/*
* Copyright 2010 Google Inc.
*
* 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.google.android.apps.mytracks.io.file.exporter;
import com.google.android.apps.mytracks.content.MyTracksLocation;
import com.google.android.apps.mytracks.content.Sensor;
import com.google.android.apps.mytracks.content.Sensor.SensorData;
import com.google.android.apps.mytracks.content.Sensor.SensorDataSet;
import com.google.android.apps.mytracks.content.Track;
import com.google.android.apps.mytracks.content.Waypoint;
import com.google.android.apps.mytracks.io.file.TrackFileFormat;
import com.google.android.apps.mytracks.util.StringUtils;
import com.google.android.maps.mytracks.R;
import android.content.Context;
import android.location.Location;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.text.NumberFormat;
import java.util.Locale;
/**
* Write track as CSV to a file. See RFC 4180 for info on CSV. Output three
* tables.<br>
* The first table contains the track info. Its columns are:<br>
* "Track name","Activity type","Track description" <br>
* <br>
* The second table contains the markers. Its columns are:<br>
* "Marker name","Marker type","Marker description","Latitude (deg)","Longitude
* (deg)","Altitude (m)","Bearing (deg)","Accuracy (m)","Speed (m/s)","Time"<br>
* <br>
* The thrid table contains the points. Its columns are:<br>
* "Segment","Point","Latitude (deg)","Longitude (deg)","Altitude (m)","Bearing
* (deg)","Accuracy (m)","Speed (m/s)","Time","Power (W)","Cadence (rpm)","Heart
* rate (bpm)","Battery level (%)"<br>
*
* @author Rodrigo Damazio
*/
public class CsvTrackWriter implements TrackWriter {
private static final NumberFormat SHORT_FORMAT = NumberFormat.getInstance(Locale.US);
static {
SHORT_FORMAT.setMaximumFractionDigits(4);
}
private final Context context;
private PrintWriter printWriter;
private int segmentIndex;
private int pointIndex;
public CsvTrackWriter(Context context) {
this.context = context;
}
@Override
public String getExtension() {
return TrackFileFormat.CSV.getExtension();
}
@Override
public void prepare(OutputStream outputStream) {
printWriter = new PrintWriter(outputStream);
segmentIndex = 0;
pointIndex = 0;
}
@Override
public void close() {
if (printWriter != null) {
printWriter.flush();
printWriter = null;
}
}
@Override
public void writeHeader(Track[] tracks) {
writeCommaSeparatedLine(context.getString(R.string.generic_name),
context.getString(R.string.track_edit_activity_type_hint),
context.getString(R.string.generic_description));
Track track = tracks[0];
writeCommaSeparatedLine(track.getName(), track.getCategory(), track.getDescription());
writeCommaSeparatedLine();
}
@Override
public void writeFooter() {
// Do nothing
}
@Override
public void writeBeginWaypoints(Track track) {
writeCommaSeparatedLine(context.getString(R.string.generic_name),
context.getString(R.string.marker_edit_marker_type_hint),
context.getString(R.string.generic_description),
context.getString(R.string.description_location_latitude),
context.getString(R.string.description_location_longitude),
context.getString(R.string.description_location_altitude),
context.getString(R.string.description_location_bearing),
context.getString(R.string.description_location_accuracy),
context.getString(R.string.description_location_speed),
context.getString(R.string.description_time));
}
@Override
public void writeEndWaypoints() {
writeCommaSeparatedLine();
}
@Override
public void writeWaypoint(Waypoint waypoint) {
Location location = waypoint.getLocation();
writeCommaSeparatedLine(waypoint.getName(), waypoint.getCategory(), waypoint.getDescription(),
Double.toString(location.getLatitude()), Double.toString(location.getLongitude()),
getAltitude(location), getBearing(location), getAccuracy(location), getSpeed(location),
StringUtils.formatDateTimeIso8601(location.getTime()));
}
@Override
public void writeBeginTracks() {
// Do nothing
}
@Override
public void writeEndTracks() {
// Do nothing
}
@Override
public void writeBeginTrack(Track track, Location startLocation) {
writeCommaSeparatedLine(context.getString(R.string.description_track_segment),
context.getString(R.string.description_track_point),
context.getString(R.string.description_location_latitude),
context.getString(R.string.description_location_longitude),
context.getString(R.string.description_location_altitude),
context.getString(R.string.description_location_bearing),
context.getString(R.string.description_location_accuracy),
context.getString(R.string.description_location_speed),
context.getString(R.string.description_time),
context.getString(R.string.description_sensor_power),
context.getString(R.string.description_sensor_cadence),
context.getString(R.string.description_sensor_heart_rate));
}
@Override
public void writeEndTrack(Track track, Location endLocation) {
// Do nothing
}
@Override
public void writeOpenSegment() {
segmentIndex++;
pointIndex = 0;
}
@Override
public void writeCloseSegment() {
// Do nothing
}
@Override
public void writeLocation(Location location) {
String power = null;
String cadence = null;
String heartRate = null;
if (location instanceof MyTracksLocation) {
SensorDataSet sensorDataSet = ((MyTracksLocation) location).getSensorDataSet();
if (sensorDataSet != null) {
if (sensorDataSet.hasPower()) {
SensorData sensorData = sensorDataSet.getPower();
if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
power = Double.toString(sensorData.getValue());
}
}
if (sensorDataSet.hasCadence()) {
SensorData sensorData = sensorDataSet.getCadence();
if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
cadence = Double.toString(sensorData.getValue());
}
}
if (sensorDataSet.hasHeartRate()) {
SensorData sensorData = sensorDataSet.getHeartRate();
if (sensorData.hasValue() && sensorData.getState() == Sensor.SensorState.SENDING) {
heartRate = Double.toString(sensorData.getValue());
}
}
}
}
pointIndex++;
writeCommaSeparatedLine(Integer.toString(segmentIndex), Integer.toString(pointIndex),
Double.toString(location.getLatitude()), Double.toString(location.getLongitude()),
getAltitude(location), getBearing(location), getAccuracy(location), getSpeed(location),
StringUtils.formatDateTimeIso8601(location.getTime()), power, cadence, heartRate);
}
private String getAltitude(Location location) {
return location.hasAltitude() ? Double.toString(location.getAltitude()) : null;
}
private String getBearing(Location location) {
return location.hasBearing() ? Double.toString(location.getBearing()) : null;
}
private String getAccuracy(Location location) {
return location.hasAccuracy() ? SHORT_FORMAT.format(location.getAccuracy()) : null;
}
private String getSpeed(Location location) {
return location.hasSpeed() ? SHORT_FORMAT.format(location.getSpeed()) : null;
}
/**
* Writes a single line of a CSV file.
*
* @param values the values to be written as CSV
*/
private void writeCommaSeparatedLine(String... values) {
StringBuilder builder = new StringBuilder();
boolean isFirst = true;
for (String value : values) {
if (!isFirst) {
builder.append(',');
}
isFirst = false;
builder.append('"');
if (value != null) {
builder.append(value.replaceAll("\"", "\"\""));
}
builder.append('"');
}
printWriter.println(builder.toString());
}
}