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
|
use chrono::{DateTime, Local, NaiveDate, NaiveDateTime};
use std::time::SystemTime;
/// Filter based on time ranges.
#[derive(Debug, PartialEq, Eq)]
pub enum TimeFilter {
Before(SystemTime),
After(SystemTime),
}
impl TimeFilter {
fn from_str(ref_time: &SystemTime, s: &str) -> Option<SystemTime> {
humantime::parse_duration(s)
.map(|duration| *ref_time - duration)
.ok()
.or_else(|| {
DateTime::parse_from_rfc3339(s)
.map(|dt| dt.into())
.ok()
.or_else(|| {
NaiveDate::parse_from_str(s, "%F")
.ok()?
.and_hms_opt(0, 0, 0)?
.and_local_timezone(Local)
.latest()
})
.or_else(|| {
NaiveDateTime::parse_from_str(s, "%F %T")
.ok()?
.and_local_timezone(Local)
.latest()
})
.map(|dt| dt.into())
})
}
pub fn before(ref_time: &SystemTime, s: &str) -> Option<TimeFilter> {
TimeFilter::from_str(ref_time, s).map(TimeFilter::Before)
}
pub fn after(ref_time: &SystemTime, s: &str) -> Option<TimeFilter> {
TimeFilter::from_str(ref_time, s).map(TimeFilter::After)
}
pub fn applies_to(&self, t: &SystemTime) -> bool {
match self {
TimeFilter::Before(limit) => t < limit,
TimeFilter::After(limit) => t > limit,
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::time::Duration;
#[test]
fn is_time_filter_applicable() {
let ref_time = NaiveDateTime::parse_from_str("2010-10-10 10:10:10", "%F %T")
.unwrap()
.and_local_timezone(Local)
.latest()
.unwrap()
.into();
assert!(TimeFilter::after(&ref_time, "1min")
.unwrap()
.applies_to(&ref_time));
assert!(!TimeFilter::before(&ref_time, "1min")
.unwrap()
.applies_to(&ref_time));
let t1m_ago = ref_time - Duration::from_secs(60);
assert!(!TimeFilter::after(&ref_time, "30sec")
.unwrap()
.applies_to(&t1m_ago));
assert!(TimeFilter::after(&ref_time, "2min")
.unwrap()
.applies_to(&t1m_ago));
assert!(TimeFilter::before(&ref_time, "30sec")
.unwrap()
.applies_to(&t1m_ago));
assert!(!TimeFilter::before(&ref_time, "2min")
.unwrap()
.applies_to(&t1m_ago));
let t10s_before = "2010-10-10 10:10:00";
assert!(!TimeFilter::before(&ref_time, t10s_before)
.unwrap()
.applies_to(&ref_time));
assert!(TimeFilter::before(&ref_time, t10s_before)
.unwrap()
.applies_to(&t1m_ago));
assert!(TimeFilter::after(&ref_time, t10s_before)
.unwrap()
.applies_to(&ref_time));
assert!(!TimeFilter::after(&ref_time, t10s_before)
.unwrap()
.applies_to(&t1m_ago));
let same_day = "2010-10-10";
assert!(!TimeFilter::before(&ref_time, same_day)
.unwrap()
.applies_to(&ref_time));
assert!(!TimeFilter::before(&ref_time, same_day)
.unwrap()
.applies_to(&t1m_ago));
assert!(TimeFilter::after(&ref_time, same_day)
.unwrap()
.applies_to(&ref_time));
assert!(TimeFilter::after(&ref_time, same_day)
.unwrap()
.applies_to(&t1m_ago));
let ref_time = DateTime::parse_from_rfc3339("2010-10-10T10:10:10+00:00")
.unwrap()
.into();
let t1m_ago = ref_time - Duration::from_secs(60);
let t10s_before = "2010-10-10T10:10:00+00:00";
assert!(!TimeFilter::before(&ref_time, t10s_before)
.unwrap()
.applies_to(&ref_time));
assert!(TimeFilter::before(&ref_time, t10s_before)
.unwrap()
.applies_to(&t1m_ago));
assert!(TimeFilter::after(&ref_time, t10s_before)
.unwrap()
.applies_to(&ref_time));
assert!(!TimeFilter::after(&ref_time, t10s_before)
.unwrap()
.applies_to(&t1m_ago));
}
}
|
