Package org.apache.sysds.runtime.privacy

Class PrivacyUtils

java.lang.Object

org.apache.sysds.runtime.privacy.PrivacyUtils

public class PrivacyUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
PrivacyUtils()

Method Summary

Modifier and Type	Method	Description
static PrivacyConstraint.PrivacyLevel	getGeneralPrivacyLevel(PrivacyConstraint privacyConstraint)
static PrivacyConstraint.PrivacyLevel[]	getGeneralPrivacyLevels(PrivacyConstraint[] privacyConstraints)
static boolean	privacyConstraintActivated(PrivacyConstraint constraint)	Returns true if the privacy constraint is not null and the privacy level is set to Private or PrivateAggregation.
static boolean	privacyConstraintFineGrainedActivated(PrivacyConstraint constraint)	Returns true if the privacy constraint is not null and it has fine-grained constraints.
static void	putFineGrainedConstraintsFromString(FineGrainedPrivacy fineGrainedPrivacy, String fgPrivacyValue)
static void	setFineGrainedPrivacy(PrivacyConstraint privacyConstraint, Expression eFineGrainedPrivacy)
static boolean	someConstraintSetBinary(PrivacyConstraint... privacyConstraints)	Returns true if some constraints are set for either of two input privacy constraints.
static boolean	someConstraintSetUnary(PrivacyConstraint privacyConstraint)	Returns true if the constraint is set for the input privacy constraint.

Methods inherited from class java.lang.Object

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

Constructor Detail

PrivacyUtils

public PrivacyUtils()

Method Detail

privacyConstraintActivated

public static boolean privacyConstraintActivated(PrivacyConstraint constraint)

Returns true if the privacy constraint is not null and the privacy level is set to Private or PrivateAggregation. This only works for the general privacy levels, the fine-grained constraints are not checked!

Parameters:

constraint - to check

Returns:

true if the privacy constraint is not null and activated

privacyConstraintFineGrainedActivated

public static boolean privacyConstraintFineGrainedActivated(PrivacyConstraint constraint)

Returns true if the privacy constraint is not null and it has fine-grained constraints.

Parameters:

constraint - to check

Returns:

true if the privacy constraint is not null and has fine-grained constraints

someConstraintSetBinary

public static boolean someConstraintSetBinary(PrivacyConstraint... privacyConstraints)

Returns true if some constraints are set for either of two input privacy constraints. This only checks first two elements in privacy constraint array.

Parameters:

privacyConstraints - input privacy constraints

Returns:

true if one of the two constraints are activated

someConstraintSetUnary

public static boolean someConstraintSetUnary(PrivacyConstraint privacyConstraint)

Returns true if the constraint is set for the input privacy constraint.

Parameters:

privacyConstraint - input to check

Returns:

true if any constraint is activated

getGeneralPrivacyLevel

public static PrivacyConstraint.PrivacyLevel getGeneralPrivacyLevel(PrivacyConstraint privacyConstraint)

getGeneralPrivacyLevels

public static PrivacyConstraint.PrivacyLevel[] getGeneralPrivacyLevels(PrivacyConstraint[] privacyConstraints)

setFineGrainedPrivacy

public static void setFineGrainedPrivacy(PrivacyConstraint privacyConstraint,
                                         Expression eFineGrainedPrivacy)

putFineGrainedConstraintsFromString

public static void putFineGrainedConstraintsFromString(FineGrainedPrivacy fineGrainedPrivacy,
                                                       String fgPrivacyValue)
                                                throws org.apache.wink.json4j.JSONException

Throws:

org.apache.wink.json4j.JSONException