parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetFileReader.java
public static ParquetFileReader open(InputFile file) throws IOException {
    return new ParquetFileReader(file, ParquetReadOptions.builder().build());
  }
public static ParquetFileReader open(InputFile file) throws IOException {
    return new ParquetFileReader(file, ParquetReadOptions.builder().build());
  }
Open a {@link InputFile file}.

@param file an input file
@return an open ParquetFileReader
@throws IOException if there is an error while opening the file