Update for deprecated FILE_REPLACE function (#1138)

Author: kedarkhaire

src/OauthTokenFileStorage.php

@@ -22,6 +22,7 @@
 use Drupal\Component\Serialization\Json;
 use Drupal\Core\Config\ConfigFactoryInterface;
 use Drupal\Core\File\Exception\FileException;
+use Drupal\Core\File\FileExists;
 use Drupal\Core\File\FileSystemInterface;
 use Drupal\Core\Logger\LoggerChannelInterface;
 use Drupal\apigee_edge\Exception\OauthTokenStorageException;
@@ -172,7 +173,7 @@ public function saveToken(array $data): void {
     try {
       $this->checkRequirements();
       // Write the obfuscated token data to a private file.
-      $this->fileSystem->saveData(base64_encode(Json::encode($data)), $this->tokenFilePath, FileSystemInterface::EXISTS_REPLACE);
+      $this->fileSystem->saveData(base64_encode(Json::encode($data)), $this->tokenFilePath, FileExists::Replace);
     }
     catch (FileException $e) {
       $this->logger->critical('Error saving OAuth token file.');

src/Plugin/KeyProvider/PrivateFileKeyProvider.php

@@ -20,6 +20,7 @@
 namespace Drupal\apigee_edge\Plugin\KeyProvider;
 
 use Drupal\Core\File\Exception\FileException;
+use Drupal\Core\File\FileExists;
 use Drupal\Core\File\FileSystemInterface;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Utility\Error;
@@ -145,7 +146,7 @@ public function setKeyValue(KeyInterface $key, $key_value) {
     try {
       // Save the token data.
       return $this->getFileSystem()
-        ->saveData($key_value, $file_uri, FileSystemInterface::EXISTS_REPLACE);
+        ->saveData($key_value, $file_uri, FileExists::Replace);
     }
     catch (FileException $e) {
       return FALSE;

tests/src/Kernel/OauthTokenFileStorageTest.php

@@ -21,6 +21,7 @@
 
 use Drupal\Component\Serialization\Json;
 use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\Core\File\FileExists;
 use Drupal\Core\File\FileSystemInterface;
 use Drupal\KernelTests\KernelTestBase;
 use Drupal\apigee_edge\Exception\OauthTokenStorageException;
@@ -183,7 +184,7 @@ public function testStaticCaching() {
     $stored_token['access_token'] = mb_strtolower($this->randomMachineName(32));
     \Drupal::service('file_system')->saveData(
       base64_encode(Json::encode($stored_token)),
-      $this->tokenFileUri(), FileSystemInterface::EXISTS_REPLACE);
+      $this->tokenFileUri(), FileExists::Replace);
 
     // Make sure the cached version is still returned.
     $this->assertSame($access_token, $storage->getAccessToken());