publishcopyfactory.cpp
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#include <cassert>
#include "publishcopyfactory.h"
#include "mqttpacket.h"
PublishCopyFactory::PublishCopyFactory(MqttPacket &packet) :
packet(packet),
orgQos(packet.getQos())
{
}
MqttPacket &PublishCopyFactory::getOptimumPacket(char max_qos)
{
if (max_qos == 0 && max_qos < packet.getQos())
{
if (!downgradedQos0PacketCopy)
downgradedQos0PacketCopy = packet.getCopy(max_qos);
assert(downgradedQos0PacketCopy->getQos() == 0);
return *downgradedQos0PacketCopy.get();
}
return packet;
}
char PublishCopyFactory::getEffectiveQos(char max_qos) const
{
const char effectiveQos = std::min<char>(orgQos, max_qos);
return effectiveQos;
}
const std::string &PublishCopyFactory::getTopic() const
{
return packet.getTopic();
}
const std::vector<std::string> &PublishCopyFactory::getSubtopics() const
{
return packet.getSubtopics();
}
bool PublishCopyFactory::getRetain() const
{
return packet.getRetain();
}
Publish PublishCopyFactory::getPublish() const
{
assert(packet.getQos() > 0);
Publish p(packet.getTopic(), packet.getPayloadCopy(), packet.getQos());
return p;
}