/** Closes the connection. Note: this method will block until the connection is actually closed */
@Override
public void close() {
_log.info("closing connection to: " + _server.getAddress());
final State newState = switchToClosing();
if (State.CLOSING != newState && State.CLOSED != newState) {
return;
}
if (null == _channel || !_channel.isConnected()) {
switchToClosed();
} else {
_channel.close();
awaitForCloseUninterruptibly();
}
}
