FromFile.h

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#ifndef OPALX_FROM_FILE_H
#define OPALX_FROM_FILE_H
 
#include <fstream>
#include <memory>
#include <sstream>
#include <string>
#include <vector>
#include "Distribution.h"
#include "Ippl.h"
#include "OPALTypes.h"
#include "SamplingBase.hpp"
#include "Utilities/OpalException.h"
 
class FromFile : public SamplingBase {
public:
    using size_type = ippl::detail::size_type;
 
    FromFile(
            std::shared_ptr<ParticleContainer_t> pc, std::shared_ptr<FieldContainer_t> fc,
            Distribution_t* opalDist);
 
    FromFile(
            std::shared_ptr<ParticleContainer_t> pc, std::shared_ptr<FieldContainer_t> fc,
            const std::string& filename);
 
    void generateParticles(size_t& numberOfParticles, Vector_t<double, 3> nr) override;
 
    void emitParticles(double t, double dt) override;
 
private:
    void readFile(const std::string& filename);
 
    std::vector<size_t> parseHeader(const std::string& headerLine);
 
    std::string normalizeColumnName(const std::string& name);
 
    std::string filename_m;
 
    std::vector<std::vector<double>> particleData_m;
 
    size_t numParticles_m;
 
    std::vector<size_t> columnIndices_m;
};
 
#endif  // OPALX_FROM_FILE_H