travel obf resource manager reader added

This commit is contained in:
simon 2020-12-09 14:55:35 +02:00
parent c949f98329
commit 16ae7b28c1
2 changed files with 132 additions and 112 deletions

View file

@ -19,8 +19,10 @@ import net.osmand.IndexConstants;
import net.osmand.Location;
import net.osmand.PlatformUtil;
import net.osmand.ResultMatcher;
import net.osmand.binary.BinaryIndexPart;
import net.osmand.binary.BinaryMapIndexReader;
import net.osmand.binary.BinaryMapIndexReader.SearchPoiTypeFilter;
import net.osmand.binary.BinaryMapPoiReaderAdapter;
import net.osmand.binary.CachedOsmandIndexes;
import net.osmand.data.Amenity;
import net.osmand.data.RotatedTileBox;
@ -75,15 +77,14 @@ import java.util.Map.Entry;
import java.util.TreeMap;
import java.util.concurrent.ConcurrentHashMap;
import static net.osmand.IndexConstants.VOICE_INDEX_DIR;
/**
* Resource manager is responsible to work with all resources
* Resource manager is responsible to work with all resources
* that could consume memory (especially with file resources).
* Such as indexes, tiles.
* Also it is responsible to create cache for that resources if they
* can't be loaded fully into memory & clear them on request.
* can't be loaded fully into memory & clear them on request.
*/
public class ResourceManager {
@ -91,10 +92,10 @@ public class ResourceManager {
private static final String INDEXES_CACHE = "ind.cache";
private static final Log log = PlatformUtil.getLog(ResourceManager.class);
protected static ResourceManager manager = null;
protected File dirWithTiles ;
protected File dirWithTiles;
private List<TilesCache> tilesCacheList = new ArrayList<>();
private BitmapTilesCache bitmapTilesCache;
@ -115,21 +116,22 @@ public class ResourceManager {
STREET_LOOKUP,
TRANSPORT,
ADDRESS,
QUICK_SEARCH,
QUICK_SEARCH,
ROUTING,
TRANSPORT_ROUTING
}
public static class BinaryMapReaderResource {
private BinaryMapIndexReader initialReader;
private File filename;
private List<BinaryMapIndexReader> readers = new ArrayList<>(BinaryMapReaderResourceType.values().length);
private boolean useForRouting;
private boolean useForPublicTransport;
public BinaryMapReaderResource(File f, BinaryMapIndexReader initialReader) {
this.filename = f;
this.initialReader = initialReader;
while(readers.size() < BinaryMapReaderResourceType.values().length) {
while (readers.size() < BinaryMapReaderResourceType.values().length) {
readers.add(null);
}
}
@ -173,7 +175,7 @@ public class ResourceManager {
}
initialReader = null;
}
public boolean isClosed() {
return initialReader == null;
}
@ -189,7 +191,7 @@ public class ResourceManager {
public void setUseForRouting(boolean useForRouting) {
this.useForRouting = useForRouting;
}
public boolean isUseForRouting() {
return useForRouting;
}
@ -202,34 +204,34 @@ public class ResourceManager {
this.useForPublicTransport = useForPublicTransport;
}
}
protected final Map<String, BinaryMapReaderResource> fileReaders = new ConcurrentHashMap<String, BinaryMapReaderResource>();
private final Map<String, RegionAddressRepository> addressMap = new ConcurrentHashMap<String, RegionAddressRepository>();
protected final Map<String, AmenityIndexRepository> amenityRepositories = new ConcurrentHashMap<String, AmenityIndexRepository>();
// protected final Map<String, BinaryMapIndexReader> routingMapFiles = new ConcurrentHashMap<String, BinaryMapIndexReader>();
protected final Map<String, AmenityIndexRepository> amenityRepositories = new ConcurrentHashMap<String, AmenityIndexRepository>();
// protected final Map<String, BinaryMapIndexReader> routingMapFiles = new ConcurrentHashMap<String, BinaryMapIndexReader>();
protected final Map<String, BinaryMapReaderResource> transportRepositories = new ConcurrentHashMap<String, BinaryMapReaderResource>();
protected final Map<String, String> indexFileNames = new ConcurrentHashMap<String, String>();
protected final Map<String, String> basemapFileNames = new ConcurrentHashMap<String, String>();
protected final IncrementalChangesManager changesManager = new IncrementalChangesManager(this);
protected final MapRenderRepositories renderer;
protected final MapTileDownloader tileDownloader;
public final AsyncLoadingThread asyncLoadingThread = new AsyncLoadingThread(this);
private HandlerThread renderingBufferImageThread;
protected boolean internetIsNotAccessible = false;
private boolean depthContours;
public ResourceManager(OsmandApplication context) {
this.context = context;
this.renderer = new MapRenderRepositories(context);
@ -271,7 +273,7 @@ public class ResourceManager {
public MapTileDownloader getMapTileDownloader() {
return tileDownloader;
}
public HandlerThread getRenderingBufferImageThread() {
return renderingBufferImageThread;
}
@ -293,17 +295,17 @@ public class ResourceManager {
// ".nomedia" indicates there are no pictures and no music to list in this dir for the Gallery app
try {
context.getAppPath(".nomedia").createNewFile(); //$NON-NLS-1$
} catch( Exception e ) {
} catch (Exception e) {
}
for (TilesCache tilesCache : tilesCacheList) {
tilesCache.setDirWithTiles(dirWithTiles);
}
}
public java.text.DateFormat getDateFormat() {
return DateFormat.getDateFormat(context);
}
public OsmandApplication getContext() {
return context;
}
@ -323,7 +325,7 @@ public class ResourceManager {
return null;
}
public synchronized void tileDownloaded(DownloadRequest request){
public synchronized void tileDownloaded(DownloadRequest request) {
if (request instanceof TileLoadDownloadRequest) {
TileLoadDownloadRequest req = ((TileLoadDownloadRequest) request);
TilesCache cache = getTilesCache(req.tileSource);
@ -332,13 +334,13 @@ public class ResourceManager {
}
}
}
public synchronized boolean tileExistOnFileSystem(String file, ITileSource map, int x, int y, int zoom) {
TilesCache cache = getTilesCache(map);
return cache != null && cache.tileExistOnFileSystem(file, map, x, y, zoom);
}
public void clearTileForMap(String file, ITileSource map, int x, int y, int zoom){
public void clearTileForMap(String file, ITileSource map, int x, int y, int zoom) {
TilesCache cache = getTilesCache(map);
if (cache != null) {
cache.getTileForMap(file, map, x, y, zoom, true, false, true, true);
@ -376,7 +378,7 @@ public class ResourceManager {
////////////////////////////////////////////// Working with indexes ////////////////////////////////////////////////
public List<String> reloadIndexesOnStart(AppInitializer progress, List<String> warnings){
public List<String> reloadIndexesOnStart(AppInitializer progress, List<String> warnings) {
close();
// check we have some assets to copy to sdcard
warnings.addAll(checkAssets(progress, false));
@ -429,7 +431,7 @@ public class ResourceManager {
return warnings;
}
public List<String> indexFontFiles(IProgress progress){
public List<String> indexFontFiles(IProgress progress) {
File file = context.getAppPath(IndexConstants.FONT_INDEX_DIR);
file.mkdirs();
List<String> warnings = new ArrayList<String>();
@ -473,10 +475,10 @@ public class ResourceManager {
log.error("Error while loading tts files from assets", e);
}
}
public List<String> checkAssets(IProgress progress, boolean forceUpdate) {
String fv = Version.getFullVersion(context);
if(context.getAppInitializer().isAppVersionChanged()) {
if (context.getAppInitializer().isAppVersionChanged()) {
copyMissingJSAssets();
}
if (!fv.equalsIgnoreCase(context.getSettings().PREVIOUS_INSTALLED_VERSION.get()) || forceUpdate) {
@ -509,7 +511,7 @@ public class ResourceManager {
}
return Collections.emptyList();
}
private void copyRegionsBoundaries() {
try {
File file = context.getAppPath("regions.ocbf");
@ -522,7 +524,7 @@ public class ResourceManager {
log.error(e.getMessage(), e);
}
}
private void copyPoiTypes() {
try {
File file = context.getAppPath(IndexConstants.SETTINGS_DIR + "poi_types.xml");
@ -540,6 +542,7 @@ public class ResourceManager {
private final static String ASSET_COPY_MODE__overwriteOnlyIfExists = "overwriteOnlyIfExists";
private final static String ASSET_COPY_MODE__alwaysOverwriteOrCopy = "alwaysOverwriteOrCopy";
private final static String ASSET_COPY_MODE__copyOnlyIfDoesNotExist = "copyOnlyIfDoesNotExist";
private void unpackBundledAssets(AssetManager assetManager, File appDataDir, IProgress progress, boolean isFirstInstall) throws IOException, XmlPullParserException {
List<AssetEntry> assetEntries = DownloadOsmandIndexesHelper.getBundledAssets(assetManager);
for (AssetEntry asset : assetEntries) {
@ -581,7 +584,7 @@ public class ResourceManager {
}
public static void copyAssets(AssetManager assetManager, String assetName, File file) throws IOException {
if(file.exists()){
if (file.exists()) {
Algorithms.removeAllFiles(file);
}
file.getParentFile().mkdirs();
@ -593,9 +596,9 @@ public class ResourceManager {
}
private List<File> collectFiles(File dir, String ext, List<File> files) {
if(dir.exists() && dir.canRead()) {
if (dir.exists() && dir.canRead()) {
File[] lf = dir.listFiles();
if(lf == null || lf.length == 0) {
if (lf == null || lf.length == 0) {
return files;
}
for (File f : lf) {
@ -606,12 +609,11 @@ public class ResourceManager {
}
return files;
}
private void renameRoadsFiles(ArrayList<File> files, File roadsPath) {
Iterator<File> it = files.iterator();
while(it.hasNext()) {
while (it.hasNext()) {
File f = it.next();
if (f.getName().endsWith("-roads" + IndexConstants.BINARY_MAP_INDEX_EXT)) {
f.renameTo(new File(roadsPath, f.getName().replace("-roads" + IndexConstants.BINARY_MAP_INDEX_EXT,
@ -628,17 +630,18 @@ public class ResourceManager {
File appPath = context.getAppPath(null);
File roadsPath = context.getAppPath(IndexConstants.ROADS_INDEX_DIR);
roadsPath.mkdirs();
collectFiles(appPath, IndexConstants.BINARY_MAP_INDEX_EXT, files);
renameRoadsFiles(files, roadsPath);
collectFiles(roadsPath, IndexConstants.BINARY_MAP_INDEX_EXT, files);
if (Version.isPaidVersion(context)) {
collectFiles(context.getAppPath(IndexConstants.WIKI_INDEX_DIR), IndexConstants.BINARY_MAP_INDEX_EXT, files);
collectFiles(context.getAppPath(IndexConstants.WIKIVOYAGE_INDEX_DIR), IndexConstants.BINARY_MAP_INDEX_EXT, files);
}
if (OsmandPlugin.getEnabledPlugin(SRTMPlugin.class) != null || InAppPurchaseHelper.isSubscribedToLiveUpdates(context)) {
collectFiles(context.getAppPath(IndexConstants.SRTM_INDEX_DIR), IndexConstants.BINARY_MAP_INDEX_EXT, files);
}
changesManager.collectChangesFiles(context.getAppPath(IndexConstants.LIVE_INDEX_DIR), IndexConstants.BINARY_MAP_INDEX_EXT, files);
Collections.sort(files, Algorithms.getFileVersionComparator());
@ -707,9 +710,9 @@ public class ResourceManager {
if (dateCreated == 0) {
dateCreated = f.lastModified();
}
if(f.getParentFile().getName().equals(liveDir.getName())) {
if (f.getParentFile().getName().equals(liveDir.getName())) {
boolean toUse = changesManager.index(f, dateCreated, mapReader);
if(!toUse) {
if (!toUse) {
try {
mapReader.close();
} catch (IOException e) {
@ -717,7 +720,7 @@ public class ResourceManager {
}
continue;
}
} else if(!wikiMap && !srtmMap) {
} else if (!wikiMap && !srtmMap) {
changesManager.indexMainMap(f, dateCreated);
}
indexFileNames.put(f.getName(), dateFormat.format(dateCreated)); //$NON-NLS-1$
@ -726,7 +729,7 @@ public class ResourceManager {
}
renderer.initializeNewResource(progress, f, mapReader);
BinaryMapReaderResource resource = new BinaryMapReaderResource(f, mapReader);
fileReaders.put(f.getName(), resource);
if (!mapReader.getRegionNames().isEmpty()) {
RegionAddressRepositoryBinary rarb = new RegionAddressRepositoryBinary(this, resource);
@ -736,7 +739,7 @@ public class ResourceManager {
transportRepositories.put(f.getName(), resource);
}
// disable osmc for routing temporarily due to some bugs
if (mapReader.containsRouteData() && (!f.getParentFile().equals(liveDir) ||
if (mapReader.containsRouteData() && (!f.getParentFile().equals(liveDir) ||
context.getSettings().USE_OSM_LIVE_FOR_ROUTING.get())) {
resource.setUseForRouting(true);
}
@ -779,7 +782,7 @@ public class ResourceManager {
}
}
Iterator<Entry<PoiCategory, Map<String, PoiType>>> it = toAddPoiTypes.entrySet().iterator();
while(it.hasNext()) {
while (it.hasNext()) {
Entry<PoiCategory, Map<String, PoiType>> next = it.next();
PoiCategory category = next.getKey();
category.addExtraPoiTypes(next.getValue());
@ -798,7 +801,6 @@ public class ResourceManager {
return warnings;
}
public void initMapBoundariesCacheNative() {
File indCache = context.getAppPath(INDEXES_CACHE);
@ -809,7 +811,7 @@ public class ResourceManager {
}
}
}
////////////////////////////////////////////// Working with amenities ////////////////////////////////////////////////
public List<AmenityIndexRepository> getAmenityRepositories() {
@ -826,7 +828,7 @@ public class ResourceManager {
}
public List<Amenity> searchAmenities(SearchPoiTypeFilter filter,
double topLatitude, double leftLongitude, double bottomLatitude, double rightLongitude, int zoom, final ResultMatcher<Amenity> matcher) {
double topLatitude, double leftLongitude, double bottomLatitude, double rightLongitude, int zoom, final ResultMatcher<Amenity> matcher) {
final List<Amenity> amenities = new ArrayList<Amenity>();
searchAmenitiesInProgress = true;
try {
@ -855,8 +857,8 @@ public class ResourceManager {
return amenities;
}
public List<Amenity> searchAmenitiesOnThePath(List<Location> locations, double radius, SearchPoiTypeFilter filter,
ResultMatcher<Amenity> matcher) {
public List<Amenity> searchAmenitiesOnThePath(List<Location> locations, double radius, SearchPoiTypeFilter filter,
ResultMatcher<Amenity> matcher) {
searchAmenitiesInProgress = true;
final List<Amenity> amenities = new ArrayList<Amenity>();
try {
@ -875,9 +877,9 @@ public class ResourceManager {
if (!filter.isEmpty()) {
for (AmenityIndexRepository index : getAmenityRepositories()) {
if (index.checkContainsInt(
MapUtils.get31TileNumberY(topLatitude),
MapUtils.get31TileNumberX(leftLongitude),
MapUtils.get31TileNumberY(bottomLatitude),
MapUtils.get31TileNumberY(topLatitude),
MapUtils.get31TileNumberX(leftLongitude),
MapUtils.get31TileNumberY(bottomLatitude),
MapUtils.get31TileNumberX(rightLongitude))) {
repos.add(index);
}
@ -885,7 +887,7 @@ public class ResourceManager {
if (!repos.isEmpty()) {
for (AmenityIndexRepository r : repos) {
List<Amenity> res = r.searchAmenitiesOnThePath(locations, radius, filter, matcher);
if(res != null) {
if (res != null) {
amenities.addAll(res);
}
}
@ -897,12 +899,12 @@ public class ResourceManager {
}
return amenities;
}
public boolean containsAmenityRepositoryToSearch(boolean searchByName){
public boolean containsAmenityRepositoryToSearch(boolean searchByName) {
for (AmenityIndexRepository index : getAmenityRepositories()) {
if(searchByName){
if(index instanceof AmenityIndexRepositoryBinary){
if (searchByName) {
if (index instanceof AmenityIndexRepositoryBinary) {
return true;
}
} else {
@ -911,10 +913,10 @@ public class ResourceManager {
}
return false;
}
public List<Amenity> searchAmenitiesByName(String searchQuery,
double topLatitude, double leftLongitude, double bottomLatitude, double rightLongitude,
double lat, double lon, ResultMatcher<Amenity> matcher) {
double topLatitude, double leftLongitude, double bottomLatitude, double rightLongitude,
double lat, double lon, ResultMatcher<Amenity> matcher) {
List<Amenity> amenities = new ArrayList<Amenity>();
List<AmenityIndexRepositoryBinary> list = new ArrayList<AmenityIndexRepositoryBinary>();
int left = MapUtils.get31TileNumberX(leftLongitude);
@ -927,16 +929,16 @@ public class ResourceManager {
}
if (index instanceof AmenityIndexRepositoryBinary) {
if (index.checkContainsInt(top, left, bottom, right)) {
if(index.checkContains(lat, lon)){
if (index.checkContains(lat, lon)) {
list.add(0, (AmenityIndexRepositoryBinary) index);
} else {
list.add((AmenityIndexRepositoryBinary) index);
}
}
}
}
// Not using boundares results in very slow initial search if user has many maps installed
// int left = 0;
// int top = 0;
@ -954,7 +956,7 @@ public class ResourceManager {
return amenities;
}
public Map<PoiCategory, List<String>> searchAmenityCategoriesByName(String searchQuery, double lat, double lon) {
Map<PoiCategory, List<String>> map = new LinkedHashMap<PoiCategory, List<String>>();
for (AmenityIndexRepository index : getAmenityRepositories()) {
@ -970,17 +972,17 @@ public class ResourceManager {
public AmenityIndexRepositoryBinary getAmenityRepositoryByFileName(String filename) {
return (AmenityIndexRepositoryBinary) amenityRepositories.get(filename);
}
////////////////////////////////////////////// Working with address ///////////////////////////////////////////
public RegionAddressRepository getRegionRepository(String name){
public RegionAddressRepository getRegionRepository(String name) {
return addressMap.get(name);
}
public Collection<RegionAddressRepository> getAddressRepositories(){
public Collection<RegionAddressRepository> getAddressRepositories() {
return addressMap.values();
}
public Collection<BinaryMapReaderResource> getFileReaders() {
List<String> fileNames = new ArrayList<>(fileReaders.keySet());
Collections.sort(fileNames, Algorithms.getStringVersionComparator());
@ -993,8 +995,8 @@ public class ResourceManager {
}
return res;
}
////////////////////////////////////////////// Working with transport ////////////////////////////////////////////////
private List<BinaryMapIndexReader> getTransportRepositories(double topLat, double leftLon, double bottomLat, double rightLon) {
@ -1013,7 +1015,7 @@ public class ResourceManager {
public List<TransportStop> searchTransportSync(double topLat, double leftLon, double bottomLat, double rightLon,
ResultMatcher<TransportStop> matcher) throws IOException {
ResultMatcher<TransportStop> matcher) throws IOException {
TransportStopsRouteReader readers =
new TransportStopsRouteReader(getTransportRepositories(topLat, leftLon, bottomLat, rightLon));
List<TransportStop> stops = new ArrayList<>();
@ -1030,7 +1032,7 @@ public class ResourceManager {
public List<TransportRoute> getRoutesForStop(TransportStop stop) {
List<TransportRoute> rts = stop.getRoutes();
if(rts != null) {
if (rts != null) {
return rts;
}
return Collections.emptyList();
@ -1040,26 +1042,26 @@ public class ResourceManager {
public boolean updateRenderedMapNeeded(RotatedTileBox rotatedTileBox, DrawSettings drawSettings) {
return renderer.updateMapIsNeeded(rotatedTileBox, drawSettings);
}
public void updateRendererMap(RotatedTileBox rotatedTileBox, OnMapLoadedListener mapLoadedListener){
public void updateRendererMap(RotatedTileBox rotatedTileBox, OnMapLoadedListener mapLoadedListener) {
renderer.interruptLoadingMap();
asyncLoadingThread.requestToLoadMap(new MapLoadRequest(rotatedTileBox, mapLoadedListener));
}
public void interruptRendering(){
public void interruptRendering() {
renderer.interruptLoadingMap();
}
public boolean isSearchAmenitiesInProgress() {
return searchAmenitiesInProgress;
}
public MapRenderRepositories getRenderer() {
return renderer;
}
////////////////////////////////////////////// Closing methods ////////////////////////////////////////////////
public void closeFile(String fileName) {
amenityRepositories.remove(fileName);
addressMap.remove(fileName);
@ -1067,12 +1069,12 @@ public class ResourceManager {
indexFileNames.remove(fileName);
renderer.closeConnection(fileName);
BinaryMapReaderResource resource = fileReaders.remove(fileName);
if(resource != null) {
if (resource != null) {
resource.close();
}
}
}
public synchronized void close(){
public synchronized void close() {
for (TilesCache tc : tilesCacheList) {
tc.close();
}
@ -1082,13 +1084,13 @@ public class ResourceManager {
transportRepositories.clear();
addressMap.clear();
amenityRepositories.clear();
for(BinaryMapReaderResource res : fileReaders.values()) {
for (BinaryMapReaderResource res : fileReaders.values()) {
res.close();
}
fileReaders.clear();
}
public BinaryMapIndexReader[] getRoutingMapFiles() {
Collection<BinaryMapReaderResource> fileReaders = getFileReaders();
List<BinaryMapIndexReader> readers = new ArrayList<>(fileReaders.size());
@ -1107,7 +1109,7 @@ public class ResourceManager {
Collection<BinaryMapReaderResource> fileReaders = getFileReaders();
List<BinaryMapIndexReader> readers = new ArrayList<>(fileReaders.size());
for (BinaryMapReaderResource r : fileReaders) {
if (r.isUseForPublicTransport()) {
if (r.isUseForPublicTransport()) {
BinaryMapIndexReader reader = r.getReader(BinaryMapReaderResourceType.TRANSPORT_ROUTING);
if (reader != null) {
readers.add(reader);
@ -1132,12 +1134,29 @@ public class ResourceManager {
return readers.toArray(new BinaryMapIndexReader[0]);
}
public BinaryMapIndexReader[] getTravelFiles() {
Collection<BinaryMapReaderResource> fileReaders = getFileReaders();
List<BinaryMapIndexReader> readers = new ArrayList<>(fileReaders.size());
for (BinaryMapReaderResource res : fileReaders) {
if (!res.filename.toString().toLowerCase().contains("wiki")) {
continue;
}
BinaryMapIndexReader index = res.getReader(BinaryMapReaderResourceType.POI);
for (BinaryIndexPart p : index.getIndexes()) {
if (p instanceof BinaryMapPoiReaderAdapter.PoiRegion) {
readers.add(index);
}
}
}
return readers.toArray(new BinaryMapIndexReader[0]);
}
public Map<String, String> getIndexFileNames() {
return new LinkedHashMap<String, String>(indexFileNames);
}
public boolean containsBasemap(){
public boolean containsBasemap() {
return !basemapFileNames.isEmpty();
}
@ -1171,13 +1190,13 @@ public class ResourceManager {
}
return map;
}
public synchronized void reloadTilesFromFS() {
for (TilesCache tc : tilesCacheList) {
tc.tilesOnFS.clear();
}
}
/// On low memory method ///
public void onLowMemory() {
log.info("On low memory");
@ -1186,10 +1205,10 @@ public class ResourceManager {
r.clearCache();
}
renderer.clearCache();
System.gc();
}
public GeoidAltitudeCorrection getGeoidAltitudeCorrection() {
return geoidAltitudeCorrection;
}
@ -1204,7 +1223,7 @@ public class ResourceManager {
tc.clearTiles();
}
}
public IncrementalChangesManager getChangesManager() {
return changesManager;
}

View file

@ -85,23 +85,23 @@ public class TravelObfHelper implements TravelHelper {
* 2. check settings for default?
*/
public void initTravelBooks() {
List<File> files = getPossibleFiles();
BinaryMapIndexReader[] readers = application.getResourceManager().getTravelFiles();
String travelBook = application.getSettings().SELECTED_TRAVEL_BOOK.get();
existingTravelBooks.clear();
if (files != null && !files.isEmpty()) {
for (File f : files) {
if (readers != null) {
for (BinaryMapIndexReader reader : readers) {
File f = reader.getFile();
existingTravelBooks.add(f);
if (selectedTravelBook == null) {
selectedTravelBook = f;
} else if (Algorithms.objectEquals(travelBook, f.getName())) {
selectedTravelBook = f;
}
selectedTravelBook = reader.getFile();
}
selectedTravelBook = files.get(0);
} else {
selectedTravelBook = null;
}
}
/**
@ -147,6 +147,7 @@ public class TravelObfHelper implements TravelHelper {
@NonNull
@Override
public List<WikivoyageSearchResult> search(String searchQuery) {
List<WikivoyageSearchResult> res = new ArrayList<>();
CollatorStringMatcher matcher = new CollatorStringMatcher(searchQuery,
CollatorStringMatcher.StringMatcherMode.CHECK_STARTS_FROM_SPACE);