58 lines
1.3 KiB
Rust
58 lines
1.3 KiB
Rust
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use std::borrow::Cow;
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use async_trait::async_trait;
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#[derive(Debug, thiserror::Error)]
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pub enum Error {
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#[error("Unable to connect")]
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Connect,
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#[error("Entry is invalid")]
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InvalidEntry,
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#[error("Can't invalidate keys {0:?}")]
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Invalidate(Vec<String>),
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#[error("Failed to parse config")]
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InvalidConfig,
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}
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pub type CResult<T> = Result<T, Error>;
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pub struct Config(pub String);
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impl Config {
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pub fn config<S: serde::de::DeserializeOwned>(self) -> Result<S, toml::de::Error> {
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toml::from_str(&self.0)
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}
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}
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#[derive(Debug)]
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pub enum InvalidatePattern<'s> {
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StartsWith(Cow<'s, str>),
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EndsWith(Cow<'s, str>),
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Contains(Cow<'s, str>),
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Const(Cow<'s, str>),
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}
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#[async_trait]
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pub trait CacheAdapter: Sized {
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async fn new(config: Config) -> CResult<Self>;
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async fn read<T>(&mut self, key: &str) -> CResult<Option<T>>
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where
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T: serde::de::DeserializeOwned;
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async fn set<T>(
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&mut self,
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key: &str,
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data: T,
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expires_in: Option<std::time::Duration>,
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) -> CResult<()>
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where
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T: serde::Serialize + Send;
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async fn invalidate(&mut self, pattern: InvalidatePattern<'_>) -> CResult<u64>;
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async fn clear(&mut self) -> CResult<u64>;
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}
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pub struct CacheStorage {}
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