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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkDOMTestObjectDOMReader_h
#define itkDOMTestObjectDOMReader_h
#include "itkDOMReader.h"
#include "itkDOMTestObject.h"
namespace itk
{
class DOMTestObjectDOMReader : public DOMReader<DOMTestObject>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(DOMTestObjectDOMReader);
/** Standard class type aliases. */
using Self = DOMTestObjectDOMReader;
using Superclass = DOMReader<DOMTestObject>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(DOMTestObjectDOMReader);
protected:
DOMTestObjectDOMReader() = default;
/**
* This function is called automatically when update functions are performed.
* It should fill the contents of the output object by pulling information from the intermediate DOM object.
*/
void
GenerateData(const DOMNodeType * inputdom, const void *) override;
};
inline void
DOMTestObjectDOMReader::GenerateData(const DOMNodeType * inputdom, const void *)
{
OutputType * output = this->GetOutput();
if (output == nullptr)
{
auto object = OutputType::New();
output = (OutputType *)object;
this->SetOutput(output);
}
FancyString s;
std::ifstream ifs;
if (inputdom->GetName() != "DOMTestObject")
{
itkExceptionMacro("tag name DOMTestObject is expected");
}
// read child foo
const DOMNodeType * foo = inputdom->GetChild("foo");
if (foo == nullptr)
{
itkExceptionMacro("child foo not found");
}
s = foo->GetAttribute("fname");
output->SetFooFileName(s);
// read the foo value from file
ifs.open(s.ToString().c_str());
if (!ifs.is_open())
{
itkExceptionMacro("cannot read foo file");
}
std::string fooValue;
ifs >> fooValue;
output->SetFooValue(fooValue);
ifs.close();
}
} // namespace itk
#endif // itkDOMTestObjectDOMReader_h
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