protected int checkReceiving(Message m) {
if (m.getProperty(ftStr) == null) return super.checkReceiving(m);
Message old = this.getOldestMessage(true);
if (old == null) return super.checkReceiving(m);
if ((Double) old.getProperty(ftStr) < (Double) m.getProperty(ftStr))
return MessageRouter.DENIED_NO_SPACE;
return super.checkReceiving(m);
}
public int compare(Message m1, Message m2) {
// delivery probability of tuple1's message with tuple1's connection
double p1 = (Double) m1.getProperty(ftStr);
double p2 = (Double) m2.getProperty(ftStr);
if (p1 > p2) {
return 1;
} else if (p1 < p2) {
return -1;
} else return 0;
}
@Override
public RoutingInfo getRoutingInfo() {
RoutingInfo top = super.getRoutingInfo();
RoutingInfo ri1 = new RoutingInfo("DelProb =--> " + delProb);
RoutingInfo ri = new RoutingInfo("Messages FT-->");
for (Message m : this.getMessageCollection()) {
ri.addMoreInfo(new RoutingInfo(String.format("%s : %.6f", m.getId(), m.getProperty(ftStr))));
}
top.addMoreInfo(ri1);
top.addMoreInfo(ri);
return top;
}
private Connection tryOtherMessages() {
Collection<Message> msgCollection = getMessageCollection();
if (msgCollection.size() == 0) return null;
if (neighb.size() == 0) return null;
List<Message> messages = new ArrayList<Message>();
messages.addAll(msgCollection);
Collections.sort(messages, msgComparator);
double curFt;
double newFt;
Connection con = null;
for (Message m : messages) {
for (DTNHost h : neighb) {
if ((this.getDelProb() >= threshold * (((FadToSink) h.getRouter()).getDelProb()))) continue;
con = getConOf(h);
if (con == null || h.getRouter().hasMessage(m.getId())) continue;
curFt = (Double) m.getProperty(ftStr);
newFt = 1 - (1 - curFt) * (1 - delProb);
Message msg = m.replicate();
msg.updateProperty(ftStr, newFt);
if (startTransfer(msg, con) != RCV_OK) continue;
m.updateProperty(ftStr, 1 - (1 - curFt) * (1 - ((FadToSink) h.getRouter()).getDelProb()));
delProb = (1 - alpha) * delProb + alpha * ((FadToSink) h.getRouter()).getDelProb();
this.lastUpdate = SimClock.getTime();
return con;
}
}
return con;
}
public Message messageTransferred(String id, DTNHost from) {
Message m = super.messageTransferred(id, from);
if (m.getProperty(ftStr) == null) m.addProperty(ftStr, new Double(0));
return m;
}