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/**
 * Orignal work: Copyright 2015 www.seleniumtests.com
 * Modified work: Copyright 2016 www.infotel.com
 * 				Copyright 2017-2019 B.Hecquet
 *
 * 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.seleniumtests.util.osutility;

public class OSUtilityFactory {
	
	private static OSUtility instance = null;
	
	private OSUtilityFactory() {
		// nothing to do
	}

	public static OSUtility getInstance() {
		if (instance == null) {
			if (OSUtility.isWindows()){
				instance = new OSUtilityWindows();
			} else if (OSUtility.isMac()) {
				instance = new OSUtilityMac();
			} else {
				instance = new OSUtilityUnix();
			}
		}
		return instance;
	}

	/**
	 * For tests
	 */
	public static void resetInstance() {
		instance = null;
	}
}