/*
    * Copyright 2006-2011 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.rice.shareddata.framework.country;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.util.ConcreteKeyValue;
  import org.kuali.rice.core.api.util.KeyValue;
  import org.kuali.rice.krad.keyvalues.KeyValuesBase;
  import org.kuali.rice.shareddata.api.country.Country;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.Comparator;
  import java.util.List;
  
  /**
   * This is a description of what this class does - wliang don't forget to fill this in.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public abstract class AbstractCountryValuesFinderBase extends KeyValuesBase {
  
      /**
       * Returns a list of countries that will be added to the result of {@link #getKeyValues()}.  Note that the result may
       * be filtered by active status
       *
       * @return
       */
      protected abstract List<Country> retrieveCountriesForValuesFinder();
  
      @Override
      public List<KeyValue> getKeyValues() {
          List<Country> boList = new ArrayList<Country>(retrieveCountriesForValuesFinder());
          List<KeyValue> labels = new ArrayList<KeyValue>(boList.size() + 1);
  
          labels.add(new ConcreteKeyValue("", ""));
  
          Collections.sort(boList, new Comparator<Country>() {
              @Override
              public int compare(Country o1, Country o2) {
                  // some institutions may prefix the country name with an asterisk if the country no longer exists
                  // the country names will be compared without the asterisk
                  String sortValue1 = StringUtils.trim(StringUtils.removeStart(o1.getName(), "*"));
                  String sortValue2 = StringUtils.trim(StringUtils.removeStart(o2.getName(), "*"));
                  return sortValue1.compareToIgnoreCase(sortValue2);
              }
  
          });
  
          for (Country country : boList) {
              if (country.isActive()) {
                  labels.add(new ConcreteKeyValue(country.getCode(), country.getName()));
              }
          }
          return labels;
      }
  }