opendal/services/mini_moka/config.rs
1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements. See the NOTICE file
3// distributed with this work for additional information
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5// to you under the Apache License, Version 2.0 (the
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8//
9// http://www.apache.org/licenses/LICENSE-2.0
10//
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12// software distributed under the License is distributed on an
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14// KIND, either express or implied. See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use std::fmt::Debug;
19use std::fmt::Formatter;
20
21use super::backend::MiniMokaBuilder;
22use serde::Deserialize;
23use serde::Serialize;
24
25/// Config for mini-moka support.
26#[derive(Default, Serialize, Deserialize, Clone, PartialEq, Eq)]
27#[serde(default)]
28#[non_exhaustive]
29pub struct MiniMokaConfig {
30 /// Sets the max capacity of the cache.
31 ///
32 /// Refer to [`mini-moka::sync::CacheBuilder::max_capacity`](https://docs.rs/mini-moka/latest/mini_moka/sync/struct.CacheBuilder.html#method.max_capacity)
33 pub max_capacity: Option<u64>,
34 /// Sets the time to live of the cache.
35 ///
36 /// Refer to [`mini-moka::sync::CacheBuilder::time_to_live`](https://docs.rs/mini-moka/latest/mini_moka/sync/struct.CacheBuilder.html#method.time_to_live)
37 pub time_to_live: Option<String>,
38 /// Sets the time to idle of the cache.
39 ///
40 /// Refer to [`mini-moka::sync::CacheBuilder::time_to_idle`](https://docs.rs/mini-moka/latest/mini_moka/sync/struct.CacheBuilder.html#method.time_to_idle)
41 pub time_to_idle: Option<String>,
42
43 /// root path of this backend
44 pub root: Option<String>,
45}
46
47impl Debug for MiniMokaConfig {
48 fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
49 f.debug_struct("MiniMokaConfig")
50 .field("max_capacity", &self.max_capacity)
51 .field("time_to_live", &self.time_to_live)
52 .field("time_to_idle", &self.time_to_idle)
53 .field("root", &self.root)
54 .finish()
55 }
56}
57
58impl crate::Configurator for MiniMokaConfig {
59 type Builder = MiniMokaBuilder;
60
61 fn from_uri(uri: &crate::types::OperatorUri) -> crate::Result<Self> {
62 let mut map = uri.options().clone();
63
64 if let Some(root) = uri.root() {
65 if !root.is_empty() {
66 map.insert("root".to_string(), root.to_string());
67 }
68 }
69
70 Self::from_iter(map)
71 }
72
73 fn into_builder(self) -> Self::Builder {
74 MiniMokaBuilder { config: self }
75 }
76}
77
78#[cfg(test)]
79mod tests {
80 use super::*;
81 use crate::Configurator;
82 use crate::types::OperatorUri;
83
84 #[test]
85 fn from_uri_sets_root_and_preserves_ttl() {
86 let uri = OperatorUri::new(
87 "mini-moka:///session",
88 vec![("time_to_live".to_string(), "300s".to_string())],
89 )
90 .unwrap();
91
92 let cfg = MiniMokaConfig::from_uri(&uri).unwrap();
93 assert_eq!(cfg.root.as_deref(), Some("session"));
94 assert!(cfg.time_to_live.is_some());
95 }
96}