void Handle (DHT& dht, const Host& host, const Packet& pckt)
{
Key k = pckt.GetArg<Key>(DHT_GET_KEY);
pf_log[W_DHT] << "Get received with key " << k;
if(dht.GetStorage()->hasKey(k))
{
pf_log[W_DHT] << "Answer with data " << dht.GetStorage()->getInfo(k)->GetStr();
Packet get_ack(DHTGetAckType, dht.GetMe(), host.GetKey());
get_ack.SetArg(DHT_GET_ACK_KEY, k);
get_ack.SetArg(DHT_GET_ACK_DATA, dht.GetStorage()->getInfo(k));
if(!dht.GetChimera()->Send(host, get_ack))
pf_log[W_DHT] << "Send get ACK message failed!";
return;
}
pf_log[W_DHT] << "Data not in cache, try to relay to a closest host.";
if(!dht.GetChimera()->Route(pckt))
{
pf_log[W_DHT] << "I'm the owner and the key is unknow, answer with GET_NACK.";
Packet get_nack(DHTGetNAckType, dht.GetMe(), host.GetKey());
get_nack.SetArg(DHT_GET_NACK_KEY, k);
if(!dht.GetChimera()->Send(host, get_nack))
pf_log[W_DHT] << "Send get NACK message failed!";
return;
}
pf_log[W_DHT] << "GET relayed.";
}
void Handle (DHT& dht, const Host&, const Packet& pckt)
{
Key k = pckt.GetArg<Key>(DHT_UNPUBLISH_KEY);
pf_log[W_DHT] << "Got Unpublish message for key " << k;
Data *data = pckt.GetArg<Data*>(DHT_UNPUBLISH_DATA);
pf_log[W_DHT] << "Data: " << data->GetStr();
try {
dht.GetStorage()->removeInfo(k, data);
}
catch(Storage::WrongDataType e) {
pf_log[W_DHT] << "Asked to remove wrong data type, abord.";
return;
}
/* Repeat unpublish on redondancy hosts */
Packet replicate(DHTRepeatUType, dht.GetMe());
replicate.SetArg(DHT_REPEAT_U_KEY, k);
replicate.SetArg(DHT_REPEAT_U_DATA, data);
dht.GetChimera()->SendToNeighbours(dht.REDONDANCY, replicate);
}
