SDDSColumnSet.h

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//
// Class SDDSColumnSet
//   This class writes rows of SDDS files.
//
// Copyright (c) 2019, Christof Metzger-Kraus, Open Sourcerer
// All rights reserved
//
// This file is part of OPAL.
//
// OPAL is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// You should have received a copy of the GNU General Public License
// along with OPAL. If not, see <https://www.gnu.org/licenses/>.
//
#ifndef SDDSWRITERCOLUMNSET_H
#define SDDSWRITERCOLUMNSET_H
 
#include "Structure/SDDSColumn.h"
#include "Utilities/OpalException.h"
 
#include <map>
#include <ostream>
#include <string>
#include <vector>
 
class SDDSColumnSet {
public:
    SDDSColumnSet();
 
    void addColumn(
            const std::string& name, const std::string& type, const std::string& unit,
            const std::string& desc, std::ios_base::fmtflags flags = std::ios_base::scientific,
            unsigned short precision = 15);
 
    template <typename T>
    void addColumnValue(const std::string& name, const T& val);
 
    void writeHeader(std::ostream& os, const std::string& indent) const;
 
    void writeRow(std::ostream& os) const;
 
    bool hasColumns() const;
 
private:
    std::vector<SDDSColumn> columns_m;
    std::map<std::string, size_t> name2idx_m;
};
 
inline SDDSColumnSet::SDDSColumnSet() {}
 
template <typename T>
void SDDSColumnSet::addColumnValue(const std::string& name, const T& val) {
    auto it = name2idx_m.find(name);
    if (it == name2idx_m.end()) {
        throw OpalException(
                "SDDSColumnSet::addColumnValue", "column name '" + name + "' doesn't exists");
    }
 
    auto& col = columns_m[it->second];
    col.addValue(val);
}
 
inline bool SDDSColumnSet::hasColumns() const { return !name2idx_m.empty(); }
 
#endif