/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkXMLPUnstructuredDataWriter.cxx,v $

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm 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 "vtkXMLPUnstructuredDataWriter.h"

#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkErrorCode.h"
#include "vtkPointSet.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkXMLUnstructuredDataWriter.h"

vtkCxxRevisionMacro(vtkXMLPUnstructuredDataWriter, "$Revision: 1.8 $");

//----------------------------------------------------------------------------
vtkXMLPUnstructuredDataWriter::vtkXMLPUnstructuredDataWriter()
{
}

//----------------------------------------------------------------------------
vtkXMLPUnstructuredDataWriter::~vtkXMLPUnstructuredDataWriter()
{
}

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

//----------------------------------------------------------------------------
vtkPointSet* vtkXMLPUnstructuredDataWriter::GetInputAsPointSet()
{
  return static_cast<vtkPointSet*>(this->GetInput());
}

//----------------------------------------------------------------------------
int vtkXMLPUnstructuredDataWriter::ProcessRequest(
  vtkInformation* request,
  vtkInformationVector** inputVector,
  vtkInformationVector* outputVector)
{
  if(request->Has(vtkStreamingDemandDrivenPipeline::REQUEST_UPDATE_EXTENT()))
    {
    vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
    inInfo->Set(
      vtkStreamingDemandDrivenPipeline::UPDATE_NUMBER_OF_PIECES(), 
      this->NumberOfPieces);
    inInfo->Set(
      vtkStreamingDemandDrivenPipeline::UPDATE_PIECE_NUMBER(), this->StartPiece);
    inInfo->Set(
      vtkStreamingDemandDrivenPipeline::UPDATE_NUMBER_OF_GHOST_LEVELS(), 
      this->GhostLevel);
    return 1;
    }
  return this->Superclass::ProcessRequest(request, inputVector, outputVector);
}

//----------------------------------------------------------------------------
vtkXMLWriter* vtkXMLPUnstructuredDataWriter::CreatePieceWriter(int index)
{
  vtkXMLUnstructuredDataWriter* pWriter = this->CreateUnstructuredPieceWriter();
  pWriter->SetNumberOfPieces(this->NumberOfPieces);
  pWriter->SetWritePiece(index);
  pWriter->SetGhostLevel(this->GhostLevel);
  
  return pWriter;
}

//----------------------------------------------------------------------------
void vtkXMLPUnstructuredDataWriter::WritePData(vtkIndent indent)
{
  this->Superclass::WritePData(indent);
  if (this->ErrorCode == vtkErrorCode::OutOfDiskSpaceError)
    {
    return;
    }
  vtkPointSet* input = this->GetInputAsPointSet();  
  this->WritePPoints(input->GetPoints(), indent);
}