/**
* Get string representation of the constraint
*
* @param constraint
* @return
*/
public static String getConstraintString(IConstraint constraint) {
String type = constraint.getType();
// only this two supported for the moment
if (type.equals(IConstraint.REQUIRES) || type.equals(IConstraint.MUTUALLY_EXCLUDES)) {
String text = validFeatureName(constraint.getBlock1().getName()) + " implies ";
if (type.equals(IConstraint.MUTUALLY_EXCLUDES)) {
text += "not ";
}
text += validFeatureName(constraint.getBlock2().getName());
return text;
}
return constraint.getText();
}
public static int getNumberOfReasonsOfRequiresConstraint(
List<IConstraint> constraints, Feature f1, Feature f2) {
for (IConstraint constraint : constraints) {
if (constraint.getType().equals(IConstraint.REQUIRES)) {
if (f1.getName().equals(FeatureIDEUtils.validFeatureName(constraint.getBlock1().getName()))
&& f2.getName()
.equals(FeatureIDEUtils.validFeatureName(constraint.getBlock2().getName()))) {
return constraint.getNumberOfReasons();
}
}
}
return -1;
}
public static boolean existsRequiresConstraint(
List<IConstraint> constraints, Feature f1, Feature f2) {
for (IConstraint constraint : constraints) {
if (constraint.getType().equals(IConstraint.REQUIRES)) {
if (f1.getName().equals(FeatureIDEUtils.validFeatureName(constraint.getBlock1().getName()))
&& f2.getName()
.equals(FeatureIDEUtils.validFeatureName(constraint.getBlock2().getName()))) {
return true;
}
}
}
return false;
}
public static List<Feature> getFeatureRequiredFeatures(
FeatureModel fm, List<IConstraint> constraints, Feature f1) {
List<Feature> required = new ArrayList<Feature>();
for (IConstraint constraint : constraints) {
if (constraint.getType().equals(IConstraint.REQUIRES)) {
if (f1.getName()
.equals(FeatureIDEUtils.validFeatureName(constraint.getBlock1().getName()))) {
required.add(
fm.getFeature(FeatureIDEUtils.validFeatureName(constraint.getBlock2().getName())));
}
}
}
return required;
}
public static boolean existsExcludeConstraint(
List<IConstraint> constraints, Feature f1, Feature f2) {
for (IConstraint constraint : constraints) {
if (constraint.getType().equals(IConstraint.MUTUALLY_EXCLUDES)) {
// check f1 excludes f2 and viceversa
if (f1.getName().equals(FeatureIDEUtils.validFeatureName(constraint.getBlock1().getName()))
&& f2.getName()
.equals(FeatureIDEUtils.validFeatureName(constraint.getBlock2().getName()))) {
return true;
} else if (f2.getName()
.equals(FeatureIDEUtils.validFeatureName(constraint.getBlock1().getName()))
&& f1.getName()
.equals(FeatureIDEUtils.validFeatureName(constraint.getBlock2().getName()))) {
return true;
}
}
}
return false;
}