be/src/exec/tuple-text-file-util.h

// Licensed to the Apache Software Foundation (ASF) under one
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// to you under the Apache License, Version 2.0 (the
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// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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#pragma once

#include "common/status.h"

namespace impala {

/// Utility class for verifying the tuple text files.
class TupleTextFileUtil {
 public:
  /// Verify whether two debug dump caches are the same.
  /// If the files are with different sizes or not able to open the files, will return
  /// an error status to stop the query.
  /// If the files content are different, return status Ok but set the passed as false
  /// to allow further comparison.
  /// If files are the same or there is no need for a comparison, like verification is
  /// off or cache doesn't exist, return status Ok and set the passed as true.
  static Status VerifyDebugDumpCache(
      const std::string& file_name, const std::string& ref_file_name, bool* passed);

  /// Slow path to varify the debug dump caches row by row.
  static Status VerifyRows(const string& cmp_file_path, const string& ref_file_path);
};
} // namespace impala