//=========================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt 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.
//=========================================================================

#include "vtkCMBModelReader.h"

#include "vtkCMBParserBase.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPolyData.h"
#include "vtkSmartPointer.h"
#include "vtkXMLPolyDataReader.h"
#include <sys/stat.h>

vtkStandardNewMacro(vtkCMBModelReader);

vtkCMBModelReader::vtkCMBModelReader()
{
  this->FileName = 0;
  this->SetNumberOfInputPorts(0);
}

vtkCMBModelReader::~vtkCMBModelReader()
{
  this->SetFileName(0);
}

int vtkCMBModelReader::RequestData(vtkInformation* vtkNotUsed(request),
  vtkInformationVector** vtkNotUsed(inputVector), vtkInformationVector* outputVector)
{
  vtkDebugMacro("Reading a CMB file.");
  // get the info object
  vtkInformation* outInfo = outputVector->GetInformationObject(0);

  // get the ouptut
  vtkPolyData* output = vtkPolyData::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));

  struct stat fs;
  if (stat(this->FileName, &fs))
  {
    vtkErrorMacro(<< this->FileName << " not found");
    return 0;
  }

  vtkSmartPointer<vtkXMLPolyDataReader> reader = vtkSmartPointer<vtkXMLPolyDataReader>::New();
  reader->SetFileName(this->GetFileName());
  reader->Update();

  output->ShallowCopy(reader->GetOutput());

  return 1;
}

int vtkCMBModelReader::RequestInformation(vtkInformation* vtkNotUsed(request),
  vtkInformationVector** vtkNotUsed(inputVector), vtkInformationVector* vtkNotUsed(outputVector))
{
  if (!this->FileName)
  {
    vtkErrorMacro("FileName has to be specified!");
    return 0;
  }

  return 1;
}

void vtkCMBModelReader::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os, indent);
  os << indent << "FileName: " << this->FileName << endl;
}
