Struct Registry 

pub struct Registry { /* private fields */ }

Wraps prometheus::Registry with an embedded Filter so that register_*_with_registry! macros can decide whether a metric is exposed.

Metrics registered through the wrapper macros join the inner registry wrapped in a private collector type, which consults the filter on every collect. Exposure changes need no bookkeeping here: the next gather simply sees the new filter.

Implementations

impl Registry

pub fn new() -> Self

Creates a registry whose filter honours the METRICS_FILTER env var (permissive when unset).

pub fn new_custom( prefix: Option<String>, labels: Option<HashMap<String, String>>, filter: Option<Arc<Filter>>, ) -> Result<Self>

Creates a custom-prefixed registry.

pub fn filter(&self) -> Arc<Filter>

Returns the registry’s filter, so related registries can be built to share it via Registry::new_custom.

pub fn register_filtered<C>( &self, name: &str, module: &str, level: MetricLevel, collector: C, ) -> Result<C>

where C: Collector + Clone + 'static,

Used by the wrapper macros: registers collector wrapped in a private collector type, so the filter in effect at each gather decides whether the metric is exposed. Duplicate registrations are rejected by the inner registry’s descriptor check, hidden or not.

pub fn register(&self, c: Box<dyn Collector>) -> Result<()>

pub fn unregister(&self, c: Box<dyn Collector>) -> Result<()>

pub fn gather(&self) -> Vec<MetricFamily>

Gathers the registry’s metric families.

Trait Implementations

impl Clone for Registry

fn clone(&self) -> Registry

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Registry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Registry

fn default() -> Self

Returns the “default value” for a type.