content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.job.plan.transform;
  
  /**
   * Supported formats.
   */
  public enum Format {
    CSV(".csv"),
    GZIP_CSV(".csv.gz"),
    GZIP(".gz"),
    ORC(".orc"),
    PARQUET(".parquet");
  
    private String mSuffix;
  
    /**
     * @param suffix the suffix of the format
     */
    Format(String suffix) {
      mSuffix = suffix;
    }
  
    /**
     * @return the suffix of filename for the format
     */
    public String getSuffix() {
      return mSuffix;
    }
  
    /**
     * @param path the file path
     * @return whether the path points to a (compressed) CSV file
     */
    public static boolean isCsv(String path) {
      return path.endsWith(CSV.getSuffix()) || path.endsWith(GZIP_CSV.getSuffix());
    }
  
    /**
     * @param path the file path
     * @return whether the path points to a parquet file
     */
    public static boolean isParquet(String path) {
      return path.endsWith(PARQUET.getSuffix());
    }
  
    /**
     * @param path the file path
     * @return whether the path points to a gzipped file
     */
    public static boolean isGzipped(String path) {
      return path.endsWith(GZIP.getSuffix());
    }
  
    /**
     * @param path the file path
     * @return the format of the file
     */
    public static Format of(String path) {
      if (path.endsWith(CSV.getSuffix())) {
        return CSV;
      }
      if (path.endsWith(GZIP_CSV.getSuffix())) {
        return GZIP_CSV;
      }
      if (path.endsWith(PARQUET.getSuffix())) {
        return PARQUET;
      }
      throw new RuntimeException("Unsupported file format for " + path);
    }
  }
  