public static void toCRAWDAD(LinkTrace links, OutputStream out, double timeMul)
throws IOException {
StatefulReader<LinkEvent, Link> linkReader = links.getReader();
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(out));
Map<Link, Long> activeContacts = new AdjacencyMap.Links<Long>();
linkReader.seek(links.minTime());
for (Link l : linkReader.referenceState()) activeContacts.put(l, links.minTime());
while (linkReader.hasNext()) {
for (LinkEvent lev : linkReader.next()) {
Link l = lev.link();
if (lev.isUp()) {
activeContacts.put(l, linkReader.time());
} else {
double b = activeContacts.get(l) * timeMul;
double e = linkReader.time() * timeMul;
activeContacts.remove(l);
bw.write(l.id1() + "\t" + l.id2() + "\t" + b + "\t" + e + "\n");
}
}
}
linkReader.close();
bw.close();
}
@Override
public void convert() throws IOException {
final AdjacencyMap.Arcs<ArcEvent> to_bring_down = new AdjacencyMap.Arcs<ArcEvent>();
final StatefulWriter<ArcEvent, Arc> upper_writer = _upper.getWriter();
final StatefulReader<ArcEvent, Arc> lower_reader = _lower.getReader();
lower_reader.seek(_lower.minTime());
upper_writer.setInitState(_lower.minTime(), lower_reader.referenceState());
long last_time = _lower.minTime();
long time = last_time;
final long eta = _lower.eta();
while (lower_reader.hasNext()) {
time = lower_reader.nextTime();
if (time > last_time + eta) {
for (final ArcEvent aev : to_bring_down.values()) upper_writer.queue(last_time, aev);
to_bring_down.clear();
}
boolean first_down = true;
for (final ArcEvent aev : lower_reader.next()) { // assumes that all
// UP event come
// before all DOWN
// events
final Arc a = aev.arc();
if (aev.isUp()) {
if (to_bring_down.containsKey(a)) to_bring_down.remove(a);
else upper_writer.queue(time, aev);
} else { // down event. Just queue for next time step
if (first_down) { // first flush previous time's down events
for (final ArcEvent dev : to_bring_down.values()) upper_writer.queue(last_time, dev);
to_bring_down.clear();
first_down = false;
}
to_bring_down.put(a, aev);
}
}
upper_writer.flush(last_time);
last_time = time;
}
// flush final events
for (final ArcEvent dev : to_bring_down.values()) upper_writer.queue(last_time, dev);
upper_writer.flush();
upper_writer.setPropertiesFromTrace(_lower);
_lower.copyOverTraceInfo(upper_writer);
upper_writer.close();
lower_reader.close();
}