Struct InstrumentedSource 

pub struct InstrumentedSource<'a, S>
where
    S: Source + ?Sized,
{ /* private fields */ }

Wraps a &dyn Source (or any &S: Source) and emits spans + metrics around every call. Constructed by Pipeline::run and never exposed to end users; the wrapped source remains the user-facing object.

Implementations

impl<'a, S> InstrumentedSource<'a, S>

where S: Source + ?Sized,

pub fn new(inner: &'a S, labels: Labels) -> InstrumentedSource<'a, S>

Trait Implementations

impl<'a, S> Source for InstrumentedSource<'a, S>

where S: Source + ?Sized,

fn connector_name(&self) -> &'static str

Stable identifier used as the connector label on metrics and the connector attribute on spans. Defaults to the final segment of std::any::type_name::<Self>(), e.g. "RestSource". Built-in connectors override with a short, friendly snake_case name (e.g. "rest"). Must return a non-empty string; observability decorators fall back to "unknown" in release builds if it is empty (and debug_assert! in debug builds).

fn state_key(&self) -> Option<String>

Stable key under which this source’s incremental-replication bookmark should be persisted in a StateStore.

fn apply_start_bookmark<'life0, 'async_trait>( &'life0 self, bookmark: Value, ) -> Pin<Box<dyn Future<Output = Result<(), FaucetError>> + Send + 'async_trait>>

where 'life0: 'async_trait, InstrumentedSource<'a, S>: 'async_trait,

Apply a bookmark loaded from a StateStore as this run’s starting point.

fn fetch_with_context<'life0, 'life1, 'async_trait>( &'life0 self, context: &'life1 HashMap<String, Value>, ) -> Pin<Box<dyn Future<Output = Result<Vec<Value>, FaucetError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, InstrumentedSource<'a, S>: 'async_trait,

Primary fetch method. Receives context from a parent source’s records.

fn fetch_with_context_incremental<'life0, 'life1, 'async_trait>( &'life0 self, context: &'life1 HashMap<String, Value>, ) -> Pin<Box<dyn Future<Output = Result<(Vec<Value>, Option<Value>), FaucetError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, InstrumentedSource<'a, S>: 'async_trait,

Incremental fetch with parent context support.

fn stream_pages<'b>( &'b self, context: &'b HashMap<String, Value>, batch_size: usize, ) -> Pin<Box<dyn Stream<Item = Result<StreamPage, FaucetError>> + Send + 'b>>

Stream records page-by-page so the pipeline can write to the sink as pages arrive instead of buffering the full result set.

fn fetch_all<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<Value>, FaucetError>> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

Convenience: fetch with no parent context.

fn fetch_all_incremental<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<(Vec<Value>, Option<Value>), FaucetError>> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

Convenience: incremental fetch with no parent context.

fn config_schema(&self) -> Value

Return a JSON Schema describing the configuration this source accepts.

fn check<'life0, 'life1, 'async_trait>( &'life0 self, ctx: &'life1 CheckContext, ) -> Pin<Box<dyn Future<Output = Result<CheckReport, FaucetError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, Self: 'async_trait,

Run a fast, non-mutating preflight probe (used by faucet doctor).