private long calculateQuantity(List<StockCardEntry> stockCardEntryList) {
long result = 0;
for (StockCardEntry entry : stockCardEntryList) {
result += entry.getQuantity();
}
return result;
}
private String getExpirationDateFromStockCardEntry(StockCardEntry entry) {
Optional<StockCardEntryKV> stockCardEntryKVOptional =
from(entry.getKeyValues())
.firstMatch(
new Predicate<StockCardEntryKV>() {
@Override
public boolean apply(StockCardEntryKV input) {
return EXPIRATION_DATES.equalsIgnoreCase(input.getKeyColumn());
}
});
if (stockCardEntryKVOptional.isPresent()) {
return stockCardEntryKVOptional.get().getValueColumn();
}
return StringUtils.EMPTY;
}