Interface AlarmActionHandler

All Superinterfaces:

Serializable

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface AlarmActionHandler
extends Serializable

Interface for handling alarm-triggered actions.

This interface allows automatic responses to alarm events, such as:

• Control adjustments (valve throttling, flow reduction)
• Safety logic activation (ESD, HIPPS)
• Operator notifications
• Logging and reporting

Version:

1.0

Author:

ESOL

Method Summary

Modifier and Type	Method	Description
static AlarmActionHandler	activateLogic(String sourceName, AlarmLevel level, AlarmEventType eventType, ProcessLogic logic)	Creates a handler that activates process logic when alarm conditions are met.
static AlarmActionHandler	activateLogicOnHIHI(String sourceName, ProcessLogic logic)	Creates a handler that activates process logic when HIHI alarm is activated.
static AlarmActionHandler	activateLogicOnLOLO(String sourceName, ProcessLogic logic)	Creates a handler that activates process logic when LOLO alarm is activated.
static AlarmActionHandler	composite(List<AlarmActionHandler> handlers)	Creates a composite handler that executes multiple handlers in sequence.
default String	getActionDescription()	Returns a description of the action this handler performs.
default int	getPriority()	Returns the priority of this handler (higher values execute first).
boolean	handle(AlarmEvent event)	Handles an alarm event and performs the configured action.

Method Details

handle

boolean handle(AlarmEvent event)

Handles an alarm event and performs the configured action.

Parameters:

event - the alarm event that triggered this handler

Returns:

true if action was taken, false otherwise

getPriority

default int getPriority()

Returns the priority of this handler (higher values execute first).

Returns:

handler priority

getActionDescription

default String getActionDescription()

Returns a description of the action this handler performs.

Returns:

action description

activateLogic

static AlarmActionHandler activateLogic(String sourceName,
 AlarmLevel level,
 AlarmEventType eventType,
 ProcessLogic logic)

Creates a handler that activates process logic when alarm conditions are met.

Parameters:

sourceName - the alarm source name to match (e.g., "PT-101")

level - the alarm level to match (HIHI, HI, LO, LOLO)

eventType - the event type to match (ACTIVATED, CLEARED, ACKNOWLEDGED)

logic - the process logic to activate

Returns:

alarm action handler

activateLogicOnHIHI

static AlarmActionHandler activateLogicOnHIHI(String sourceName,
 ProcessLogic logic)

Creates a handler that activates process logic when HIHI alarm is activated.

Parameters:

sourceName - the alarm source name to match

logic - the process logic to activate

Returns:

alarm action handler

activateLogicOnLOLO

static AlarmActionHandler activateLogicOnLOLO(String sourceName,
 ProcessLogic logic)

Creates a handler that activates process logic when LOLO alarm is activated.

Parameters:

sourceName - the alarm source name to match

logic - the process logic to activate

Returns:

alarm action handler

composite

static AlarmActionHandler composite(List<AlarmActionHandler> handlers)

Creates a composite handler that executes multiple handlers in sequence.

Parameters:

handlers - list of handlers to execute

Returns:

composite alarm action handler