config_loader.h File Reference

YAML-based configuration loader for the unified system. More...

#include "unified_config.h"
#include <kcenon/common/patterns/result.h>
#include <cstdlib>
#include <filesystem>
#include <fstream>
#include <regex>
#include <sstream>
#include <string>
#include <unordered_map>
#include <vector>

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Classes
struct	kcenon::common::config::validation_issue
	Validation result for a configuration field. More...
class	kcenon::common::config::config_loader
	Loads and validates unified configuration from various sources. More...

Namespaces
namespace	kcenon
namespace	kcenon::common
	Core interfaces.
namespace	kcenon::common::config
namespace	kcenon::common::config::config_error_codes
	Configuration loading error codes.

Variables
constexpr int	kcenon::common::config::config_error_codes::file_not_found = 1001
constexpr int	kcenon::common::config::config_error_codes::parse_error = 1002
constexpr int	kcenon::common::config::config_error_codes::validation_error = 1003
constexpr int	kcenon::common::config::config_error_codes::invalid_value = 1004
constexpr int	kcenon::common::config::config_error_codes::io_error = 1005

Detailed Description

YAML-based configuration loader for the unified system.

This header provides the config_loader class for loading configuration from YAML files, environment variables, and merging them with defaults.

Configuration Priority (highest to lowest):

1. Environment variables (UNIFIED_*)
2. Configuration file (YAML)
3. Default values

Features:

• YAML file loading (requires yaml-cpp when BUILD_WITH_YAML_CPP is defined)
• Environment variable substitution (${VAR_NAME} syntax)
• Environment variable overrides (UNIFIED_* prefix)
• Configuration validation
• Default value fallback

See also

TICKET-202 for implementation requirements.

unified_config.h for configuration schema.

Definition in file config_loader.h.