fe/src/main/java/org/apache/impala/util/HudiUtil.java

// Licensed to the Apache Software Foundation (ASF) under one
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// 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,
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package org.apache.impala.util;

import org.apache.hadoop.fs.FileStatus;
import org.apache.hudi.exception.HoodieException;
import org.apache.hudi.hadoop.HoodieROTablePathFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.List;

public class HudiUtil {
  private final static Logger LOG = LoggerFactory.getLogger(HudiUtil.class);

  /**
   * This method will remove invalid FileStatus from the list based on Hudi's timestamp,
   * and return a list of file status contains only the latest version parquet files.
   * e.g. Input: [ABC_20200101.parquet, ABC_20200102.parquet, DEF_20200101.parquet]
   * Return: [ABC_20200102.parquet, DEF_20200101.parquet]
   */
  public static List<FileStatus> filterFilesForHudiROPath(List<FileStatus> stats) {
    List<FileStatus> validStats = new ArrayList<>(stats);
    HoodieROTablePathFilter hudiFilter = new HoodieROTablePathFilter();
    validStats.removeIf(f -> {
      try {
        // Ozone can throw an exception if it considers the path invalid. Since we're
        // searching for a valid path, log the exception and continue.
        return !hudiFilter.accept(f.getPath());
      } catch (HoodieException e) {
        LOG.debug("Unable to check Hudi path {}", f.getPath(), e);
        return false;
      }
    });
    return validStats;
  }
}