/src/main/java/com/googlecode/charts4j/UrlUtil.java
http://charts4j.googlecode.com/ · Java · 77 lines · 29 code · 6 blank · 42 comment · 5 complexity · 799a35e0e0a572b18d67ba7c7bff2aa4 MD5 · raw file
- /**
- *
- * The MIT License
- *
- * Copyright (c) 2011 the original author or authors.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
- package com.googlecode.charts4j;
- import java.util.Arrays;
- import java.util.Collections;
- import java.util.List;
- import com.googlecode.charts4j.collect.ImmutableList;
- import com.googlecode.charts4j.collect.Lists;
- /**
- * Small URL utility class.
- *
- * @author Julien Chastang (julien.c.chastang at gmail dot com)
- *
- */
- public final class UrlUtil {
- /**
- * Cannot be instantiated.
- */
- private UrlUtil() {
- throw new AssertionError();
- }
- /**
- * A method that reformats the URL so that the parameters appear in
- * alphabetical order. This is useful for comparing URL strings in unit
- * tests, for instance.
- *
- * @param s
- * String to be normalized
- * @return Normalized string
- */
- public static String normalize(final String s) {
- if (s == null) {
- return "";
- }
- final ImmutableList<String> stringList = Lists.of(s.split("\\?"));
- if (stringList.size() != 2) {
- return s;
- }
- final String args = stringList.get(1);
- final List<String> params = Arrays.asList(args.split("&"));
- Collections.sort(params);
- final StringBuilder sb = new StringBuilder(stringList.get(0) + "?");
- int cnt = 0;
- for (String p : params) {
- sb.append(cnt++ > 0 ? "&" : "").append(p);
- }
- return sb.toString();
- }
- }