co.cask.hydrator.common

Class TimeParser

java.lang.Object

co.cask.hydrator.common.TimeParser

public class TimeParser
extends Object

Parses time expressions and does simple time math.

Constructor Summary

Constructors

Constructor and Description
TimeParser(long runtime)

Method Summary

Methods

Modifier and Type	Method and Description
static long	parseDuration(String durationStr) Parses a duration String to its long value.
long	parseRuntime(String str) Parses time strings into timestamps, with support for some basic math.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TimeParser

public TimeParser(long runtime)

Method Detail

parseRuntime

public long parseRuntime(String str)

Parses time strings into timestamps, with support for some basic math. Math syntax includes addition and subtraction in seconds, minutes, hours, and days. Periods of time are specified as some number followed by the time unit, where 's' is seconds', 'm' is minutes, 'h' is hours, and 'd' is days. The "runtime" keyword translates to some given runtime, and can be strung together with various additions and subtractions. For example, "runtime-5s" is 5 seconds before runtime, "runtime-1d" is one day before runtime, and "runtime-1d+4h" is 20 hours before runtime.

Parameters:

str - the time string to parse

Returns:

milliseconds equivalent of the time string

parseDuration

public static long parseDuration(String durationStr)

Parses a duration String to its long value. Frequency string consists of a number followed by an unit, with 's' for seconds, 'm' for minutes, 'h' for hours and 'd' for days. For example, an input of '5m' means 5 minutes which will be parsed to 300000 milliseconds.

Parameters:

durationStr - the duration string (ex: 5m, 5h etc).

Returns:

milliseconds equivalent of the duration string