Package org.opendaylight.lispflowmapping.southbound.lisp

Class AuthenticationKeyDataListener

java.lang.Object

org.opendaylight.lispflowmapping.southbound.lisp.AuthenticationKeyDataListener

All Implemented Interfaces:

EventListener, org.opendaylight.mdsal.binding.api.ClusteredDataTreeChangeListener<AuthenticationKey>, org.opendaylight.mdsal.binding.api.DataTreeChangeListener<AuthenticationKey>

public class AuthenticationKeyDataListener
extends Object
implements org.opendaylight.mdsal.binding.api.ClusteredDataTreeChangeListener<AuthenticationKey>

DataListener for all AuthenticationKey modification events.

Constructor Summary

Constructors

Constructor	Description
AuthenticationKeyDataListener(org.opendaylight.mdsal.binding.api.DataBroker broker, AuthKeyDb akdb)

Method Summary

Modifier and Type	Method	Description
boolean	authKeysForEidsUnchanged(Map<EidLispAddressKey,EidLispAddress> eids, long timeout)	We maintain a HashMap with the update times of AuthenticationKey objects in the updatedEntries field.
void	closeDataChangeListener()
void	onDataTreeChanged(Collection<org.opendaylight.mdsal.binding.api.DataTreeModification<AuthenticationKey>> changes)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opendaylight.mdsal.binding.api.DataTreeChangeListener

onInitialData

Constructor Details

AuthenticationKeyDataListener

public AuthenticationKeyDataListener(org.opendaylight.mdsal.binding.api.DataBroker broker,
 AuthKeyDb akdb)

Method Details

closeDataChangeListener

public void closeDataChangeListener()

onDataTreeChanged

public void onDataTreeChanged(Collection<org.opendaylight.mdsal.binding.api.DataTreeModification<AuthenticationKey>> changes)

Specified by:

onDataTreeChanged in interface org.opendaylight.mdsal.binding.api.DataTreeChangeListener<AuthenticationKey>

authKeysForEidsUnchanged

public boolean authKeysForEidsUnchanged(Map<EidLispAddressKey,EidLispAddress> eids,
 long timeout)

We maintain a HashMap with the update times of AuthenticationKey objects in the updatedEntries field. We keep entries in the HashMap for the Map-Register cache timeout interval, and lazy remove them afterwards. As a result the same EID will be considered updated during that interval, even on subsequent queries. This is necessary because more than one xTR may register the same EID, and to avoid complexity we don't store origin information. The performance trade-off is not significant, because during a typical cache timeout the same xTR will send only a few registration packets (2 for the default value of 90s, when UDP Map-Registers are sent at 1 minute intervals).

Parameters:

eids - List of EIDs to check

timeout - MapRegister cache timeout value

Returns:

false if any of the EIDs in the eids list was updated in the last timout period, true otherwise