add voice engine

git-svn-id: https://osmand.googlecode.com/svn/trunk@320 e29c36b1-1cfa-d876-8d93-3434fc2bb7b8

DataExtractionOSM/src/com/osmand/ToDoConstants.java

@@ -20,9 +20,11 @@ public class ToDoConstants {
 	//   68. Implement service to app work with screen offline 
 	//		 (introduce special settings how often update location to monitoring & audio guidance)
 	//   Improvement : Show stops in the transport route on the map
+	//   Improvement : redesign poi selecting (show on map )
+	//   69. Add phone information to POI
 	
 	// Not clear if it is really needed 
-    //   43. Enable poi filter by name
+    //   43. Enable poi filter by name (find lake by name or shop) - case sensitive search DB!
 	//   45. Get clear <Use internet> settings. Move that setting on top settings screen. 
 	//       That setting should rule all activities that use internet. It should ask whenever internet is used 
 	//		(would you like to use internet for that operation - if using internet is not checked). 
@@ -31,7 +33,7 @@ public class ToDoConstants {
 	// Unscheduled (complex)
 	//   66. Transport routing (show next stop, total distance, show stop get out) (?).
 	//   64. Traffic information (?)
-	//   65. Intermediate points - for better control routing, to avoid traffic jam ...(?)
+	//   65. Intermediate points - for better control routing, to avoid traffic jams ...(?)
 	//   40. Support simple vector road rendering (require new index file) (?)
 	//   63. Support simple offline routing(require new index file) (?)
 

DataExtractionOSM/src/com/osmand/data/index/IndexBatchCreator.java

@@ -26,7 +26,7 @@ import com.osmand.impl.ConsoleProgressImplementation;
 public class IndexBatchCreator {
 	// config params
 	private static final boolean indexPOI = true;
-	private static final boolean indexAddress = true;
+	private static final boolean indexAddress = false;
 	private static final boolean indexTransport = true;
 	private static final boolean writeWayNodes = true;
 	
@@ -52,30 +52,27 @@ public class IndexBatchCreator {
 //		 "czech_republic", "netherlands", // 168, 375,
 //		 "great_britain",  "italy", // 281, 246, 
 		// ADD TO TOTAL : 2449 MB
-		// TODO transport, poi : "czech_republic", "netherlands", "great_britain",  "italy" 
+		// TODO "great_britain",  "italy" (address out of memory, poi, transport) + netherlands
-		//      address : "great_britain",  "italy" - out of memory
 
 	};
 
-	// TODO all
 	protected static final String[] franceProvinces = new String[] {
-		"alsace","aquitaine", "auvergne", "basse-normandie", "bourgogne", "bretagne", "centre",
+//		"alsace","aquitaine", "auvergne", "basse-normandie", "bourgogne", "bretagne", "centre",
-		"champagne-ardenne", "corse", "franche-comte", "haute-normandie", "ile-de-france",
+//		"champagne-ardenne", "corse", "franche-comte", "haute-normandie", "ile-de-france",
-		"languedoc-roussillon", "limousin", "lorraine", "midi-pyrenees", "nord-pas-de-calais",
+//		"languedoc-roussillon", "limousin", "lorraine", "midi-pyrenees", "nord-pas-de-calais",
-		"pays-de-la-loire", "picardie","poitou-charentes", "provence-alpes-cote-d-azur", "rhone-alpes"
+//		"pays-de-la-loire", "picardie","poitou-charentes", "provence-alpes-cote-d-azur", "rhone-alpes"
 	};
 	
-	// TODO all
 	protected static final String[] germanyLands = new String[] {
-		"baden-wuerttemberg","bayern", "berlin", "brandenburg", "bremen", "hamburg", "hessen",
+//		"baden-wuerttemberg","bayern", "berlin", "brandenburg", "bremen", "hamburg", "hessen",
-		"mecklenburg-vorpommern", "niedersachsen", "nordrhein-westfalen", "rheinland-pfalz", "saarland",
+//		"mecklenburg-vorpommern", "niedersachsen", "nordrhein-westfalen", "rheinland-pfalz", "saarland",
-		"sachsen-anhalt", "sachsen", "schleswig-holstein", "thueringen",
+//		"sachsen-anhalt", "sachsen", "schleswig-holstein", "thueringen",
 	};
 
 	
 	protected static final String SITE_TO_DOWNLOAD2 = "http://downloads.cloudmade.com/"; //$NON-NLS-1$
 	// us states
-	// TODO address
+	// Address (out of memory) : California ? , Florida ?, Georgia ?
 	protected static final String[] usStates = new String[] {
 //		"Alabama", "Alaska", "Arizona", "Arkansas", "California", "Colorado", "Connecticut", 
 //		"Delaware",	"District_of_Columbia", "Florida", "Georgia", "Guantanamo_Bay",	"Hawaii",
@@ -255,7 +252,7 @@ public class IndexBatchCreator {
 					uploadIndex(new File(indexDirFiles, fName), alreadyUploadedFiles);
 				}
 			} catch (Exception e) {
-				log.error("Exception generating indexes for " + f.getName()); //$NON-NLS-1$ 
+				log.error("Exception generating indexes for " + f.getName(), e); //$NON-NLS-1$ 
 			}
 		} catch (OutOfMemoryError e) {
 			System.gc();
@@ -323,7 +320,7 @@ public class IndexBatchCreator {
 				is.close();
 				zout.close();
 			} catch (IOException e) {
-				log.error("Exception while zipping file");
+				log.error("Exception while zipping file", e);
 			}
 			if(f.delete()){
 				log.info("Source odb file was deleted");

OsmAnd/.classpath

@@ -5,5 +5,6 @@
 	<classpathentry kind="src" path="gen"/>
 	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
 	<classpathentry kind="lib" path="lib/bzip2-20090327.jar"/>
+	<classpathentry kind="lib" path="lib/tuprolog.jar"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

OsmAnd/res/values-ru-rRU/strings.xml

@@ -1,6 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-	<string name="stop_routing">Stop routing</string>
+	<string name="voice_not_use">Не использовать</string>
+	<string name="voice_provider_descr">Выберите голос для маршрутизации</string>
+	<string name="voice_provider">Голосовые данные</string>
+	<string name="voice_data_initializing">Инициализируются голосовые данные...</string>
+	<string name="voice_data_not_supported">Голосовые данные не поддерживаются текущей версией приложения</string>
+	<string name="voice_data_corrupted">Выбранные голосовые данные не правильного формата</string>
+	<string name="voice_data_unavailable">Выбранные голосовые данные не доступны</string>
+	<string name="stop_routing">Отменить маршрут</string>
 	<string name="sd_unmounted">Карточка SD недоступна. \nВы не сможете работать с картой.</string>
 	<string name="sd_mounted_ro">Карточка SD доступна только для чтения. \nВы не сможете загружать карты из интернета.</string>
 	<string name="unzipping_file">Файл распаковывается</string>

OsmAnd/res/values/strings.xml

@@ -1,6 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-	<string name="stop_routing">Отменить маршрут</string>
+	<string name="voice_not_use">Not use</string>
+	<string name="voice_provider_descr">Choose voice data for routing</string>
+	<string name="voice_provider">Voice data</string>
+	<string name="voice_data_initializing">Initializing voice data...</string>
+	<string name="voice_data_not_supported">Voice data has different version that application supports</string>
+	<string name="voice_data_corrupted">Specified voice data is corrupted</string>
+	<string name="voice_data_unavailable">Current voice data is not available</string>
+	<string name="stop_routing">Stop routing</string>
 	<string name="sd_unmounted">SD card is not accessible. \nYou can\'t see map and find anything.</string>
 	<string name="sd_mounted_ro">SD card is read-only accessible. \nYou can see only preloaded map and can\'t download from internet.</string>
 	<string name="unzipping_file">File is unzipping</string>

OsmAnd/res/xml/settings_pref.xml

@@ -22,6 +22,7 @@
 <Preference android:title="@string/reload_indexes" android:key="reload_indexes" android:summary="@string/reload_indexes_descr"></Preference>
 <Preference android:title="@string/download_indexes" android:key="download_indexes" android:summary="@string/download_indexes_descr"></Preference>
 <ListPreference android:title="@string/router_service" android:key="router_service" android:summary="@string/router_service_descr"></ListPreference>
+<ListPreference android:title="@string/voice_provider" android:key="voice_provider" android:summary="@string/voice_provider_descr"></ListPreference>
 </PreferenceScreen>
 
 <PreferenceScreen android:title="@string/monitor_preferences" android:summary="@string/monitor_preferences_descr">

OsmAnd/src/com/osmand/OsmandSettings.java

@@ -495,4 +495,28 @@ public class OsmandSettings {
 		}
 		return new PoiFilter(null);
 	}
+	
+
+	// this value string is synchronized with settings_pref.xml preference name
+	public static final String VOICE_PROVIDER = "voice_provider"; //$NON-NLS-1$
+	
+	public static String getVoiceProvider(Context ctx){
+		SharedPreferences prefs = ctx.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_WORLD_READABLE);
+		return prefs.getString(VOICE_PROVIDER, null);
+	}
+	
+	public static final String VOICE_MUTE = "voice_mute"; //$NON-NLS-1$
+	public static final boolean VOICE_MUTE_DEF = false;
+	
+	public static boolean isVoiceMute(Context ctx){
+		SharedPreferences prefs = ctx.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_WORLD_READABLE);
+		return prefs.getBoolean(VOICE_MUTE, VOICE_MUTE_DEF);
+	}
+	
+	public static boolean setVoiceMute(Context ctx, boolean mute){
+		SharedPreferences prefs = ctx.getSharedPreferences(SHARED_PREFERENCES_NAME, Context.MODE_WORLD_READABLE);
+		return prefs.edit().putBoolean(VOICE_MUTE, mute).commit();
+	}
+	
+	
 }

OsmAnd/src/com/osmand/activities/MainMenuActivity.java

@@ -32,6 +32,7 @@ import com.osmand.ProgressDialogImplementation;
 import com.osmand.R;
 import com.osmand.ResourceManager;
 import com.osmand.activities.search.SearchActivity;
+import com.osmand.voice.CommandPlayer;
 
 public class MainMenuActivity extends Activity {
 
@@ -57,7 +58,14 @@ public class MainMenuActivity extends Activity {
 				@Override
 				public void run() {
 					try {
+						// initializing voice prolog subsystem
+						
 						List<String> warnings = ResourceManager.getResourceManager().reloadIndexes(impl);
+						impl.startTask(getString(R.string.voice_data_initializing), -1);
+						String w = CommandPlayer.init(MainMenuActivity.this);
+						if(w != null){
+							warnings.add(w);
+						}
 						SavingTrackHelper helper = new SavingTrackHelper(MainMenuActivity.this);
 						if (helper.hasDataToSave()) {
 							impl.startTask(getString(R.string.saving_gpx_tracks), -1);
@@ -100,9 +108,6 @@ public class MainMenuActivity extends Activity {
 
 		requestWindowFeature(Window.FEATURE_NO_TITLE);
 		setContentView(R.layout.menu);
-		
-		
-
 
 		showMap = (Button) findViewById(R.id.MapButton);
 		showMap.setOnClickListener(new OnClickListener() {
@@ -110,7 +115,6 @@ public class MainMenuActivity extends Activity {
 			public void onClick(View v) {
 				final Intent mapIndent = new Intent(MainMenuActivity.this, MapActivity.class);
 				startActivityForResult(mapIndent, 0);
-
 			}
 		});
 		settingsButton = (Button) findViewById(R.id.SettingsButton);

OsmAnd/src/com/osmand/activities/SettingsActivity.java

@@ -1,6 +1,9 @@
 package com.osmand.activities;
 
+import java.io.File;
+import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Set;
 
 import android.app.ProgressDialog;
 import android.content.Context;
@@ -9,6 +12,7 @@ import android.content.SharedPreferences;
 import android.content.SharedPreferences.Editor;
 import android.content.pm.ActivityInfo;
 import android.content.res.Resources;
+import android.os.Environment;
 import android.os.Bundle;
 import android.preference.CheckBoxPreference;
 import android.preference.EditTextPreference;
@@ -29,6 +33,7 @@ import com.osmand.OsmandSettings.ApplicationMode;
 import com.osmand.activities.RouteProvider.RouteService;
 import com.osmand.map.TileSourceManager;
 import com.osmand.map.TileSourceManager.TileSourceTemplate;
+import com.osmand.voice.CommandPlayer;
 
 public class SettingsActivity extends PreferenceActivity implements OnPreferenceChangeListener, OnPreferenceClickListener {
 	
@@ -72,7 +77,7 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 	private ListPreference routerPreference;
 	private ListPreference maxLevelToDownload;
 	private ListPreference mapScreenOrientation;
-	
+	private ListPreference voicePreference;
 
 	
 	private BooleanPreference[] booleanPreferences = new BooleanPreference[]{
@@ -87,6 +92,7 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 			new BooleanPreference(OsmandSettings.SAVE_TRACK_TO_GPX, OsmandSettings.SAVE_TRACK_TO_GPX_DEF),
 	};
 	
+	
     @Override
     public void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
@@ -127,6 +133,8 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 		tileSourcePreference.setOnPreferenceChangeListener(this);
 		routerPreference =(ListPreference) screen.findPreference(OsmandSettings.ROUTER_SERVICE);
 		routerPreference.setOnPreferenceChangeListener(this);
+		voicePreference =(ListPreference) screen.findPreference(OsmandSettings.VOICE_PROVIDER);
+		voicePreference.setOnPreferenceChangeListener(this);
 		
     }
     
@@ -194,6 +202,31 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 		routerPreference.setEntries(entries);
 		routerPreference.setEntryValues(entries);
 		routerPreference.setValue(entry);
+
+		// read available voice data
+		File extStorage = new File(Environment.getExternalStorageDirectory(), CommandPlayer.VOICE_DIR);
+		Set<String> setFiles = new LinkedHashSet<String>();
+		if (extStorage.exists()) {
+			for (File f : extStorage.listFiles()) {
+				if (f.isDirectory()) {
+					setFiles.add(f.getName());
+				}
+			}
+		}
+		String provider = OsmandSettings.getVoiceProvider(this);
+		entries = new String[setFiles.size() + 1];
+		int k = 0; 
+		entries[k++] = getString(R.string.voice_not_use);
+		for(String s : setFiles){
+			entries[k++] = s;
+		}
+		voicePreference.setEntries(entries);
+		voicePreference.setEntryValues(entries);
+		if(setFiles.contains(provider)){
+			voicePreference.setValue(provider);
+		} else {
+			voicePreference.setValueIndex(0);
+		}
 		
 		int startZoom = 12;
 		int endZoom = 19;
@@ -280,6 +313,15 @@ public class SettingsActivity extends PreferenceActivity implements OnPreference
 				edit.putInt(OsmandSettings.ROUTER_SERVICE, s.ordinal());
 			}
 			edit.commit();
+		} else if (preference == voicePreference) {
+			int i = voicePreference.findIndexOfValue((String) newValue);
+			if(i==0){
+				edit.putString(OsmandSettings.VOICE_PROVIDER, null);
+			} else {
+				edit.putString(OsmandSettings.VOICE_PROVIDER, (String) newValue);
+			}
+			edit.commit();
+			CommandPlayer.init(this);
 		} else if (preference == tileSourcePreference) {
 			edit.putString(OsmandSettings.MAP_TILE_SOURCES, (String) newValue);
 			edit.commit();

OsmAnd/src/com/osmand/activities/ShowRouteInfoActivity.java

@@ -34,6 +34,7 @@ import com.osmand.activities.RoutingHelper.RouteDirectionInfo;
 import com.osmand.activities.RoutingHelper.TurnType;
 import com.osmand.osm.MapUtils;
 import com.osmand.views.MapInfoLayer;
+import com.osmand.voice.CommandPlayer;
 
 /**
  * 
@@ -62,6 +63,11 @@ public class ShowRouteInfoActivity extends ListActivity {
 		RouteDirectionInfo item = ((RouteInfoAdapter)getListAdapter()).getItem(position - 1);
 		RoutingHelper inst = RoutingHelper.getInstance(this);
 		Location loc = inst.getLocationFromRouteDirection(item);
+		CommandPlayer player = CommandPlayer.getInstance(this);
+		if(player != null){
+			// TODO temp solution
+			player.newCommandBuilder().prepareTurnLeft(300).play();
+		}
 		if(loc != null){
 			OsmandSettings.setMapLocationToShow(this, loc.getLatitude(),loc.getLongitude());
 			startActivity(new Intent(this, MapActivity.class));

OsmAnd/src/com/osmand/views/OsmBugsLayer.java

@@ -190,60 +190,59 @@ public class OsmBugsLayer implements OsmandMapLayer {
 	
 	@Override
 	public boolean onLongPressEvent(PointF point) {
-		if (objects != null && !objects.isEmpty()) {
+		final OpenStreetBug bug = getBugFromPoint(point);
+		if(bug != null){
+			Builder builder = new AlertDialog.Builder(view.getContext());
+			Resources resources = view.getContext().getResources();
+	    	builder.setItems(new String[]{
+	    			resources.getString(R.string.osb_comment_menu_item),
+	    			resources.getString(R.string.osb_close_menu_item)
+	    		}, new DialogInterface.OnClickListener(){
+				@Override
+				public void onClick(DialogInterface dialog, int which) {
+					if(which == 0){
+						commentBug(view.getContext(), activity.getLayoutInflater(), bug);
+					} else if(which == 1){
+						closeBug(view.getContext(), activity.getLayoutInflater(), bug);
+					}
+				}
+	    	});
+			builder.create().show();
+			return true;
+		}
+		return false;
+	}
+	
+	public OpenStreetBug getBugFromPoint(PointF point){
+		OpenStreetBug result = null;
+		if (objects != null) {
 			int ex = (int) point.x;
 			int ey = (int) point.y;
 			int radius = getRadiusBug(view.getZoom()) * 3 / 2;
 			try {
-				for (final OpenStreetBug n : objects) {
+				for (int i = 0; i < objects.size(); i++) {
+					OpenStreetBug n = objects.get(i);
 					int x = view.getRotatedMapXForPoint(n.getLatitude(), n.getLongitude());
 					int y = view.getRotatedMapYForPoint(n.getLatitude(), n.getLongitude());
 					if (Math.abs(x - ex) <= radius && Math.abs(y - ey) <= radius) {
-						Builder builder = new AlertDialog.Builder(view.getContext());
+						radius = Math.max(Math.abs(x - ex), Math.abs(y - ey));
-						Resources resources = view.getContext().getResources();
+						result = n;
-				    	builder.setItems(new String[]{
-				    			resources.getString(R.string.osb_comment_menu_item),
-				    			resources.getString(R.string.osb_close_menu_item)
-				    		}, new DialogInterface.OnClickListener(){
-							@Override
-							public void onClick(DialogInterface dialog, int which) {
-								if(which == 0){
-									commentBug(view.getContext(), activity.getLayoutInflater(), n);
-								} else if(which == 1){
-									closeBug(view.getContext(), activity.getLayoutInflater(), n);
-								}
-							}
-				    	});
-						builder.create().show();
-						return true;
 					}
 				}
 			} catch (IndexOutOfBoundsException e) {
 				// that's really rare case, but is much efficient than introduce synchronized block
 			}
 		}
-		return false;
+		return result;
 	}
 
 	@Override
 	public boolean onTouchEvent(PointF point) {
-		if (objects != null && !objects.isEmpty()) {
+		OpenStreetBug bug = getBugFromPoint(point);
-			int ex = (int) point.x;
+		if(bug != null){
-			int ey = (int) point.y;
+			String format = "Bug : " + bug.getName(); //$NON-NLS-1$
-			int radius = getRadiusBug(view.getZoom()) * 3 / 2;
+			Toast.makeText(view.getContext(), format, Toast.LENGTH_LONG).show();
-			try {
+			return true;
-				for (OpenStreetBug n : objects) {
-					int x = view.getRotatedMapXForPoint(n.getLatitude(), n.getLongitude());
-					int y = view.getRotatedMapYForPoint(n.getLatitude(), n.getLongitude());
-					if (Math.abs(x - ex) <= radius && Math.abs(y - ey) <= radius) {
-						String format = "Bug : " + n.getName(); //$NON-NLS-1$
-						Toast.makeText(view.getContext(), format, Toast.LENGTH_LONG).show();
-						return true;
-					}
-				}
-			} catch (IndexOutOfBoundsException e) {
-				// that's really rare case, but is much efficient than introduce synchronized block
-			}
 		}
 		return false;
 	}

OsmAnd/src/com/osmand/views/OsmandMapTileView.java

@@ -694,7 +694,8 @@ public class OsmandMapTileView extends SurfaceView implements IMapDownloaderCall
 
 	@Override
 	public boolean onDown(MotionEvent e) {
-		animatedDraggingThread.stopAnimating();
+		// enable double tap animation	
+//		animatedDraggingThread.stopAnimating();
 		return false;
 	}
 	
@@ -792,8 +793,8 @@ public class OsmandMapTileView extends SurfaceView implements IMapDownloaderCall
 	@Override
 	public boolean onDoubleTap(MotionEvent e) {
 		LatLon l = getLatLonFromScreenPoint(e.getX(), e.getY());
-		setLatLon(l.getLatitude(), l.getLongitude());
+		getAnimatedDraggingThread().startMoving(getLatitude(), getLongitude(), 
-		setZoom(zoom + 1);
+				l.getLatitude(), l.getLongitude(), getZoom(), getZoom() + 1, getSourceTileSize(), getRotate(), true);
 		return true;
 	}
 

OsmAnd/src/com/osmand/views/POIMapLayer.java

@@ -74,6 +74,7 @@ public class POIMapLayer implements OsmandMapLayer {
 	}
 	
 	public Amenity getAmenityFromPoint(PointF point){
+		Amenity result = null;
 		if (objects != null) {
 			int ex = (int) point.x;
 			int ey = (int) point.y;
@@ -84,14 +85,15 @@ public class POIMapLayer implements OsmandMapLayer {
 					int x = view.getRotatedMapXForPoint(n.getLocation().getLatitude(), n.getLocation().getLongitude());
 					int y = view.getRotatedMapYForPoint(n.getLocation().getLatitude(), n.getLocation().getLongitude());
 					if (Math.abs(x - ex) <= radius && Math.abs(y - ey) <= radius) {
-						return n;
+						radius = Math.max(Math.abs(x - ex), Math.abs(y - ey));
+						result = n;
 					}
 				}
 			} catch (IndexOutOfBoundsException e) {
 				// that's really rare case, but is much efficient than introduce synchronized block
 			}
 		}
-		return null;
+		return result;
 	}
 	
 

OsmAnd/src/com/osmand/views/TransportStopsLayer.java

@@ -44,6 +44,7 @@ public class TransportStopsLayer implements OsmandMapLayer {
 	}
 	
 	public TransportStop getFromPoint(PointF point){
+		TransportStop result = null;
 		if (objects != null) {
 			int ex = (int) point.x;
 			int ey = (int) point.y;
@@ -54,14 +55,15 @@ public class TransportStopsLayer implements OsmandMapLayer {
 					int x = view.getRotatedMapXForPoint(n.getLocation().getLatitude(), n.getLocation().getLongitude());
 					int y = view.getRotatedMapYForPoint(n.getLocation().getLatitude(), n.getLocation().getLongitude());
 					if (Math.abs(x - ex) <= radius && Math.abs(y - ey) <= radius) {
-						return n;
+						radius = Math.max(Math.abs(x - ex), Math.abs(y - ey));
+						result = n;
 					}
 				}
 			} catch (IndexOutOfBoundsException e) {
 				// that's really rare case, but is much efficient than introduce synchronized block
 			}
 		}
-		return null;
+		return result;
 	}
 	
 

OsmAnd/src/com/osmand/voice/CommandPlayer.java

@@ -0,0 +1,312 @@
+package com.osmand.voice;
+
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.commons.logging.Log;
+
+import alice.tuprolog.InvalidLibraryException;
+import alice.tuprolog.InvalidTheoryException;
+import alice.tuprolog.NoSolutionException;
+import alice.tuprolog.Number;
+import alice.tuprolog.Prolog;
+import alice.tuprolog.SolveInfo;
+import alice.tuprolog.Struct;
+import alice.tuprolog.Term;
+import alice.tuprolog.Theory;
+import alice.tuprolog.Var;
+import android.content.Context;
+import android.media.MediaPlayer;
+import android.os.Environment;
+
+import com.osmand.Algoritms;
+import com.osmand.LogUtil;
+import com.osmand.OsmandSettings;
+import com.osmand.R;
+import com.osmand.ResourceManager;
+
+public class CommandPlayer {
+	
+	public static final String VOICE_DIR = ResourceManager.APP_DIR + "/voice"; //$NON-NLS-1$
+	public static final int VOICE_VERSION = 0;
+	private static final Log log = LogUtil.getLog(CommandPlayer.class);
+	
+	private static CommandPlayer instance = null;
+
+	protected Context ctx;
+	private File voiceDir;
+	
+	// resolving commands to play
+	private Prolog prologSystem;
+	
+	// playing media
+	private MediaPlayer mediaPlayer;
+	private List<String> filesToPlay = new ArrayList<String>();
+
+	/**
+	 * @param ctx
+	 * @return null could be returned it means there is no available voice config
+	 */
+	public static CommandPlayer getInstance(Context ctx) {
+		init(ctx);
+		return instance;
+	}
+	
+	
+	public static String init(Context ctx){
+		if(OsmandSettings.getVoiceProvider(ctx) == null && instance == null){
+			return null;
+		}
+		if(instance == null){
+			long time = System.currentTimeMillis();
+			instance = new CommandPlayer(ctx);
+			if (log.isInfoEnabled()) {
+				log.info("Initializing prolog system : " + (System.currentTimeMillis() - time)); //$NON-NLS-1$
+			}
+		}
+		instance.ctx = ctx;
+		if(!Algoritms.objectEquals(OsmandSettings.getVoiceProvider(ctx), instance.getCurrentVoice())){
+			return instance.init();
+		}
+		
+		return null;
+	}
+	
+	protected CommandPlayer(Context ctx){
+		try {
+			this.ctx = ctx;
+			prologSystem = new Prolog(new String[]{"alice.tuprolog.lib.BasicLibrary"}); //$NON-NLS-1$
+		} catch (InvalidLibraryException e) {
+			log.error("Initializing error", e); //$NON-NLS-1$
+			throw new RuntimeException(e);
+		}
+		mediaPlayer = new MediaPlayer();
+	}
+	
+	public String getCurrentVoice(){
+		if(voiceDir == null){
+			return null;
+		}
+		return voiceDir.getName(); 
+	}
+	
+	protected String init(){
+		String voiceProvider = OsmandSettings.getVoiceProvider(ctx);
+		prologSystem.clearTheory();
+		voiceDir = null;
+		if(voiceProvider != null){
+			File parent = new File(Environment.getExternalStorageDirectory(), VOICE_DIR);
+			voiceDir = new File(parent, voiceProvider);
+			if(!voiceDir.exists()){
+				voiceDir = null;
+				return ctx.getString(R.string.voice_data_unavailable);
+			}
+		}
+		if(voiceDir != null) {
+			long time = System.currentTimeMillis();
+			File config = new File(voiceDir, "_config.p"); //$NON-NLS-1$
+			boolean wrong = !config.exists();
+				
+			if (!wrong) {
+
+				try {
+					prologSystem.setTheory(new Theory(new FileInputStream(config)));
+				} catch (InvalidTheoryException e) {
+					log.error("Loading voice config exception " + voiceProvider, e); //$NON-NLS-1$
+				} catch (IOException e) {
+					log.error("Loading voice config exception " + voiceProvider, e); //$NON-NLS-1$
+				}
+			}
+			if(wrong){
+				return ctx.getString(R.string.voice_data_corrupted);
+			} else {
+				boolean versionSupported = false;
+				Var v = new Var("VERSION"); //$NON-NLS-1$
+				SolveInfo s = prologSystem.solve(new Struct(P_VERSION, v));
+				if(s.isSuccess()){
+					prologSystem.solveEnd();
+					try {
+						Term val = s.getVarValue(v.getName());
+						if(val instanceof Number){
+							versionSupported = ((Number) val).intValue() == VOICE_VERSION;
+						}
+					} catch (NoSolutionException e) {
+					}
+				}
+				if(!versionSupported){
+					return ctx.getString(R.string.voice_data_not_supported);
+				}
+			}
+			
+			if (log.isInfoEnabled()) {
+				log.info("Initializing voice subsystem  " + voiceProvider + " : " + (System.currentTimeMillis() - time)); //$NON-NLS-1$ //$NON-NLS-2$
+			}
+			
+		}
+		return null;
+	}
+	
+	public CommandBuilder newCommandBuilder(){
+		return new CommandBuilder();
+	}
+	
+	protected static final String P_VERSION = "version";  //$NON-NLS-1$
+	protected static final String P_RESOLVE = "resolve";  //$NON-NLS-1$
+	
+	protected static final String С_PREPARE_TURN_LEFT = "prepare_turn_left";  //$NON-NLS-1$
+	protected static final String С_PREPARE_TURN_RIGHT = "prepare_turn_right";  //$NON-NLS-1$
+	protected static final String С_PREAMBLE = "preamble";  //$NON-NLS-1$
+	
+	protected static final String DELAY_CONST = "delay_"; //$NON-NLS-1$
+	
+	public class CommandBuilder {
+		
+		
+		private boolean alreadyExecuted = false;
+		private List<Struct> listStruct = new ArrayList<Struct>();
+		
+		public CommandBuilder(){
+			this(true);
+		}
+		
+		public CommandBuilder(boolean preamble) {
+			if (preamble) {
+				addCommand(С_PREAMBLE);
+			}
+		}
+		
+		private void checkState(){
+			if(alreadyExecuted){
+				throw new IllegalArgumentException();
+			}
+		}
+		
+		private CommandBuilder addCommand(String name, Object... args){
+			checkState();
+			Term[] list = new Term[args.length];
+			for (int i = 0; i < args.length; i++) {
+				Object o = args[i];
+				if(o instanceof java.lang.Number){
+					if(o instanceof java.lang.Double){
+						list[i] = new alice.tuprolog.Double((Double) o);
+					} else if(o instanceof java.lang.Float){
+						list[i] = new alice.tuprolog.Float((Float) o);
+					} else if(o instanceof java.lang.Long){
+						list[i] = new alice.tuprolog.Long((Long) o);
+					} else {
+						list[i] = new alice.tuprolog.Int(((java.lang.Number)o).intValue());
+					}
+				} else if(o instanceof String){
+					list[i] = new Struct((String) o);
+				}
+				if(list[i]== null){
+					throw new NullPointerException(name +" " + o); //$NON-NLS-1$
+				}
+			}
+			Struct struct = new Struct(name, list);
+			listStruct.add(struct);
+			return this;
+		}
+		
+		public CommandBuilder prepareTurnLeft(double dist){
+			return addCommand(С_PREPARE_TURN_LEFT, dist);
+		}
+		
+		public CommandBuilder prepareTurnRight(double dist){
+			return addCommand(С_PREPARE_TURN_LEFT, dist);
+		}
+		
+		public void play(){
+			CommandPlayer.this.playCommands(this);
+		}
+		
+		protected List<String> execute(){
+			alreadyExecuted = true;
+			return CommandPlayer.this.execute(listStruct);
+		}
+		
+	}
+	
+	protected List<String> execute(List<Struct> listCmd){
+		Struct list = new Struct(listCmd.toArray(new Term[listCmd.size()]));
+		Var result = new Var("RESULT"); //$NON-NLS-1$
+		List<String> files = new ArrayList<String>();
+		SolveInfo res = prologSystem.solve(new Struct(P_RESOLVE, list, result));
+		
+		if (res.isSuccess()) {
+			try {
+				prologSystem.solveEnd();	
+				Term solution = res.getVarValue(result.getName());
+				
+				Iterator<?> listIterator = ((Struct) solution).listIterator();
+				while(listIterator.hasNext()){
+					Object term = listIterator.next();
+					if(term instanceof Struct){
+						files.add(((Struct) term).getName());
+					}
+				}
+				
+			} catch (NoSolutionException e) {
+			}
+		}
+		return files;
+	}
+	
+	public void playCommands(CommandBuilder builder){
+		filesToPlay.addAll(builder.execute());
+		playQueue();
+	}
+	
+	private void playQueue() {
+		boolean playNext = true;
+		while (!filesToPlay.isEmpty() && playNext) {
+			String f = filesToPlay.remove(0);
+			if (f != null && voiceDir != null) {
+				File file = new File(voiceDir, f);
+				if (file.exists()) {
+					try {
+						mediaPlayer.setDataSource(file.getAbsolutePath());
+						mediaPlayer.prepare();
+						mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
+							public void onCompletion(MediaPlayer mp) {
+								mediaPlayer = new MediaPlayer();
+								int sleep = 60;
+								boolean delay = true;
+								while (!filesToPlay.isEmpty() && delay) {
+									delay = filesToPlay.get(0).startsWith(DELAY_CONST);
+									if (delay) {
+										String s = filesToPlay.remove(0).substring(DELAY_CONST.length());
+										try {
+											sleep += Integer.parseInt(s);
+										} catch (NumberFormatException e) {
+										}
+									}
+								}
+								try {
+									Thread.sleep(sleep);
+								} catch (InterruptedException e) {
+								}
+								playQueue();
+							}
+						});
+						playNext = false;
+						mediaPlayer.start();
+					} catch (Exception e) {
+						log.error("Error while playing voice command", e); //$NON-NLS-1$
+						playNext = true;
+						
+					}
+				}
+			}
+		}
+	}
+	
+}	
+	
+	
+