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<?php /** * Copyright 2024 Google Inc. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Google\Cloud\Core; use \Google\Protobuf\Internal\Message; use Google\ApiCore\OperationResponse; use Google\ApiCore\PagedListResponse; use Google\ApiCore\ServerStream; use Google\Cloud\Core\Exception\ServiceException; use Google\Rpc\BadRequest; use Google\Rpc\Code; use Google\Rpc\RetryInfo; /** * @internal * Encapsulates shared functionality of classes that need to send * and process requests and responses. */ trait RequestProcessorTrait { /** * @var array Map of error metadata types to RPC wrappers. */ private $metadataTypes = [ 'google.rpc.retryinfo-bin' => RetryInfo::class, 'google.rpc.badrequest-bin' => BadRequest::class ]; /** * Serializes a gRPC response. * * @param mixed $response * @return \Generator|OperationResponse|array|null */ private function handleResponse($response) { if ($response instanceof PagedListResponse) { $response = $response->getPage()->getResponseObject(); } if ($response instanceof Message) { return $this->serializer->encodeMessage($response); } if ($response instanceof OperationResponse) { return $response; } if ($response instanceof ServerStream) { return $this->handleStream($response); } return null; } /** * Handles a streaming response. * * @param ServerStream $response * @return \Generator|array|null * @throws Exception\ServiceException */ private function handleStream(ServerStream $response) { try { foreach ($response->readAll() as $count => $result) { $res = $this->serializer->encodeMessage($result); yield $res; } } catch (\Exception $ex) { throw $this->convertToGoogleException($ex); } } /** * Convert a ApiCore exception to a Google Exception. * * @param \Exception $ex * @return ServiceException */ private function convertToGoogleException(\Exception $ex): ServiceException { switch ($ex->getCode()) { case Code::INVALID_ARGUMENT: $exception = Exception\BadRequestException::class; break; case Code::NOT_FOUND: case Code::UNIMPLEMENTED: $exception = Exception\NotFoundException::class; break; case Code::ALREADY_EXISTS: $exception = Exception\ConflictException::class; break; case Code::FAILED_PRECONDITION: $exception = Exception\FailedPreconditionException::class; break; case Code::UNKNOWN: $exception = Exception\ServerException::class; break; case Code::INTERNAL: $exception = Exception\ServerException::class; break; case Code::ABORTED: $exception = Exception\AbortedException::class; break; case Code::DEADLINE_EXCEEDED: $exception = Exception\DeadlineExceededException::class; break; default: $exception = Exception\ServiceException::class; break; } $metadata = []; if (method_exists($ex, 'getMetadata') && $ex->getMetadata()) { foreach ($ex->getMetadata() as $type => $binaryValue) { if (!isset($this->metadataTypes[$type])) { continue; } $metadataElement = new $this->metadataTypes[$type](); $metadataElement->mergeFromString($binaryValue[0]); $metadata[] = $this->serializer->encodeMessage($metadataElement); } } return new $exception($ex->getMessage(), $ex->getCode(), $ex, $metadata); } }
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