public function start()
{
$packet = new PublishRequestPacket();
$packet->setTopic($this->message->getTopic());
$packet->setPayload($this->message->getPayload());
$packet->setRetained($this->message->isRetained());
$packet->setDuplicate($this->message->isDuplicate());
$packet->setQosLevel($this->message->getQosLevel());
if ($this->message->getQosLevel() === 0) {
$this->succeed($this->message);
} else {
$packet->setIdentifier($this->identifier);
}
return $packet;
}
/**
* Calls the given generator periodically and publishes the return value.
*
* @param int $interval
* @param Message $message
* @param callable $generator
*
* @return ExtendedPromiseInterface
*/
public function publishPeriodically($interval, Message $message, callable $generator)
{
if (!$this->isConnected) {
return new RejectedPromise(new \LogicException('The client is not connected.'));
}
$deferred = new Deferred();
$this->timer[] = $this->loop->addPeriodicTimer($interval, function () use($message, $generator, $deferred) {
$this->publish($message->withPayload($generator($message->getTopic())))->then(function ($value) use($deferred) {
$deferred->notify($value);
}, function (\Exception $e) use($deferred) {
$deferred->reject($e);
});
});
return $deferred->promise();
}
