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/*=========================================================================
Program: Visualization Toolkit
Module: vtkXMLPartitionedDataSetWriter.cxx
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 "vtkXMLPartitionedDataSetWriter.h"
#include "vtkErrorCode.h"
#include "vtkInformation.h"
#include "vtkLogger.h"
#include "vtkMultiProcessController.h"
#include "vtkNew.h"
#include "vtkObjectFactory.h"
#include "vtkPartitionedDataSet.h"
#include "vtkPartitionedDataSetCollection.h"
#include "vtkXMLCompositeDataSetWriterHelper.h"
#include "vtkXMLDataElement.h"
#include "vtkXMLDataWriterHelper.h"
#include <vtksys/SystemTools.hxx>
#include <cassert>
#include <map>
#include <memory>
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkXMLPartitionedDataSetWriter);
//----------------------------------------------------------------------------
vtkXMLPartitionedDataSetWriter::vtkXMLPartitionedDataSetWriter() = default;
//----------------------------------------------------------------------------
vtkXMLPartitionedDataSetWriter::~vtkXMLPartitionedDataSetWriter() = default;
//----------------------------------------------------------------------------
void vtkXMLPartitionedDataSetWriter::SetInputData(vtkPartitionedDataSet* pd)
{
this->SetInputDataObject(pd);
}
//----------------------------------------------------------------------------
int vtkXMLPartitionedDataSetWriter::FillInputPortInformation(int, vtkInformation* info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkPartitionedDataSet");
return 1;
}
//----------------------------------------------------------------------------
int vtkXMLPartitionedDataSetWriter::RequestData(
vtkInformation*, vtkInformationVector** inputVector, vtkInformationVector*)
{
vtkLogScopeF(TRACE, "RequestData ('%s')", this->FileName);
this->SetErrorCode(vtkErrorCode::UnknownError);
if (this->WriteToOutputString)
{
vtkErrorMacro("This writer does not support writing to string yet.");
return 0;
}
if (!this->FileName || this->FileName[0] == '\0')
{
this->SetErrorCode(vtkErrorCode::NoFileNameError);
vtkErrorMacro("Filename cannot be empty!");
return 0;
}
auto controller = this->GetController();
auto inputPDS = vtkPartitionedDataSet::GetData(inputVector[0], 0);
assert(inputPDS != nullptr);
this->UpdateProgress(0.0);
std::string path, filename, artifactsDir;
std::tie(path, filename, artifactsDir) = vtkXMLWriter2::SplitFileName(this->FileName);
vtkLogF(TRACE, "Filename components(path='%s', filename='%s', artifactsDir='%s')", path.c_str(),
filename.c_str(), artifactsDir.c_str());
if (!this->MakeDirectory(path))
{
this->SetErrorCode(vtkErrorCode::OutOfDiskSpaceError);
vtkErrorMacro("Failed to create directory '" << path << "'.");
return 0;
}
// we intentionally don't add path as an artifact to cleanup if write fails.
// this->AddArtifact(path, true);
const auto absoluteArtifactsDir = path + "/" + artifactsDir;
if (!this->MakeDirectory(absoluteArtifactsDir))
{
this->SetErrorCode(vtkErrorCode::OutOfDiskSpaceError);
vtkErrorMacro("Failed to create directory '" << absoluteArtifactsDir << "'.");
return 0;
}
this->AddRootArtifact(absoluteArtifactsDir, /*isDir*/ true);
// note: localDataSets may have nullptrs.
auto localDataSets =
vtkCompositeDataSet::GetDataSets<vtkDataObject>(inputPDS, /*preserveNull=*/true);
const int localOffset =
vtkXMLWriter2::ExclusiveScanSum(controller, static_cast<int>(localDataSets.size()));
// note: localFilenames may have empty strings.
std::vector<std::string> localFilenames;
vtkNew<vtkXMLCompositeDataSetWriterHelper> helper;
helper->SetWriter(this);
const auto filenameNoExt = vtksys::SystemTools::GetFilenameWithoutLastExtension(filename);
for (size_t cc = 0; cc < localDataSets.size(); ++cc)
{
const auto prefix = artifactsDir + "/" + filenameNoExt + "_" + std::to_string(localOffset + cc);
auto fname = helper->WriteDataSet(path, prefix, localDataSets[cc]);
localFilenames.push_back(fname);
if (!fname.empty())
{
this->AddArtifact(fname);
}
}
// pass written filenames to root node. allFilenames is non empty only on root node.
std::vector<std::string> allFilenames = vtkXMLWriter2::Gather(controller, localFilenames, 0);
// Now write the summary XML on the root node.
bool success = true;
if (controller == nullptr || controller->GetLocalProcessId() == 0)
{
success = this->WriteSummaryXML(inputPDS, allFilenames);
}
if (controller != nullptr && controller->GetNumberOfProcesses() > 1)
{
int message[2] = { success ? 1 : 0, static_cast<int>(this->GetErrorCode()) };
controller->Broadcast(message, 2, 0);
success = (message[0] == 1);
this->SetErrorCode(message[1]);
}
else if (success)
{
this->SetErrorCode(vtkErrorCode::NoError);
}
this->UpdateProgress(1.0);
vtkLogF(TRACE, "success: %d", (int)success);
return success ? 1 : 0;
}
//----------------------------------------------------------------------------
bool vtkXMLPartitionedDataSetWriter::WriteSummaryXML(
vtkPartitionedDataSet* input, const std::vector<std::string>& allFilenames)
{
vtkNew<vtkXMLDataWriterHelper> helper;
helper->SetWriter(this);
helper->SetDataSetVersion(this->GetDataSetMajorVersion(), this->GetDataSetMinorVersion());
helper->SetDataSetName(input->GetClassName());
if (!helper->OpenFile())
{
return false;
}
this->AddArtifact(this->FileName);
if (!helper->BeginWriting())
{
return false;
}
// build and serialize the DOM.
vtkNew<vtkXMLDataElement> root;
root->SetName(input->GetClassName());
int index = 0;
for (auto& fname : allFilenames)
{
if (!fname.empty()) // fname will be empty for null nodes in the input.
{
vtkNew<vtkXMLDataElement> child;
child->SetName("DataSet");
child->SetIntAttribute("index", index);
child->SetAttribute("file", fname.c_str());
root->AddNestedElement(child);
}
++index;
}
helper->AddXML(root);
helper->AddGlobalFieldData(input);
return helper->EndWriting() != 0;
}
//----------------------------------------------------------------------------
void vtkXMLPartitionedDataSetWriter::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
VTK_ABI_NAMESPACE_END
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