|
| 1 | +/*! |
| 2 | +This crate provides type convertion for [Jiff](jiff) and |
| 3 | +Aws Smithy Type [DateTime] used |
| 4 | +in the [AWS SDK for Rust](https://aws.amazon.com/sdk-for-rust/). |
| 5 | +
|
| 6 | +``` |
| 7 | +use jiff_aws::ConvertAwsDateTime; |
| 8 | +use jiff_aws::ConvertJiffTypes; |
| 9 | +use jiff::Timestamp; |
| 10 | +use jiff::Zoned; |
| 11 | +use aws_smithy_types::DateTime; |
| 12 | +
|
| 13 | +let datetime = DateTime::from_secs_and_nanos(1627680004,123000000); |
| 14 | +let timestamp: Timestamp = datetime.try_into_timestamp().unwrap(); |
| 15 | +assert_eq!( "2021-07-30T21:20:04.123Z".parse::<Timestamp>().unwrap(), timestamp); |
| 16 | +
|
| 17 | +let timestamp = Timestamp::try_from_aws(datetime).unwrap(); |
| 18 | +assert_eq!( "2021-07-30T21:20:04.123Z".parse::<Timestamp>().unwrap(), timestamp); |
| 19 | +
|
| 20 | +let zoned = datetime.try_into_zoned().unwrap(); |
| 21 | +assert_eq!( "2021-07-30T21:20:04.123+00:00[UTC]".parse::<Zoned>().unwrap(), zoned); |
| 22 | +
|
| 23 | +let zoned = Zoned::try_from_aws(datetime).unwrap(); |
| 24 | +assert_eq!( "2021-07-30T21:20:04.123+00:00[UTC]".parse::<Zoned>().unwrap(), zoned); |
| 25 | +
|
| 26 | +let other: DateTime = timestamp.into_aws_datetime(); |
| 27 | +assert_eq!(datetime, other); |
| 28 | +
|
| 29 | +let other = DateTime::from_timestamp(timestamp); |
| 30 | +assert_eq!(datetime, other); |
| 31 | +
|
| 32 | +let other: DateTime = zoned.clone().into_aws_datetime(); |
| 33 | +assert_eq!(datetime, other); |
| 34 | +
|
| 35 | +let other = DateTime::from_zoned(zoned); |
| 36 | +assert_eq!(datetime, other); |
| 37 | +
|
| 38 | +``` |
| 39 | +*/ |
| 40 | + |
| 41 | +use aws_smithy_types::DateTime; |
| 42 | +use jiff::{tz::TimeZone, Timestamp, Zoned}; |
| 43 | +pub use traits::{ConvertAwsDateTime, ConvertJiffTypes}; |
| 44 | +mod traits; |
| 45 | + |
| 46 | +impl ConvertAwsDateTime for Timestamp { |
| 47 | + type Error = jiff::Error; |
| 48 | + |
| 49 | + fn into_aws_datetime(self) -> DateTime { |
| 50 | + DateTime::from_timestamp(self) |
| 51 | + } |
| 52 | + |
| 53 | + fn try_from_aws(value: DateTime) -> Result<Self, Self::Error> { |
| 54 | + jiff::Timestamp::new(value.secs(), value.subsec_nanos() as i32) |
| 55 | + } |
| 56 | +} |
| 57 | + |
| 58 | +impl ConvertAwsDateTime for Zoned { |
| 59 | + type Error = jiff::Error; |
| 60 | + |
| 61 | + fn into_aws_datetime(self) -> DateTime { |
| 62 | + DateTime::from_zoned(self) |
| 63 | + } |
| 64 | + |
| 65 | + fn try_from_aws(value: DateTime) -> Result<Self, Self::Error> { |
| 66 | + let timestamp = |
| 67 | + jiff::Timestamp::new(value.secs(), value.subsec_nanos() as i32)?; |
| 68 | + Ok(timestamp.to_zoned(TimeZone::UTC)) |
| 69 | + } |
| 70 | +} |
| 71 | + |
| 72 | +impl ConvertJiffTypes for DateTime { |
| 73 | + type Error = jiff::Error; |
| 74 | + |
| 75 | + fn from_timestamp(timestamp: Timestamp) -> Self { |
| 76 | + let (seconds, nanos) = if timestamp.subsec_nanosecond() < 0 { |
| 77 | + ( |
| 78 | + timestamp.as_second() - 1, |
| 79 | + (1_000_000_000 + timestamp.subsec_nanosecond()) as u32, |
| 80 | + ) |
| 81 | + } else { |
| 82 | + (timestamp.as_second(), timestamp.subsec_nanosecond() as u32) |
| 83 | + }; |
| 84 | + |
| 85 | + DateTime::from_secs_and_nanos(seconds, nanos) |
| 86 | + } |
| 87 | + |
| 88 | + fn from_zoned(zoned: Zoned) -> Self { |
| 89 | + let timestamp = zoned.timestamp(); |
| 90 | + Self::from_timestamp(timestamp) |
| 91 | + } |
| 92 | + |
| 93 | + fn try_into_zoned(self) -> Result<Zoned, Self::Error> { |
| 94 | + Zoned::try_from_aws(self) |
| 95 | + } |
| 96 | + |
| 97 | + fn try_into_timestamp(self) -> Result<Timestamp, Self::Error> { |
| 98 | + Timestamp::try_from_aws(self) |
| 99 | + } |
| 100 | +} |
| 101 | + |
| 102 | +#[cfg(test)] |
| 103 | +mod tests { |
| 104 | + use crate::{traits::ConvertJiffTypes, ConvertAwsDateTime}; |
| 105 | + use aws_smithy_types::DateTime; |
| 106 | + use jiff::{Timestamp, ToSpan}; |
| 107 | + |
| 108 | + #[test] |
| 109 | + fn epoch() -> Result<(), jiff::Error> { |
| 110 | + //Epoch |
| 111 | + let ts = Timestamp::UNIX_EPOCH; |
| 112 | + let dt = ts.into_aws_datetime(); |
| 113 | + assert_eq!(DateTime::from_secs_and_nanos(0, 0), dt); |
| 114 | + |
| 115 | + //Roundtrip Epoch |
| 116 | + let ts2 = dt.try_into_timestamp()?; |
| 117 | + assert_eq!(Timestamp::UNIX_EPOCH, ts2); |
| 118 | + |
| 119 | + Ok(()) |
| 120 | + } |
| 121 | + |
| 122 | + #[test] |
| 123 | + fn epoch_minus_one_nano() -> Result<(), jiff::Error> { |
| 124 | + // Epoch -1 nanosecond |
| 125 | + let ts = Timestamp::UNIX_EPOCH - 1.nanosecond(); |
| 126 | + let dt = ts.into_aws_datetime(); |
| 127 | + assert_eq!(DateTime::from_secs_and_nanos(-1, 999_999_999), dt); |
| 128 | + |
| 129 | + // Roundtrip -1 nanosecond |
| 130 | + let ts2 = dt.try_into_timestamp()?; |
| 131 | + assert_eq!(Timestamp::UNIX_EPOCH - 1.nanosecond(), ts2); |
| 132 | + |
| 133 | + Ok(()) |
| 134 | + } |
| 135 | + |
| 136 | + #[test] |
| 137 | + fn epoch_minus_one_sec() -> Result<(), jiff::Error> { |
| 138 | + // Epoch -1 second |
| 139 | + let ts = Timestamp::UNIX_EPOCH - 1.second(); |
| 140 | + let dt = ts.into_aws_datetime(); |
| 141 | + assert_eq!(DateTime::from_secs_and_nanos(-1, 0), dt); |
| 142 | + |
| 143 | + // Roundtrip epoch -1 second |
| 144 | + let ts2 = dt.try_into_timestamp()?; |
| 145 | + assert_eq!(Timestamp::UNIX_EPOCH - 1.second(), ts2); |
| 146 | + |
| 147 | + Ok(()) |
| 148 | + } |
| 149 | + |
| 150 | + #[test] |
| 151 | + fn epoch_plus_1_sec_1_nano() -> Result<(), jiff::Error> { |
| 152 | + // Epoch + 1 second and 1 nanosecond |
| 153 | + let ts = Timestamp::UNIX_EPOCH + 1.second() + 1.nanosecond(); |
| 154 | + let dt = ts.into_aws_datetime(); |
| 155 | + assert_eq!(DateTime::from_secs_and_nanos(1, 1), dt); |
| 156 | + |
| 157 | + // Roundtrip epoch + 1 second and 1 nanosecond |
| 158 | + let ts2 = dt.try_into_timestamp()?; |
| 159 | + assert_eq!(Timestamp::UNIX_EPOCH + 1.second() + 1.nanosecond(), ts2); |
| 160 | + |
| 161 | + Ok(()) |
| 162 | + } |
| 163 | +} |
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