Package com.inductiveautomation.ignition.gateway.redundancy.util

Class ActiveInactiveFilter

java.lang.Object

com.inductiveautomation.ignition.gateway.redundancy.util.ActiveInactiveFilter

All Implemented Interfaces:

RedundancyStateListener, EventListener

public abstract class ActiveInactiveFilter
extends Object
implements RedundancyStateListener

Only care about doing something when the ActivityLevel transitions from:

• !Active => Active
• Active =>!Active

but none of the other permutations? ActiveInactiveFilter is your man.

Constructor Summary

Constructors

Constructor	Description
ActiveInactiveFilter(ActivityLevel initialLevel)

Method Summary

Modifier and Type	Method	Description
void	redundancyConnStatusChanged(ClusterPeerConnectionStatus status)	Called when the connection state between this node and the other changes- on connect and disconnect.
void	redundancyStateChanged(RedundancyState newState)	Called when the node's "redundancy state" changes - ie, its activity level.
abstract void	transitionToActive(RedundancyState redundancyState)	ActivityLevel has transitioned from not-ActivityLevel.Active to ActivityLevel.Active.
abstract void	transitionToInactive(RedundancyState redundancyState)	ActivityLevel has transitioned from ActivityLevel.Active to not-ActivityLevel.Active.

Methods inherited from class java.lang.Object

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

Constructor Details

ActiveInactiveFilter

public ActiveInactiveFilter(ActivityLevel initialLevel)

Method Details

redundancyStateChanged

public void redundancyStateChanged(RedundancyState newState)

Description copied from interface: RedundancyStateListener

Called when the node's "redundancy state" changes - ie, its activity level.

Specified by:

redundancyStateChanged in interface RedundancyStateListener

redundancyConnStatusChanged

public void redundancyConnStatusChanged(ClusterPeerConnectionStatus status)

Description copied from interface: RedundancyStateListener

Called when the connection state between this node and the other changes- on connect and disconnect.

Specified by:

redundancyConnStatusChanged in interface RedundancyStateListener

transitionToActive

public abstract void transitionToActive(RedundancyState redundancyState)

ActivityLevel has transitioned from not-ActivityLevel.Active to ActivityLevel.Active. Do some startup stuff maybe!

This call occurs while synchronized on ActiveInactiveFilter.this.

Parameters:

redundancyState - The RedundancyState that caused this transition.

transitionToInactive

public abstract void transitionToInactive(RedundancyState redundancyState)

ActivityLevel has transitioned from ActivityLevel.Active to not-ActivityLevel.Active. Do some shutdown stuff maybe!

This call occurs while synchronized on ActiveInactiveFilter.this.

Parameters:

redundancyState - The RedundancyState that caused this transition.