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125 lines
3.8 KiB
Python
125 lines
3.8 KiB
Python
################################################################################
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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################################################################################
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from pyflink.java_gateway import get_gateway
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__all__ = ['Duration', 'Instant', 'Time']
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class Duration(object):
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"""
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A time-based amount of time, such as '34.5 seconds'.
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"""
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def __init__(self, j_duration):
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self._j_duration = j_duration
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@staticmethod
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def of_days(days: int):
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return Duration(get_gateway().jvm.java.time.Duration.ofDays(days))
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@staticmethod
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def of_hours(hours: int):
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return Duration(get_gateway().jvm.java.time.Duration.ofHours(hours))
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@staticmethod
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def of_millis(millis: int):
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return Duration(get_gateway().jvm.java.time.Duration.ofMillis(millis))
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@staticmethod
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def of_minutes(minutes: int):
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return Duration(get_gateway().jvm.java.time.Duration.ofMinutes(minutes))
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@staticmethod
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def of_nanos(nanos: int):
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return Duration(get_gateway().jvm.java.time.Duration.ofNanos(nanos))
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@staticmethod
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def of_seconds(seconds: int):
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return Duration(get_gateway().jvm.java.time.Duration.ofSeconds(seconds))
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def __eq__(self, other):
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return isinstance(other, Duration) and self._j_duration.equals(other._j_duration)
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class Instant(object):
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"""
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An instantaneous point on the time-line. Similar to Java.time.Instant.
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"""
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def __init__(self, seconds, nanos):
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self.seconds = seconds
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self.nanos = nanos
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def to_epoch_milli(self):
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if self.seconds < 0 < self.nanos:
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return (self.seconds + 1) * 1000 + self.nanos // 1000_1000 - 1000
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else:
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return self.seconds * 1000 + self.nanos // 1000_000
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@staticmethod
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def of_epoch_milli(epoch_milli: int) -> 'Instant':
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secs = epoch_milli // 1000
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mos = epoch_milli % 1000
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return Instant(secs, mos * 1000_000)
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def __eq__(self, other):
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return (self.__class__ == other.__class__ and
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self.seconds == other.seconds and
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self.nanos == other.nanos)
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def __repr__(self):
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return 'Instant<{}, {}>'.format(self.seconds, self.nanos)
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class Time(object):
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"""
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The definition of a time interval.
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"""
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def __init__(self, milliseconds: int):
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self._milliseconds = milliseconds
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def to_milliseconds(self) -> int:
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return self._milliseconds
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@staticmethod
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def milliseconds(milliseconds: int):
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return Time(milliseconds)
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@staticmethod
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def seconds(seconds: int):
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return Time.milliseconds(seconds * 1000)
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@staticmethod
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def minutes(minutes: int):
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return Time.seconds(minutes * 60)
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@staticmethod
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def hours(hours: int):
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return Time.minutes(hours * 60)
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@staticmethod
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def days(days: int):
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return Time.hours(days * 24)
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def __eq__(self, other):
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return (self.__class__ == other.__class__ and
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self._milliseconds == other._milliseconds)
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def __str__(self):
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return "{} ms".format(self._milliseconds)
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