opendal_service_redis/
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
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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;
19
20use opendal_core::raw::*;
21use opendal_core::*;
22use serde::Deserialize;
23use serde::Serialize;
24
25use super::REDIS_SCHEME;
26use super::backend::RedisBuilder;
27
28/// Config for Redis services support.
29#[derive(Default, Serialize, Deserialize, Clone, PartialEq, Eq)]
30#[serde(default)]
31#[non_exhaustive]
32pub struct RedisConfig {
33    /// network address of the Redis service. Can be "tcp://127.0.0.1:6379", e.g.
34    ///
35    /// default is "tcp://127.0.0.1:6379"
36    pub endpoint: Option<String>,
37    /// network address of the Redis cluster service. Can be "tcp://127.0.0.1:6379,tcp://127.0.0.1:6380,tcp://127.0.0.1:6381", e.g.
38    ///
39    /// default is None
40    pub cluster_endpoints: Option<String>,
41    /// The maximum number of connections allowed.
42    ///
43    /// default is 10
44    pub connection_pool_max_size: Option<usize>,
45    /// the username to connect redis service.
46    ///
47    /// default is None
48    pub username: Option<String>,
49    /// the password for authentication
50    ///
51    /// default is None
52    pub password: Option<String>,
53    /// the working directory of the Redis service. Can be "/path/to/dir"
54    ///
55    /// default is "/"
56    pub root: Option<String>,
57    /// the number of DBs redis can take is unlimited
58    ///
59    /// default is db 0
60    pub db: i64,
61    /// The default ttl for put operations.
62    pub default_ttl: Option<Duration>,
63}
64
65impl Debug for RedisConfig {
66    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
67        f.debug_struct("RedisConfig")
68            .field("endpoint", &self.endpoint)
69            .field("cluster_endpoints", &self.cluster_endpoints)
70            .field("username", &self.username)
71            .field("root", &self.root)
72            .field("db", &self.db)
73            .field("default_ttl", &self.default_ttl)
74            .finish_non_exhaustive()
75    }
76}
77
78impl Configurator for RedisConfig {
79    type Builder = RedisBuilder;
80
81    fn from_uri(uri: &OperatorUri) -> Result<Self> {
82        let mut map = uri.options().clone();
83
84        if let Some(authority) = uri.authority() {
85            map.entry("endpoint".to_string())
86                .or_insert_with(|| format!("redis://{authority}"));
87        } else if !map.contains_key("endpoint") && !map.contains_key("cluster_endpoints") {
88            return Err(Error::new(
89                ErrorKind::ConfigInvalid,
90                "endpoint or cluster_endpoints is required",
91            )
92            .with_context("service", REDIS_SCHEME));
93        }
94
95        if let Some(path) = uri.root()
96            && !path.is_empty()
97        {
98            if let Some((first, rest)) = path.split_once('/') {
99                if let Ok(db) = first.parse::<i64>() {
100                    map.insert("db".to_string(), db.to_string());
101                    if !rest.is_empty() {
102                        map.insert("root".to_string(), rest.to_string());
103                    }
104                } else {
105                    let mut root_value = first.to_string();
106                    if !rest.is_empty() {
107                        root_value.push('/');
108                        root_value.push_str(rest);
109                    }
110                    map.insert("root".to_string(), root_value);
111                }
112            } else if let Ok(db) = path.parse::<i64>() {
113                map.insert("db".to_string(), db.to_string());
114            } else {
115                map.insert("root".to_string(), path.to_string());
116            }
117        }
118
119        Self::from_iter(map)
120    }
121
122    fn into_builder(self) -> Self::Builder {
123        RedisBuilder { config: self }
124    }
125}
126
127#[cfg(test)]
128mod tests {
129    use super::*;
130
131    #[test]
132    fn from_uri_sets_endpoint_db_and_root() -> Result<()> {
133        let uri = OperatorUri::new(
134            "redis://localhost:6379/2/cache",
135            Vec::<(String, String)>::new(),
136        )?;
137
138        let cfg = RedisConfig::from_uri(&uri)?;
139        assert_eq!(cfg.endpoint.as_deref(), Some("redis://localhost:6379"));
140        assert_eq!(cfg.db, 2);
141        assert_eq!(cfg.root.as_deref(), Some("cache"));
142        Ok(())
143    }
144
145    #[test]
146    fn from_uri_treats_non_numeric_path_as_root() -> Result<()> {
147        let uri = OperatorUri::new(
148            "redis://localhost:6379/app/data",
149            Vec::<(String, String)>::new(),
150        )?;
151
152        let cfg = RedisConfig::from_uri(&uri)?;
153        assert_eq!(cfg.endpoint.as_deref(), Some("redis://localhost:6379"));
154        assert_eq!(cfg.db, 0);
155        assert_eq!(cfg.root.as_deref(), Some("app/data"));
156        Ok(())
157    }
158
159    #[test]
160    fn test_redis_builder_interface() {
161        // Test that RedisBuilder still works with the new implementation
162        let builder = RedisBuilder::default()
163            .endpoint("redis://localhost:6379")
164            .username("testuser")
165            .password("testpass")
166            .db(1)
167            .root("/test");
168
169        // The builder should be able to create configuration
170        assert!(builder.config.endpoint.is_some());
171        assert_eq!(
172            builder.config.endpoint.as_ref().unwrap(),
173            "redis://localhost:6379"
174        );
175        assert_eq!(builder.config.username.as_ref().unwrap(), "testuser");
176        assert_eq!(builder.config.password.as_ref().unwrap(), "testpass");
177        assert_eq!(builder.config.db, 1);
178        assert_eq!(builder.config.root.as_ref().unwrap(), "/test");
179    }
180}
opendal_service_redis/config.rs

opendal_service_redis/
config.rs
