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<?php
/*
*
* Copyright 2018 gRPC authors.
*
* 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 Grpc\Gcp;
/**
* Represents an active call that sends a single message and then gets a
* single response.
*/
class GCPUnaryCall extends GcpBaseCall
{
protected function createRealCall($channel)
{
$this->real_call = new \Grpc\UnaryCall($channel, $this->method, $this->deserialize, $this->options);
$this->has_real_call = true;
return $this->real_call;
}
/**
* Pick a channel and start the call.
*
* @param mixed $data The data to send
* @param array $metadata Metadata to send with the call, if applicable
* (optional)
* @param array $options An array of options, possible keys:
* 'flags' => a number (optional)
*/
public function start($argument, $metadata, $options)
{
$channel_ref = $this->_rpcPreProcess($argument);
$real_channel = $channel_ref->getRealChannel($this->gcp_channel->credentials);
$this->createRealCall($real_channel);
$this->real_call->start($argument, $metadata, $options);
}
/**
* Wait for the server to respond with data and a status.
*
* @return array [response data, status]
*/
public function wait()
{
list($response, $status) = $this->real_call->wait();
$this->_rpcPostProcess($status, $response);
return [$response, $status];
}
/**
* @return mixed The metadata sent by the server
*/
public function getMetadata()
{
return $this->real_call->getMetadata();
}
}