| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.iceberg.spark.extensions; |
| |
| import static scala.collection.JavaConverters.seqAsJavaListConverter; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.function.Predicate; |
| import java.util.stream.Collectors; |
| import org.apache.iceberg.relocated.com.google.common.collect.Lists; |
| import org.apache.spark.sql.catalyst.expressions.Expression; |
| import org.apache.spark.sql.execution.CommandResultExec; |
| import org.apache.spark.sql.execution.SparkPlan; |
| import org.apache.spark.sql.execution.adaptive.AdaptiveSparkPlanHelper; |
| import org.apache.spark.sql.execution.datasources.v2.BatchScanExec; |
| import scala.PartialFunction; |
| import scala.collection.Seq; |
| |
| public class SparkPlanUtil { |
| |
| private static final AdaptiveSparkPlanHelper SPARK_HELPER = new AdaptiveSparkPlanHelper() {}; |
| |
| private SparkPlanUtil() {} |
| |
| public static List<SparkPlan> collectLeaves(SparkPlan plan) { |
| return toJavaList(SPARK_HELPER.collectLeaves(actualPlan(plan))); |
| } |
| |
| public static List<SparkPlan> collectBatchScans(SparkPlan plan) { |
| List<SparkPlan> leaves = collectLeaves(plan); |
| return leaves.stream() |
| .filter(scan -> scan instanceof BatchScanExec) |
| .collect(Collectors.toList()); |
| } |
| |
| private static SparkPlan actualPlan(SparkPlan plan) { |
| if (plan instanceof CommandResultExec) { |
| return ((CommandResultExec) plan).commandPhysicalPlan(); |
| } else { |
| return plan; |
| } |
| } |
| |
| public static List<Expression> collectExprs( |
| SparkPlan sparkPlan, Predicate<Expression> predicate) { |
| Seq<List<Expression>> seq = |
| SPARK_HELPER.collect( |
| sparkPlan, |
| new PartialFunction<SparkPlan, List<Expression>>() { |
| @Override |
| public List<Expression> apply(SparkPlan plan) { |
| List<Expression> exprs = Lists.newArrayList(); |
| |
| for (Expression expr : toJavaList(plan.expressions())) { |
| exprs.addAll(collectExprs(expr, predicate)); |
| } |
| |
| return exprs; |
| } |
| |
| @Override |
| public boolean isDefinedAt(SparkPlan plan) { |
| return true; |
| } |
| }); |
| return toJavaList(seq).stream().flatMap(Collection::stream).collect(Collectors.toList()); |
| } |
| |
| private static List<Expression> collectExprs( |
| Expression expression, Predicate<Expression> predicate) { |
| Seq<Expression> seq = |
| expression.collect( |
| new PartialFunction<Expression, Expression>() { |
| @Override |
| public Expression apply(Expression expr) { |
| return expr; |
| } |
| |
| @Override |
| public boolean isDefinedAt(Expression expr) { |
| return predicate.test(expr); |
| } |
| }); |
| return toJavaList(seq); |
| } |
| |
| private static <T> List<T> toJavaList(Seq<T> seq) { |
| return seqAsJavaListConverter(seq).asJava(); |
| } |
| } |