| /* |
| * Copyright 2000-2013 JetBrains s.r.o. |
| * |
| * Licensed 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 com.intellij.util; |
| |
| import java.util.Comparator; |
| |
| public class StringLenComparator implements Comparator<String> { |
| private static final StringLenComparator ourInstance = new StringLenComparator(true); |
| private static final StringLenComparator ourDescendingInstance = new StringLenComparator(false); |
| |
| private final boolean myAscending; |
| |
| public static StringLenComparator getInstance() { |
| return ourInstance; |
| } |
| |
| public static StringLenComparator getDescendingInstance() { |
| return ourDescendingInstance; |
| } |
| |
| private StringLenComparator(final boolean value) { |
| myAscending = value; |
| } |
| |
| @Override |
| public int compare(final String o1, final String o2) { |
| final int revertor = myAscending ? 1 : -1; |
| return (o1.length() == o2.length()) ? 0 : (revertor * ((o1.length() < o2.length()) ? -1 : 1)); |
| } |
| } |