/*
* ARX: Powerful Data Anonymization
* Copyright 2012 - 2017 Fabian Prasser, Florian Kohlmayer and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.deidentifier.arx.gui.model;
import org.deidentifier.arx.DataGeneralizationScheme;
import org.deidentifier.arx.DataGeneralizationScheme.GeneralizationDegree;
import org.deidentifier.arx.criteria.EDDifferentialPrivacy;
import org.deidentifier.arx.criteria.PrivacyCriterion;
import org.deidentifier.arx.gui.resources.Resources;
import org.deidentifier.arx.gui.view.SWTUtil;
/**
* This class implements a model for the (e,d)-DP criterion.
*
* @author Fabian Prasser
*/
public class ModelDifferentialPrivacyCriterion extends ModelImplicitCriterion{
/** SVUID */
private static final long serialVersionUID = 1803345324372136700L;
/** Epsilon */
private double epsilon = 2d;
/** Delta */
private double delta = 0.000001d;
/** Generalization scheme */
private DataGeneralizationScheme generalization = DataGeneralizationScheme.create(GeneralizationDegree.MEDIUM);
/**
* Creates a new instance
*/
public ModelDifferentialPrivacyCriterion() {
// Empty by design
}
/**
* Creates a new instance
* @param epsilon
* @param delta
*/
public ModelDifferentialPrivacyCriterion(double epsilon, double delta) {
this.epsilon = epsilon;
this.delta = delta;
}
@Override
public ModelDifferentialPrivacyCriterion clone() {
ModelDifferentialPrivacyCriterion result = new ModelDifferentialPrivacyCriterion();
result.epsilon = this.epsilon;
result.delta = this.delta;
result.generalization = this.generalization.clone();
result.setEnabled(this.isEnabled());
return result;
}
@Override
public PrivacyCriterion getCriterion(Model model) {
return new EDDifferentialPrivacy(epsilon, delta, generalization);
}
/**
* Getter
* @return
*/
public double getDelta() {
return delta;
}
/**
* Getter
* @return
*/
public double getEpsilon() {
return epsilon;
}
/**
* Getter
* @return
*/
public DataGeneralizationScheme getGeneralization() {
return generalization;
}
@Override
public String getLabel() {
return "(" + '\u03B5' + ", " + '\u03B4' + ")" + Resources.getMessage("ModelCriterion.3"); //$NON-NLS-1$
}
@Override
public void parse(ModelCriterion criterion, boolean _default) {
if (!(criterion instanceof ModelDifferentialPrivacyCriterion)) {
return;
}
ModelDifferentialPrivacyCriterion other = (ModelDifferentialPrivacyCriterion)criterion;
this.epsilon = other.epsilon;
this.delta = other.delta;
if (!_default) {
this.generalization = other.generalization.clone();
}
if (!_default) {
this.setEnabled(other.isEnabled());
}
}
/**
* Setter
* @param delta
*/
public void setDelta(double delta) {
this.delta = delta;
}
/**
* Setter
* @param epsilon
*/
public void setEpsilon(double epsilon) {
this.epsilon = epsilon;
}
/**
* Setter
* @param generalization
*/
public void setGeneralization(DataGeneralizationScheme generalization) {
this.generalization = generalization;
}
@Override
public String toString() {
return "(" + SWTUtil.getPrettyString(epsilon) + ", " + SWTUtil.getPrettyString(delta) + ")" + Resources.getMessage("ModelCriterion.2"); //$NON-NLS-1$
}
}