is.illuminati.block.spyros.garmin.model.NonStartTrackPoint.java Source code

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Here is the source code for is.illuminati.block.spyros.garmin.model.NonStartTrackPoint.java

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/*
 * Copyright 2009 Ilja Booij
 * 
 * This file is part of GarminTrainer.
 * 
 * GarminTrainer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * GarminTrainer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with GarminTrainer.  If not, see <http://www.gnu.org/licenses/>.
 */
package is.illuminati.block.spyros.garmin.model;

import java.io.Serializable;

import org.joda.time.DateTime;
import org.joda.time.Duration;

import static com.google.common.base.Preconditions.checkNotNull;

public class NonStartTrackPoint extends TrackPoint implements Serializable {

    private static final long serialVersionUID = 1L;
    private final TrackPoint previousTrackPoint;

    public NonStartTrackPoint(final TrackPoint previousTrackPoint, DateTime time, int heartRate, Length altitude,
            Length distance, double latitude, double longitude) {
        super(time, heartRate, altitude, distance, latitude, longitude);
        this.previousTrackPoint = checkNotNull(previousTrackPoint);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Speed getSpeed() {
        Length distanceTravelled = getDistance().substract(previousTrackPoint.getDistance());
        Duration timeTravelled = new Duration(previousTrackPoint.getTime(), getTime());

        return Speed.createSpeedInMetersPerSecond(distanceTravelled, timeTravelled);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Length getAltitudeDelta() {
        return getAltitude().substract(previousTrackPoint.getAltitude());
    }
}