| /******************************************************************************* |
| * Copyright (c) 2000, 2015 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.launching; |
| |
| |
| import java.util.Comparator; |
| import java.util.List; |
| |
| /** |
| * Compares lists of runtime classpath entry mementos. |
| */ |
| public class RuntimeClasspathEntryListComparator implements Comparator<Object> { |
| |
| /** |
| * @see Comparator#compare(Object, Object) |
| */ |
| @Override |
| public int compare(Object o1, Object o2) { |
| List<?> list1 = (List<?>)o1; |
| List<?> list2 = (List<?>)o2; |
| |
| if (list1.size() == list2.size()) { |
| for (int i = 0; i < list1.size(); i++) { |
| String memento1 = (String)list1.get(i); |
| String memento2 = (String)list2.get(i); |
| if (!equalsIgnoreWhitespace(memento1, memento2)) { |
| return -1; |
| } |
| } |
| return 0; |
| } |
| return -1; |
| } |
| |
| protected boolean equalsIgnoreWhitespace(String one, String two) { |
| int i1 = 0; |
| int i2 = 0; |
| int l1 = one.length(); |
| int l2 = two.length(); |
| char ch1 = ' '; |
| char ch2 = ' '; |
| while (i1 < l1 && i2 < l2) { |
| while (i1 < l1 && Character.isWhitespace(ch1 = one.charAt(i1))) { |
| i1++; |
| } |
| while (i2 < l2 && Character.isWhitespace(ch2 = two.charAt(i2))) { |
| i2++; |
| } |
| if (i1 == l1 && i2 == l2) { |
| return true; |
| } |
| if (ch1 != ch2) { |
| return false; |
| } |
| i1++; |
| i2++; |
| } |
| return true; |
| } |
| |
| } |