/*

  * 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.krms.impl.repository;

 import org.apache.commons.lang.StringUtils;

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

 import org.kuali.rice.krms.api.repository.KrmsType;

 import org.kuali.rice.krms.api.repository.KrmsTypeService;

 import java.util.*;

 public final class KrmsTypeServiceImpl implements KrmsTypeService {

     private BusinessObjectService businessObjectService;

     @Override

     public KrmsType getTypeById(final String id) {

         if (StringUtils.isBlank(id)) {

             throw new IllegalArgumentException("id is blank");

         }

         KrmsTypeBo krmsTypeBo = businessObjectService.findByPrimaryKey(KrmsTypeBo.class, Collections.singletonMap("id", id));

         return KrmsTypeBo.to(krmsTypeBo);

     }

     @Override

     public KrmsType getTypeByNameAndNamespace(final String name, final String namespace) {

         if (StringUtils.isBlank(name)) {

             throw new IllegalArgumentException("name is blank");

         }

         if (StringUtils.isBlank(namespace)) {

             throw new IllegalArgumentException("namespace is blank");

         }

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

         map.put("name", name);

         map.put("namespace", namespace);

         Collection<KrmsTypeBo> typeList = businessObjectService.findMatching(KrmsTypeBo.class, Collections.unmodifiableMap(map));

         if (typeList == null || typeList.isEmpty()) {

             return null;

         } else if (typeList.size() == 1) {

             return KrmsTypeBo.to(typeList.iterator().next());

         } else throw new IllegalStateException("Multiple KRMS types found with same name and namespace");

     }

     @Override

     public List<KrmsType> findAllTypesByNamespace(final String namespace) {

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

         map.put("namespace", namespace);

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

         Collection<KrmsTypeBo> krmsTypeBos = businessObjectService.findMatching(KrmsTypeBo.class, Collections.unmodifiableMap(map));

         return convertListOfBosToImmutables(krmsTypeBos);

     }

     @Override

     public List<KrmsType> findAllTypes() {

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

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

         Collection<KrmsTypeBo> krmsTypeBos = businessObjectService.findMatching(KrmsTypeBo.class, Collections.unmodifiableMap(map));

         return convertListOfBosToImmutables(krmsTypeBos);

     }

     /**

      * Sets the businessObjectService attribute value.

      *

      * @param businessObjectService The businessObjectService to set.

      */

     public void setBusinessObjectService(final BusinessObjectService businessObjectService) {

         this.businessObjectService = businessObjectService;

     }

     /**

      * Converts a List<CountryBo> to an Unmodifiable List<Country>

      *

      * @param countryBos a mutable List<CountryBo> to made completely immutable.

      * @return An unmodifiable List<Country>

      */

     List<KrmsType> convertListOfBosToImmutables(final Collection<KrmsTypeBo> krmsTypeBos) {

         ArrayList<KrmsType> krmsTypes = new ArrayList<KrmsType>();

         for (KrmsTypeBo bo : krmsTypeBos) {

             KrmsType krmsType = KrmsTypeBo.to(bo);

             krmsTypes.add(krmsType);

         }

         return Collections.unmodifiableList(krmsTypes);

     }

 }