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<?php |
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|
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/* |
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* |
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* Copyright 2015 gRPC authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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namespace Dudlewebs\WPMCS\GCP\Grpc; |
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|
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/** |
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* Represents an active call that sends a single message and then gets a |
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* single response. |
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* |
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* @template T of \Google\Protobuf\Internal\Message |
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*/ |
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class UnaryCall extends AbstractCall |
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{ |
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/** |
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* Start the call. |
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* |
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* @param mixed $data The data to send |
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* @param array $metadata Metadata to send with the call, if applicable |
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* (optional) |
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* @param array $options An array of options, possible keys: |
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* 'flags' => a number (optional) |
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*/ |
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public function start($data, array $metadata = [], array $options = []) |
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{ |
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$message_array = ['message' => $this->_serializeMessage($data)]; |
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if (isset($options['flags'])) { |
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$message_array['flags'] = $options['flags']; |
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} |
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$this->call->startBatch([OP_SEND_INITIAL_METADATA => $metadata, OP_SEND_MESSAGE => $message_array, OP_SEND_CLOSE_FROM_CLIENT => \true]); |
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} |
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/** |
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* Wait for the server to respond with data and a status. |
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* |
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* @return array{0: T|null, 1: \stdClass} [response data, status] |
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*/ |
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public function wait() |
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{ |
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$batch = [OP_RECV_MESSAGE => \true, OP_RECV_STATUS_ON_CLIENT => \true]; |
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if ($this->metadata === null) { |
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$batch[OP_RECV_INITIAL_METADATA] = \true; |
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} |
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$event = $this->call->startBatch($batch); |
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if ($this->metadata === null) { |
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$this->metadata = $event->metadata; |
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} |
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$status = $event->status; |
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$this->trailing_metadata = $status->metadata; |
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return [$this->_deserializeResponse($event->message), $status]; |
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} |
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/** |
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* @return mixed The metadata sent by the server |
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*/ |
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public function getMetadata() |
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{ |
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if ($this->metadata === null) { |
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$event = $this->call->startBatch([OP_RECV_INITIAL_METADATA => \true]); |
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$this->metadata = $event->metadata; |
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} |
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return $this->metadata; |
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} |
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} |
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