org.jivesoftware.smack.sm

Class SMUtils

java.lang.Object

org.jivesoftware.smack.sm.SMUtils

public class SMUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
SMUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static long	calculateDelta(long reportedHandledCount, long lastKnownHandledCount) Calculates the delta of the last known stanza handled count and the new reported stanza handled count while considering that the new value may be wrapped after 2^32-1.
static long	incrementHeight(long height) Quoting XEP-198 4.: "In the unlikely case that the number of stanzas handled during a stream management session exceeds the number of digits that can be represented by the unsignedInt datatype as specified in XML Schema Part 2 [10] (i.e., 2^32), the value of 'h' SHALL be reset from 2^32-1 back to zero (rather than being incremented to 2^32)."

Methods inherited from class java.lang.Object

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

Constructor Detail

SMUtils

public SMUtils()

Method Detail

incrementHeight

public static long incrementHeight(long height)

Quoting XEP-198 4.: "In the unlikely case that the number of stanzas handled during a stream management session exceeds the number of digits that can be represented by the unsignedInt datatype as specified in XML Schema Part 2 [10] (i.e., 2^32), the value of 'h' SHALL be reset from 2^32-1 back to zero (rather than being incremented to 2^32)."

Parameters:

height -

Returns:

the incremented height

calculateDelta

public static long calculateDelta(long reportedHandledCount,
                  long lastKnownHandledCount)

Calculates the delta of the last known stanza handled count and the new reported stanza handled count while considering that the new value may be wrapped after 2^32-1.

Parameters:

reportedHandledCount -

lastKnownHandledCount -

Returns:

the delta