DistributedPlan.java

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package org.apache.doris.nereids.trees.plans.distribute;

import org.apache.doris.nereids.trees.AbstractTreeNode;
import org.apache.doris.nereids.trees.plans.distribute.worker.job.UnassignedJob;
import org.apache.doris.planner.ExchangeNode;

import com.google.common.collect.SetMultimap;

import java.util.List;
import java.util.Objects;

/** DistributedPlan */
@lombok.Getter
public abstract class DistributedPlan extends AbstractTreeNode<DistributedPlan> {
    protected final UnassignedJob fragmentJob;
    protected final SetMultimap<ExchangeNode, DistributedPlan> inputs;

    public DistributedPlan(UnassignedJob fragmentJob, SetMultimap<ExchangeNode, DistributedPlan> inputs) {
        this.fragmentJob = Objects.requireNonNull(fragmentJob, "fragmentJob can not be null");
        this.inputs = Objects.requireNonNull(inputs, "inputs can not be null");
    }

    public UnassignedJob getFragmentJob() {
        return fragmentJob;
    }

    public SetMultimap<ExchangeNode, DistributedPlan> getInputs() {
        return inputs;
    }

    @Override
    public DistributedPlan withChildren(List<DistributedPlan> children) {
        throw new UnsupportedOperationException();
    }

    public abstract String toString(int displayFragmentId);

    /** toString */
    public static String toString(List<DistributedPlan> distributedPlansBottomToTop) {
        StringBuilder distributedPlanStringBuilder = new StringBuilder();
        int fragmentDisplayId = 0;
        for (int i = distributedPlansBottomToTop.size() - 1; i >= 0; i--) {
            DistributedPlan distributedPlan = distributedPlansBottomToTop.get(i);
            distributedPlanStringBuilder
                    .append(distributedPlan.toString(fragmentDisplayId++))
                    .append("\n");
        }
        return distributedPlanStringBuilder.toString();
    }
}