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[HUDI-8215] Support composite compaction strategy (apache#11963)
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.../main/java/org/apache/hudi/table/action/compact/strategy/CompositeCompactionStrategy.java
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.hudi.table.action.compact.strategy; | ||
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| import org.apache.hudi.avro.model.HoodieCompactionOperation; | ||
| import org.apache.hudi.avro.model.HoodieCompactionPlan; | ||
| import org.apache.hudi.config.HoodieWriteConfig; | ||
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| import java.util.List; | ||
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| /** | ||
| * CompositeCompactionStrategy chains multiple compaction strategies together. | ||
| * Multiple strategies perform like a pipeline with `and` condition instead of `or`. | ||
| * The order of the strategies in the chain is important as the output of one strategy is passed as input to the next. | ||
| */ | ||
| public class CompositeCompactionStrategy extends CompactionStrategy { | ||
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| private List<CompactionStrategy> strategies; | ||
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| public CompositeCompactionStrategy(List<CompactionStrategy> strategies) { | ||
| this.strategies = strategies; | ||
| } | ||
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| @Override | ||
| public List<HoodieCompactionOperation> orderAndFilter(HoodieWriteConfig writeConfig, List<HoodieCompactionOperation> operations, List<HoodieCompactionPlan> pendingCompactionPlans) { | ||
| List<HoodieCompactionOperation> finalOperations = operations; | ||
| for (CompactionStrategy strategy : strategies) { | ||
| finalOperations = strategy.orderAndFilter(writeConfig, finalOperations, pendingCompactionPlans); | ||
| } | ||
| return finalOperations; | ||
| } | ||
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| @Override | ||
| public List<String> filterPartitionPaths(HoodieWriteConfig writeConfig, List<String> allPartitionPaths) { | ||
| List<String> finalPartitionPaths = allPartitionPaths; | ||
| for (CompactionStrategy strategy : strategies) { | ||
| finalPartitionPaths = strategy.filterPartitionPaths(writeConfig, finalPartitionPaths); | ||
| } | ||
| return finalPartitionPaths; | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| StringBuilder builder = new StringBuilder(); | ||
| builder.append("CompactionStrategyChain ["); | ||
| for (CompactionStrategy strategy : strategies) { | ||
| builder.append(strategy.getClass()); | ||
| builder.append(" ===> "); | ||
| } | ||
| builder.append("]"); | ||
| return builder.toString(); | ||
| } | ||
| } |
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