/**
* Closes the access to all currently opened resources such as file input streams and all
* resources of this children directly owned by this reader. Its primary use is to allow the
* garbage collector to perform a vanilla job.
*
* <p>This method should be called only if it is for sure that this object instance will never be
* used again. The results of referencing an instance of this class after a call to <code>close()
* </code> are undefined.
*
* <p>Overrides of this method should always call <code>super.close();</code> after disposing this
* instance.
*
* @throws IOException if an I/O error occurs
*/
@Override
public void close() throws IOException {
if (bandInputStreams == null) {
return;
}
for (ImageInputStream imageInputStream : bandInputStreams.values()) {
(imageInputStream).close();
}
bandInputStreams.clear();
bandInputStreams = null;
if (readerExtenders != null) {
readerExtenders.clear();
readerExtenders = null;
}
super.close();
}
@Override
public synchronized void close() throws IOException {
super.close();
inputStream.close();
}