config.hpp

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#ifndef {{cookiecutter.module_name|upper}}_CONFIG_HPP_
#define {{cookiecutter.module_name|upper}}_CONFIG_HPP_
 
#include <yaml-cpp/yaml.h>
 
#include <string>
 
namespace {{cookiecutter.module_name}} {

const std::string CONFIG_DEFAULT_PROCNAME       = "{{cookiecutter.application_name}}";
const std::string CONFIG_DEFAULT_FILENAME       = ""; // "{{cookiecutter.module_name}}/config.yaml";
const std::string CONFIG_DEFAULT_SCXML_FILENAME = "{{cookiecutter.module_name}}/sm.xml";
const std::string CONFIG_DEFAULT_LOG_LEVEL      = "INFO";
const std::string CONFIG_DEFAULT_LOG_PROPERTIES = "{{cookiecutter.module_name}}/log.properties";
const std::string CONFIG_DEFAULT_DB_ENDPOINT    = "127.0.0.1:6379";
const int CONFIG_DEFAULT_DB_TIMEOUT             = 2;  // sec
const std::string CONFIG_DEFAULT_REQ_ENDPOINT   = "tcp://*:5577";
const std::string CONFIG_DEFAULT_SUB_ENDPOINT   = "tcp://127.0.0.1::5560";

const std::string CONFIG_ENVVAR_DBHOST         = "DB_HOST";
 

class Config
{
public:
    Config();
    virtual ~Config();
 
    bool                ParseOptions(int argc, char *argv[]);
 
    void                LoadConfig(const std::string& filename = "");
 
    const std::string&  GetMsgReplierEndpoint() const;
    const std::string&  GetMsgSubEndpoint() const;
 
    const std::string&  GetDbEndpoint() const;
    const timeval       GetDbTimeout() const;
 
    const std::string&  GetSmScxmlFilename() const;
 
    const std::string&  GetConfigFilename() const;
    const std::string&  GetProcName() const;
    const std::string&  GetLogLevel() const;
    const std::string&  GetLogProperties() const;
 
    Config(const Config&) = delete;              
    Config& operator= (const Config&) = delete;  
 
private:
    YAML::Node          m_config_node;
 
    std::string         m_proc_name;
    std::string         m_log_level;
    std::string         m_log_properties;
    std::string         m_config_filename;
    std::string         m_scxml_filename;
    std::string         m_db_host_endpoint;
    int                 m_db_timeout_sec;
    std::string         m_req_endpoint;
    std::string         m_sub_endpoint;
};
 
}  // namespace {{cookiecutter.module_name}}
 
#endif  // {{cookiecutter.module_name|upper}}_CONFIG_HPP_