/
messages.rs
146 lines (130 loc) · 3.61 KB
/
messages.rs
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
use serde::Serialize;
use std::collections::HashMap;
pub type DefaultMetadata = HashMap<String, String>;
pub type DefaultLogMessage = LogMessage<DefaultMetadata>;
pub type DefaultLogMessageBuilder = LogMessageBuilder<DefaultMetadata>;
#[derive(Serialize)]
pub enum LogMessageId {
None,
Other(String),
}
#[derive(Serialize)]
pub struct LogMessage<Metadata: Serialize> {
id: LogMessageId,
level: log::Level,
#[serde(skip_serializing_if = "Vec::is_empty")]
tags: Vec<String>,
message: String,
timestamp: i64,
#[serde(skip_serializing_if = "Option::is_none")]
metadata: Option<Metadata>,
}
pub struct LogMessageBuilder<Metadata: Serialize> {
id: LogMessageId,
level: log::Level,
tags: Vec<String>,
message: Option<String>,
metadata: Option<Metadata>,
}
impl std::fmt::Display for LogMessageId {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", serde_json::to_string(self).unwrap())
}
}
impl<Metadata: Serialize> LogMessageBuilder<Metadata> {
pub fn new() -> Self {
Self {
id: LogMessageId::None,
level: log::Level::max(),
tags: vec![],
message: None,
metadata: None,
}
}
pub fn with_id(self, id: LogMessageId) -> Self {
Self {
id,
level: self.level,
tags: self.tags,
message: self.message,
metadata: self.metadata,
}
}
pub fn with_level(self, level: log::Level) -> Self {
Self {
id: self.id,
level,
tags: self.tags,
message: self.message,
metadata: self.metadata,
}
}
pub fn with_tags(self, tags: Vec<&str>) -> Self {
Self {
id: self.id,
level: self.level,
tags: tags.iter().map(|s| s.to_string()).collect(),
message: self.message,
metadata: self.metadata,
}
}
pub fn with_message(self, message: String) -> Self {
Self {
id: self.id,
level: self.level,
tags: self.tags,
message: Some(message),
metadata: self.metadata,
}
}
pub fn with_metadata(self, metadata: Metadata) -> Self {
Self {
id: self.id,
level: self.level,
tags: self.tags,
message: self.message,
metadata: Some(metadata),
}
}
pub fn build(self) -> LogMessage<Metadata> {
LogMessage {
id: self.id,
level: self.level,
tags: self.tags,
message: self.message.unwrap_or_default(),
timestamp: chrono::Utc::now().timestamp(),
metadata: self.metadata,
}
}
}
impl<Metadata: Serialize> Default for LogMessageBuilder<Metadata> {
fn default() -> Self {
Self::new()
}
}
impl<Metadata: Serialize> LogMessage<Metadata> {
pub fn new(
id: LogMessageId,
level: log::Level,
message: String,
tags: Vec<String>,
metadata: Metadata,
) -> Self {
Self {
id,
level,
tags,
message,
timestamp: chrono::Utc::now().timestamp(),
metadata: Some(metadata),
}
}
pub fn log(&self) {
log::log!(self.level, "{}", serde_json::to_string(self).unwrap())
}
}
impl<Metadata: Serialize> std::fmt::Display for LogMessage<Metadata> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{}", serde_json::to_string(self).unwrap())
}
}