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();
}
public static void fromCRAWDAD(
LinkTrace links,
InputStream in,
double timeMul,
long ticsPerSecond,
long offset,
IdGenerator idGen)
throws IOException {
StatefulWriter<LinkEvent, Link> linkWriter = links.getWriter();
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String line;
while ((line = br.readLine()) != null) {
String[] elems = line.split("[ \t]+");
Integer id1 = idGen.getInternalId(elems[0]);
Integer id2 = idGen.getInternalId(elems[1]);
long begin = (long) (Long.parseLong(elems[2]) * timeMul) + offset;
long end = (long) (Long.parseLong(elems[3]) * timeMul) + offset;
linkWriter.queue(begin, new LinkEvent(id1, id2, LinkEvent.UP));
linkWriter.queue(end, new LinkEvent(id1, id2, LinkEvent.DOWN));
}
linkWriter.flush();
linkWriter.setProperty(Trace.timeUnitKey, Units.toTimeUnit(ticsPerSecond));
idGen.writeTraceInfo(linkWriter);
linkWriter.close();
br.close();
}