ffd::ConfigSubsectionGuard Class Reference

Use this to switch to a certain config subsection to get a group of values. More...

#include <45d/config/ConfigSubsectionGuard.hpp>

Public Member Functions
	ConfigSubsectionGuard (ConfigParser &config, const std::string &section)
	Construct a new Config Subsection Guard object. More...
	~ConfigSubsectionGuard (void)
	Destroy the Config Subsection Guard object. More...

Detailed Description

Use this to switch to a certain config subsection to get a group of values.

Inside ConfigParser method:

{
    ConfigSubsectionGuard guard(*this, "Subsection 1");
    int section_1_value = get<int>("Value", -1);
    // section is switched back when guard goes out of scope
}

Any other scope:

ConfigParser config("/etc/example.conf");
{
    ConfigSubsectionGuard guard(config, "Subsection 1");
    int section_1_value = config.get<int>("Value", -1);
    // section is switched back when guard goes out of scope
}

Full Example:

 
#include <45d/config/ConfigParser.hpp>
#include <45d/config/ConfigSubsectionGuard.hpp>
#include <cassert>
#include <iostream>
#include <vector>
 
class SubConf {
public:
    std::string name_;
    bool bool_test_;
    int integer_test_;
    unsigned unsigned_test_;
    float float_test_;
    double double_test_;
    std::string string_test_;
    void dump(void) {
        std::cout << name_ << " Bool Test: " << std::boolalpha << bool_test_ << std::endl;
        std::cout << name_ << " Integer Test: " << integer_test_ << std::endl;
        std::cout << name_ << " Unsigned Test: " << unsigned_test_ << std::endl;
        std::cout << name_ << " Float Test: " << float_test_ << std::endl;
        std::cout << name_ << " Double Test: " << double_test_ << std::endl;
        std::cout << name_ << " String Test: " << string_test_ << std::endl;
    }
};
 
class DynamicSubsectionConfig : public ffd::ConfigParser {
private:
public:
    bool bool_test_ = get<bool>("Bool Test", false);
    int integer_test_ = get<int>("Integer Test", -1);
    unsigned unsigned_test_ = get<unsigned>("Unsigned Test", (unsigned)-1);
    float float_test_ = get<float>("Float Test", -1.0);
    double double_test_ = get<double>("Double Test", -1.0);
    std::string string_test_ = get<std::string>("String Test", "fallback");
 
    DynamicSubsectionConfig(const std::string &path, std::vector<SubConf> &sub_confs)
        : ConfigParser(path) {
        for (ffd::ConfigNode *i : sub_confs_) {
            {
                ffd::ConfigSubsectionGuard guard(*this, i->value_);
                sub_confs.emplace_back(SubConf{ i->value_,
                                                get<bool>("Bool Test", false),
                                                get<int>("Integer Test", -1),
                                                get<unsigned>("Unsigned Test", (unsigned)-1),
                                                get<float>("Float Test", -1.0),
                                                get<double>("Double Test", -1.0),
                                                get<std::string>("String Test", "fallback") });
            }
        }
    }
    void dump(void) {
        std::cout << "Global Bool Test: " << std::boolalpha << bool_test_ << std::endl;
        std::cout << "Global Integer Test: " << integer_test_ << std::endl;
        std::cout << "Global Unsigned Test: " << unsigned_test_ << std::endl;
        std::cout << "Global Float Test: " << float_test_ << std::endl;
        std::cout << "Global Double Test: " << double_test_ << std::endl;
        std::cout << "Global String Test: " << string_test_ << std::endl;
    }
};
 
int main(int argc, char *argv[]) {
    assert(argc == 2);
    std::vector<SubConf> sub_confs;
    DynamicSubsectionConfig config(argv[1], sub_confs);
    config.dump();
    for (auto i : sub_confs)
        i.dump();
    return 0;
}
 

Constructor & Destructor Documentation

ConfigSubsectionGuard()

ffd::ConfigSubsectionGuard::ConfigSubsectionGuard ( ConfigParser &  config, const std::string &  section  )

inline

Construct a new Config Subsection Guard object.

Parameters

config	///< Reference to a ConfigParser or inhereting class
section	///< Section name to switch to

~ConfigSubsectionGuard()

ffd::ConfigSubsectionGuard::~ConfigSubsectionGuard ( void  )

inline

Destroy the Config Subsection Guard object.

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The documentation for this class was generated from the following file:

• src/incl/45d/config/ConfigSubsectionGuard.hpp