/**
* Return a string that describes the statistics for the top n entries, sorted by descending
* order of total time spent dealing with the query. This will always include the totals entry
* in the first position.
*
* @param n the desired number of entries to describe
* @return a string describing the statistics for the top n entries
*/
public synchronized String toStringTop(int n) {
StringBuilder out = new StringBuilder();
List<Entry> list = entries();
if (list.isEmpty()) return "<no queries executed>";
Collections.sort(list, TOTAL_TIME_DESCENDING);
int maxCountLength = COUNT_FORMAT.format(list.get(0).numQueries).length();
double totalDuration = list.get(0).queryTime;
for (Entry entry : list.subList(0, Math.min(n, list.size())))
out.append(entry.toString(maxCountLength, totalDuration)).append('\n');
return out.toString();
}
public synchronized String toString(int maxCountLength, double totalDuration) {
String formattedCount =
String.format("%" + maxCountLength + "s", COUNT_FORMAT.format(numQueries));
return FULL_ENTRY_FORMAT.format(
new Object[] {
query == null ? "TOTALS" : query,
formattedCount,
(queriesPrepared - queriesCompiled) / (double) queriesPrepared,
queryTime,
queryCompilationTime,
queryPreparationTime,
queryRunTime,
queryTime * 1000 / numQueries,
queriesCompiled == 0 ? 0 : queryCompilationTime * 1000 / queriesCompiled,
queriesPrepared == 0 ? 0 : queryPreparationTime * 1000 / queriesPrepared,
queriesRun == 0 ? 0 : queryRunTime * 1000 / queriesRun,
queryTime / totalDuration
});
}