pulsar-binary-protocol-spec 0.0.1

Pulsar binary protocol specification
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
143
144
145
146
147
148
149
150
151
152
153
154
155
156

use std::collections::HashMap;

use crate::{
    client_channel_messages::{
        ConsumerSendHandlerChannelMessage, ProducerSendHandlerChannelMessage,
        SessionSendHandlerChannelMessage,
    },
    types::{ConsumerId, ProducerId, ProducerName},
};

use super::AC_Receiver;

pub type SessionReceiver = AC_Receiver<SessionSendHandlerChannelMessage>;
pub type ProducerReceiver = AC_Receiver<ProducerSendHandlerChannelMessage>;
pub type ConsumerReceiver = AC_Receiver<ConsumerSendHandlerChannelMessage>;

#[derive(Debug)]
pub struct HandlerChannelStorage(HashMap<HandlerChannelStorageKey, HandlerChannelStorageValue>);
impl HandlerChannelStorage {
    pub fn new(session_receiver: SessionReceiver) -> Self {
        let mut map = HashMap::new();
        map.insert(
            HandlerChannelStorageKey::Session,
            HandlerChannelStorageValue::Session(session_receiver),
        );
        Self(map)
    }

    pub fn del_session(&mut self) -> bool {
        self.0.remove(&HandlerChannelStorageKey::Session).is_some()
    }

    pub fn get_session(&self) -> Option<&SessionReceiver> {
        match self.0.get(&HandlerChannelStorageKey::Session) {
            Some(HandlerChannelStorageValue::Session(r)) => Some(r),
            _ => None,
        }
    }

    //
    pub fn add_producer(
        &mut self,
        producer_id: ProducerId,
        producer_name: ProducerName,
        receiver: ProducerReceiver,
    ) -> bool {
        self.0
            .insert(
                HandlerChannelStorageKey::Producer(producer_id),
                HandlerChannelStorageValue::Producer(producer_name, receiver),
            )
            .is_none()
    }

    pub fn del_producer(&mut self, producer_id: ProducerId) -> bool {
        self.0
            .remove(&HandlerChannelStorageKey::Producer(producer_id))
            .is_some()
    }

    pub fn get_producer(
        &self,
        producer_id: ProducerId,
    ) -> Option<(&ProducerName, &ProducerReceiver)> {
        match self.0.get(&HandlerChannelStorageKey::Producer(producer_id)) {
            Some(HandlerChannelStorageValue::Producer(producer_name, r)) => {
                Some((producer_name, r))
            }
            None => None,
            _ => unreachable!(),
        }
    }

    //
    pub fn add_consumer(&mut self, consumer_id: ConsumerId, receiver: ConsumerReceiver) -> bool {
        self.0
            .insert(
                HandlerChannelStorageKey::Consumer(consumer_id),
                HandlerChannelStorageValue::Consumer(receiver),
            )
            .is_none()
    }

    pub fn del_consumer(&mut self, consumer_id: ConsumerId) -> bool {
        self.0
            .remove(&HandlerChannelStorageKey::Consumer(consumer_id))
            .is_some()
    }

    pub fn get_consumer(&self, consumer_id: ConsumerId) -> Option<&ConsumerReceiver> {
        match self.0.get(&HandlerChannelStorageKey::Consumer(consumer_id)) {
            Some(HandlerChannelStorageValue::Consumer(r)) => Some(r),
            None => None,
            _ => unreachable!(),
        }
    }

    //
    pub fn items(&self) -> Vec<HandlerChannelStorageItem<'_>> {
        let mut items = vec![];

        for key in self.0.keys() {
            match key {
                HandlerChannelStorageKey::Session => {
                    if let Some(r) = self.get_session() {
                        items.push(HandlerChannelStorageItem::Session(r))
                    }
                }
                HandlerChannelStorageKey::Producer(producer_id) => {
                    if let Some((producer_name, r)) = self.get_producer(producer_id.to_owned()) {
                        items.push(HandlerChannelStorageItem::Producer(
                            producer_id.to_owned(),
                            producer_name,
                            r,
                        ))
                    } else {
                        unimplemented!()
                    }
                }
                HandlerChannelStorageKey::Consumer(consumer_id) => {
                    if let Some(r) = self.get_consumer(consumer_id.to_owned()) {
                        items.push(HandlerChannelStorageItem::Consumer(
                            consumer_id.to_owned(),
                            r,
                        ))
                    } else {
                        unimplemented!()
                    }
                }
            }
        }

        items
    }
}

#[derive(PartialEq, Eq, Hash, Debug, Clone)]
pub enum HandlerChannelStorageKey {
    Session,
    Producer(ProducerId),
    Consumer(ConsumerId),
}

#[derive(Debug)]
enum HandlerChannelStorageValue {
    Session(SessionReceiver),
    Producer(ProducerName, ProducerReceiver),
    Consumer(ConsumerReceiver),
}

#[derive(Debug)]
pub enum HandlerChannelStorageItem<'a> {
    Session(&'a SessionReceiver),
    Producer(ProducerId, &'a ProducerName, &'a ProducerReceiver),
    Consumer(ConsumerId, &'a ConsumerReceiver),
}