azure_core/
parsing.rs

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1//! Parser helper utilities.
2
3use crate::date;
4use crate::error::{Error, ErrorKind, ResultExt};
5
6pub trait FromStringOptional<T> {
7    fn from_str_optional(s: &str) -> crate::Result<T>;
8}
9
10impl FromStringOptional<u64> for u64 {
11    fn from_str_optional(s: &str) -> crate::Result<u64> {
12        s.parse::<u64>().map_kind(ErrorKind::DataConversion)
13    }
14}
15
16impl FromStringOptional<String> for String {
17    fn from_str_optional(s: &str) -> crate::Result<String> {
18        Ok(s.to_owned())
19    }
20}
21
22impl FromStringOptional<bool> for bool {
23    fn from_str_optional(s: &str) -> crate::Result<bool> {
24        match s {
25            "true" => Ok(true),
26            "false" => Ok(false),
27            _ => Err(Error::with_message(ErrorKind::DataConversion, || {
28                "error parsing bool '{s}'"
29            })),
30        }
31    }
32}
33
34impl FromStringOptional<time::OffsetDateTime> for time::OffsetDateTime {
35    fn from_str_optional(s: &str) -> crate::Result<time::OffsetDateTime> {
36        from_azure_time(s).with_context(ErrorKind::DataConversion, || {
37            format!("error parsing date time '{s}'")
38        })
39    }
40}
41
42#[cfg(not(feature = "azurite_workaround"))]
43pub fn from_azure_time(s: &str) -> crate::Result<time::OffsetDateTime> {
44    date::parse_rfc1123(s)
45}
46
47#[cfg(feature = "azurite_workaround")]
48pub fn from_azure_time(s: &str) -> crate::Result<time::OffsetDateTime> {
49    if let Ok(dt) = date::parse_rfc1123(s) {
50        Ok(dt)
51    } else {
52        tracing::warn!("Received an invalid date: {}, returning now()", s);
53        Ok(time::OffsetDateTime::now_utc())
54    }
55}
56
57#[cfg(test)]
58mod test {
59
60    #[test]
61    fn test_from_azure_time() {
62        let t = super::from_azure_time("Sun, 27 Sep 2009 17:26:40 GMT").unwrap();
63
64        assert_eq!(t.day(), 27);
65        assert_eq!(t.month(), time::Month::September);
66        assert_eq!(t.hour(), 17);
67        assert_eq!(t.second(), 40);
68    }
69}
azure_core/parsing.rs

azure_core/
parsing.rs
