graphile_worker_lifecycle_hooks 0.3.4

Lifecycle hooks for graphile_worker, a high performance Rust/PostgreSQL job queue
Documentation 
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use std::future::Future;

use futures::future::BoxFuture;

use crate::event::{Event, Interceptable};
use crate::events::Emittable;
use crate::plugin::Plugin;
use crate::TypeErasedHooks;

#[derive(Default)]
pub struct HookRegistry {
    pub(crate) inner: TypeErasedHooks,
}

impl HookRegistry {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn on<E, F, Fut>(&mut self, _event: E, handler: F) -> &mut Self
    where
        E: Event,
        F: Fn(E::Context) -> Fut + Send + Sync + Clone + 'static,
        Fut: Future<Output = E::Output> + Send + 'static,
    {
        let boxed: Box<dyn Fn(E::Context) -> BoxFuture<'static, E::Output> + Send + Sync> =
            Box::new(move |ctx| {
                let fut = handler(ctx);
                Box::pin(fut)
            });
        E::register_boxed(&mut self.inner, boxed);
        self
    }

    pub fn with_plugin<P: Plugin>(mut self, plugin: P) -> Self {
        plugin.register(&mut self);
        self
    }

    pub fn is_empty(&self) -> bool {
        self.inner.is_empty()
    }

    pub async fn emit<C: Emittable>(&self, ctx: C) {
        self.inner.emit(ctx).await
    }

    pub async fn intercept<C: Interceptable>(&self, ctx: C) -> C::Output {
        self.inner.intercept(ctx).await
    }
}