/**
* @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);
}
}
