forked from InsightSoftwareConsortium/itk-wasm
/
itkOutputTextStream.h
100 lines (85 loc) · 2.4 KB
/
itkOutputTextStream.h
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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 itkOutputTextStream_h
#define itkOutputTextStream_h
#include "itkPipeline.h"
#include "itkWASMStringStream.h"
#include <string>
#ifndef ITK_WASM_NO_MEMORY_IO
#include <sstream>
#endif
#ifndef ITK_WASM_NO_FILESYSTEM_IO
#include <fstream>
#endif
namespace itk
{
namespace wasm
{
/**
*\class OutputTextStream
* \brief Output text std::ostream for an itk::wasm::Pipeline
*
* This stream is written to the filesystem or memory when the object goes out of scope.
*
* Call `Get()` to get the std::ostream & to use an output for a pipeline.
*
* \ingroup WebAssemblyInterface
*/
class OutputTextStream
{
public:
std::ostream & Get() {
return *m_OStream;
}
void SetFileName(const std::string & fileName)
{
if (m_DeleteOStream && m_OStream != nullptr)
{
delete m_OStream;
}
m_OStream = new std::ofstream(fileName, std::ofstream::out);
m_DeleteOStream = true;
}
OutputTextStream() = default;
~OutputTextStream();
/** Output index. */
void SetIdentifier(const std::string & identifier)
{
if (m_DeleteOStream && m_OStream != nullptr)
{
delete m_OStream;
}
m_DeleteOStream = false;
m_WASMStringStream = WASMStringStream::New();
m_OStream = &(m_WASMStringStream->GetStringStream());
this->m_Identifier = identifier;
}
const std::string & GetIdentifier() const
{
return this->m_Identifier;
}
protected:
std::ostream * m_OStream{nullptr};
bool m_DeleteOStream{false};
std::string m_Identifier;
WASMStringStream::Pointer m_WASMStringStream;
};
bool lexical_cast(const std::string &output, OutputTextStream &outputStream);
} // end namespace wasm
} // end namespace itk
#endif