private void _benchmark(Lookup lookup, Map<String, Integer> ref, boolean estimate, Bench bench)
throws Exception {
long start = System.currentTimeMillis();
lookup.build(getTFIT());
long buildTime = System.currentTimeMillis() - start;
TermFreqIterator tfit = getTFIT();
long elapsed = 0;
while (tfit.hasNext()) {
String key = tfit.next();
// take only the first part of the key
int len = key.length() > 4 ? key.length() / 3 : 2;
String prefix = key.substring(0, len);
start = System.nanoTime();
List<LookupResult> res = lookup.lookup(prefix, true, 10);
elapsed += System.nanoTime() - start;
assertTrue(res.size() > 0);
for (LookupResult lr : res) {
assertTrue(lr.key.startsWith(prefix));
}
if (ref != null) { // verify the counts
Integer Cnt = ref.get(key);
if (Cnt == null) { // first pass
ref.put(key, res.size());
} else {
assertEquals(key + ", prefix: " + prefix, Cnt.intValue(), res.size());
}
}
}
if (estimate) {
RamUsageEstimator rue = new RamUsageEstimator();
long size = rue.estimateRamUsage(lookup);
System.err.println(lookup.getClass().getSimpleName() + " - size=" + size);
}
if (bench != null) {
bench.buildTime += buildTime;
bench.lookupTime += elapsed;
}
}