package org.kuali.student.r2.common.criteria.transform;

 import java.util.ArrayList;

 import java.util.List;

 import java.util.Set;

 import org.kuali.rice.core.api.criteria.CriteriaValue;

 import org.kuali.rice.core.api.criteria.MultiValuedPredicate;

 import org.kuali.rice.core.api.criteria.Predicate;

 import org.kuali.rice.core.api.criteria.SingleValuedPredicate;

 import org.kuali.student.r2.common.criteria.LookupCustomizer.PredicateTransform;

 import static org.kuali.rice.core.api.criteria.PredicateFactory.*;

 public abstract class BaseTransform implements PredicateTransform {

     public BaseTransform() {

     }

     public Predicate createPredicate(final Predicate input, String path) {

         final Predicate attrValue;

         if (input instanceof SingleValuedPredicate) {

             final CriteriaValue<?> value = ((SingleValuedPredicate) input).getValue();

             attrValue = dynConstruct(input.getClass().getSimpleName(), path, value.getValue());

         } else if (input instanceof MultiValuedPredicate) {

             final Set<? extends CriteriaValue<?>> values = ((MultiValuedPredicate) input).getValues();

             List<Object> l = new ArrayList<Object>();

             for (CriteriaValue<?> v : values) {

                 l.add(v.getValue());

             }

             attrValue = dynConstruct(input.getClass().getSimpleName(), path, l.toArray());

         } else {

             attrValue = dynConstruct(input.getClass().getSimpleName(), path);

         }

         return attrValue;

     }

 }