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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright 2008 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov
#include "vtkSQLGraphReader.h"
#include "vtkAssignCoordinates.h"
#include "vtkDirectedGraph.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkRowQueryToTable.h"
#include "vtkSQLQuery.h"
#include "vtkSmartPointer.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkTable.h"
#include "vtkTableToGraph.h"
#include "vtkUndirectedGraph.h"
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkSQLGraphReader);
vtkSQLGraphReader::vtkSQLGraphReader()
{
this->Directed = 0;
this->CollapseEdges = 0;
this->SetNumberOfInputPorts(0);
this->SetNumberOfOutputPorts(1);
this->VertexQuery = nullptr;
this->EdgeQuery = nullptr;
this->SourceField = 0;
this->TargetField = 0;
this->VertexIdField = 0;
this->XField = 0;
this->YField = 0;
this->ZField = 0;
}
vtkSQLGraphReader::~vtkSQLGraphReader()
{
if (this->VertexQuery != nullptr)
{
this->VertexQuery->Delete();
}
if (this->EdgeQuery != nullptr)
{
this->EdgeQuery->Delete();
}
this->SetSourceField(0);
this->SetTargetField(0);
this->SetVertexIdField(0);
this->SetXField(0);
this->SetYField(0);
this->SetZField(0);
}
void vtkSQLGraphReader::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "Directed: " << this->Directed << endl;
os << indent << "CollapseEdges: " << this->CollapseEdges << endl;
os << indent << "XField: " << (this->XField ? this->XField : "(null)") << endl;
os << indent << "YField: " << (this->YField ? this->YField : "(null)") << endl;
os << indent << "ZField: " << (this->ZField ? this->ZField : "(null)") << endl;
os << indent << "VertexIdField: " << (this->VertexIdField ? this->VertexIdField : "(null)")
<< endl;
os << indent << "SourceField: " << (this->SourceField ? this->SourceField : "(null)") << endl;
os << indent << "TargetField: " << (this->TargetField ? this->TargetField : "(null)") << endl;
os << indent << "EdgeQuery: " << (this->EdgeQuery ? "" : "(null)") << endl;
if (this->EdgeQuery)
{
this->EdgeQuery->PrintSelf(os, indent.GetNextIndent());
}
os << indent << "VertexQuery: " << (this->VertexQuery ? "" : "(null)") << endl;
if (this->VertexQuery)
{
this->VertexQuery->PrintSelf(os, indent.GetNextIndent());
}
}
vtkCxxSetObjectMacro(vtkSQLGraphReader, VertexQuery, vtkSQLQuery);
vtkCxxSetObjectMacro(vtkSQLGraphReader, EdgeQuery, vtkSQLQuery);
int vtkSQLGraphReader::RequestData(
vtkInformation*, vtkInformationVector**, vtkInformationVector* outputVector)
{
// Check for valid inputs
if (this->EdgeQuery == nullptr)
{
vtkErrorMacro("The EdgeQuery must be defined");
return 0;
}
if (this->SourceField == nullptr)
{
vtkErrorMacro("The SourceField must be defined");
return 0;
}
if (this->TargetField == nullptr)
{
vtkErrorMacro("The TargetField must be defined");
return 0;
}
if (this->VertexQuery != nullptr)
{
if (this->VertexIdField == nullptr)
{
vtkErrorMacro("The VertexIdField must be defined when using a VertexQuery");
return 0;
}
if (this->XField != nullptr && this->YField == nullptr)
{
vtkErrorMacro("The YField must be defined if the XField is defined");
return 0;
}
}
vtkGraph* output = vtkGraph::GetData(outputVector);
vtkTableToGraph* filter = vtkTableToGraph::New();
filter->SetDirected(this->Directed);
// Set up the internal filter to use the edge table
vtkSmartPointer<vtkRowQueryToTable> edgeReader = vtkSmartPointer<vtkRowQueryToTable>::New();
edgeReader->SetQuery(this->EdgeQuery);
edgeReader->Update();
const char* domain = "default";
if (this->VertexIdField)
{
domain = this->VertexIdField;
}
filter->SetInputConnection(edgeReader->GetOutputPort());
filter->AddLinkVertex(this->SourceField, domain);
filter->AddLinkVertex(this->TargetField, domain);
filter->AddLinkEdge(this->SourceField, this->TargetField);
vtkSmartPointer<vtkAssignCoordinates> assign = vtkSmartPointer<vtkAssignCoordinates>::New();
assign->SetInputConnection(filter->GetOutputPort());
// Set up the internal filter to use the vertex table
if (this->VertexQuery != nullptr)
{
vtkSmartPointer<vtkRowQueryToTable> vertexReader = vtkSmartPointer<vtkRowQueryToTable>::New();
vertexReader->SetQuery(this->VertexQuery);
vertexReader->Update();
filter->SetInputConnection(1, vertexReader->GetOutputPort());
if (this->XField != nullptr)
{
assign->SetXCoordArrayName(this->XField);
assign->SetYCoordArrayName(this->YField);
if (this->ZField != nullptr)
{
assign->SetZCoordArrayName(this->ZField);
}
}
}
// Get the internal filter output and assign it to the output
if (this->XField != nullptr)
{
assign->Update();
vtkGraph* assignOutput = vtkGraph::SafeDownCast(assign->GetOutput());
output->ShallowCopy(assignOutput);
}
else
{
filter->Update();
vtkGraph* filterOutput = filter->GetOutput();
output->ShallowCopy(filterOutput);
}
vtkInformation* outInfo = outputVector->GetInformationObject(0);
int piece = -1;
int npieces = -1;
if (outInfo->Has(vtkStreamingDemandDrivenPipeline::UPDATE_PIECE_NUMBER()))
{
piece = outInfo->Get(vtkStreamingDemandDrivenPipeline::UPDATE_PIECE_NUMBER());
npieces = outInfo->Get(vtkStreamingDemandDrivenPipeline::UPDATE_NUMBER_OF_PIECES());
}
output->GetInformation()->Set(vtkDataObject::DATA_NUMBER_OF_PIECES(), npieces);
output->GetInformation()->Set(vtkDataObject::DATA_PIECE_NUMBER(), piece);
// Clean up
filter->Delete();
return 1;
}
int vtkSQLGraphReader::RequestDataObject(
vtkInformation*, vtkInformationVector**, vtkInformationVector*)
{
vtkDataObject* current = this->GetExecutive()->GetOutputData(0);
if (!current || (this->Directed && !vtkDirectedGraph::SafeDownCast(current)) ||
(!this->Directed && vtkDirectedGraph::SafeDownCast(current)))
{
vtkGraph* output = 0;
if (this->Directed)
{
output = vtkDirectedGraph::New();
}
else
{
output = vtkUndirectedGraph::New();
}
this->GetExecutive()->SetOutputData(0, output);
output->Delete();
}
return 1;
}
VTK_ABI_NAMESPACE_END
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