/**

  * Copyright 2005-2011 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.location.impl.state;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;

 import org.kuali.rice.core.api.exception.RiceIllegalStateException;

 import org.kuali.rice.krad.service.BusinessObjectService;

 import org.kuali.rice.location.api.country.Country;

 import org.kuali.rice.location.api.country.CountryService;

 import org.kuali.rice.location.api.services.LocationApiServiceLocator;

 import org.kuali.rice.location.api.state.State;

 import org.kuali.rice.location.api.state.StateService;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.Collections;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 public class StateServiceImpl implements StateService {

     private BusinessObjectService businessObjectService;

     private CountryService countryService;

     @Override

     public State getState(String countryCode, String code) {

         if (StringUtils.isBlank(countryCode)) {

             throw new RiceIllegalArgumentException(("countryCode is null"));

         }

         if (StringUtils.isBlank(code)) {

             throw new RiceIllegalArgumentException(("code is null"));

         }

         final Map<String, Object> map = new HashMap<String, Object>();

         map.put("countryCode", countryCode);

         map.put("code", code);

         return StateBo.to(businessObjectService.findByPrimaryKey(StateBo.class, Collections.unmodifiableMap(map)));

     }

     @Override

     public List<State> findAllStatesInCountry(String countryCode) {

         if (StringUtils.isBlank(countryCode)) {

             throw new RiceIllegalArgumentException(("countryCode is null"));

         }

         final Map<String, Object> map = new HashMap<String, Object>();

         map.put("countryCode", countryCode);

         map.put("active", Boolean.TRUE);

         final Collection<StateBo> bos = businessObjectService.findMatching(StateBo.class, Collections.unmodifiableMap(map));

         if (bos == null) {

             return Collections.emptyList();

         }

         final List<State> toReturn = new ArrayList<State>();

         for (StateBo bo : bos) {

             if (bo != null && bo.isActive()) {

                 toReturn.add(StateBo.to(bo));

             }

         }

         return Collections.unmodifiableList(toReturn);

     }

     @Override

     public List<State> findAllStatesInCountryByAltCode(String alternateCode) {

         if (StringUtils.isBlank(alternateCode)) {

             throw new RiceIllegalArgumentException(("alternateCode is null"));

         }

         Country country = getCountryService().getCountryByAlternateCode(alternateCode);

         if(country == null) {

             throw new RiceIllegalStateException("The alternateCode is not a valid Alternate Postal Country Code.  alternateCode: " + alternateCode);

         }

         final List<State> toReturn = findAllStatesInCountry(country.getCode());

         return Collections.unmodifiableList(toReturn);

     }

     public CountryService getCountryService() {

         if (countryService == null) {

             countryService = LocationApiServiceLocator.getCountryService();

         }

         return countryService;

     }   

     public void setCountryService(CountryService countryService) {

         this.countryService = countryService;

     }

     public void setBusinessObjectService(BusinessObjectService businessObjectService) {

         this.businessObjectService = businessObjectService;

     }

 }