aldrin-core 0.13.0

Shared core components of Aldrin, a message bus for service-oriented RPC and interprocess communication.
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
157
158
159
160
161

#[cfg(test)]
mod test_old1;

use crate::tags::{self, PrimaryTag, Tag};
use crate::{
    Deserialize, DeserializeError, Deserializer, Serialize, SerializeError, Serializer, TypeId,
};
use num_enum::{IntoPrimitive, TryFromPrimitive};

#[derive(IntoPrimitive, TryFromPrimitive)]
#[repr(u32)]
enum ServiceInfoField {
    Version = 0,
    TypeId = 1,
    SubscribeAll = 2,
}

#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub struct ServiceInfo {
    version: u32,
    type_id: Option<TypeId>,
    subscribe_all: Option<bool>,
}

impl ServiceInfo {
    pub fn new(version: u32) -> Self {
        Self {
            version,
            type_id: None,
            subscribe_all: None,
        }
    }

    pub fn version(self) -> u32 {
        self.version
    }

    #[must_use = "this method follows the builder pattern and returns a new `ServiceInfo`"]
    pub fn set_version(mut self, version: u32) -> Self {
        self.version = version;
        self
    }

    pub fn type_id(self) -> Option<TypeId> {
        self.type_id
    }

    #[must_use = "this method follows the builder pattern and returns a new `ServiceInfo`"]
    pub fn set_type_id(mut self, type_id: TypeId) -> Self {
        self.type_id = Some(type_id);
        self
    }

    pub fn subscribe_all(self) -> Option<bool> {
        self.subscribe_all
    }

    #[must_use = "this method follows the builder pattern and returns a new `ServiceInfo`"]
    pub fn set_subscribe_all(mut self, subscribe_all: bool) -> Self {
        self.subscribe_all = Some(subscribe_all);
        self
    }
}

impl Tag for ServiceInfo {}

impl PrimaryTag for ServiceInfo {
    type Tag = Self;
}

impl Serialize<Self> for ServiceInfo {
    fn serialize(self, serializer: Serializer) -> Result<(), SerializeError> {
        let mut serializer = serializer.serialize_struct2()?;

        serializer.serialize::<tags::U32>(ServiceInfoField::Version, self.version)?;

        serializer
            .serialize_if_some::<tags::Option<TypeId>>(ServiceInfoField::TypeId, self.type_id)?;

        serializer.serialize_if_some::<tags::Option<tags::Bool>>(
            ServiceInfoField::SubscribeAll,
            self.subscribe_all,
        )?;

        serializer.finish()
    }
}

impl Serialize<ServiceInfo> for &ServiceInfo {
    fn serialize(self, serializer: Serializer) -> Result<(), SerializeError> {
        serializer.serialize(*self)
    }
}

impl Deserialize<Self> for ServiceInfo {
    fn deserialize(deserializer: Deserializer) -> Result<Self, DeserializeError> {
        let mut deserializer = deserializer.deserialize_struct()?;

        let mut version = None;
        let mut type_id = None;
        let mut subscribe_all = None;

        while let Some(deserializer) = deserializer.deserialize()? {
            match deserializer.try_id() {
                Ok(ServiceInfoField::Version) => {
                    version = deserializer.deserialize::<tags::U32, _>().map(Some)?
                }

                Ok(ServiceInfoField::TypeId) => {
                    type_id = deserializer.deserialize::<tags::Option<TypeId>, _>()?
                }

                Ok(ServiceInfoField::SubscribeAll) => {
                    subscribe_all = deserializer.deserialize::<tags::Option<tags::Bool>, _>()?
                }

                Err(_) => deserializer.skip()?,
            }
        }

        deserializer.finish_with(|_| {
            Ok(Self {
                version: version.ok_or(DeserializeError::InvalidSerialization)?,
                type_id,
                subscribe_all,
            })
        })
    }
}

#[cfg(test)]
mod test {
    use super::ServiceInfo;
    use crate::{SerializedValue, TypeId};
    use uuid::uuid;

    fn serde(info: ServiceInfo) -> ServiceInfo {
        SerializedValue::serialize(info)
            .unwrap()
            .deserialize()
            .unwrap()
    }

    #[test]
    fn serialize() {
        let info = ServiceInfo::new(1);
        assert_eq!(info, serde(info));

        let info =
            ServiceInfo::new(1).set_type_id(TypeId(uuid!("88e82fb9-03b2-4f51-94d8-4702cfacc90c")));
        assert_eq!(info, serde(info));

        let info = ServiceInfo::new(1).set_subscribe_all(true);
        assert_eq!(info, serde(info));

        let info = ServiceInfo::new(1)
            .set_type_id(TypeId(uuid!("88e82fb9-03b2-4f51-94d8-4702cfacc90c")))
            .set_subscribe_all(true);
        assert_eq!(info, serde(info));
    }
}