launchdarkly::server_side::data_systems::LazyLoad Class Reference

#include <lazy_load_system.hpp>

Inheritance diagram for launchdarkly::server_side::data_systems::LazyLoad:

Collaboration diagram for launchdarkly::server_side::data_systems::LazyLoad:

Classes
struct	Kinds

Public Types
using	ClockType = std::chrono::steady_clock
using	TimeFn = std::function< std::chrono::time_point< ClockType >()>

Public Member Functions
	LazyLoad (Logger const &logger, config::built::LazyLoadConfig cfg, data_components::DataSourceStatusManager &status_manager)
	LazyLoad (Logger const &logger, config::built::LazyLoadConfig cfg, data_components::DataSourceStatusManager &status_manager, TimeFn time)
std::string const &	Identity () const override
std::shared_ptr< data_model::FlagDescriptor >	GetFlag (std::string const &key) const override
	Get the flag named by key. Returns nullptr if no such flag exists.
std::shared_ptr< data_model::SegmentDescriptor >	GetSegment (std::string const &key) const override
	Get the segment named by key. Returns nullptr if no such flag exists.
std::unordered_map< std::string, std::shared_ptr< data_model::FlagDescriptor > >	AllFlags () const override
	Get a map of all flags.
std::unordered_map< std::string, std::shared_ptr< data_model::SegmentDescriptor > >	AllSegments () const override
	Get a map of all segments.
void	Initialize () override
	Initializes the system. This method will be called before any of the IStore methods are called.
bool	Initialized () const override
Public Member Functions inherited from launchdarkly::server_side::data_interfaces::IDataSystem
	IDataSystem (IDataSystem const &item)=delete
	IDataSystem (IDataSystem &&item)=delete
IDataSystem &	operator= (IDataSystem const &)=delete
IDataSystem &	operator= (IDataSystem &&)=delete
Public Member Functions inherited from launchdarkly::server_side::data_interfaces::IStore
	IStore (IStore const &item)=delete
	IStore (IStore &&item)=delete
IStore &	operator= (IStore const &)=delete
IStore &	operator= (IStore &&)=delete

Detailed Description

LazyLoad implements a Data System that pulls data from a persistent store on-demand. It is intended for use cases where holding an entire environment in memory isn't desired, or for uses that disallow direct communication with LaunchDarkly servers.

LazyLoad is able to remain efficient because it caches responses from the store. Over time, data becomes stale causing the system to refresh data.

Member Function Documentation

AllFlags()

std::unordered_map< std::string, std::shared_ptr< data_model::FlagDescriptor > > launchdarkly::server_side::data_systems::LazyLoad::AllFlags ( ) const

overridevirtual

Get a map of all flags.

Returns

Map of shared pointers to flags.

Implements launchdarkly::server_side::data_interfaces::IStore.

AllSegments()

std::unordered_map< std::string, std::shared_ptr< data_model::SegmentDescriptor > > launchdarkly::server_side::data_systems::LazyLoad::AllSegments ( ) const

overridevirtual

Get a map of all segments.

Returns

Map of shared pointers to segments.

Implements launchdarkly::server_side::data_interfaces::IStore.

GetFlag()

std::shared_ptr< data_model::FlagDescriptor > launchdarkly::server_side::data_systems::LazyLoad::GetFlag ( std::string const &  key ) const

overridevirtual

Get the flag named by key. Returns nullptr if no such flag exists.

Parameters

key	Key of the flag.

Returns

Shared pointer to the flag.

Implements launchdarkly::server_side::data_interfaces::IStore.

GetSegment()

std::shared_ptr< data_model::SegmentDescriptor > launchdarkly::server_side::data_systems::LazyLoad::GetSegment ( std::string const &  key ) const

overridevirtual

Get the segment named by key. Returns nullptr if no such flag exists.

Parameters

key	Key of the segment.

Returns

Shared pointer to the segment.

Implements launchdarkly::server_side::data_interfaces::IStore.

Identity()

std::string const & launchdarkly::server_side::data_systems::LazyLoad::Identity ( ) const

overridevirtual

Returns

Identity of the system. Used in logs.

Implements launchdarkly::server_side::data_interfaces::IDataSystem.

Initialize()

void launchdarkly::server_side::data_systems::LazyLoad::Initialize ( )

overridevirtual

Initializes the system. This method will be called before any of the IStore methods are called.

Implements launchdarkly::server_side::data_interfaces::IDataSystem.

Initialized()

bool launchdarkly::server_side::data_systems::LazyLoad::Initialized ( ) const

overridevirtual

Returns

True if the store has ever contained data.

Implements launchdarkly::server_side::data_interfaces::IStore.

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

• src/data_systems/lazy_load/lazy_load_system.hpp
• src/data_systems/lazy_load/lazy_load_system.cpp