Java tutorial
/** * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package richtercloud.travis.oraclejdk.currency.format.parse.issue; import com.google.common.base.Joiner; import com.google.common.collect.Sets; import java.text.NumberFormat; import java.text.ParseException; import java.util.AbstractMap; import java.util.Arrays; import java.util.Currency; import java.util.HashSet; import java.util.LinkedHashSet; import java.util.Locale; import java.util.Map.Entry; import java.util.Set; import org.junit.Assert; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * * @author richter */ public class NewMain { private final static Logger LOGGER = LoggerFactory.getLogger(NewMain.class); /** * @param args the command line arguments */ public static void main(String[] args) { String input = "jfklds f fkd 5 jkfdls f "; int inputResult = test(input); Assert.assertEquals(15, inputResult); input = "jfklds f fkd 5 jkfdls f "; inputResult = test(input); Assert.assertEquals(1, inputResult); } private static int test(String input) { Set<String> inputSplits = new LinkedHashSet<>(Arrays.asList(input.split("[\\s]+"))); LOGGER.debug(String.format("input split is '%s'", inputSplits)); Set<Set<String>> inputSplitsPowerSet = Sets.powerSet(inputSplits); Set<Entry<Locale, Currency>> results = new HashSet<>(); int totalCount = inputSplitsPowerSet.size() * Locale.getAvailableLocales().length * Currency.getAvailableCurrencies().size() * 2; int count = 0; Set<String> checked = new HashSet<>(); for (Set<String> inputSplit : inputSplitsPowerSet) { LOGGER.debug(String.format("input split powerset item is '%s'", inputSplit)); String inputSplitJoin0 = Joiner.on(" ").join(inputSplit); //String.join not available in Java < 8 String inputSplitJoin1 = Joiner.on("").join("", inputSplit); LOGGER.trace(String.format("checking input '%s'", inputSplitJoin0)); LOGGER.trace(String.format("checking input '%s'", inputSplitJoin1)); for (Locale locale : Locale.getAvailableLocales()) { for (Currency currency : Currency.getAvailableCurrencies()) { String currencySymbol = currency.getSymbol(locale); LOGGER.trace(String.format("currency symbol: %s", currencySymbol)); if (inputSplitJoin0.contains(currencySymbol)) { inputSplitJoin0 = inputSplitJoin0.replace(currencySymbol, " " + currencySymbol + " "); LOGGER.debug(String.format("replacement result: %s", inputSplitJoin0)); } if (inputSplitJoin1.contains(currencySymbol)) { inputSplitJoin1 = inputSplitJoin1.replace(currencySymbol, " " + currencySymbol + " "); LOGGER.debug(String.format("replacement result: %s", inputSplitJoin1)); } NumberFormat currencyFormat = NumberFormat.getCurrencyInstance(locale); currencyFormat.setCurrency(currency); try { currencyFormat.parse(inputSplitJoin0); results.add(new AbstractMap.SimpleImmutableEntry<>(locale, currency)); } catch (ParseException ex) { //skip } try { currencyFormat.parse(inputSplitJoin1); results.add(new AbstractMap.SimpleImmutableEntry<>(locale, currency)); } catch (ParseException ex) { //skip } count += 2; if (count % 100 == 0) { LOGGER.info(String.format("progress: %d/%d", count, totalCount)); } } } } return results.size(); } }