org.apache.solr.common.util

Class DateUtil

java.lang.Object

org.apache.solr.common.util.DateUtil

public class DateUtil
extends Object

This class has some code from HttpClient DateUtil.

Field Summary

Fields

Modifier and Type	Field and Description
static Collection<String>	DEFAULT_DATE_FORMATS A suite of default date formats that can be parsed, and thus transformed to the Solr specific format
static String	PATTERN_ASCTIME Date format pattern used to parse HTTP date headers in ANSI C asctime() format.
static String	PATTERN_RFC1036 Date format pattern used to parse HTTP date headers in RFC 1036 format.
static String	PATTERN_RFC1123 Date format pattern used to parse HTTP date headers in RFC 1123 format.
static TimeZone	UTC

Constructor Summary

Constructors

Constructor and Description
DateUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static Calendar	formatDate(Date date, Calendar cal, Appendable out) Formats the date and returns the calendar instance that was used (which may be reused)
static DateFormat	getThreadLocalDateFormat() Returns a formatter that can be use by the current thread if needed to convert Date objects to the Internal representation.
static Date	parseDate(String d) Returns a formatter that can be use by the current thread if needed to convert Date objects to the Internal representation.
static Date	parseDate(String d, Collection<String> fmts)
static Date	parseDate(String dateValue, Collection<String> dateFormats, Date startDate) Slightly modified from org.apache.commons.httpclient.util.DateUtil.parseDate

Methods inherited from class java.lang.Object

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

Field Detail

PATTERN_RFC1123

public static final String PATTERN_RFC1123

Date format pattern used to parse HTTP date headers in RFC 1123 format.

See Also:

Constant Field Values

PATTERN_RFC1036

public static final String PATTERN_RFC1036

Date format pattern used to parse HTTP date headers in RFC 1036 format.

See Also:

Constant Field Values

PATTERN_ASCTIME

public static final String PATTERN_ASCTIME

Date format pattern used to parse HTTP date headers in ANSI C asctime() format.

See Also:

Constant Field Values

DEFAULT_DATE_FORMATS

public static final Collection<String> DEFAULT_DATE_FORMATS

A suite of default date formats that can be parsed, and thus transformed to the Solr specific format

UTC

public static TimeZone UTC

Constructor Detail

DateUtil

public DateUtil()

Method Detail

parseDate

public static Date parseDate(String d)
                      throws ParseException

Returns a formatter that can be use by the current thread if needed to convert Date objects to the Internal representation.

Parameters:

d - The input date to parse

Returns:

The parsed Date

Throws:

ParseException - If the input can't be parsed

parseDate

public static Date parseDate(String d,
             Collection<String> fmts)
                      throws ParseException

Throws:

ParseException

parseDate

public static Date parseDate(String dateValue,
             Collection<String> dateFormats,
             Date startDate)
                      throws ParseException

Slightly modified from org.apache.commons.httpclient.util.DateUtil.parseDate

Parses the date value using the given date formats.

Parameters:

dateValue - the date value to parse

dateFormats - the date formats to use

startDate - During parsing, two digit years will be placed in the range startDate to startDate + 100 years. This value may be null. When null is given as a parameter, year 2000 will be used.

Returns:

the parsed date

Throws:

ParseException - if none of the dataFormats could parse the dateValue

getThreadLocalDateFormat

public static DateFormat getThreadLocalDateFormat()

Returns a formatter that can be use by the current thread if needed to convert Date objects to the Internal representation.

Returns:

The DateFormat for the current thread

formatDate

public static Calendar formatDate(Date date,
                  Calendar cal,
                  Appendable out)
                           throws IOException

Formats the date and returns the calendar instance that was used (which may be reused)

Throws:

IOException