private void handleEmit(ShellResponseMsg shellMsg) { List<Tuple> anchors = new ArrayList<Tuple>(); List<String> recvAnchors = shellMsg.getAnchors(); if (recvAnchors != null) { for (String anchor : recvAnchors) { Tuple t = _inputs.get(anchor); if (t == null) { throw new RuntimeException("Anchored onto " + anchor + " after ack/fail"); } anchors.add(t); } } if (shellMsg.getTask() == 0) { List<Integer> outtasks = _collector.emit(shellMsg.getStream(), anchors, shellMsg.getTuple()); if (shellMsg.areTaskIdsNeeded()) { Preconditions.checkNotNull(outtasks); _process.writeTaskIds(outtasks); } } else { _collector.emitDirect( (int) shellMsg.getTask(), shellMsg.getStream(), anchors, shellMsg.getTuple()); } }