public ByteBuffer run(Retriever retriever) { if (!retriever.getState().equals(Retriever.RETRIEVER_STATE_SUCCESSFUL)) return null; HTTPRetriever htr = (HTTPRetriever) retriever; if (htr.getResponseCode() == HttpURLConnection.HTTP_NO_CONTENT) { // Mark tile as missing to avoid excessive attempts MercatorTiledImageLayer.this.levels.markResourceAbsent(tile); return null; } if (htr.getResponseCode() != HttpURLConnection.HTTP_OK) return null; URLRetriever r = (URLRetriever) retriever; ByteBuffer buffer = r.getBuffer(); String suffix = WWIO.makeSuffixForMimeType(htr.getContentType()); if (suffix == null) { return null; // TODO: log error } String path = tile.getPath().substring(0, tile.getPath().lastIndexOf(".")); path += suffix; final File outFile = WorldWind.getDataFileStore().newFile(path); if (outFile == null) return null; try { WWIO.saveBuffer(buffer, outFile); return buffer; } catch (IOException e) { e.printStackTrace(); // TODO: log error return null; } }
public ComposeImageTile(Sector sector, String mimeType, Level level, int width, int height) throws IOException { super(sector, level, -1, -1); // row and column aren't used and need to signal that this.width = width; this.height = height; this.file = File.createTempFile(WWIO.DELETE_ON_EXIT_PREFIX, WWIO.makeSuffixForMimeType(mimeType)); }
private BufferedImage requestImage(MercatorTextureTile tile, String mimeType) throws URISyntaxException { String pathBase = tile.getPath().substring(0, tile.getPath().lastIndexOf(".")); String suffix = WWIO.makeSuffixForMimeType(mimeType); String path = pathBase + suffix; URL url = WorldWind.getDataFileStore().findFile(path, false); if (url == null) // image is not local return null; if (WWIO.isFileOutOfDate(url, tile.getLevel().getExpiryTime())) { // The file has expired. Delete it. WorldWind.getDataFileStore().removeFile(url); String message = Logging.getMessage("generic.DataFileExpired", url); Logging.logger().fine(message); } else { try { File imageFile = new File(url.toURI()); BufferedImage image = ImageIO.read(imageFile); if (image == null) { String message = Logging.getMessage("generic.ImageReadFailed", imageFile); throw new RuntimeException(message); } this.levels.unmarkResourceAbsent(tile); return image; } catch (IOException e) { // Assume that something's wrong with the file and delete it. gov.nasa.worldwind.WorldWind.getDataFileStore().removeFile(url); this.levels.markResourceAbsent(tile); String message = Logging.getMessage("generic.DeletedCorruptDataFile", url); Logging.logger().info(message); } } return null; }