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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkAMRDataSetCache
*
*
* A concrete implementation of vtkObject that provides functionality for
* caching AMR blocks. The primary intent of this class is to be used by the
* AMR reader infrastructure for caching blocks/data in memory to minimize
* out-of-core operations.
*/
#ifndef vtkAMRDataSetCache_h
#define vtkAMRDataSetCache_h
#include "vtkIOAMRModule.h" // For export macro
#include "vtkObject.h"
#include <map> // For STL map used as the data-structure for the cache.
VTK_ABI_NAMESPACE_BEGIN
class vtkUniformGrid;
class vtkDataArray;
class VTKIOAMR_EXPORT vtkAMRDataSetCache : public vtkObject
{
public:
static vtkAMRDataSetCache* New();
vtkTypeMacro(vtkAMRDataSetCache, vtkObject);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Inserts an AMR block to the cache
*/
void InsertAMRBlock(int compositeIdx, vtkUniformGrid* amrGrid);
/**
* Inserts a point data array to an already cached block
* NOTE: this->HasAMRBlock( compositeIdx ) == true
*/
void InsertAMRBlockPointData(int compositeIdx, vtkDataArray* dataArray);
/**
* Inserts a cell data array to an already cached block
* NOTE: this->HasAMRBlock( compositeIdx ) == true
*/
void InsertAMRBlockCellData(int compositeIdx, vtkDataArray* dataArray);
/**
* Given the name of the cell array and AMR block composite index, this
* method returns a pointer to the cell data array.
* NOTE: Null is returned if the cell array and/or block is not cached.
*/
vtkDataArray* GetAMRBlockCellData(int compositeIdx, const char* dataName);
/**
* Given the name of the point array and AMR block composite index, this
* method returns a pointer to the point data array.
* NOTE: Null is returned if the point array and /or block is not cached.
*/
vtkDataArray* GetAMRBlockPointData(int compositeIdx, const char* dataName);
/**
* Given the composite index, this method returns the AMR block.
* NOTE: Null is returned if the AMR block does not exist in the cache.
*/
vtkUniformGrid* GetAMRBlock(int compositeIdx);
/**
* Checks if the cell data array, associated with the provided name, has
* been cached for the AMR block with the given composite index.
*/
bool HasAMRBlockCellData(int compositeIdx, const char* name);
/**
* Checks if the point data array, associated with the provided name, has
* been cached for the AMR block with the given composite index.
*/
bool HasAMRBlockPointData(int compositeIdx, const char* name);
/**
* Checks if the AMR block associated with the given composite is cached.
*/
bool HasAMRBlock(int compositeIdx);
protected:
vtkAMRDataSetCache();
~vtkAMRDataSetCache() override;
typedef std::map<int, vtkUniformGrid*> AMRCacheType;
AMRCacheType Cache;
private:
vtkAMRDataSetCache(const vtkAMRDataSetCache&) = delete;
void operator=(const vtkAMRDataSetCache&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif /* vtkAMRDataSetCache_h */
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