vtkParallelSerialWriter.h

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/*=========================================================================

  Program:   ParaView
  Module:    vtkParallelSerialWriter.h

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkParallelSerialWriter_h
#define vtkParallelSerialWriter_h

#include "vtkDataObjectAlgorithm.h"
#include "vtkPVVTKExtensionsIOCoreModule.h" //needed for exports
#include "vtkSmartPointer.h"                // needed for vtkSmartPointer
#include <string>                           // for std::string

class vtkClientServerInterpreter;
class vtkMultiProcessController;

class VTKPVVTKEXTENSIONSIOCORE_EXPORT vtkParallelSerialWriter : public vtkDataObjectAlgorithm
{
public:
  static vtkParallelSerialWriter* New();
  vtkTypeMacro(vtkParallelSerialWriter, vtkDataObjectAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  void SetWriter(vtkAlgorithm*);
  vtkGetObjectMacro(Writer, vtkAlgorithm);

  vtkMTimeType GetMTime() override;


  vtkSetStringMacro(FileNameMethod);
  vtkGetStringMacro(FileNameMethod);


  vtkSetStringMacro(FileName);
  vtkGetStringMacro(FileName);

  int Write();


  vtkGetMacro(Piece, int);
  vtkSetMacro(Piece, int);


  vtkGetMacro(NumberOfPieces, int);
  vtkSetMacro(NumberOfPieces, int);


  vtkGetMacro(GhostLevel, int);
  vtkSetMacro(GhostLevel, int);


  void SetPreGatherHelper(vtkAlgorithm*);
  vtkGetObjectMacro(PreGatherHelper, vtkAlgorithm);


  void SetPostGatherHelper(vtkAlgorithm*);
  vtkGetObjectMacro(PostGatherHelper, vtkAlgorithm);


  vtkGetMacro(WriteAllTimeSteps, int);
  vtkSetMacro(WriteAllTimeSteps, int);
  vtkBooleanMacro(WriteAllTimeSteps, int);

  void SetInterpreter(vtkClientServerInterpreter* interp) { this->Interpreter = interp; }


  vtkGetStringMacro(FileNameSuffix);
  vtkSetStringMacro(FileNameSuffix);


  vtkSetClampMacro(NumberOfIORanks, int, 0, VTK_INT_MAX);
  vtkGetMacro(NumberOfIORanks, int);

  enum
  {
    ASSIGNMENT_MODE_CONTIGUOUS,
    ASSIGNMENT_MODE_ROUND_ROBIN
  };


  vtkSetClampMacro(
    RankAssignmentMode, int, ASSIGNMENT_MODE_CONTIGUOUS, ASSIGNMENT_MODE_ROUND_ROBIN);
  vtkGetMacro(RankAssignmentMode, int);


  void SetController(vtkMultiProcessController* controller);
  vtkGetObjectMacro(Controller, vtkMultiProcessController);

protected:
  vtkParallelSerialWriter();
  ~vtkParallelSerialWriter() override;

  int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
  int RequestUpdateExtent(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
  int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;

private:
  vtkParallelSerialWriter(const vtkParallelSerialWriter&) = delete;
  void operator=(const vtkParallelSerialWriter&) = delete;

  void WriteATimestep(vtkDataObject* input);
  void WriteAFile(const std::string& fname, vtkDataObject* input);

  void SetWriterFileName(const char* fname);
  void WriteInternal();

  std::string GetPartitionFileName(const std::string& fname);

  vtkAlgorithm* PreGatherHelper;
  vtkAlgorithm* PostGatherHelper;

  vtkAlgorithm* Writer;
  char* FileNameMethod;
  int Piece;
  int NumberOfPieces;
  int GhostLevel;

  int WriteAllTimeSteps;
  int NumberOfTimeSteps;
  int CurrentTimeIndex;

  // The name of the output file.
  char* FileName;
  char* FileNameSuffix;

  vtkClientServerInterpreter* Interpreter;

  int NumberOfIORanks;
  int RankAssignmentMode;

  vtkMultiProcessController* Controller;
  vtkSmartPointer<vtkMultiProcessController> SubController;
  int SubControllerColor;
};

#endif