/**
* A utility method for {@link RoutingRuntime RoutingRuntime} users. Confirm whether the target is
* alive or not by sending a PING message.
*/
public boolean ping(MessageSender sender, IDAddressPair target) throws IOException {
Message ret = sender.sendAndReceive(target.getAddress(), new PingMessage());
if (!(ret instanceof AckMessage)) {
logger.log(Level.WARNING, "Received message should be ACK, but it is: " + ret.getName());
return false;
}
this.algorithm.touch(target);
return true;
}
