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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 itkMultipleLogOutput_h
#define itkMultipleLogOutput_h
#include "itkLogOutput.h"
#include <fstream>
#include <set>
namespace itk
{
/** \class MultipleLogOutput
* \brief Allows writing simultaneously to multiple streams. Note that the
* class derives from std::streambuf and contains a
* std::set<> of LogOutput.
*
* \author Hee-Su Kim, Compute Science Dept. Kyungpook National University,
* ISIS Center, Georgetown University.
*
* \ingroup OSSystemObjects LoggingObjects
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT MultipleLogOutput : public LogOutput
{
public:
ITK_DISALLOW_COPY_AND_MOVE(MultipleLogOutput);
using Self = MultipleLogOutput;
using Superclass = LogOutput;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
using OutputType = LogOutput;
itkOverrideGetNameOfClassMacro(MultipleLogOutput);
itkNewMacro(MultipleLogOutput);
public:
/** Register a additional output stream into the list of LogOutputs to write
* to. The messages will be sent to the streams in the same order that the
* streams have been added here. */
void
AddLogOutput(OutputType * output);
/** Broadcast a flush operation to all the output streams */
void
Flush() override;
/** Write to multiple outputs */
void
Write(double timestamp) override;
/** Write to multiple outputs */
void
Write(const std::string & content) override;
/** Write to a buffer */
void
Write(const std::string & content, double timestamp) override;
protected:
/** Constructor */
MultipleLogOutput();
/** Destructor */
~MultipleLogOutput() override;
private:
std::set<OutputType::Pointer> m_Output{};
};
} // namespace itk
#endif // itkMultipleLogOutput_h
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