fact.auxservice

Class AuxCache

java.lang.Object

fact.auxservice.AuxCache

public class AuxCache
extends Object

This class defines some classes needed for caching many AuxPoint into ram using an LRU cache. A specific auxfile is uniquely defined by its name and the 'FACT Night' string. You know...the typical 20160320-like string.

Created by kai on 12.06.16.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	AuxCache.CacheKey

Constructor Summary

Constructors

Constructor and Description
AuxCache()

Method Summary

Modifier and Type	Method and Description
static Integer	dateTimeStampToFACTNight(ZonedDateTime timestamp) Takes a dateTime object and returns the appropriate FACT night number.
static Path	dateTimeStampToFACTPath(ZonedDateTime timeStamp) Takes a dateTime object and returns the canonical path to an aux or data file.

Methods inherited from class java.lang.Object

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

Constructor Detail

AuxCache

public AuxCache()

Method Detail

dateTimeStampToFACTNight

public static Integer dateTimeStampToFACTNight(ZonedDateTime timestamp)

Takes a dateTime object and returns the appropriate FACT night number. Entering some datetime for 9:30 in the morning, e.g. 2016-01-03 09:30:12, returns 20160102. The intervall goes to 12:00 noon before its switched to the next night.

Parameters:

timestamp - the timestamp to get the night for

Returns:

a FACT night number.

dateTimeStampToFACTPath

public static Path dateTimeStampToFACTPath(ZonedDateTime timeStamp)

Takes a dateTime object and returns the canonical path to an aux or data file. For example 2016-01-03 09:30:12 returns a path to "2016/01/02" while 2016-01-03 13:30:12 would return "2016/01/03"

Parameters:

timeStamp - the timestamp to get the night for

Returns:

a partial path starting with the year.