private void buildStartCalculatingPO() {
startCalculatingPOSet.clear();
// 所有的叶子节点均需要出发计算
for (PhysicalOperator po : this.innerPlan.getLeaves()) {
startCalculatingPOSet.add(po.getAlias());
}
// 发往下一级PorcessorOperator的节点需要出发计算，有可能跟leaf有重复
Iterator<String> it = getOutputMap().keySet().iterator();
while (it.hasNext()) {
startCalculatingPOSet.add(it.next());
}
// 直接发往下一级bolt的节点（可能是非叶子节点）需要被触发计算
if (boltLevalOutputOperatorSet != null && boltLevalOutputOperatorSet.size() > 0) {
Iterator<PhysicalOperator> ito = this.innerPlan.iterator();
String a = null;
while (ito.hasNext()) {
a = ito.next().getAlias();
if (boltLevalOutputOperatorSet.contains(a)) {
startCalculatingPOSet.add(a);
}
}
}
}
// 有数据输入的root节点赋以相应的值，没有数据输入的节点置为空
private void attachRoot(Map<String, Set<String>> map, String fromAlias, DataBag bag) {
if (isTap) {
roots.get(0).attachInputBag(bag);
return;
}
Iterator<PhysicalOperator> ito = roots.iterator();
PhysicalOperator root = null;
while (ito.hasNext()) {
root = ito.next();
if (map.get(fromAlias).contains(root.getAlias())) {
root.attachInputBag(fromAlias, bag);
} else {
root.attachInputBag((DataBag[]) null);
}
}
}