org.hyperic.hq.events.server.session
Class RecoveryConditionEvaluator

java.lang.Object
  org.hyperic.hq.events.server.session.MultiConditionEvaluator
      org.hyperic.hq.events.server.session.RecoveryConditionEvaluator

All Implemented Interfaces:

AlertConditionEvaluator

public class RecoveryConditionEvaluator
extends MultiConditionEvaluator

Implementation of AlertConditionEvaluator that knows when an AlertTrigger is fired for the alert it is responsible for recovering. It is important to isolate this logic b/c a recovery alert shouldn't fire if condition met events are older than alert fired event (which might happen during a backfill).

Field Summary

Fields inherited from class org.hyperic.hq.events.server.session.MultiConditionEvaluator

timeRange

Constructor Summary

RecoveryConditionEvaluator(java.lang.Integer alertDefinitionId, java.lang.Integer alertTriggerId, java.lang.Integer recoveringFromAlertDefId, java.util.Collection alertConditions, ExecutionStrategy executionStrategy)

RecoveryConditionEvaluator(java.lang.Integer alertDefinitionId, java.lang.Integer alertTriggerId, java.lang.Integer recoveringFromAlertDefId, java.util.Collection alertConditions, ExecutionStrategy executionStrategy, java.util.Map events)

Method Summary

TriggerFiredEvent	getLastAlertFired()
java.io.Serializable	getState() Anything returned from getState() gets persisted to file on server shutdown, which we don't want to do anymore for the recovery alerts.
void	initialize(java.io.Serializable initialState) Initializes this evaluator
void	triggerFired(TriggerFiredEvent event) A trigger was fired, indicating an alert condition evaluated to true
void	triggerNotFired(TriggerNotFiredEvent event) A trigger was not fired, indicating that an alert condition evaluated to false

Methods inherited from class org.hyperic.hq.events.server.session.MultiConditionEvaluator

evaluate, fireConditionsSatisfied, getAlertDefinitionId, getExecutionStrategy, getFulfillingConditions, isExpired

Methods inherited from class java.lang.Object

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

Constructor Detail

RecoveryConditionEvaluator

public RecoveryConditionEvaluator(java.lang.Integer alertDefinitionId,
                                  java.lang.Integer alertTriggerId,
                                  java.lang.Integer recoveringFromAlertDefId,
                                  java.util.Collection alertConditions,
                                  ExecutionStrategy executionStrategy)

Parameters:

alertDefinitionId - The ID of the recovery alert definition

alertTriggerId - The ID of the trigger listening for alert from which we are to recover

alertConditions - The conditions of the recovery alert - excluding the "AlertFired" condition. This should just be the conditions that indicate recovery

executionStrategy - The ExecutionStrategy to use for firing AlertConditionsSatisfied events

RecoveryConditionEvaluator

public RecoveryConditionEvaluator(java.lang.Integer alertDefinitionId,
                                  java.lang.Integer alertTriggerId,
                                  java.lang.Integer recoveringFromAlertDefId,
                                  java.util.Collection alertConditions,
                                  ExecutionStrategy executionStrategy,
                                  java.util.Map events)

Parameters:

alertDefinitionId - The ID of the recovery alert definition

alertTriggerId - The ID of the trigger listening for alert from which we are to recover

alertConditions - The conditions of the recovery alert - excluding the "AlertFired" condition. This should just be the conditions that indicate recovery

executionStrategy - The ExecutionStrategy to use for firing AlertConditionsSatisfied events

events - The collection in which to store trigger events

Method Detail

getState

public java.io.Serializable getState()

Anything returned from getState() gets persisted to file on server shutdown, which we don't want to do anymore for the recovery alerts.

Specified by:

getState in interface AlertConditionEvaluator

Overrides:

getState in class MultiConditionEvaluator

Returns:

Any state held by this evaluator that should be persisted between server restarts. May be null if no state saved.

getLastAlertFired

public TriggerFiredEvent getLastAlertFired()

initialize

public void initialize(java.io.Serializable initialState)

Description copied from interface: AlertConditionEvaluator

Initializes this evaluator

Specified by:

initialize in interface AlertConditionEvaluator

Overrides:

initialize in class MultiConditionEvaluator

Parameters:

initialState - Any state that was saved by the evaluator with this alertDefinitionId the last time the server was shutdown. May be null if no state saved.

triggerFired

public void triggerFired(TriggerFiredEvent event)

Description copied from interface: AlertConditionEvaluator

A trigger was fired, indicating an alert condition evaluated to true

Specified by:

triggerFired in interface AlertConditionEvaluator

Overrides:

triggerFired in class MultiConditionEvaluator

Parameters:

event - The TriggerFiredEvent representing the data that caused the condition to evaluate to true

triggerNotFired

public void triggerNotFired(TriggerNotFiredEvent event)

Description copied from interface: AlertConditionEvaluator

A trigger was not fired, indicating that an alert condition evaluated to false

Specified by:

triggerNotFired in interface AlertConditionEvaluator

Overrides:

triggerNotFired in class MultiConditionEvaluator

Parameters:

event - The TriggerNotFiredEvent representing the data that caused the condition to evaluate to true