/**
* Sends a message.
*
* <p>Current thread is NOT blocked by this method call. But no two response-actions (onReceive or
* onFail on any request) or response protocols will be executed at same time, so you can write
* not thread-safe code inside them.
*
* <p>
*
* <p>This gets being very similar to automaton programming :)
*
* @param address receiver of message
* @param message mail entry
* @param type way of sending a message: TCP, single UPD...
* @param timeout timeout in milliseconds
* @param receiveListener an action to invoke when got an answer.
* @param failListener an action to invoke when timeout exceeded.
* @param <ReplyType> response message type
*/
public <ReplyType extends ResponseMessage> void send(
InetSocketAddress address,
RequestMessage<ReplyType> message,
DispatchType type,
int timeout,
ReceiveListener<ReplyType> receiveListener,
FailListener failListener) {
BlockingQueue<ResponseMessage> responseContainer = submit(address, message, type);
// TODO: make in single thread
scheduledExecutor.schedule(
() -> {
//noinspection unchecked
ReplyType response = (ReplyType) responseContainer.poll();
if (response != null) receiveListener.onReceive(address, response);
else failListener.onFail(address);
},
timeout,
TimeUnit.MILLISECONDS);
// TODO: clear responseWaiters map
}
@Override
public void close() throws IOException {
executor.shutdownNow();
scheduledExecutor.shutdownNow();
}
/**
* Sends message to itself in specified delay.
*
* <p>Used to schedule some tasks and execute them sequentially with other response-actions.
* Executed action must be specified as response protocol.
*
* @param message reminder message
* @param delay when to send a mention
*/
public void remind(ReminderMessage message, int delay) {
Runnable remind =
() -> send(null, message, DispatchType.LOOPBACK, 10000, (addr, response) -> {}, addr -> {});
scheduledExecutor.schedule(remind, delay, TimeUnit.MILLISECONDS);
}