List<ProductSearchConstraint> constraintList = ProductSearchOptions.getConstraintList(session);
if (constraintList != null) {
for (ProductSearchConstraint constraint: constraintList) {
if (constraint instanceof KeywordConstraint) {
KeywordConstraint keywordConstraint = (KeywordConstraint) constraint;
Set<String> keywordSet = keywordConstraint.makeFullKeywordSet(delegator);
if (keywordSet != null) keywords.addAll(keywordSet);
}
}
}