Ui/Component using plugin in magento2

Question

I get QA review as below:

example/module-mymodule/UiC/DataProvider.php
is too similar to the Magento 2 file
magento/module-cms/magento-module-cms-103.0.0-beta32/Ui/Component/DataProvider.php
Since this file edits public function, you can avoid duplicating code using Magento 2's plugin structure: https://devdocs.magento.com/guides/v2.3/extension-dev-guide/plugins.html or use class preferences.

Can anyone explain, what it try to say? The file which they refer is below

<?php
namespace Example\MyModule\Ui\Component;
use Magento\Framework\Api\Filter;
use Magento\Framework\Api\FilterBuilder;
use Magento\Framework\Api\Search\SearchCriteriaBuilder;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\App\RequestInterface;
use Magento\Framework\AuthorizationInterface;
use Magento\Framework\View\Element\UiComponent\DataProvider\Reporting;
/**
 * Component DataProvider
 * @api
 * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
 * @since 100.0.2
 */
class DataProvider extends \Magento\Framework\View\Element\UiComponent\DataProvider\DataProvider
{
 /**
 * @var AuthorizationInterface
 */
 private $authorization;
 /**
 * @var AddFilterInterface[]
 */
 private $additionalFilterPool;
 /**
 * @param string $name
 * @param string $primaryFieldName
 * @param string $requestFieldName
 * @param Reporting $reporting
 * @param SearchCriteriaBuilder $searchCriteriaBuilder
 * @param RequestInterface $request
 * @param FilterBuilder $filterBuilder
 * @param array $meta
 * @param array $data
 * @param array $additionalFilterPool
 * @SuppressWarnings(PHPMD.ExcessiveParameterList)
 */
 public function __construct(
 $name,
 $primaryFieldName,
 $requestFieldName,
 Reporting $reporting,
 SearchCriteriaBuilder $searchCriteriaBuilder,
 RequestInterface $request,
 FilterBuilder $filterBuilder,
 array $meta = [],
 array $data = [],
 array $additionalFilterPool = []
 ) {
 parent::__construct(
 $name,
 $primaryFieldName,
 $requestFieldName,
 $reporting,
 $searchCriteriaBuilder,
 $request,
 $filterBuilder,
 $meta,
 $data
 );
 $this->meta = array_replace_recursive($meta, $this->prepareMetadata());
 $this->additionalFilterPool = $additionalFilterPool;
 }
 /**
 * @deprecated 101.0.7
 * @return AuthorizationInterface|mixed
 */
 private function getAuthorizationInstance()
 {
 if ($this->authorization === null) {
 $this->authorization = ObjectManager::getInstance()->get(AuthorizationInterface::class);
 }
 return $this->authorization;
 }
 /**
 * Prepares Meta
 *
 * @return array
 */
 public function prepareMetadata()
 {
 $metadata = [];
 /**
 * Instead of Creating Seperate ACl access, CMS authorization is used 'Magento_Cms::save'
 */
 if (!$this->getAuthorizationInstance()->isAllowed('Magento_Cms::save')) {
 $metadata = [
 'mymodule_post_columns' => [
 'arguments' => [
 'data' => [
 'config' => [
 'editorConfig' => [
 'enabled' => false
 ]
 ]
 ]
 ]
 ]
 ];
 }
 return $metadata;
 }
 /**
 * @inheritdoc
 */
 public function addFilter(Filter $filter)
 {
 if (!empty($this->additionalFilterPool[$filter->getField()])) {
 $this->additionalFilterPool[$filter->getField()]->addFilter($this->searchCriteriaBuilder, $filter);
 } else {
 parent::addFilter($filter);
 }
 }
}

Answer 1

Generally, it means you don't need to add duplicate code in your module to meet up the customisation. The customisation can be done with the Magento 2 interceptor which known as Plugin. You can apply plugin concept to all the public methods of class in Magento 2. Hope this will help.