pub struct JsonStorageLayer;
Expand description
This layer is only concerned with information storage, it does not do any formatting or provide any output.
It’s purpose is to store the fields associated to spans in an easy-to-consume format for downstream layers concerned with emitting a formatted representation of spans or events.
Trait Implementations
sourceimpl Clone for JsonStorageLayer
impl Clone for JsonStorageLayer
sourcefn clone(&self) -> JsonStorageLayer
fn clone(&self) -> JsonStorageLayer
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresourceimpl Debug for JsonStorageLayer
impl Debug for JsonStorageLayer
sourceimpl<S: Subscriber + for<'a> LookupSpan<'a>> Layer<S> for JsonStorageLayer
impl<S: Subscriber + for<'a> LookupSpan<'a>> Layer<S> for JsonStorageLayer
sourcefn on_new_span(&self, attrs: &Attributes<'_>, id: &Id, ctx: Context<'_, S>)
fn on_new_span(&self, attrs: &Attributes<'_>, id: &Id, ctx: Context<'_, S>)
Span creation. This is the only occasion we have to store the fields attached to the span given that they might have been borrowed from the surrounding context.
sourcefn on_enter(&self, span: &Id, ctx: Context<'_, S>)
fn on_enter(&self, span: &Id, ctx: Context<'_, S>)
When we enter a span for the first time save the timestamp in its extensions.
sourcefn on_close(&self, span: Id, ctx: Context<'_, S>)
fn on_close(&self, span: Id, ctx: Context<'_, S>)
When we close a span, register how long it took in milliseconds.
sourcefn on_register_dispatch(&self, collector: &Dispatch)
fn on_register_dispatch(&self, collector: &Dispatch)
Performs late initialization when installing this layer as a
Subscriber
. Read moresourcefn register_callsite(&self, metadata: &'static Metadata<'static>) -> Interest
fn register_callsite(&self, metadata: &'static Metadata<'static>) -> Interest
Registers a new callsite with this layer, returning whether or not
the layer is interested in being notified about the callsite, similarly
to
Subscriber::register_callsite
. Read moresourcefn enabled(&self, metadata: &Metadata<'_>, ctx: Context<'_, S>) -> bool
fn enabled(&self, metadata: &Metadata<'_>, ctx: Context<'_, S>) -> bool
Returns
true
if this layer is interested in a span or event with the
given metadata
in the current Context
, similarly to
Subscriber::enabled
. Read moresourcefn on_follows_from(&self, _span: &Id, _follows: &Id, _ctx: Context<'_, S>)
fn on_follows_from(&self, _span: &Id, _follows: &Id, _ctx: Context<'_, S>)
Notifies this layer that a span with the ID
span
recorded that it
follows from the span with the ID follows
. Read moresourcefn event_enabled(&self, _event: &Event<'_>, _ctx: Context<'_, S>) -> bool
fn event_enabled(&self, _event: &Event<'_>, _ctx: Context<'_, S>) -> bool
sourcefn on_event(&self, _event: &Event<'_>, _ctx: Context<'_, S>)
fn on_event(&self, _event: &Event<'_>, _ctx: Context<'_, S>)
Notifies this layer that an event has occurred.
sourcefn on_exit(&self, _id: &Id, _ctx: Context<'_, S>)
fn on_exit(&self, _id: &Id, _ctx: Context<'_, S>)
Notifies this layer that the span with the given ID was exited.
sourcefn on_id_change(&self, _old: &Id, _new: &Id, _ctx: Context<'_, S>)
fn on_id_change(&self, _old: &Id, _new: &Id, _ctx: Context<'_, S>)
Notifies this layer that a span ID has been cloned, and that the
subscriber returned a different ID. Read more
sourcefn and_then<L>(self, layer: L) -> Layered<L, Self, S>where
L: Layer<S>,
fn and_then<L>(self, layer: L) -> Layered<L, Self, S>where
L: Layer<S>,
Composes this layer around the given
Layer
, returning a Layered
struct implementing Layer
. Read moresourcefn with_subscriber(self, inner: S) -> Layered<Self, S, S>
fn with_subscriber(self, inner: S) -> Layered<Self, S, S>
Composes this
Layer
with the given Subscriber
, returning a
Layered
struct that implements Subscriber
. Read moresourcefn with_filter<F>(self, filter: F) -> Filtered<Self, F, S>where
F: Filter<S>,
fn with_filter<F>(self, filter: F) -> Filtered<Self, F, S>where
F: Filter<S>,
Auto Trait Implementations
impl RefUnwindSafe for JsonStorageLayer
impl Send for JsonStorageLayer
impl Sync for JsonStorageLayer
impl Unpin for JsonStorageLayer
impl UnwindSafe for JsonStorageLayer
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more