feat: move persistence to another file

Signed-off-by: kjuulh <contact@kjuulh.io>
This commit is contained in:
Kasper Juul Hermansen 2023-10-02 22:02:03 +02:00
parent dc2ac94345
commit c3ab28a4de
Signed by: kjuulh
GPG Key ID: 57B6E1465221F912
4 changed files with 5 additions and 104 deletions

4
Cargo.lock generated
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@ -619,6 +619,10 @@ dependencies = [
"tracing", "tracing",
] ]
[[package]]
name = "crunch-postgres"
version = "0.1.0"
[[package]] [[package]]
name = "crunch-traits" name = "crunch-traits"
version = "0.1.0" version = "0.1.0"

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@ -1,92 +1,2 @@
pub mod persistence;
pub mod transport; pub mod transport;
pub mod persistence {
use std::{
collections::{BTreeMap, VecDeque},
sync::Arc,
};
use async_trait::async_trait;
use crunch_traits::{errors::PersistenceError, EventInfo};
use tokio::sync::RwLock;
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
enum MsgState {
Pending,
Published,
}
#[derive(Debug, Clone)]
pub struct Msg {
id: String,
info: EventInfo,
msg: Vec<u8>,
state: MsgState,
}
pub struct InMemoryPersistence {
pub outbox: Arc<RwLock<VecDeque<Msg>>>,
pub store: Arc<RwLock<BTreeMap<String, Msg>>>,
}
#[async_trait]
impl crunch_traits::Persistence for InMemoryPersistence {
async fn insert(&self, event_info: &EventInfo, content: Vec<u8>) -> anyhow::Result<()> {
let msg =
crunch_envelope::proto::wrap(event_info.domain, event_info.entity_type, &content);
let msg = Msg {
id: uuid::Uuid::new_v4().to_string(),
info: *event_info,
msg,
state: MsgState::Pending,
};
let mut outbox = self.outbox.write().await;
outbox.push_back(msg.clone());
self.store.write().await.insert(msg.id.clone(), msg);
tracing::debug!(
event_info = event_info.to_string(),
content_len = content.len(),
"inserted event"
);
Ok(())
}
async fn next(&self) -> Option<String> {
let mut outbox = self.outbox.write().await;
outbox.pop_front().map(|i| i.id)
}
async fn get(
&self,
event_id: &str,
) -> Result<Option<(EventInfo, Vec<u8>)>, PersistenceError> {
let store = self.store.read().await;
let event = match store.get(event_id).filter(|m| m.state == MsgState::Pending) {
Some(event) => event,
None => return Ok(None),
};
let (content, _) = crunch_envelope::proto::unwrap(event.msg.as_slice())
.map_err(|e| PersistenceError::GetErr(anyhow::anyhow!(e)))?;
Ok(Some((event.info, content)))
}
async fn update_published(&self, event_id: &str) -> Result<(), PersistenceError> {
match self.store.write().await.get_mut(event_id) {
Some(msg) => msg.state = MsgState::Published,
None => {
return Err(PersistenceError::UpdatePublished(anyhow::anyhow!(
"event was not found on id: {}",
event_id
)))
}
}
Ok(())
}
}
}

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@ -1,14 +1 @@
pub fn add(left: usize, right: usize) -> usize {
left + right
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn it_works() {
let result = add(2, 2);
assert_eq!(result, 4);
}
}