Timer.java

/*
 * Copyright 2016 the original author or authors.
 *
 * 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 org.gradle.performance.android;

import java.math.BigDecimal;

public class Timer {
    final long startTime = System.nanoTime();
    private long endTime;

    public Timer stop() {
        endTime = System.nanoTime();
        return this;
    }

    public String duration() {
        return BigDecimal.valueOf(endTime-startTime, 9) + "s";
    }
}