/**

  * 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.krms.impl.validation;

 import org.apache.commons.lang.StringUtils;

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

 import org.kuali.rice.core.api.uif.RemotableAttributeField;

 import org.kuali.rice.krms.api.repository.rule.RuleDefinition;

 import org.kuali.rice.krms.framework.engine.Rule;

 import org.kuali.rice.krms.framework.type.ValidationRuleType;

 import org.kuali.rice.krms.framework.type.ValidationRuleTypeService;

 import org.kuali.rice.krms.impl.provider.repository.RepositoryToEngineTranslator;

 import org.kuali.rice.krms.impl.type.KrmsTypeServiceBase;

 import javax.jws.WebParam;

 import java.util.List;

 /**

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public final class ValidationRuleTypeServiceImpl extends KrmsTypeServiceBase implements ValidationRuleTypeService {

     private RepositoryToEngineTranslator translator;

     /**

      * private constructor to enforce use of static factory

      */

     private ValidationRuleTypeServiceImpl(){

         super();

     }

     /**

      * Factory method for getting a {@link ValidationRuleTypeService}

      * @return a {@link ValidationRuleTypeService} corresponding to the given {@link ValidationRuleType}.

      */

     public static ValidationRuleTypeService getInstance() {

         return new ValidationRuleTypeServiceImpl();

     }

     @Override

     public Rule loadRule(RuleDefinition validationRuleDefinition) {

         if (validationRuleDefinition == null) { throw new RiceIllegalArgumentException("validationRuleDefinition must not be null"); }

         if (validationRuleDefinition.getAttributes() == null) { throw new RiceIllegalArgumentException("validationRuleDefinition must not be null");}

         if (!validationRuleDefinition.getAttributes().containsKey(ValidationRuleTypeService.VALIDATIONS_RULE_TYPE_CODE_ATTRIBUTE)) {

             throw new RiceIllegalArgumentException("validationRuleDefinition does not contain an " +

                     ValidationRuleTypeService.VALIDATIONS_RULE_TYPE_CODE_ATTRIBUTE + " attribute");

         }

         String validationRuleTypeCode = validationRuleDefinition.getAttributes().get(ValidationRuleTypeService.VALIDATIONS_RULE_TYPE_CODE_ATTRIBUTE);

         if (StringUtils.isBlank(validationRuleTypeCode)) {

             throw new RiceIllegalArgumentException(ValidationRuleTypeService.VALIDATIONS_RULE_TYPE_CODE_ATTRIBUTE + " attribute must not be null or blank");

         }

         if (ValidationRuleType.VALID.getCode().equals(validationRuleTypeCode)) {

             return new ValidationRule(ValidationRuleType.VALID, validationRuleDefinition.getName(),

                     translator.translatePropositionDefinition(validationRuleDefinition.getProposition()),

                     translator.translateActionDefinitions(validationRuleDefinition.getActions()));

         }

         if (ValidationRuleType.INVALID.getCode().equals(validationRuleTypeCode)) {

             return new ValidationRule(ValidationRuleType.INVALID, validationRuleDefinition.getName(),

                     translator.translatePropositionDefinition(validationRuleDefinition.getProposition()),

                     translator.translateActionDefinitions(validationRuleDefinition.getActions()));

         }

         return null;

     }

     @Override

     public List<RemotableAttributeField> getAttributeFields(@WebParam(name = "krmsTypeId") String krmsTypeId) throws RiceIllegalArgumentException {

         RadioButtonTypeServiceUtil radioButtonTypeServiceUtil = new RadioButtonTypeServiceUtil();

         return radioButtonTypeServiceUtil.getAttributeFields(krmsTypeId);

     }

     /**

      * @param translator the RepositoryToEngineTranslator to set

      */

     public void setRepositoryToEngineTranslator(RepositoryToEngineTranslator translator) {

         this.translator = translator;

     }

 }