/**
 * ============LICENSE_START=======================================================
 * org.onap.aai
 * ================================================================================
 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 */
package org.onap.aai.logging;

import org.onap.aai.logging.LoggingContext.LoggingField;

public final class StopWatch {

	private StopWatch() {}

	public static void start() {
		LoggingContext.stopWatchStart();
	}

	public static double stop() {
		return LoggingContext.stopWatchStop();
	}
	public static void conditionalStart() {
		if ( LoggingContext.isStopWatchStarted() ) {
			return;
		}
		start();
	}
	public static double stopIfStarted() {
		if ( LoggingContext.isStopWatchStarted() ) {
			return (stop());
		}
		return (0);
	}
	public static void clear() {
		LoggingContext.remove(LoggingField.STOP_WATCH_START.toString());
		LoggingContext.remove(LoggingField.ELAPSED_TIME.toString());
	}
}