[android][temporary] Added Location logging

android/src/com/mapswithme/maps/location/LocationService.java

@@ -1,5 +1,10 @@
 package com.mapswithme.maps.location;
 
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.Date;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
@@ -14,12 +19,13 @@ import android.location.Location;
 import android.location.LocationListener;
 import android.location.LocationManager;
 import android.os.Bundle;
+import android.os.Environment;
 import android.util.Log;
 
 public class LocationService implements LocationListener, SensorEventListener, WifiLocation.Listener
 {
   private static final String TAG = "LocationService";
-  
+
   /// These constants should correspond to values defined in platform/location.hpp
   public static final int STOPPED = 0;
   public static final int STARTED = 1;
@@ -33,9 +39,9 @@ public class LocationService implements LocationListener, SensorEventListener, W
     public void onCompassUpdated(long time, double magneticNorth, double trueNorth, float accuracy);
     public void onLocationStatusChanged(int status);
   };
-  
+
   private HashSet<Listener> m_observers = new HashSet<Listener>(2);
-  
+
   // Used to filter locations from different providers
   private Location m_lastLocation = null;
 
@@ -58,29 +64,40 @@ public class LocationService implements LocationListener, SensorEventListener, W
     m_sensorManager = (SensorManager) c.getSystemService(Context.SENSOR_SERVICE);
     if (m_sensorManager != null)
       m_compassSensor = m_sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION);
+    File extDir = Environment.getExternalStorageDirectory();
+    m_log = new File(extDir, "location_log.txt");
+    try
+    {
+      if (m_log.exists())
+        m_log.createNewFile();
+    } catch (IOException e)
+    {
+      e.printStackTrace();
+    }
+
   }
-  
+
   private void notifyStatusChanged(int newStatus)
   {
     Iterator<Listener> it = m_observers.iterator();
     while (it.hasNext())
       it.next().onLocationStatusChanged(newStatus);
   }
-  
+
   private void notifyLocationUpdated(long time, double lat, double lon, float accuracy)
   {
     Iterator<Listener> it = m_observers.iterator();
     while (it.hasNext())
       it.next().onLocationUpdated(time, lat, lon, accuracy);
   }
-  
+
   private void notifyCompassUpdated(long time, double magneticNorth, double trueNorth, float accuracy)
   {
     Iterator<Listener> it = m_observers.iterator();
     while (it.hasNext())
       it.next().onCompassUpdated(time, magneticNorth, trueNorth, accuracy);
   }
-  
+
   public void startUpdate(Listener observer, Context c)
   {
     m_observers.add(observer);
@@ -161,7 +178,7 @@ public class LocationService implements LocationListener, SensorEventListener, W
     // A new location is thrown away if it's too old
     if (java.lang.System.currentTimeMillis() - newLocation.getTime() > TWO_MINUTES)
       return false;
-    
+
     // A new location is better than no location
     if (currentBestLocation == null)
       return true;
@@ -184,11 +201,11 @@ public class LocationService implements LocationListener, SensorEventListener, W
     // Check if the old and new location are from the same provider
     final boolean isFromSameProvider = isSameProvider(newLocation.getProvider(),
         currentBestLocation.getProvider());
-    
+
     // Situation when last known location is equal to the new one
     if (timeDelta == 0 && isFromSameProvider)
       return true; // Because new location is at least not too old (< 2mins from now)
-    
+
     // Check whether the new location fix is more or less accurate
     final int accuracyDelta = (int) (newLocation.getAccuracy()
         - currentBestLocation.getAccuracy());
@@ -218,10 +235,13 @@ public class LocationService implements LocationListener, SensorEventListener, W
   // *************** Notification Handlers ******************
 
   private final static float HUNDRED_METRES = 100.0f;
-  
+
+  private File m_log;
+
   //@Override
   public void onLocationChanged(Location l)
   {
+    boolean passed = false;
     if (isBetterLocation(l, m_lastLocation))
     {
       if (m_reportFirstUpdate)
@@ -239,6 +259,22 @@ public class LocationService implements LocationListener, SensorEventListener, W
       }
       notifyLocationUpdated(l.getTime(), l.getLatitude(), l.getLongitude(), l.getAccuracy());
       m_lastLocation = l;
+      passed = true;
+    }
+    try
+    {
+       BufferedWriter buf = new BufferedWriter(new FileWriter(m_log, true));
+       final long currTime = System.currentTimeMillis();
+       final double diffSeconds = (currTime - l.getTime())/1000.;
+       Date d = new Date(currTime);
+       buf.append((passed ? "+ " : "- ") + d.toLocaleString() + " " + diffSeconds + "sec " + l.getProvider() + " acc:"
+           + l.getAccuracy() + " lat:" + l.getLatitude() + " lon:" + l.getLongitude());
+       buf.newLine();
+       buf.close();
+    }
+    catch (IOException e)
+    {
+       e.printStackTrace();
     }
   }