parent::getDefaultOperations($entity);
    if (isset($entity->cluster_id)) {
      $operations['info'] = array(
        'title' => $this
          ->t('Info'),
        'weight' => 20,
        'url' => new Url('entity.elasticsearch_cluster.canonical', 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
      ->load();
    $list['#type'] = 'container';
    $list['clusters'] = array(
      '#type' => 'table',
      '#header' => $this
        ->buildHeader(),
      '#rows' => array(),
      '#empty' => $this
        ->t('No clusters available. <a href="@link">Add new cluster</a>.', array(
        '@link' => \Drupal::urlGenerator()
          ->generate('entity.elasticsearch_cluster.add_form'),
      )),
    );
    foreach ($entity_groups as $cluster_group) {
      foreach ($cluster_group as $entity) {
        $list['clusters']['#rows'][$entity
          ->id()] = $this
          ->buildRow($entity);
      }
    }
    return $list;
  }

}

Classes

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