com.highqsoft.ods

Class DateParser

java.lang.Object

com.highqsoft.ods.DateParser

public class DateParser
extends java.lang.Object

This helper provide methods to parse a date string. The methods parseDate(String, String) and parseDate(String) are able to understand some functions, that allows more efficient spefications.

NOW()	The actual time in milli seconds.
SECONDS(int)	The duration in seconds. If the argument is empty, it will be interpreted as number of seconds of the minute of the current time.
MINUTES(int)	The duration in minutes. If the argument is empty, it will be interpreted as number of minutes of the hour of the current time.
HOURS(int)	The duration in hours. If the argument is empty, it will be interpreted as number of hours of the day of the current time.
DAYS(int)	The duration in days. If the argument is empty, it will be interpreted as number of days of the month of the current time.
MONTHS(int)	The duration in months. If the argument is empty, it will be interpreted as number of months of the year of the current time.
YEARS(int)	The duration in years. If the argument is empty, the year of the current time will be used.

Here are some examples:
20080215-days(3)+hours(2)+minutes(2)-SECONDS(10000) now()-days(3)+hours(2)+minutes(2)-SECONDS(10000)

Since:

$Date: 2017/04/06 13:29:36 $

Version:

$Revision: 1.11 $

Author:

Andreas Hofmann

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	DateParser.Part

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DAYS
static long	DAYS_FACTOR
static java.lang.String	DAYS_PATTERN
static java.lang.String	HOURS
static long	HOURS_FACTOR
static java.lang.String	HOURS_PATTERN
static java.lang.String	MINUTES
static long	MINUTES_FACTOR
static java.lang.String	MINUTES_PATTERN
static java.lang.String	MONTHS
static long	MONTHS_FACTOR
static java.lang.String	MONTHS_PATTERN
static java.lang.String	NOW
static long	NOW_FACTOR
static java.lang.String	NOW_PATTERN
static java.lang.String	SECONDS
static long	SECONDS_FACTOR
static java.lang.String	SECONDS_PATTERN
static java.lang.String	YEARS
static long	YEARS_FACTOR
static java.lang.String	YEARS_PATTERN

Constructor Summary

Constructors

Constructor and Description
DateParser()

Method Summary

Methods

Modifier and Type	Method and Description
protected static long	getTime(DateParser.Part part) Get geth time in millis that is defined by the given part object.
static void	main(java.lang.String[] args) The testing program.
protected static long	parse(java.lang.String literal, java.lang.String format) Parse a Date value from string.
protected static DateParser.Part	parseDate(DateParser.Part part, java.lang.String format) Parsing a Part object.
static java.util.Date	parseDate(java.lang.String literal) Parse a Date value from string.
static java.util.Date	parseDate(java.lang.String literal, java.lang.String format) Parse a Date value from string.
static java.util.Date	parseDateFormat(java.lang.String literal, java.lang.String format) Parse a Date value from string based on SimpleDateFormat class only.
protected static DateParser.Part[]	parseDateToPart(java.lang.String literal, java.lang.String format) Parsing a Part object.
protected static DateParser.Part	parsePart(DateParser.Part part, java.lang.String pattern, long initial, long factor) Parsing a Part object.
protected static DateParser.Part[]	parsePart(java.lang.String literal, java.lang.String pattern, long initial, long factor) Parsing a Part object.

Methods inherited from class java.lang.Object

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

Field Detail

SECONDS

public static final java.lang.String SECONDS

See Also:

Constant Field Values

SECONDS_PATTERN

public static final java.lang.String SECONDS_PATTERN

See Also:

Constant Field Values

SECONDS_FACTOR

public static final long SECONDS_FACTOR

See Also:

Constant Field Values

MINUTES

public static final java.lang.String MINUTES

See Also:

Constant Field Values

MINUTES_PATTERN

public static final java.lang.String MINUTES_PATTERN

See Also:

Constant Field Values

MINUTES_FACTOR

public static final long MINUTES_FACTOR

See Also:

Constant Field Values

HOURS

public static final java.lang.String HOURS

See Also:

Constant Field Values

HOURS_PATTERN

public static final java.lang.String HOURS_PATTERN

See Also:

Constant Field Values

HOURS_FACTOR

public static final long HOURS_FACTOR

See Also:

Constant Field Values

DAYS

public static final java.lang.String DAYS

See Also:

Constant Field Values

DAYS_PATTERN

public static final java.lang.String DAYS_PATTERN

See Also:

Constant Field Values

DAYS_FACTOR

public static final long DAYS_FACTOR

See Also:

Constant Field Values

MONTHS

public static final java.lang.String MONTHS

See Also:

Constant Field Values

MONTHS_PATTERN

public static final java.lang.String MONTHS_PATTERN

See Also:

Constant Field Values

MONTHS_FACTOR

public static final long MONTHS_FACTOR

See Also:

Constant Field Values

YEARS

public static final java.lang.String YEARS

See Also:

Constant Field Values

YEARS_PATTERN

public static final java.lang.String YEARS_PATTERN

See Also:

Constant Field Values

YEARS_FACTOR

public static final long YEARS_FACTOR

See Also:

Constant Field Values

NOW

public static final java.lang.String NOW

See Also:

Constant Field Values

NOW_PATTERN

public static final java.lang.String NOW_PATTERN

See Also:

Constant Field Values

NOW_FACTOR

public static final long NOW_FACTOR

See Also:

Constant Field Values

Constructor Detail

DateParser

public DateParser()

Method Detail

parseDateFormat

public static java.util.Date parseDateFormat(java.lang.String literal,
                             java.lang.String format)
                                      throws java.text.ParseException

Parse a Date value from string based on SimpleDateFormat class only.

Parameters:

literal - The literal

format - the optional format, may be null

Returns:

the parsed date value.

Throws:

java.text.ParseException - if parsing fails.

See Also:

SimpleDateFormat

parseDate

public static java.util.Date parseDate(java.lang.String literal,
                       java.lang.String format)
                                throws java.text.ParseException

Parse a Date value from string.

Parameters:

literal - The literal

format - the optional format, may be null

Returns:

the parsed date value.

Throws:

java.text.ParseException - if parsing fails.

See Also:

SimpleDateFormat

parseDate

public static java.util.Date parseDate(java.lang.String literal)
                                throws java.text.ParseException

Parse a Date value from string.

Parameters:

literal - The literal

Returns:

the parsed date value.

Throws:

java.text.ParseException - if parsing fails.

See Also:

SimpleDateFormat

parse

protected static long parse(java.lang.String literal,
         java.lang.String format)
                     throws java.text.ParseException

Parse a Date value from string.

Parameters:

literal - The literal

Returns:

the parsed date value.

Throws:

java.text.ParseException - if parsing fails.

See Also:

SimpleDateFormat

getTime

protected static long getTime(DateParser.Part part)

Get geth time in millis that is defined by the given part object.

Parameters:

part - the parts.

Returns:

the time in milli seconds.

parsePart

protected static DateParser.Part parsePart(DateParser.Part part,
                        java.lang.String pattern,
                        long initial,
                        long factor)
                                    throws java.text.ParseException

Parsing a Part object.

Parameters:

part - the Part object to be parsed.

pattern - the pattern to used for splitting literal.

inital - the intial value, if function has no argument.

factor - the factor for the parsed value to get the millis.

Returns:

the Part object

Throws:

an - parse exception, if the function argument is not parsable.

java.text.ParseException

parsePart

protected static DateParser.Part[] parsePart(java.lang.String literal,
                          java.lang.String pattern,
                          long initial,
                          long factor)
                                      throws java.text.ParseException

Parsing a Part object.

Parameters:

literal - the literal to be parsed.

pattern - the pattern to used for splitting literal.

inital - the intial value, if function has no argument.

factor - the factor for the parsed value to get the millis.

Returns:

the Part object

Throws:

an - parse exception, if the function argument is not parsable.

java.text.ParseException

parseDate

protected static DateParser.Part parseDate(DateParser.Part part,
                        java.lang.String format)
                                    throws java.text.ParseException

Parsing a Part object.

Parameters:

part - the Part object to be parsed.

format - the optional format, may be null

Returns:

the Part object

Throws:

an - parse exception, if the function argument is not parsable.

java.text.ParseException

parseDateToPart

protected static DateParser.Part[] parseDateToPart(java.lang.String literal,
                                java.lang.String format)
                                            throws java.text.ParseException

Parsing a Part object.

Parameters:

literal - the literal to be parsed.

format - the optional format, may be null

Returns:

the Part object

Throws:

an - parse exception, if the function argument is not parsable.

java.text.ParseException

main

public static void main(java.lang.String[] args)

The testing program.

Parameters:

args -