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ListenerPipelines

Struct ListenerPipelines 

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pub struct ListenerPipelines { /* private fields */ }
Expand description

Maps listener names to their resolved FilterPipelines.

Each pipeline is wrapped in ArcSwap so it can be atomically replaced at runtime without blocking in-flight requests.

use std::{collections::HashMap, sync::Arc};

use praxis_filter::{FilterPipeline, FilterRegistry};
use praxis_protocol::ListenerPipelines;

let registry = FilterRegistry::with_builtins();
let pipeline = Arc::new(FilterPipeline::build(&mut [], &registry).unwrap());

let mut map = HashMap::new();
map.insert("web".to_owned(), pipeline);
let pipelines = ListenerPipelines::new(map);

assert!(pipelines.get("web").is_some());
assert!(pipelines.get("missing").is_none());

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impl ListenerPipelines

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pub fn new(pipelines: HashMap<String, Arc<FilterPipeline>>) -> Self

Create from a map of listener name to pipeline.

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pub fn get(&self, listener_name: &str) -> Option<&Arc<ArcSwap<FilterPipeline>>>

Get the swappable pipeline for a listener by name.

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pub fn swap(&self, listener_name: &str, new_pipeline: Arc<FilterPipeline>)

Atomically replace the pipeline for a listener.

No-op if the listener name is not present.

use std::{collections::HashMap, sync::Arc};

use praxis_filter::{FilterPipeline, FilterRegistry};
use praxis_protocol::ListenerPipelines;

let registry = FilterRegistry::with_builtins();
let old = Arc::new(FilterPipeline::build(&mut [], &registry).unwrap());
let new = Arc::new(FilterPipeline::build(&mut [], &registry).unwrap());

let mut map = HashMap::new();
map.insert("web".to_owned(), old);
let pipelines = ListenerPipelines::new(map);

pipelines.swap("web", new);
pipelines.swap(
    "nonexistent",
    Arc::new(FilterPipeline::build(&mut [], &registry).unwrap()),
);
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pub fn referenced_files(&self) -> Vec<PathBuf>

Every filesystem path any filter in any listener’s pipeline reads configuration from, de-duplicated.

Two listeners can share a filter chain, so the same document would otherwise appear more than once and be watched and hashed repeatedly.

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pub fn listener_names(&self) -> impl Iterator<Item = &str>

Returns an iterator over listener names.

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