/**
* Cleans up the contents of the selector, closing any server socket channels that might be
* associated with it. Any connections that might have been established through those channels
* should not be impacted.
*/
private void cleanUpSelector() {
try {
for (SelectionKey key : selector.keys()) {
try {
key.cancel();
} catch (Exception e) {
logger.traceException(e);
}
try {
key.channel().close();
} catch (Exception e) {
logger.traceException(e);
}
}
} catch (Exception e) {
logger.traceException(e);
}
}
static void releaseTemporarySelector(Selector sel) throws IOException {
// Selector should be empty
sel.selectNow(); // Flush cancelled keys
assert sel.keys().isEmpty() : "Temporary selector not empty";
localSelectorWrapper.set(null);
}