@Override
public void send(final T myData) throws NetworkException, InterruptedException {
LOG.entering("GatherSender", "send", myData);
// I am an intermediate node or a leaf.
LOG.fine("I am " + this);
if (init.compareAndSet(false, true)) {
LOG.fine(this + " Communication group initializing.");
commGroupClient.initialize();
LOG.fine(this + " Communication group initialized.");
}
try {
LOG.finest(this + " Waiting for children.");
final byte[] gatheredData = topology.recvFromChildren();
final byte[] encodedMyData = dataCodec.encode(myData);
try (final ByteArrayOutputStream bstream = new ByteArrayOutputStream();
final DataOutputStream dstream = new DataOutputStream(bstream)) {
dstream.writeUTF(netService.getMyId().toString());
dstream.writeInt(encodedMyData.length);
dstream.write(encodedMyData);
dstream.write(gatheredData);
final byte[] mergedData = bstream.toByteArray();
LOG.fine(this + " Sending merged value to parent.");
topology.sendToParent(mergedData, ReefNetworkGroupCommProtos.GroupCommMessage.Type.Gather);
}
} catch (final ParentDeadException e) {
throw new RuntimeException("ParentDeadException", e);
} catch (final IOException e) {
throw new RuntimeException("IOException", e);
}
LOG.exiting("GatherSender", "send");
}
@Override
public void initialize() throws ParentDeadException {
topology.initialize();
}
@Override
public void onNext(final GroupCommunicationMessage msg) {
topology.handle(msg);
}