/*******************************************************************************
 * Copyright (c) 2000, 2006 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.ui.search;

import com.ibm.icu.text.Collator;
import java.util.Comparator;
import org.eclipse.ui.IWorkingSet;

class WorkingSetsComparator implements Comparator {

	private Collator fCollator= Collator.getInstance();
	
	/*
	 * @see Comparator#compare(Object, Object)
	 */
	public int compare(Object o1, Object o2) {
		String name1= null;
		String name2= null;
		
		if (o1 instanceof IWorkingSet[]) {
			IWorkingSet[] workingSets= (IWorkingSet[])o1;
			if (workingSets.length > 0)
				name1= workingSets[0].getLabel();
		}

		if (o2 instanceof IWorkingSet[]) {
			IWorkingSet[] workingSets= (IWorkingSet[])o1;
			if (workingSets.length > 0)
				name2= workingSets[0].getLabel();
		}

		return fCollator.compare(name1, name2);
	}
}