vkopt_message_parser/
filter.rs

1use crate::reader::MessageEvent;
2use chrono::NaiveDateTime;
3use std::collections::BTreeSet;
4
5#[derive(Default)]
6pub struct Filter<'a> {
7    pub since_date: Option<NaiveDateTime>,
8    pub short_name_whitelist: Option<BTreeSet<&'a str>>,
9    pub short_name_blacklist: Option<BTreeSet<&'a str>>,
10}
11
12impl<'a> Filter<'a> {
13    pub fn filter_event<'e>(&self, event: MessageEvent<'e>) -> Option<MessageEvent<'e>> {
14        match event {
15            MessageEvent::ShortNameExtracted(name) if short_name_passes(self, name) => Some(event),
16            MessageEvent::ShortNameExtracted(_) => None,
17            MessageEvent::DateExtracted(date) if date_passes(self, date) => Some(event),
18            MessageEvent::DateExtracted(_) => None,
19            _ => Some(event),
20        }
21    }
22}
23
24fn short_name_passes<'a>(filter: &Filter<'a>, short_name: &'a str) -> bool {
25    if let Some(ref whitelist) = filter.short_name_whitelist {
26        whitelist.contains(short_name)
27    }
28    else if let Some(ref blacklist) = filter.short_name_blacklist {
29        !blacklist.contains(short_name)
30    }
31    else {
32        true
33    }
34}
35
36fn date_passes<'a>(filter: &Filter<'a>, date: &'a str) -> bool {
37    if let Some(ref since_date) = filter.since_date {
38        let msg_date = NaiveDateTime::parse_from_str(date, "%Y.%m.%d %H:%M:%S").unwrap();
39        msg_date >= *since_date
40    }
41    else {
42        true
43    }
44}
vkopt_message_parser/filter.rs

vkopt_message_parser/
filter.rs
