public static void setState(ActivityRecognitionResult result) {
DetectedActivity da = result.getMostProbableActivity();
int state = da.getType();
log.debug(
"DetectedActivity: "
+ DateTimes.timeFormat().format(result.getTime())
+ " - "
+ getStateText(state)
+ ", "
+ da.getConfidence()
+ ", "
+ DateTimes.timeFormat().format(result.getElapsedRealtimeMillis()));
if (Collections.isEmpty(states)) {
states.put(state, 0L);
lastState = state;
lastStart = System.currentTimeMillis();
return;
}
Long ltime = states.get(lastState);
if (ltime != null) {
ltime += (System.currentTimeMillis() - lastStart);
states.put(lastState, ltime);
}
lastState = state;
lastStart = System.currentTimeMillis();
if (!states.containsKey(state)) {
states.put(state, 0L);
}
}
private static int getBestState() {
if (Collections.isEmpty(states)) {
return DetectedActivity.UNKNOWN;
}
long max = 0;
for (Long time : states.values()) {
if (time > max) {
max = time;
}
}
int state = DetectedActivity.UNKNOWN;
for (Entry<Integer, Long> en : states.entrySet()) {
if (max == en.getValue()) {
state = en.getKey();
break;
}
}
states.clear();
states.put(lastState, 0L);
lastStart = System.currentTimeMillis();
return state;
}
public static TrackingData getFirstLocation() {
if (Collections.isNotEmpty(trackings)) {
return trackings.get(0);
}
return null;
}
public static boolean addLocation(Location location, Geocoder geocoder) {
TrackingData ltd = getLastLocation();
float distance = 0.0f;
float speed = 0.0f;
if (ltd != null) {
float[] results = new float[1];
Location.distanceBetween(
ltd.getLatitude(),
ltd.getLongitude(),
location.getLatitude(),
location.getLongitude(),
results);
distance = results[0];
if (distance < 100) {
log.debug("SKIP SAME " + location + ": " + distance);
return false;
}
long delta = DateTimes.subSeconds(new Date(location.getTime()), ltd.getDate());
// less than 30 minutes
if (delta < 30 * 60) {
speed = distance / delta;
// if (lastState == DetectedActivity.STILL) {
//
// }
// great than 120km/h
if (speed >= 33) {
log.debug("SKIP FAST " + location + ": " + distance);
return false;
}
}
}
String address = "";
try {
List<Address> addresses =
geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
if (Collections.isNotEmpty(addresses)) {
Address a = addresses.get(0);
address = toAddress(a);
}
// if (ltd != null && Strings.isNotEmpty(address)) {
// if (ltd.getAddress().equals(address)) {
// log.debug("Skip (" + location + "): " + address);
// return;
// }
// }
} catch (Exception e) {
// Catch network or other I/O problems.
log.error(
"Failed to get address of (" + location.getLatitude() + ", " + location.getLongitude(),
e);
}
TrackingData td = new TrackingData();
td.setDate(new Date(location.getTime()));
td.setState(getBestState());
td.setLatitude(location.getLatitude());
td.setLongitude(location.getLongitude());
td.setAddress(address);
if (ltd != null) {
float[] results = new float[1];
Location.distanceBetween(
ltd.getLatitude(), ltd.getLongitude(), td.getLatitude(), td.getLongitude(), results);
td.setDistance(results[0]);
td.setSpeed(td.getDistance() / DateTimes.subSeconds(td.getDate(), ltd.getDate()));
}
trackings.add(td);
saveTrackingData(td);
return true;
}
public static TrackingData getLastLocation() {
if (Collections.isNotEmpty(trackings)) {
return trackings.get(trackings.size() - 1);
}
return null;
}