Struct ServiceRegistry

#[repr(C)]
pub struct ServiceRegistry { /* private fields */ }

Registry for services. Used by picodata to create instances of services.

Implementations

impl ServiceRegistry

pub fn add<S: Service + 'static>( &mut self, name: &str, plugin_version: &str, factory: fn() -> S, )

Add new service to the registry.

Arguments

• name: service name
• plugin_version: version of service’s plugin
• factory: new service instance factory

pub fn make( &self, service_name: &str, version: &str, ) -> Result<Option<ServiceBox>, ()>

Create service from service name and plugin version pair. Return an error if there is more than one factory suitable for creating a service.

pub fn contains(&self, service_name: &str, version: &str) -> Result<bool, ()>

Return true if registry contains needle service, false elsewhere. Return an error if there is more than one factory suitable for creating a service.

pub fn add_config_validator<S: Service>( &mut self, service_name: &str, plugin_version: &str, validator: fn(S::Config) -> CallbackResult<()>, )

where S::Config: DeserializeOwned + 'static,

Add validator for service configuration. Called before new configration is loaded. Returning an error for validator will abort configuration change clusterwide.

Arguments

• service_name: service name which configuration will be validated
• plugin_version: plugin version
• validator: validation function

pub fn remove_config_validator( &mut self, service_name: &str, version: &str, ) -> Option<ValidatorBox>

Remove config validator for service.

pub fn dump(&self) -> Vec<(String, String)>

Return a registered list of (service name, plugin version) pairs.

Trait Implementations

impl Default for ServiceRegistry

fn default() -> ServiceRegistry

Returns the “default value” for a type.

impl GetStaticEquivalent_ for ServiceRegistry

type StaticEquivalent = _static_ServiceRegistry

The 'static equivalent of Self

impl StableAbi for ServiceRegistry

const LAYOUT: &'static TypeLayout

The layout of the type provided by implementors.

type IsNonZeroType = False

Whether this type has a single invalid bit-pattern.

const ABI_CONSTS: AbiConsts = _

const-equivalents of the associated types.