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/*=========================================================================
Program: ParaView
Module: vtkPVSILInformation.cxx
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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 "vtkPVSILInformation.h"
#include "vtkAlgorithm.h"
#include "vtkAlgorithmOutput.h"
#include "vtkClientServerStream.h"
#include "vtkExecutive.h"
#include "vtkGraph.h"
#include "vtkGraphReader.h"
#include "vtkGraphWriter.h"
#include "vtkInformation.h"
#include "vtkObjectFactory.h"
vtkStandardNewMacro(vtkPVSILInformation);
vtkCxxSetObjectMacro(vtkPVSILInformation, SIL, vtkGraph);
//----------------------------------------------------------------------------
vtkPVSILInformation::vtkPVSILInformation()
{
this->RootOnly = 1;
this->SIL = 0;
}
//----------------------------------------------------------------------------
vtkPVSILInformation::~vtkPVSILInformation()
{
this->SetSIL(0);
}
//----------------------------------------------------------------------------
void vtkPVSILInformation::CopyFromObject(vtkObject* obj)
{
this->SetSIL(0);
vtkAlgorithmOutput* algOutput = vtkAlgorithmOutput::SafeDownCast(obj);
if (!algOutput)
{
vtkAlgorithm* alg = vtkAlgorithm::SafeDownCast(obj);
if (alg)
{
algOutput = alg->GetOutputPort(0);
}
}
if (!algOutput)
{
vtkErrorMacro("Information can only be gathered from a vtkAlgorithmOutput.");
return;
}
vtkAlgorithm* reader = algOutput->GetProducer();
// Since vtkPVSILInformation is RootOnly information object, calling
// vtkAlgorithm::UpdateInformation() is scary since if the algorithm does
// indeed update the information, it will only happen on the root node and
// cause deadlocks (e.g. pvcs.GridConnectivity). Since information objects are
// only expected to gather information currently available, we shouldn't be
// calling this UpdateInformation() in the first place.
//
// reader->UpdateInformation();
vtkInformation* info = reader->GetExecutive()->GetOutputInformation(
algOutput->GetIndex());
if (info && info->Has(vtkDataObject::SIL()))
{
vtkGraph* sil = vtkGraph::SafeDownCast(info->Get(vtkDataObject::SIL()));
this->SetSIL(sil);
}
}
//----------------------------------------------------------------------------
void vtkPVSILInformation::CopyToStream(vtkClientServerStream* css)
{
css->Reset();
if (!this->SIL)
{
*css << vtkClientServerStream::Reply
<< vtkClientServerStream::InsertArray(
static_cast<unsigned char*>(NULL), 0)
<< vtkClientServerStream::End;
return;
}
vtkGraph* clone = this->SIL->NewInstance();
clone->ShallowCopy(this->SIL);
vtkGraphWriter* writer = vtkGraphWriter::New();
writer->SetFileTypeToBinary();
writer->WriteToOutputStringOn();
writer->SetInputData(clone);
writer->Write();
*css << vtkClientServerStream::Reply
<< vtkClientServerStream::InsertArray(
writer->GetBinaryOutputString(),
writer->GetOutputStringLength())
<< vtkClientServerStream::End;
writer->RemoveAllInputs();
writer->Delete();
clone->Delete();
}
//----------------------------------------------------------------------------
void vtkPVSILInformation::CopyFromStream(const vtkClientServerStream* css)
{
this->SetSIL(0);
vtkTypeUInt32 length;
if (css->GetArgumentLength(0, 0, &length) && length > 0)
{
unsigned char* raw_data = new unsigned char[length];
css->GetArgument(0, 0, raw_data, length);
vtkGraphReader* reader = vtkGraphReader::New();
reader->SetBinaryInputString(reinterpret_cast<const char*>(raw_data), length);
reader->ReadFromInputStringOn();
delete []raw_data;
reader->Update();
this->SetSIL(reader->GetOutput());
reader->Delete();
}
}
//----------------------------------------------------------------------------
void vtkPVSILInformation::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "SIL: " << this->SIL << endl;
}
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