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// Licensed to the Apache Software Foundation (ASF) under one // or more contributor license agreements. See the NOTICE file // distributed with this work for additional information // regarding copyright ownership. The ASF licenses this file // to you under the Apache License, Version 2.0 (the // "License"); you may not use this file except in compliance // with the License. You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, // software distributed under the License is distributed on an // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY // KIND, either express or implied. See the License for the // specific language governing permissions and limitations // under the License. //! Conversion methods for dates and times. use chrono::{Duration, NaiveDateTime, NaiveTime}; /// Number of seconds in a day const SECONDS_IN_DAY: i64 = 86_400; /// Number of milliseconds in a second const MILLISECONDS: i64 = 1_000; /// Number of microseconds in a second const MICROSECONDS: i64 = 1_000_000; /// Number of nanoseconds in a second const NANOSECONDS: i64 = 1_000_000_000; /// converts a `i32` representing a `date32` to [`NaiveDateTime`] #[inline] pub fn date32_to_datetime(v: i32) -> NaiveDateTime { NaiveDateTime::from_timestamp(v as i64 * SECONDS_IN_DAY, 0) } /// converts a `i64` representing a `date64` to [`NaiveDateTime`] #[inline] pub fn date64_to_datetime(v: i64) -> NaiveDateTime { NaiveDateTime::from_timestamp( // extract seconds from milliseconds v / MILLISECONDS, // discard extracted seconds and convert milliseconds to nanoseconds (v % MILLISECONDS * MICROSECONDS) as u32, ) } /// converts a `i32` representing a `time32(s)` to [`NaiveDateTime`] #[inline] pub fn time32s_to_time(v: i32) -> NaiveTime { NaiveTime::from_num_seconds_from_midnight(v as u32, 0) } /// converts a `i32` representing a `time32(ms)` to [`NaiveDateTime`] #[inline] pub fn time32ms_to_time(v: i32) -> NaiveTime { let v = v as i64; NaiveTime::from_num_seconds_from_midnight( // extract seconds from milliseconds (v / MILLISECONDS) as u32, // discard extracted seconds and convert milliseconds to // nanoseconds (v % MILLISECONDS * MICROSECONDS) as u32, ) } /// converts a `i64` representing a `time64(us)` to [`NaiveDateTime`] #[inline] pub fn time64us_to_time(v: i64) -> NaiveTime { NaiveTime::from_num_seconds_from_midnight( // extract seconds from microseconds (v / MICROSECONDS) as u32, // discard extracted seconds and convert microseconds to // nanoseconds (v % MICROSECONDS * MILLISECONDS) as u32, ) } /// converts a `i64` representing a `time64(ns)` to [`NaiveDateTime`] #[inline] pub fn time64ns_to_time(v: i64) -> NaiveTime { NaiveTime::from_num_seconds_from_midnight( // extract seconds from nanoseconds (v / NANOSECONDS) as u32, // discard extracted seconds (v % NANOSECONDS) as u32, ) } /// converts a `i64` representing a `timestamp(s)` to [`NaiveDateTime`] #[inline] pub fn timestamp_s_to_datetime(v: i64) -> NaiveDateTime { NaiveDateTime::from_timestamp(v, 0) } /// converts a `i64` representing a `timestamp(ms)` to [`NaiveDateTime`] #[inline] pub fn timestamp_ms_to_datetime(v: i64) -> NaiveDateTime { NaiveDateTime::from_timestamp( // extract seconds from milliseconds v / MILLISECONDS, // discard extracted seconds and convert milliseconds to nanoseconds (v % MILLISECONDS * MICROSECONDS) as u32, ) } /// converts a `i64` representing a `timestamp(us)` to [`NaiveDateTime`] #[inline] pub fn timestamp_us_to_datetime(v: i64) -> NaiveDateTime { NaiveDateTime::from_timestamp( // extract seconds from microseconds v / MICROSECONDS, // discard extracted seconds and convert microseconds to nanoseconds (v % MICROSECONDS * MILLISECONDS) as u32, ) } /// converts a `i64` representing a `timestamp(ns)` to [`NaiveDateTime`] #[inline] pub fn timestamp_ns_to_datetime(v: i64) -> NaiveDateTime { NaiveDateTime::from_timestamp( // extract seconds from nanoseconds v / NANOSECONDS, // discard extracted seconds (v % NANOSECONDS) as u32, ) } /// converts a `i64` representing a `duration(s)` to [`Duration`] #[inline] pub fn duration_s_to_duration(v: i64) -> Duration { Duration::seconds(v) } /// converts a `i64` representing a `duration(ms)` to [`Duration`] #[inline] pub fn duration_ms_to_duration(v: i64) -> Duration { Duration::milliseconds(v) } /// converts a `i64` representing a `duration(us)` to [`Duration`] #[inline] pub fn duration_us_to_duration(v: i64) -> Duration { Duration::microseconds(v) } /// converts a `i64` representing a `duration(ns)` to [`Duration`] #[inline] pub fn duration_ns_to_duration(v: i64) -> Duration { Duration::nanoseconds(v) }