| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package freemarker.ext.jsp.taglibmembers; |
| |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import com.google.common.collect.ImmutableMap; |
| |
| public final class TestFunctions { |
| |
| private TestFunctions() { |
| // Not meant to be instantiated |
| } |
| |
| public static String reverse(String s) { |
| StringBuilder sb = new StringBuilder(s.length()); |
| for (int i = s.length() - 1; i >= 0; i--) { |
| sb.append(s.charAt(i)); |
| } |
| return sb.toString(); |
| } |
| |
| public static int reverse(int i) { |
| return reverse(i, 10); |
| } |
| |
| public static int reverse(int i, int radix) { |
| final int signum = i >= 0 ? 1 : -1; |
| String s = reverse(Integer.toString(i * signum, radix)); |
| return Integer.parseInt(s, radix) * signum; |
| } |
| |
| public static long sum(int... xs) { |
| long sum = 0; |
| for (int x : xs) { |
| sum += x; |
| } |
| return sum; |
| } |
| |
| @SuppressWarnings("boxing") |
| public static String sum(Map<String, Integer> m) { |
| long sum = 0; |
| StringBuilder keys = new StringBuilder(); |
| for (Entry<String, Integer> e : m.entrySet()) { |
| keys.append(e.getKey()); |
| sum += e.getValue(); |
| } |
| return keys.append('=').append(sum).toString(); |
| } |
| |
| public static int[] testArray() { |
| return new int[] { 1, 2, 3 }; |
| } |
| |
| @SuppressWarnings("boxing") |
| public static Map<String, Integer> testMap() { |
| return ImmutableMap.of("a", 1, "b", 2, "c", 3); |
| } |
| |
| } |