private void mergeToHeap(
ActionCombinerValue newValList,
UserActiveHistory oldVal,
UserActiveHistory.Builder updatedBuilder) {
HashSet<String> alreadyIn = new HashSet<String>();
for (String newItem : newValList.getActRecodeMap().keySet()) {
if (updatedBuilder.getActRecordsCount() >= topNum) {
break;
}
if (!alreadyIn.contains(newItem)) {
updatedBuilder.addActRecords(newValList.getActRecodeMap().get(newItem));
alreadyIn.add(newItem);
}
}
if (oldVal != null) {
for (Recommend.UserActiveHistory.ActiveRecord eachOldVal : oldVal.getActRecordsList()) {
if (updatedBuilder.getActRecordsCount() >= topNum) {
break;
}
if (alreadyIn.contains(eachOldVal.getItem())) {
continue;
}
updatedBuilder.addActRecords(eachOldVal);
}
}
}
