Doctrine\ODM\MongoDB\DocumentManager::getConfiguration PHP Method

    public function getConfiguration()
    {
        return $this->config;
    }

 /**
  * @param  \Symfony\Component\HttpKernel\Bundle\BundleInterface $bundle
  * @param  string                                               $document
  * @param  array                                                $fields
  * @param  Boolean                                              $withRepository
  * @throws \RuntimeException
  */
 public function generate(BundleInterface $bundle, $document, array $fields, $withRepository)
 {
     $config = $this->documentManager->getConfiguration();
     $config->addDocumentNamespace($bundle->getName(), $bundle->getNamespace() . '\\Document');
     $documentClass = $config->getDocumentNamespace($bundle->getName()) . '\\' . $document;
     $documentPath = $bundle->getPath() . '/Document/' . str_replace('\\', '/', $document) . '.php';
     if (file_exists($documentPath)) {
         throw new \RuntimeException(sprintf('Document "%s" already exists.', $documentClass));
     }
     $class = new ClassMetadataInfo($documentClass);
     if ($withRepository) {
         $class->setCustomRepositoryClass($documentClass . 'Repository');
     }
     $class->mapField(array('fieldName' => 'id', 'type' => 'integer', 'id' => true));
     $class->setIdGeneratorType(ClassMetadataInfo::GENERATOR_TYPE_AUTO);
     foreach ($fields as $field) {
         $class->mapField($field);
     }
     $documentGenerator = $this->getDocumentGenerator();
     $documentCode = $documentGenerator->generateDocumentClass($class);
     $this->filesystem->mkdir(dirname($documentPath));
     file_put_contents($documentPath, rtrim($documentCode) . PHP_EOL, LOCK_EX);
     if ($withRepository) {
         $path = $bundle->getPath() . str_repeat('/..', substr_count(get_class($bundle), '\\'));
         $this->getRepositoryGenerator()->writeDocumentRepositoryClass($class->customRepositoryClassName, $path);
     }
 }