#include <vtkTestReader.h>

#include <vtkDataObject.h>
#include <vtkInformation.h>
#include <vtkInformationVector.h>
#include <vtkNew.h>
#include <vtkObjectFactory.h>
#include <vtkStreamingDemandDrivenPipeline.h>

vtkStandardNewMacro(vtkTestReader);

vtkTestReader::vtkTestReader()
{
  this->FileName = NULL;
  this->SetNumberOfInputPorts(0);
  this->SetNumberOfOutputPorts(1);
}

vtkTestReader::~vtkTestReader()
{
}

// This override is not needed as the FillOutputPortInformation on
// vtkPolyDataAlgorithm does this.  Override this if you need something
// different from one output that is a vtkPolyData
int vtkTestReader::FillOutputPortInformation(int port, vtkInformation* info)
{
  if (port == 0)
  {
    info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkPolyData");

    return 1;
  }

  return 0;
}

int vtkTestReader::RequestData(vtkInformation* vtkNotUsed(request),
                               vtkInformationVector** vtkNotUsed(inputVector),
                               vtkInformationVector* outputVector)
{

  // Get the output
  vtkPolyData* output = vtkPolyData::GetData(outputVector, 0)

      vtkNew<vtkPolyData>
          polydata;
  vtkNew<vtkPoints> points;
  points->InsertNextPoint(0.0, 0.0, 0.0);
  polydata->SetPoints(points.GetPointer());

  // output = polydata.GetPointer(); //doesn't work
  output->ShallowCopy(polydata.GetPointer());

  return 1;
}

//----------------------------------------------------------------------------
void vtkTestReader::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os, indent);

  os << indent << "File Name: " << (this->FileName ? this->FileName : "(none)")
     << "\n";
}
