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

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Here is the source code for is.illuminati.block.spyros.garmin.model.Lap.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 java.util.List;

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

import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.common.collect.Iterators;
import com.google.common.collect.PeekingIterator;

/**
 * Represents a Lap. A Lap is defined by it's start and end time.
 * @author ilja
 *
 */
public class Lap implements Serializable {

    private static final long serialVersionUID = 1L;
    private final DateTime startTime;
    private final ImmutableList<Track> tracks;
    private final Length distance;

    public Lap(final DateTime startTime, final List<Track> tracks, final Length distance) {
        this.startTime = startTime;
        this.tracks = ImmutableList.copyOf(tracks);
        this.distance = distance;
    }

    /**
     * Get Start time of the lap.
     * @return start time
     */
    public DateTime getStartTime() {
        return startTime;
    }

    /**
     * Get End time of the lap
     */
    public DateTime getEndTime() {
        Track lastTrack = Iterables.getLast(tracks);
        return lastTrack.getEndTime();
    }

    /**
     * Get all track points in the lap
     * @return list of all track points.
     */
    public ImmutableList<TrackPoint> getTrackPoints() {
        ImmutableList.Builder<TrackPoint> builder = ImmutableList.builder();
        for (Track track : tracks) {
            builder.addAll(track.getTrackPoints());
        }
        return builder.build();
    }

    /**
     * Get a list of all pauses in the lap.
     * @return list of all pauses.
     */
    public ImmutableList<Pause> getPauses() {
        ImmutableList.Builder<Pause> pausesBuilder = ImmutableList.builder();
        PeekingIterator<Track> it = Iterators.peekingIterator(tracks.iterator());
        while (it.hasNext()) {
            Track former = it.next();
            Track latter;
            if (it.hasNext()) {
                latter = it.peek();
            } else {
                break;
            }
            Duration gap = new Duration(former.getEndTime(), latter.getStartTime());
            if (gap.isLongerThan(Duration.standardSeconds(10))) {
                pausesBuilder.add(new Pause(former.getEndTime(), latter.getStartTime()));
            }
        }
        return pausesBuilder.build();
    }

    /**
     * Get gross duration of Lap. That is, the total time from start of the lap 
     * to the end.
     * @return gross duration of the lap
     */
    public Duration getGrossDuration() {
        return new Duration(getStartTime(), getEndTime());
    }

    /**
     * Get net duration of Lap. That is, the time from start to end, minus the
     * pauses.
     * @return net duration of lap.
     */
    public Duration getNetDuration() {
        Duration duration = new Duration(startTime, tracks.get(0).getStartTime());
        for (Track track : tracks) {
            duration = duration.plus(track.getDuration());
        }
        return duration;
    }

    public Length getDistance() {
        return this.distance;
    }

    public Speed getSpeed() {
        return Speed.createSpeedInMetersPerSecond(getDistance(), getGrossDuration());
    }

    public int getMaximumHeartRate() {
        int heartRate = 0;
        for (TrackPoint trackPoint : getTrackPoints()) {
            if (trackPoint.getHeartRate() > heartRate) {
                heartRate = trackPoint.getHeartRate();
            }
        }

        return heartRate;
    }

    public int getAverageHeartRate() {
        int count = 0;
        int total = 0;

        for (TrackPoint trackPoint : getTrackPoints()) {
            if (trackPoint.getHeartRate() > 0) {
                count++;
                total += trackPoint.getHeartRate();
            }
        }

        return count > 0 ? Math.round(total / count) : 0;
    }
}