In TrackRecordingService, fix the code on detecting if a location

is already inserted in the database.
In TripStatisticsUpdater, improve total distance accuracy by
taking into account the last point in a segment.

MyTracks/src/com/google/android/apps/mytracks/services/TrackRecordingService.java

@@ -82,8 +82,8 @@ import java.util.concurrent.Executors;
 public class TrackRecordingService extends Service {
 
   private static final String TAG = TrackRecordingService.class.getSimpleName();
-  public static final int PAUSE_LATITUDE = 100;
-  private static final int RESUME_LATITUDE = 200;
+  public static final double PAUSE_LATITUDE = 100.0;
+  private static final double RESUME_LATITUDE = 200.0;
 
   // One second in milliseconds
   private static final long ONE_SECOND = 1000;
@@ -452,9 +452,8 @@ public class TrackRecordingService extends Service {
     int type = isStatistics ? Waypoint.TYPE_STATISTICS : Waypoint.TYPE_WAYPOINT;
     long duration;
     double length;
-    Location lastTrackPoint = myTracksProviderUtils.getLastTrackPoint(recordingTrackId);
-    if (currentSegmentHasLocation && LocationUtils.isValidLocation(lastTrackPoint)
-        && trackTripStatisticsUpdater != null) {
+    Location location = getLastValidTrackPointInCurrentSegment(recordingTrackId);
+    if (location != null && trackTripStatisticsUpdater != null) {
       TripStatistics stats = trackTripStatisticsUpdater.getTripStatistics();
       length = stats.getTotalDistance();
       duration = stats.getTotalTime();
@@ -463,14 +462,14 @@ public class TrackRecordingService extends Service {
         return -1L;
       }
       // For track statistics, make it an impossible location
-      lastTrackPoint = new Location("");
-      lastTrackPoint.setLatitude(100);
-      lastTrackPoint.setLongitude(180);
+      location = new Location("");
+      location.setLatitude(100);
+      location.setLongitude(180);
       length = 0;
       duration = 0;
     }
     Waypoint waypoint = new Waypoint(name, description, category, icon, recordingTrackId, type,
-        length, duration, -1L, -1L, lastTrackPoint, tripStatistics);
+        length, duration, -1L, -1L, location, tripStatistics);
     Uri uri = myTracksProviderUtils.insertWaypoint(waypoint);
     return Long.parseLong(uri.getLastPathSegment());
   }
@@ -701,7 +700,7 @@ public class TrackRecordingService extends Service {
     // Update database
     Track track = myTracksProviderUtils.getTrack(trackId);
     if (track != null) {
-      insertLocation(track, lastLocation, myTracksProviderUtils.getLastTrackPoint(trackId));
+      insertLocation(track, lastLocation, getLastValidTrackPointInCurrentSegment(trackId));
       updateRecordingTrack(track, myTracksProviderUtils.getLastTrackPointId(trackId), false);
     }
 
@@ -709,6 +708,18 @@ public class TrackRecordingService extends Service {
     stopSelf();
   }
 
+  /**
+   * Gets the last valid track point in the current segment. Returns null if not available.
+   * 
+   * @param trackId the track id
+   */
+  private Location getLastValidTrackPointInCurrentSegment(long trackId) {
+    if (!currentSegmentHasLocation) {
+      return null;
+    }
+    return myTracksProviderUtils.getLastValidTrackPoint(trackId);
+  }
+
   /**
    * Pauses the current track.
    */
@@ -725,8 +736,7 @@ public class TrackRecordingService extends Service {
     // Update database
     Track track = myTracksProviderUtils.getTrack(recordingTrackId);
     if (track != null) {
-      insertLocation(
-          track, lastLocation, myTracksProviderUtils.getLastTrackPoint(track.getId()));
+      insertLocation(track, lastLocation, getLastValidTrackPointInCurrentSegment(track.getId()));
 
       Location pause = new Location(LocationManager.GPS_PROVIDER);
       pause.setLongitude(0);
@@ -809,9 +819,8 @@ public class TrackRecordingService extends Service {
         return;
       }
 
-      Location lastTrackPoint = myTracksProviderUtils.getLastTrackPoint(track.getId());
-      long idleTime = currentSegmentHasLocation && LocationUtils.isValidLocation(lastTrackPoint) ?
-          location.getTime() - lastTrackPoint.getTime()
+      Location lastValidTrackPoint = getLastValidTrackPointInCurrentSegment(track.getId());
+      long idleTime = lastValidTrackPoint != null ? location.getTime() - lastValidTrackPoint.getTime()
           : 0L;
       locationListenerPolicy.updateIdleTime(idleTime);
       if (currentRecordingInterval != locationListenerPolicy.getDesiredPollingInterval()) {
@@ -825,41 +834,41 @@ public class TrackRecordingService extends Service {
 
       // Always insert the first segment location
       if (!currentSegmentHasLocation) {
-        insertLocation(track, location, lastTrackPoint);
+        insertLocation(track, location, null);
         currentSegmentHasLocation = true;
         lastLocation = location;
         return;
       }
 
-      if (!LocationUtils.isValidLocation(lastTrackPoint)) {
+      if (!LocationUtils.isValidLocation(lastValidTrackPoint)) {
         /*
          * Should not happen. The current segment should have a location. Just
          * insert the current location.
          */
-        insertLocation(track, location, lastTrackPoint);
+        insertLocation(track, location, null);
         lastLocation = location;
         return;
       }
 
-      double distanceToLastTrackLocation = location.distanceTo(lastTrackPoint);
+      double distanceToLastTrackLocation = location.distanceTo(lastValidTrackPoint);
       if (distanceToLastTrackLocation < minRecordingDistance && sensorDataSet == null) {
         Log.d(TAG, "Not recording location due to min recording distance.");
       } else if (distanceToLastTrackLocation > maxRecordingDistance) {
-        insertLocation(track, lastLocation, lastTrackPoint);
+        insertLocation(track, lastLocation, lastValidTrackPoint);
         Location pause = new Location(LocationManager.GPS_PROVIDER);
         pause.setLongitude(0);
         pause.setLatitude(PAUSE_LATITUDE);
         pause.setTime(lastLocation.getTime());
         insertLocation(track, pause, null);
 
-        insertLocation(track, location, lastTrackPoint);
+        insertLocation(track, location, null);
       } else {
         /*
          * (distanceToLastTrackLocation >= minRecordingDistance ||
          * hasSensorData) && distanceToLastTrackLocation <= maxRecordingDistance
          */
-        insertLocation(track, lastLocation, lastTrackPoint);
-        insertLocation(track, location, lastTrackPoint);
+        insertLocation(track, lastLocation, lastValidTrackPoint);
+        insertLocation(track, location, null);
       }
       lastLocation = location;
     } catch (Error e) {
@@ -871,13 +880,21 @@ public class TrackRecordingService extends Service {
     }
   }
 
-  private void insertLocation(Track track, Location location, Location lastRecordedLocation) {
+  /**
+   * Inserts a location.
+   * 
+   * @param track the track
+   * @param location the location
+   * @param lastValidTrackPoint the last valid track point, can be null
+   */
+  private void insertLocation(Track track, Location location, Location lastValidTrackPoint) {
     if (location == null) {
       Log.w(TAG, "Ignore insertLocation. loation is null.");
       return;
     }
-    if (location.equals(lastRecordedLocation)) {
-      Log.w(TAG, "Ignore insertLocation. loation same as last recorded location.");
+    // Do not insert if inserted already
+    if (lastValidTrackPoint != null && lastValidTrackPoint.getTime()  == location.getTime()) {
+      Log.w(TAG, "Ignore insertLocation. location time same as last valid track point time.");
       return;
     }
 

MyTracks/src/com/google/android/apps/mytracks/stats/TripStatisticsUpdater.java

@@ -96,6 +96,10 @@ public class TripStatisticsUpdater {
     if (!LocationUtils.isValidLocation(location)) {
       updateTime(location.getTime());
       if (location.getLatitude() == TrackRecordingService.PAUSE_LATITUDE) {
+        if (lastLocation != null && lastMovingLocation != null
+            && lastLocation != lastMovingLocation) {
+          currentSegment.addTotalDistance(lastMovingLocation.distanceTo(lastLocation));
+        }
         tripStatistics.merge(currentSegment);
       }
       currentSegment = init(location.getTime());

MyTracksLib/src/com/google/android/apps/mytracks/content/MyTracksProviderUtils.java

@@ -211,13 +211,6 @@ public interface MyTracksProviderUtils {
    */
   public Location createTrackPoint(Cursor cursor);
 
-  /**
-   * Gets the last location for a track. Returns null if it doesn't exist.
-   * 
-   * @param trackId the track id
-   */
-  public Location getLastTrackPoint(long trackId);
-
   /**
    * Gets the last location id for a track. Returns -1L if it doesn't exist.
    * 

MyTracksLib/src/com/google/android/apps/mytracks/content/MyTracksProviderUtilsImpl.java

@@ -697,17 +697,6 @@ public class MyTracksProviderUtilsImpl implements MyTracksProviderUtils {
     return location;
   }
 
-  @Override
-  public Location getLastTrackPoint(long trackId) {
-    if (trackId < 0) {
-      return null;
-    }
-    String selection = TrackPointsColumns._ID + "=(select max(" + TrackPointsColumns._ID + ") from "
-        + TrackPointsColumns.TABLE_NAME + " WHERE " + TrackPointsColumns.TRACKID + "=?)";
-    String[] selectionArgs = new String[] { Long.toString(trackId) };
-    return findTrackPointBy(selection, selectionArgs);
-  }
-
   @Override
   public long getLastTrackPointId(long trackId) {
     if (trackId < 0) {

MyTracksTest/src/com/google/android/apps/mytracks/content/MyTracksProviderUtilsImplTest.java

@@ -746,17 +746,6 @@ public class MyTracksProviderUtilsImplTest extends AndroidTestCase {
     assertEquals(11, providerUtils.getTrackPointCursor(trackId, 0, 1000, false).getCount());
   }
 
-  /**
-   * Tests the method {@link MyTracksProviderUtilsImpl#getLastTrackPoint(long)}.
-   */
-  public void testGetLastTrackPoint() {
-    // Insert track, point at first.
-    long trackId = System.currentTimeMillis();
-    Track track = getTrack(trackId, 10);
-    insertTrackWithLocations(track);
-    checkLocation(9, providerUtils.getLastTrackPoint(trackId));
-  }
-
   /**
    * Tests the method {@link MyTracksProviderUtilsImpl#getLastTrackPointId(long)}.
    */