/**
* @param url the "file:" URL of the file to remove from the file store. Only files in the
* writable World Wind disk cache or temp file directory are removed by this method.
* @throws IllegalArgumentException if <code>url</code> is null
*/
@SuppressWarnings({"ResultOfMethodCallIgnored"})
public void removeFile(java.net.URL url) {
if (url == null) {
String msg = Logging.getMessage("nullValue.URLIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
try {
java.io.File file = new java.io.File(url.toURI());
// This block of code must be synchronized for proper operation. A thread may check that the
// file exists,
// and become immediately suspended. A second thread may then delete that file. When the first
// thread
// wakes up, file.delete() fails.
synchronized (this.fileLock) {
if (file.exists()) {
// Don't remove files outside the cache or temp directory.
String parent = file.getParent();
if (!(parent.startsWith(this.getWriteLocation().getPath())
|| parent.startsWith(Configuration.getSystemTempDirectory()))) return;
file.delete();
}
}
} catch (java.net.URISyntaxException e) {
Logging.logger()
.log(
Level.SEVERE,
Logging.getMessage("FileStore.ExceptionRemovingFile", url.toString()),
e);
}
}
protected void downloadTile(final Tile tile, DownloadPostProcessor postProcessor) {
if (!this.isNetworkRetrievalEnabled()) return;
if (!WorldWind.getRetrievalService().isAvailable()) return;
java.net.URL url;
try {
url = tile.getRequestURL();
if (WorldWind.getNetworkStatus().isHostUnavailable(url)) return;
} catch (java.net.MalformedURLException e) {
Logging.logger()
.log(
java.util.logging.Level.SEVERE,
Logging.getMessage("layers.PlaceNameLayer.ExceptionCreatingUrl", tile),
e);
return;
}
Retriever retriever;
if ("http".equalsIgnoreCase(url.getProtocol()) || "https".equalsIgnoreCase(url.getProtocol())) {
if (postProcessor == null) postProcessor = new DownloadPostProcessor(this, tile);
retriever = new HTTPRetriever(url, postProcessor);
} else {
Logging.logger()
.severe(
Logging.getMessage("layers.PlaceNameLayer.UnknownRetrievalProtocol", url.toString()));
return;
}
// Apply any overridden timeouts.
Integer cto = AVListImpl.getIntegerValue(this, AVKey.URL_CONNECT_TIMEOUT);
if (cto != null && cto > 0) retriever.setConnectTimeout(cto);
Integer cro = AVListImpl.getIntegerValue(this, AVKey.URL_READ_TIMEOUT);
if (cro != null && cro > 0) retriever.setReadTimeout(cro);
Integer srl = AVListImpl.getIntegerValue(this, AVKey.RETRIEVAL_QUEUE_STALE_REQUEST_LIMIT);
if (srl != null && srl > 0) retriever.setStaleRequestLimit(srl);
WorldWind.getRetrievalService().runRetriever(retriever, tile.getPriority());
}
protected static PlaceNameChunk readTileData(Tile tile, java.net.URL url) {
java.io.InputStream is = null;
try {
String path = url.getFile();
path =
path.replaceAll(
"%20", " "); // TODO: find a better way to get a path usable by FileInputStream
java.io.FileInputStream fis = new java.io.FileInputStream(path);
java.io.BufferedInputStream buf = new java.io.BufferedInputStream(fis);
is = new java.util.zip.GZIPInputStream(buf);
GMLPlaceNameSAXHandler handler = new GMLPlaceNameSAXHandler();
javax.xml.parsers.SAXParserFactory.newInstance().newSAXParser().parse(is, handler);
return handler.createPlaceNameChunk(tile.getPlaceNameService());
} catch (Exception e) {
// todo log actual error
Logging.logger()
.log(
Level.FINE,
Logging.getMessage(
"layers.PlaceNameLayer.ExceptionAttemptingToReadFile", url.toString()),
e);
} finally {
try {
if (is != null) is.close();
} catch (java.io.IOException e) {
Logging.logger()
.log(
Level.FINE,
Logging.getMessage(
"layers.PlaceNameLayer.ExceptionAttemptingToReadFile", url.toString()),
e);
}
}
return null;
}
