cn.orionsec.kit.lang.utils.time.cron

Class Cron

java.lang.Object

cn.orionsec.kit.lang.utils.time.cron.Cron

All Implemented Interfaces:

Serializable

public class Cron
extends Object
implements Serializable

copy with quartz

Since:

2021/8/26 18:01

Version:

1.0.0

Author:

Jiahang Li

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected static Integer	ALL_SPEC
protected static int	ALL_SPEC_INT
protected static int	DAY_OF_MONTH
protected static int	DAY_OF_WEEK
protected TreeSet<Integer>	daysOfMonth
protected TreeSet<Integer>	daysOfWeek
protected boolean	expressionParsed
protected static int	HOUR
protected TreeSet<Integer>	hours
protected int	lastDayOffset
protected boolean	lastDayOfMonth
protected boolean	lastDayOfWeek
static int	MAX_YEAR
protected static int	MINUTE
protected TreeSet<Integer>	minutes
protected static int	MONTH
protected static Map<String,Integer>	MONTH_MAP
protected TreeSet<Integer>	months
protected boolean	nearestWeekday
protected static Integer	NO_SPEC
protected static int	NO_SPEC_INT
protected int	nthDayOfWeek
protected static int	SECOND
protected TreeSet<Integer>	seconds
protected static Map<String,Integer>	WEEK_DAY_MAP
protected static int	YEAR
protected TreeSet<Integer>	years

Constructor Summary

Constructors

Constructor and Description
Cron(String cronExpression)

Method Summary

Modifier and Type	Method and Description
protected void	addToSet(int val, int end, int incr, int type)
protected void	buildExpression(String expression) 构建表达式
protected int	checkNext(int pos, String s, int val, int type)
protected int	findNextWhiteSpace(int i, String s)
String	getCronExpression()
protected int	getDayOfWeekNumber(String s)
protected String	getExpressionSetSummary(List<Integer> list)
protected String	getExpressionSetSummary(Set<Integer> set)
String	getExpressionSummary() 获取表达式摘要
protected int	getLastDayOfMonth(int monthNum, int year)
protected int	getMonthNumber(String s)
Date	getNextInvalidTimeAfter(Date date) 返回满足 cron 表达式的给定时间的下一个时间 如果未来不会执行 则返回下一秒 不可能为null(不准确)
Date	getNextValidTimeAfter(Date date) 返回满足 cron 表达式的给定时间的下一个时间 如果未来不会执行 则返回null(准确)
protected int	getNumericValue(String s, int i)
Date	getTimeAfter(Date afterTime)
TimeZone	getTimeZone()
protected cn.orionsec.kit.lang.utils.time.cron.Cron.ValueSet	getValue(int v, String s, int i)
boolean	isSatisfiedBy(Date date) 表示给定的日期是否满足 cron 表达式 毫秒被忽略
static Cron	of(String cronExpression)
protected void	setCalendarHour(Calendar cal, int hour) 设置日历hour
void	setTimeZone(TimeZone timeZone)
protected int	skipWhiteSpace(int i, String s)
protected int	storeExpressionVal(int pos, String s, int type)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

SECOND

protected static final int SECOND

See Also:

Constant Field Values

MINUTE

protected static final int MINUTE

See Also:

Constant Field Values

HOUR

protected static final int HOUR

See Also:

Constant Field Values

DAY_OF_MONTH

protected static final int DAY_OF_MONTH

See Also:

Constant Field Values

MONTH

protected static final int MONTH

See Also:

Constant Field Values

DAY_OF_WEEK

protected static final int DAY_OF_WEEK

See Also:

Constant Field Values

YEAR

protected static final int YEAR

See Also:

Constant Field Values

ALL_SPEC_INT

protected static final int ALL_SPEC_INT

See Also:

Constant Field Values

NO_SPEC_INT

protected static final int NO_SPEC_INT

See Also:

Constant Field Values

ALL_SPEC

protected static final Integer ALL_SPEC

NO_SPEC

protected static final Integer NO_SPEC

MONTH_MAP

protected static final Map<String,Integer> MONTH_MAP

WEEK_DAY_MAP

protected static final Map<String,Integer> WEEK_DAY_MAP

seconds

protected transient TreeSet<Integer> seconds

minutes

protected transient TreeSet<Integer> minutes

hours

protected transient TreeSet<Integer> hours

daysOfMonth

protected transient TreeSet<Integer> daysOfMonth

months

protected transient TreeSet<Integer> months

daysOfWeek

protected transient TreeSet<Integer> daysOfWeek

years

protected transient TreeSet<Integer> years

lastDayOfWeek

protected transient boolean lastDayOfWeek

nthDayOfWeek

protected transient int nthDayOfWeek

lastDayOfMonth

protected transient boolean lastDayOfMonth

nearestWeekday

protected transient boolean nearestWeekday

lastDayOffset

protected transient int lastDayOffset

expressionParsed

protected transient boolean expressionParsed

MAX_YEAR

public static final int MAX_YEAR

Constructor Detail

Cron

public Cron(String cronExpression)

Method Detail

of

public static Cron of(String cronExpression)

isSatisfiedBy

public boolean isSatisfiedBy(Date date)

表示给定的日期是否满足 cron 表达式 毫秒被忽略

Parameters:

date - date

Returns:

日期是否满足 cron 表达式

getNextValidTimeAfter

public Date getNextValidTimeAfter(Date date)

返回满足 cron 表达式的给定时间的下一个时间 如果未来不会执行 则返回null(准确)

Parameters:

date - 开始时间

Returns:

下一个时间

getNextInvalidTimeAfter

public Date getNextInvalidTimeAfter(Date date)

返回满足 cron 表达式的给定时间的下一个时间 如果未来不会执行 则返回下一秒 不可能为null(不准确)

Parameters:

date - 开始时间

Returns:

下一个时间

getTimeZone

public TimeZone getTimeZone()

setTimeZone

public void setTimeZone(TimeZone timeZone)

getCronExpression

public String getCronExpression()

getExpressionSummary

public String getExpressionSummary()

获取表达式摘要

Returns:

摘要

toString

public String toString()

Overrides:

toString in class Object

buildExpression

protected void buildExpression(String expression)

构建表达式

Parameters:

expression - expression

storeExpressionVal

protected int storeExpressionVal(int pos,
                                 String s,
                                 int type)

checkNext

protected int checkNext(int pos,
                        String s,
                        int val,
                        int type)

getExpressionSetSummary

protected String getExpressionSetSummary(Set<Integer> set)

getExpressionSetSummary

protected String getExpressionSetSummary(List<Integer> list)

skipWhiteSpace

protected int skipWhiteSpace(int i,
                             String s)

findNextWhiteSpace

protected int findNextWhiteSpace(int i,
                                 String s)

addToSet

protected void addToSet(int val,
                        int end,
                        int incr,
                        int type)

getValue

protected cn.orionsec.kit.lang.utils.time.cron.Cron.ValueSet getValue(int v,
                                                                      String s,
                                                                      int i)

getNumericValue

protected int getNumericValue(String s,
                              int i)

getMonthNumber

protected int getMonthNumber(String s)

getDayOfWeekNumber

protected int getDayOfWeekNumber(String s)

getTimeAfter

public Date getTimeAfter(Date afterTime)

setCalendarHour

protected void setCalendarHour(Calendar cal,
                               int hour)

设置日历hour

Parameters:

cal - calendar

hour - hour

getLastDayOfMonth

protected int getLastDayOfMonth(int monthNum,
                                int year)