com.uber.hoodie.io.compact.strategy.UnBoundedCompactionStrategy Maven / Gradle / Ivy

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/*
 *  Copyright (c) 2016 Uber Technologies, Inc. ([email protected])
 *
 *  Licensed 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 com.uber.hoodie.io.compact.strategy;

import com.google.common.collect.Maps;
import com.uber.hoodie.common.model.HoodieDataFile;
import com.uber.hoodie.common.model.HoodieLogFile;
import com.uber.hoodie.config.HoodieWriteConfig;
import com.uber.hoodie.io.compact.CompactionOperation;
import java.util.List;
import java.util.Map;

/**
 * UnBoundedCompactionStrategy will not change ordering or filter any compaction.
 * It is a pass-through and will compact all the base files which has a log file.
 * This usually means no-intelligence on compaction.
 *
 * @see CompactionStrategy
 */
public class UnBoundedCompactionStrategy implements CompactionStrategy {

  @Override
  public Map captureMetrics(HoodieDataFile dataFile, String partitionPath,
      List logFiles) {
    return Maps.newHashMap();
  }

  @Override
  public List orderAndFilter(HoodieWriteConfig config,
      List operations) {
    return operations;
  }
}