dk.netarkivet.common.utils
Class TimeUtils

java.lang.Object
  dk.netarkivet.common.utils.TimeUtils

public class TimeUtils
extends java.lang.Object

Various utilities for waiting some time.

Constructor Summary

TimeUtils()

Method Summary

static void	exponentialBackoffSleep(int attempt) Sleep for an exponentially backing off amount of time, in milliseconds.
static void	exponentialBackoffSleep(int attempt, int timeunit) Sleep for an exponentially backing off amount of time.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeUtils

public TimeUtils()

Method Detail

exponentialBackoffSleep

public static void exponentialBackoffSleep(int attempt)

Sleep for an exponentially backing off amount of time, in milliseconds. Thus the first attempt will sleep for 1 ms, the second for 2, the third for 4, etc.

Parameters:

attempt - The attempt number, which is the log2 of the number of milliseconds spent asleep.

exponentialBackoffSleep

public static void exponentialBackoffSleep(int attempt,
                                           int timeunit)

Sleep for an exponentially backing off amount of time. The mode describes the unit of time as defined by @see java.util.Calendar

Parameters:

attempt - The attempt number, which is the log2 of the number of timeunits spent asleep.

timeunit - the specified timeunit in miliseconds

Throws:

ArgumentNotValid - if timeunit is unsupported.