hyperstack-sdk 0.3.14

Rust SDK client for connecting to HyperStack streaming servers
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
134
135
136
137
138
139
140
141
142

use serde::{Deserialize, Serialize};
use std::collections::HashMap;

#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(tag = "type", rename_all = "lowercase")]
pub enum ClientMessage {
    Subscribe(Subscription),
    Unsubscribe(Unsubscription),
    Ping,
}

#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
pub struct Subscription {
    pub view: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub key: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub partition: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub filters: Option<HashMap<String, String>>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub take: Option<u32>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub skip: Option<u32>,
}

#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]
pub struct Unsubscription {
    pub view: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub key: Option<String>,
}

impl Unsubscription {
    pub fn new(view: impl Into<String>) -> Self {
        Self {
            view: view.into(),
            key: None,
        }
    }

    pub fn with_key(mut self, key: impl Into<String>) -> Self {
        self.key = Some(key.into());
        self
    }

    pub fn sub_key(&self) -> String {
        format!("{}:{}", self.view, self.key.as_deref().unwrap_or("*"),)
    }
}

impl From<&Subscription> for Unsubscription {
    fn from(sub: &Subscription) -> Self {
        Self {
            view: sub.view.clone(),
            key: sub.key.clone(),
        }
    }
}

impl Subscription {
    pub fn new(view: impl Into<String>) -> Self {
        Self {
            view: view.into(),
            key: None,
            partition: None,
            filters: None,
            take: None,
            skip: None,
        }
    }

    pub fn with_key(mut self, key: impl Into<String>) -> Self {
        self.key = Some(key.into());
        self
    }

    pub fn with_filters(mut self, filters: HashMap<String, String>) -> Self {
        self.filters = Some(filters);
        self
    }

    pub fn with_take(mut self, take: u32) -> Self {
        self.take = Some(take);
        self
    }

    pub fn with_skip(mut self, skip: u32) -> Self {
        self.skip = Some(skip);
        self
    }

    pub fn sub_key(&self) -> String {
        let filters_str = self
            .filters
            .as_ref()
            .map(|f| serde_json::to_string(f).unwrap_or_default())
            .unwrap_or_default();
        format!(
            "{}:{}:{}:{}",
            self.view,
            self.key.as_deref().unwrap_or("*"),
            self.partition.as_deref().unwrap_or(""),
            filters_str
        )
    }
}

#[derive(Debug, Default)]
pub struct SubscriptionRegistry {
    subscriptions: HashMap<String, Subscription>,
}

impl SubscriptionRegistry {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn add(&mut self, sub: Subscription) {
        let key = sub.sub_key();
        self.subscriptions.insert(key, sub);
    }

    pub fn remove(&mut self, sub: &Subscription) {
        let key = sub.sub_key();
        self.subscriptions.remove(&key);
    }

    pub fn contains(&self, sub: &Subscription) -> bool {
        let key = sub.sub_key();
        self.subscriptions.contains_key(&key)
    }

    pub fn all(&self) -> Vec<Subscription> {
        self.subscriptions.values().cloned().collect()
    }

    #[allow(dead_code)]
    pub fn clear(&mut self) {
        self.subscriptions.clear();
    }
}