public AckSpoutMsg(
ISpout _spout, TupleInfo tupleInfo, CommonStatsRolling _task_stats, boolean _isDebug) {
this.task_stats = _task_stats;
this.spout = _spout;
this.isDebug = _isDebug;
this.msgId = tupleInfo.getMessageId();
this.stream = tupleInfo.getStream();
this.timeStamp = tupleInfo.getTimestamp();
this.values = tupleInfo.getValues();
}
private List<Integer> sendSpoutMsg(
String out_stream_id, List<Object> values, Object message_id, Integer out_task_id) {
emitTotalTimer.start();
try {
java.util.List<Integer> out_tasks = null;
if (out_task_id != null) {
out_tasks = sendTargets.get(out_task_id, out_stream_id, values);
} else {
out_tasks = sendTargets.get(out_stream_id, values);
}
if (out_tasks.size() == 0) {
// don't need send tuple to other task
return out_tasks;
}
List<Long> ackSeq = new ArrayList<Long>();
Boolean needAck = (message_id != null) && (ackerNum > 0);
// This change storm logic
// Storm can't make sure root_id is unique
// storm's logic is root_id = MessageId.generateId(random);
// when duplicate root_id, it will miss call ack/fail
Long root_id = MessageId.generateId(random);
if (needAck) {
while (pending.containsKey(root_id) == true) {
root_id = MessageId.generateId(random);
}
}
for (Integer t : out_tasks) {
MessageId msgid;
if (needAck) {
// Long as = MessageId.generateId();
Long as = MessageId.generateId(random);
msgid = MessageId.makeRootId(root_id, as);
ackSeq.add(as);
} else {
msgid = MessageId.makeUnanchored();
}
TupleImplExt tp = new TupleImplExt(topology_context, values, task_id, out_stream_id, msgid);
tp.setTargetTaskId(t);
transfer_fn.transfer(tp);
}
if (needAck) {
TupleInfo info = new TupleInfo();
info.setStream(out_stream_id);
info.setValues(values);
info.setMessageId(message_id);
info.setTimestamp(System.currentTimeMillis());
pending.putHead(root_id, info);
List<Object> ackerTuple =
JStormUtils.mk_list((Object) root_id, JStormUtils.bit_xor_vals(ackSeq), task_id);
UnanchoredSend.send(
topology_context, sendTargets, transfer_fn, Acker.ACKER_INIT_STREAM_ID, ackerTuple);
} else if (message_id != null) {
TupleInfo info = new TupleInfo();
info.setStream(out_stream_id);
info.setValues(values);
info.setMessageId(message_id);
info.setTimestamp(0);
AckSpoutMsg ack = new AckSpoutMsg(spout, info, task_stats, isDebug);
ack.run();
}
return out_tasks;
} finally {
emitTotalTimer.stop();
}
}