| /******************************************************************************* |
| * Copyright (c) 2000, 2009 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.ui.internal; |
| |
| import java.util.Comparator; |
| |
| import org.eclipse.ui.IWorkingSet; |
| |
| import com.ibm.icu.text.Collator; |
| |
| /** |
| * Compares two working sets by name. |
| */ |
| public class WorkingSetComparator implements Comparator { |
| |
| private static ThreadLocal INSTANCES = new ThreadLocal() { |
| protected synchronized Object initialValue() { |
| return new WorkingSetComparator(); |
| } |
| }; |
| |
| public static WorkingSetComparator getInstance() { |
| return (WorkingSetComparator) INSTANCES.get(); |
| } |
| |
| private Collator fCollator = Collator.getInstance(); |
| |
| /** |
| * Implements Comparator. |
| * |
| * @see Comparator#compare(Object, Object) |
| */ |
| public int compare(Object o1, Object o2) { |
| String name1 = null; |
| String name2 = null; |
| |
| if (o1 instanceof IWorkingSet) { |
| name1 = ((IWorkingSet) o1).getLabel(); |
| } |
| |
| if (o2 instanceof IWorkingSet) { |
| name2 = ((IWorkingSet) o2).getLabel(); |
| } |
| |
| int result = fCollator.compare(name1, name2); |
| if (result == 0) { // okay, same name - now try the unique id |
| |
| if (o1 instanceof IWorkingSet) { |
| name1 = ((IWorkingSet) o1).getName(); |
| } |
| |
| if (o2 instanceof IWorkingSet) { |
| name2 = ((IWorkingSet) o2).getName(); |
| } |
| result = name1.compareTo(name2); |
| } |
| return result; |
| } |
| } |