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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkCellGridIOQuery.h"
#include "vtkCellGrid.h"
#include "vtkDataArray.h"
#include "vtkDataSetAttributes.h"
#include "vtkObjectFactory.h"
#include <vtk_nlohmannjson.h> // For API.
#include VTK_NLOHMANN_JSON(json.hpp) // For API.
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkCellGridIOQuery);
void vtkCellGridIOQuery::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "Data: ";
if (this->Data)
{
os << this->Data->dump(2) << "\n";
}
else
{
os << "null\n";
}
}
void vtkCellGridIOQuery::PrepareToDeserialize(const nlohmann::json& sourceData,
const nlohmann::json& attributeData, std::vector<vtkCellAttribute*>& attributeList)
{
this->Data = const_cast<nlohmann::json*>(&sourceData);
this->AttributeData = const_cast<nlohmann::json*>(&attributeData);
this->AttributeList = &attributeList;
this->ArrayLocations.clear();
this->Serializing = false;
}
void vtkCellGridIOQuery::PrepareToSerialize(nlohmann::json& destination,
nlohmann::json& attributeData,
const std::unordered_map<vtkAbstractArray*, vtkStringToken>& arrayLocations)
{
this->Data = &destination;
this->AttributeData = &attributeData;
this->AttributeList = nullptr;
this->ArrayLocations = arrayLocations;
this->Serializing = true;
}
bool vtkCellGridIOQuery::ExtractCellTypeAttributeInfo(vtkCellGrid* grid,
vtkCellAttribute::CellTypeInfo& cellTypeInfo, const nlohmann::json& jsonInfo,
vtkStringToken cellTypeName)
{
if (!cellTypeName.IsValid())
{
return false;
}
auto it = jsonInfo.find(cellTypeName.Data());
if (it == jsonInfo.end())
{
return false;
}
vtkStringToken invalid;
// dof-sharing is not mandatory (and absent for discontinuous attributes):
cellTypeInfo.DOFSharing =
it->contains("dof-sharing") ? (*it)["dof-sharing"].get<std::string>() : invalid;
// function-space, basis, and order are mandatory
cellTypeInfo.FunctionSpace = (*it)["function-space"].get<vtkStringToken>();
cellTypeInfo.Basis = (*it)["basis"].get<vtkStringToken>();
cellTypeInfo.Order = (*it)["order"].get<int>();
if (it->contains("arrays"))
{
nlohmann::json jArrays = it->at("arrays");
for (const auto& arraySpec : jArrays.items())
{
vtkStringToken group(arraySpec.value()[0].get<std::string>());
vtkStringToken arrayName(arraySpec.value()[1].get<std::string>());
// std::cout << cellTypeName.Data() << " " << arraySpec.key() << " has " << group.Data() <<
// ", " << arrayName.Data() << "\n";
auto* arrayGroup = grid->GetAttributes(group.GetId());
if (arrayGroup)
{
auto* array = arrayGroup->GetArray(arrayName.Data().c_str());
if (array)
{
cellTypeInfo.ArraysByRole[arraySpec.key()] = array;
}
else
{
vtkWarningMacro(
"Array \"" << arrayName.Data() << "\" not present in \"" << group.Data() << "\".");
}
}
}
}
return true;
}
bool vtkCellGridIOQuery::InsertCellTypeAttributeInfo(vtkCellGrid* grid,
const vtkCellAttribute::CellTypeInfo& cellTypeInfo, nlohmann::json& jsonInfo,
vtkStringToken cellTypeName)
{
(void)grid;
bool ok = true;
nlohmann::json jCellTypeInfo;
nlohmann::json jCellBlock;
nlohmann::json arraysByRole;
for (const auto& entry : cellTypeInfo.ArraysByRole)
{
auto groupIt = this->ArrayLocations.find(entry.second);
if (groupIt == this->ArrayLocations.end())
{
ok = false;
vtkWarningMacro(
"Unmanaged array " << entry.second << " in role " << entry.first.Data() << " skipped.");
continue;
}
arraysByRole[entry.first.Data()] =
nlohmann::json::array({ groupIt->second.Data(), entry.second->GetName() });
}
jCellBlock = { { "function-space", cellTypeInfo.FunctionSpace.Data() },
{ "basis", cellTypeInfo.Basis.Data() }, { "order", cellTypeInfo.Order } };
if (!arraysByRole.empty())
{
jCellBlock["arrays"] = arraysByRole;
}
if (cellTypeInfo.DOFSharing.IsValid())
{
jCellBlock["dof-sharing"] = cellTypeInfo.DOFSharing.Data();
}
jCellTypeInfo[cellTypeName.Data()] = jCellBlock;
jsonInfo["cell-info"] = jCellTypeInfo;
return ok;
}
nlohmann::json& vtkCellGridIOQuery::AddMetadataEntry(vtkStringToken cellTypeName)
{
nlohmann::json entry;
entry["type"] = cellTypeName.Data();
this->Data->push_back(entry);
return this->Data->back();
}
VTK_ABI_NAMESPACE_END
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