com.cosylab.acs.laser.dao.utils

Class LinkSpec

java.lang.Object

com.cosylab.acs.laser.dao.utils.LinkSpec

public class LinkSpec
extends java.lang.Object

Class representing a link specification between the two nodes of a reduction rule, and that is capable of recognizing if a given Alarm matches the reduction rule definition, considering that the latter might include patterns (e.g., 'a*b') for both fault-family and fault-member fields on the reduction rule parent node.

Reduction rules that include patterns must obey the following rule:

• For NODE RRs, a single parent (cause) has several children (effects). Therefore, the RR might include patterns only for the children alarm definition.
• For MULTIPLICITY RRs, a single child (synthetic alarm) reduces a set of alarms that relate somehow (causes). Therefore, the RR might include patterns only for the parent alarm definition.

This rules does not mean that errors will appear if a pattern expression is present where it shouldn't; no error will occur, but instead the pattern will be treated as an ordinary string. For example, if the user specifies a fault family DV*, it will not match all fault families DV01, DV02, ..., but instead it will match the fault family named DV*.

Author:

acaproni, rtobar

Field Summary

Fields

Modifier and Type	Field and Description
AlarmRefMatcher	_child
boolean	_isMultiplicity
AlarmRefMatcher	_parent

Constructor Summary

Constructors

Constructor and Description
LinkSpec(ReductionLinkType link)

Method Summary

Modifier and Type	Method and Description
boolean	isMultiplicity()
boolean	matchChild(Alarm child) Reports if a given Alarm matches as a child, based on the patterns present in the reduction rule's child definition.
boolean	matchParent(Alarm parent) Reports if a given Alarm matches as a parent, based on the patterns present in the reduction rule's parent definition.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

_parent

public final AlarmRefMatcher _parent

_child

public final AlarmRefMatcher _child

_isMultiplicity

public final boolean _isMultiplicity

Constructor Detail

LinkSpec

public LinkSpec(ReductionLinkType link)

Method Detail

matchParent

public boolean matchParent(Alarm parent)

Reports if a given Alarm matches as a parent, based on the patterns present in the reduction rule's parent definition.

Parameters:

parent - The alarm to be checked as occupying the parent role in the reduction rule

Returns:

Whether the alarm is parent for the reduction rule or not.

matchChild

public boolean matchChild(Alarm child)

Reports if a given Alarm matches as a child, based on the patterns present in the reduction rule's child definition.

Parameters:

child - The alarm to be checked as occupying the child role in the reduction rule

Returns:

Whether the alarm is child for the reduction rule or not.

isMultiplicity

public boolean isMultiplicity()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object