com.sun.grizzly.util.http
Class FastHttpDateFormat

java.lang.Object
  com.sun.grizzly.util.http.FastHttpDateFormat

public final class FastHttpDateFormat
extends Object

Utility class to generate HTTP dates.

Author:

Gustav Trede, Remy Maucherat

Field Summary

protected static int	CACHE_SIZE
protected static String	currentDate Current formatted date.
protected static ThreadLocal<SimpleDateFormat>	FORMAT HTTP date format.
protected static ConcurrentHashMap<Long,String>	formatCache Formatter cache.
protected static ThreadLocal	FORMATS ThreadLocal for the set of SimpleDateFormat formats to use in getDateHeader().
protected static TimeZone	GMT_TIME_ZONE
protected static TimeZone	gmtZone
protected static long	nextGeneration Instant on which the currentDate object was generated.
protected static ConcurrentHashMap<String,Long>	parseCache Parser cache.

Constructor Summary

FastHttpDateFormat()

Method Summary

static String	formatDate(long value, DateFormat threadLocalformat) Get the HTTP format of the specified date. http spec only requre second precision http://tools.ietf.org/html/rfc2616#page-20 therefore we dont use the millisecond precision , but second .
static String	getCurrentDate() Get the current date in HTTP format.
static long	parseDate(String value, DateFormat[] threadLocalformats) Try to parse the given date as a HTTP date.

Methods inherited from class java.lang.Object

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

Field Detail

CACHE_SIZE

protected static final int CACHE_SIZE

See Also:

Constant Field Values

GMT_TIME_ZONE

protected static final TimeZone GMT_TIME_ZONE

FORMAT

protected static final ThreadLocal<SimpleDateFormat> FORMAT

HTTP date format.

gmtZone

protected static final TimeZone gmtZone

FORMATS

protected static final ThreadLocal FORMATS

ThreadLocal for the set of SimpleDateFormat formats to use in getDateHeader(). GMT timezone - all HTTP dates are on GMT

nextGeneration

protected static volatile long nextGeneration

Instant on which the currentDate object was generated.

currentDate

protected static volatile String currentDate

Current formatted date.

formatCache

protected static final ConcurrentHashMap<Long,String> formatCache

Formatter cache.

parseCache

protected static final ConcurrentHashMap<String,Long> parseCache

Parser cache.

Constructor Detail

FastHttpDateFormat

public FastHttpDateFormat()

Method Detail

getCurrentDate

public static final String getCurrentDate()

Get the current date in HTTP format.

formatDate

public static final String formatDate(long value,
                                      DateFormat threadLocalformat)

Get the HTTP format of the specified date.
http spec only requre second precision http://tools.ietf.org/html/rfc2616#page-20
therefore we dont use the millisecond precision , but second . truncation is done in the same way for second precision in SimpleDateFormat:
(999 millisec. = 0 sec.)

Parameters:

timestamp - in millisec

the - formater used if cache value was not found

parseDate

public static final long parseDate(String value,
                                   DateFormat[] threadLocalformats)

Try to parse the given date as a HTTP date.