private void downloadImage(final MercatorTextureTile tile, String mimeType) throws Exception {
// System.out.println(tile.getPath());
final URL resourceURL = tile.getResourceURL(mimeType);
Retriever retriever;
String protocol = resourceURL.getProtocol();
if ("http".equalsIgnoreCase(protocol)) {
retriever = new HTTPRetriever(resourceURL, new HttpRetrievalPostProcessor(tile));
} else {
String message =
Logging.getMessage("layers.TextureLayer.UnknownRetrievalProtocol", resourceURL);
throw new RuntimeException(message);
}
retriever.setConnectTimeout(10000);
retriever.setReadTimeout(20000);
retriever.call();
}
/**
* Create a new <code>ColladaRoot</code> for a {@link URL}.
*
* @param docSource the URL of the document.
* @throws IllegalArgumentException if the document source is null.
* @throws IOException if an error occurs while reading the Collada document.
*/
public ColladaRoot(URL docSource) throws IOException {
super(ColladaConstants.COLLADA_NAMESPACE);
if (docSource == null) {
String message = Logging.getMessage("nullValue.DocumentSourceIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
URLConnection conn = docSource.openConnection();
this.colladaDoc = new ColladaInputStream(conn.getInputStream(), WWIO.makeURI(docSource));
this.initialize();
}
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;
}
/**
* Open and parse the specified file expressed as a file: URL..
*
* @param url the URL of the file to open, expressed as a URL with a scheme of "file".
* @param linkBase the original address of the document if the file is a retrieved and cached
* file.
* @return A {@code ColladaRoot} representing the file's COLLADA contents.
* @throws IOException if an I/O error occurs during opening and parsing.
* @throws XMLStreamException if a server parsing error is encountered.
*/
protected ColladaRoot parseCachedColladaFile(URL url, String linkBase)
throws IOException, XMLStreamException {
ColladaDoc colladaDoc;
InputStream refStream = url.openStream();
colladaDoc = new ColladaInputStream(refStream, WWIO.makeURI(linkBase));
try {
ColladaRoot refRoot = new ColladaRoot(colladaDoc);
refRoot.parse(); // also closes the URL's stream
return refRoot;
} catch (XMLStreamException e) {
refStream.close(); // parsing failed, so explicitly close the stream
throw e;
}
}