package org.kuali.rice.kim.api.identity;

 import org.apache.commons.collections.CollectionUtils;

 import org.kuali.rice.core.api.mo.common.Defaultable;

 import org.kuali.rice.core.api.mo.common.active.Inactivatable;

 import java.util.Collection;

 public class EntityUtils {

     private EntityUtils() {

         throw new UnsupportedOperationException("do not call.");

     }

     public static <T extends Defaultable & Inactivatable> T getDefaultItem( Collection<T> collection ) {

                 // find the default entry

         if (CollectionUtils.isEmpty(collection)) {

             return null;

         }

                 for ( T item : collection ) {

                         if ( item.isDefaultValue() && item.isActive() ) {

                                 return (T)item;

                         }

                 }

                 // if no default, return the first

                 for ( T item : collection ) {

                     return item;

                 }

                 // if neither, return null

                 return null;

         }

 }