mysql_harness::DynamicConfig Class Reference

Respresents the current Router configuration. More...

#include <dynamic_config.h>

Classes
struct	SectionConfig

Public Types
enum class	ValueType { ConfiguredValue , DefaultForCluster , DefaultForClusterSet }
	Type of the options stored in the dynamic configuration object. More...
using	OptionName = std::string
using	OptionValue = std::variant< std::monostate, int64_t, bool, double, std::string >
using	SectionId = std::pair< std::string, std::string >
using	SectionOptions = std::map< OptionName, OptionValue >
using	JsonAllocator = rapidjson::CrtAllocator
using	JsonDocument = rapidjson::GenericDocument< rapidjson::UTF8<>, JsonAllocator >

Public Member Functions
void	set_option_configured (const SectionId &section_id, std::string_view option_name, const OptionValue &value)
	Sets a given option in a given section to a specific value. More...
void	set_option_default (const SectionId &section_id, std::string_view option_name, const OptionValue &default_value_cluster, const OptionValue &default_value_clusterset)
	Sets a default for an option in a given section to a specific value. More...
void	set_option_default (const SectionId &section_id, std::string_view option_name, const OptionValue &default_value)
	Sets a default for an option in a given section to a specific value. More...
JsonDocument	get_json (const ValueType value_type) const
	Return the current configuration options and their values stored in the dynamic configuration object. More...
std::string	get_json_as_string (const ValueType value_type) const
	Return the current configuration options and their values stored in the dynamic configuration object as a string. More...
void	clear ()
	Clear the DynamicConfig object (remove all registered sections with their option values and defaults). More...

Static Public Member Functions
static DynamicConfig &	instance ()
	Returns a singleton object of DynamicConfig class. More...

Private Types
using	Config = std::map< SectionId, SectionConfig >

Private Member Functions
	DynamicConfig ()=default
	DynamicConfig (const DynamicConfig &)=delete
DynamicConfig &	operator= (const DynamicConfig &)=delete
void	set_option (const ValueType value_type, const SectionId &section_id, std::string_view option_name, const OptionValue &value)
Config &	get_config (const ValueType value_type)
Config const &	get_config (const ValueType value_type) const

Private Attributes
Config	configured_
Config	defaults_cluster_
Config	defaults_clusterset_

Detailed Description

Respresents the current Router configuration.

It is initialized at start with the defaults and configuration from the configuration file(s).

Member Typedef Documentation

Config

using mysql_harness::DynamicConfig::Config = std::map<SectionId, SectionConfig>

private

JsonAllocator

using mysql_harness::DynamicConfig::JsonAllocator = rapidjson::CrtAllocator

JsonDocument

using mysql_harness::DynamicConfig::JsonDocument = rapidjson::GenericDocument<rapidjson::UTF8<>, JsonAllocator>

OptionName

using mysql_harness::DynamicConfig::OptionName = std::string

OptionValue

using mysql_harness::DynamicConfig::OptionValue = std::variant<std::monostate, int64_t, bool, double, std::string>

SectionId

using mysql_harness::DynamicConfig::SectionId = std::pair<std::string, std::string>

SectionOptions

using mysql_harness::DynamicConfig::SectionOptions = std::map<OptionName, OptionValue>

Member Enumeration Documentation

ValueType

enum class mysql_harness::DynamicConfig::ValueType

strong

Type of the options stored in the dynamic configuration object.

Enumerator
ConfiguredValue
DefaultForCluster
DefaultForClusterSet

Constructor & Destructor Documentation

DynamicConfig() [1/2]

mysql_harness::DynamicConfig::DynamicConfig ( )

privatedefault

DynamicConfig() [2/2]

mysql_harness::DynamicConfig::DynamicConfig ( const DynamicConfig &  )

privatedelete

Member Function Documentation

clear()

void mysql_harness::DynamicConfig::clear

(

)

Clear the DynamicConfig object (remove all registered sections with their option values and defaults).

get_config() [1/2]

DynamicConfig::Config & mysql_harness::DynamicConfig::get_config ( const ValueType  value_type )

private

get_config() [2/2]

DynamicConfig::Config const & mysql_harness::DynamicConfig::get_config ( const ValueType  value_type ) const

private

get_json()

JsonDocument mysql_harness::DynamicConfig::get_json

(

const ValueType

value_type

)

const

Return the current configuration options and their values stored in the dynamic configuration object.

Parameters

value_type

type of the options to be returned

Returns

JSON Document containing all the options of a selected type.

get_json_as_string()

std::string mysql_harness::DynamicConfig::get_json_as_string

(

const ValueType

value_type

)

const

Return the current configuration options and their values stored in the dynamic configuration object as a string.

Parameters

value_type

type of the options to be returned

Returns

JSON string containing all the options of a selected type.

instance()

DynamicConfig & mysql_harness::DynamicConfig::instance ( )

static

Returns a singleton object of DynamicConfig class.

operator=()

DynamicConfig & mysql_harness::DynamicConfig::operator= ( const DynamicConfig &  )

privatedelete

set_option()

void mysql_harness::DynamicConfig::set_option ( const ValueType  value_type, const SectionId &  section_id, std::string_view  option_name, const OptionValue &  value  )

private

set_option_configured()

void mysql_harness::DynamicConfig::set_option_configured	(	const SectionId &	section_id,
		std::string_view	option_name,
		const OptionValue &	value
	)

Sets a given option in a given section to a specific value.

Parameters

section_id	identifier of a section for this operation
option_name	name of the option inside a section for this operation
value	value to be set

set_option_default() [1/2]

void mysql_harness::DynamicConfig::set_option_default	(	const SectionId &	section_id,
		std::string_view	option_name,
		const OptionValue &	default_value
	)

Sets a default for an option in a given section to a specific value.

Overload for more common case when cluster and clusterset values are the same.

Parameters

section_id	identifier of a section for this operation
option_name	name of the option inside a section for this operation
default_value	default value for both srtandalne cluster and clusterset setup to be set

set_option_default() [2/2]

void mysql_harness::DynamicConfig::set_option_default	(	const SectionId &	section_id,
		std::string_view	option_name,
		const OptionValue &	default_value_cluster,
		const OptionValue &	default_value_clusterset
	)

Sets a default for an option in a given section to a specific value.

Parameters

section_id	identifier of a section for this operation
option_name	name of the option inside a section for this operation
default_value_cluster	default value for srtandalne cluster setup to be set
default_value_clusterset	default value for the clusterset setup to be set

Member Data Documentation

configured_

Config mysql_harness::DynamicConfig::configured_

private

defaults_cluster_

Config mysql_harness::DynamicConfig::defaults_cluster_

private

defaults_clusterset_

Config mysql_harness::DynamicConfig::defaults_clusterset_

private

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

• router/src/harness/include/mysql/harness/dynamic_config.h
• router/src/harness/src/dynamic_config.cc