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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright 2008 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov
#include "vtkArrayDataReader.h"
#include "vtkArray.h"
#include "vtkArrayData.h"
#include "vtkArrayReader.h"
#include "vtkObjectFactory.h"
#include "vtkSmartPointer.h"
#include "vtksys/FStream.hxx"
#include <sstream>
#include <stdexcept>
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkArrayDataReader);
vtkArrayDataReader::vtkArrayDataReader()
: FileName(nullptr)
{
this->SetNumberOfInputPorts(0);
this->ReadFromInputString = false;
}
vtkArrayDataReader::~vtkArrayDataReader()
{
this->SetFileName(nullptr);
}
void vtkArrayDataReader::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "FileName: " << (this->FileName ? this->FileName : "(none)") << endl;
os << indent << "InputString: " << this->InputString << endl;
os << indent << "ReadFromInputString: " << (this->ReadFromInputString ? "on" : "off") << endl;
}
void vtkArrayDataReader::SetInputString(const vtkStdString& string)
{
this->InputString = string;
this->Modified();
}
vtkStdString vtkArrayDataReader::GetInputString()
{
return this->InputString;
}
int vtkArrayDataReader::RequestData(
vtkInformation*, vtkInformationVector**, vtkInformationVector* outputVector)
{
try
{
vtkArrayData* array_data = nullptr;
if (this->ReadFromInputString)
{
array_data = vtkArrayDataReader::Read(this->InputString);
}
else
{
if (!this->FileName)
throw std::runtime_error("FileName not set.");
vtksys::ifstream file(this->FileName, std::ios::binary);
array_data = vtkArrayDataReader::Read(file);
}
if (!array_data)
throw std::runtime_error("Error reading vtkArrayData.");
vtkArrayData* const output_array_data = vtkArrayData::GetData(outputVector);
output_array_data->ShallowCopy(array_data);
array_data->Delete();
return 1;
}
catch (std::exception& e)
{
vtkErrorMacro(<< e.what());
}
return 0;
}
vtkArrayData* vtkArrayDataReader::Read(const vtkStdString& str)
{
std::istringstream iss(str);
return vtkArrayDataReader::Read(iss);
}
vtkArrayData* vtkArrayDataReader::Read(istream& stream)
{
try
{
// Read enough of the file header to identify the type ...
std::string header_string;
std::getline(stream, header_string);
std::istringstream header_buffer(header_string);
std::string header_name;
vtkIdType header_size;
header_buffer >> header_name >> header_size;
if (header_name != "vtkArrayData")
{
throw std::runtime_error("Not a vtkArrayData file");
}
if (header_size < 0)
{
throw std::runtime_error("Invalid number of arrays");
}
vtkArrayData* data = vtkArrayData::New();
for (vtkIdType i = 0; i < header_size; ++i)
{
vtkArray* a = vtkArrayReader::Read(stream);
data->AddArray(a);
a->Delete();
}
return data;
}
catch (std::exception& e)
{
vtkGenericWarningMacro(<< e.what());
}
return nullptr;
}
VTK_ABI_NAMESPACE_END
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