Sae.php

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<?php
 
namespace Drupal\dkan_metastore\Factory;
 
use Contracts\FactoryInterface;
use Drupal\dkan_data\Storage\Data;
use Drupal\dkan_schema\SchemaRetriever;
use Sae\Sae as Engine;
 
class Sae implements FactoryInterface {
 
  private $engines = [];
 
  private $storage;
 
  private $schemaRetriever;
 
  public function __construct(SchemaRetriever $schemaRetriever, Data $storage) {
    $this->schemaRetriever = $schemaRetriever;
    $this->storage = $storage;
  }
 
  public function getInstance(string $identifier, array $config = []) {
    if (!isset($this->engines[$identifier])) {
      $this->engines[$identifier] = new Engine($this->getStorage($identifier), $this->getJsonSchema($identifier));
    }
    return $this->engines[$identifier];
  }
 
  private function getJsonSchema($schema_id) {
 
    // @Todo: mechanism to validate against additional schemas. For now,
    // validate against the empty object, as it accepts any valid json.
    if ($schema_id != 'dataset') {
      return '{ }';
    }
 
    return $this->schemaRetriever->retrieve('dataset');
  }
 
  private function getStorage($schema_id) {
    $this->storage->setSchema($schema_id);
    return $this->storage;
  }
 
}