salak_factory 0.1.4

Salak factory to package initialization.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133

use super::*;
use ::redis::cluster::*;
use ::redis::*;
use std::str::FromStr;

/// Redis Connection Pool Configuration.
///
/// |property|required|default|
/// |-|-|-|
/// |redis_cluster.url|true||
/// |redis_cluster.password|false||
/// |redis_cluster.readonly|false||
/// |redis_cluster.read_timeout|false||
/// |redis_cluster.write_timeout|false||
/// |redis_cluster.auto_reconnect|false||
/// |redis_cluster.pool.max_size|false|${pool.max_size:}|
/// |redis_cluster.pool.min_idle|false|${pool.min_idle:}|
/// |redis_cluster.pool.thread_name|false|${pool.thread_name:}|
/// |redis_cluster.pool.thread_nums|false|${pool.thread_nums:}|
/// |redis_cluster.pool.test_on_check_out|false|${pool.test_on_check_out:}|
/// |redis_cluster.pool.max_lifetime|false|${pool.max_lifetime:}|
/// |redis_cluster.pool.idle_timeout|false|${pool.idle_timeout:}|
/// |redis_cluster.pool.connection_timeout|false|${pool.connection_timeout:5s}|
/// |redis_cluster.pool.wait_for_init|false|${pool.wait_for_init:false}|
#[cfg_attr(docsrs, doc(cfg(feature = "enable_redis_cluster")))]
#[derive(FromEnvironment, Debug)]
pub struct RedisClusterConfig {
    #[salak(required = true)]
    url: Vec<String>,
    password: Option<String>,
    readonly: Option<bool>,
    read_timeout: Option<Duration>,
    write_timeout: Option<Duration>,
    auto_reconnect: Option<bool>,
    pool: PoolConfig,
}

/// Redis connection manager
#[cfg_attr(docsrs, doc(cfg(feature = "enable_redis_cluster")))]
#[allow(missing_debug_implementations)]
pub struct RedisClusterConnectionManager {
    client: ClusterClient,
    read_timeout: Option<Duration>,
    write_timeout: Option<Duration>,
    auto_reconnect: Option<bool>,
}

impl ManageConnection for RedisClusterConnectionManager {
    type Connection = ClusterConnection;
    type Error = RedisError;

    fn connect(&self) -> Result<Self::Connection, Self::Error> {
        let conn = self.client.get_connection()?;
        if let Some(auto_reconnect) = self.auto_reconnect {
            conn.set_auto_reconnect(auto_reconnect);
        }
        conn.set_read_timeout(self.read_timeout)?;
        conn.set_write_timeout(self.write_timeout)?;
        Ok(conn)
    }

    fn is_valid(&self, conn: &mut Self::Connection) -> Result<(), Self::Error> {
        cmd("PING").query(conn)
    }

    fn has_broken(&self, conn: &mut Self::Connection) -> bool {
        !conn.check_connection()
    }
}

impl Buildable for RedisClusterConfig {
    type Product = Pool<RedisClusterConnectionManager>;
    type Customizer = PoolCustomizer<RedisClusterConnectionManager>;

    fn prefix() -> &'static str {
        "redis_cluster"
    }

    fn build_with_key(
        self,
        _: &impl Environment,
        customizer: Self::Customizer,
    ) -> Result<Self::Product, PropertyError> {
        let mut config = vec![];
        for url in self.url {
            config.push(
                ConnectionInfo::from_str(&url)
                    .map_err(|e| PropertyError::ParseFail(format!("{}", e)))?,
            )
        }
        if config.is_empty() {
            return Err(PropertyError::ParseFail(format!(
                "{}.url not set",
                Self::prefix()
            )));
        }
        let mut builder = ClusterClientBuilder::new(config);
        if let Some(password) = self.password {
            builder = builder.password(password);
        }
        if let Some(readonly) = self.readonly {
            builder = builder.readonly(readonly);
        }
        let client = builder
            .open()
            .map_err(|e| PropertyError::ParseFail(format!("{}", e)))?;

        self.pool.build_pool(
            RedisClusterConnectionManager {
                client,
                read_timeout: self.read_timeout,
                write_timeout: self.write_timeout,
                auto_reconnect: self.auto_reconnect,
            },
            customizer,
        )
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn redis_tests() {
        let env = Salak::new()
            .set_property("redis_cluster.url[0]", "redis://127.0.0.1/")
            .build();
        let pool = env.build::<RedisClusterConfig>();
        assert_eq!(true, pool.is_ok());

        print_keys::<RedisClusterConfig>();
    }
}