public function process()
{
$request = $this->node->request();
if (!$request) {
return true;
}
$requestKey = $request['key'];
// Check the result data in the storage
$data = $this->node->checkData($requestKey);
if ($data) {
$this->node->notify(json_encode(['data_key' => $requestKey, 'request_key' => $requestKey]));
$this->logger->info('Result data found, notification sent', ['request_key' => $requestKey]);
return true;
}
$request['key'] = $requestKey;
$workload = json_encode($request);
if (!$this->node->checkIndex($requestKey)) {
$this->node->addToIndex($requestKey);
$this->addTaskBackground($this->function, $workload);
$this->logger->info('Task added', ['request_key' => $requestKey]);
} else {
$this->logger->info('Trying to add duplicate task', ['request_key' => $requestKey]);
}
return parent::process();
}
/**
* Method for handle data saving logic. Can be redefined in child classes.
*/
protected function saveResults()
{
$this->node->saveData($this->workload['key'], ['data' => $this->results]);
}
/**
* Method for prepare request to parent node or doing another actions. Can be redefined in child classes,
* but must return string with unique key of request. By default return the result of \Pipeline::sendRequest() call, and it is good practice.
* In this method defines which commands will requested for parent node. By default client request just resend.
* @param array $request Client request
* @return string
*/
protected function prepareRequest(array $request)
{
$this->logger->debug('Prepare request to parent node', ['key' => md5($request['key'])]);
return $this->node->sendRequest(json_encode($request));
}