protected boolean loadTile(Tile tile, java.net.URL url) { if (WWIO.isFileOutOfDate(url, this.placeNameServiceSet.getExpiryTime())) { // The file has expired. Delete it then request download of newer. this.getDataFileStore().removeFile(url); String message = Logging.getMessage("generic.DataFileExpired", url); Logging.logger().fine(message); return false; } PlaceNameChunk tileData; synchronized (this.fileLock) { tileData = readTileData(tile, url); } if (tileData == null) { // Assume that something's wrong with the file and delete it. this.getDataFileStore().removeFile(url); tile.getPlaceNameService() .markResourceAbsent(tile.getPlaceNameService().getTileNumber(tile.row, tile.column)); String message = Logging.getMessage("generic.DeletedCorruptDataFile", url); Logging.logger().fine(message); return false; } tile.setDataChunk(tileData); WorldWind.getMemoryCache(Tile.class.getName()).add(tile.getFileCachePath(), tile); return true; }
public List<Tile> getTiles() { if (tileKeys.isEmpty()) { Tile[] tiles = buildTiles(this.placeNameService, this); // load tileKeys for (Tile t : tiles) { tileKeys.add(t.getFileCachePath()); WorldWind.getMemoryCache(Tile.class.getName()).add(t.getFileCachePath(), t); } return Arrays.asList(tiles); } else { List<Tile> dataTiles = new ArrayList<Tile>(); for (String s : tileKeys) { Tile t = (Tile) WorldWind.getMemoryCache(Tile.class.getName()).getObject(s); if (t != null) { dataTiles.add(t); } } return dataTiles; } }
protected boolean isTileInMemoryWithData() { Tile t = (Tile) WorldWind.getMemoryCache(Tile.class.getName()).getObject(this.getFileCachePath()); return !(t == null || t.getDataChunk() == null); }