/**

  * 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.type;

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

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

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

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

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

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

 import org.kuali.rice.krms.impl.repository.KrmsRepositoryServiceLocator;

 import org.kuali.rice.krms.impl.util.KRMSServiceLocatorInternal;

 /**

  * Base class for {@link org.kuali.rice.krms.framework.type.RuleTypeService} implementations, providing

  * boilerplate for attribute building and merging from various sources.

  */

 public class RuleTypeServiceBase extends KrmsTypeServiceBase implements RuleTypeService {

     public static final RuleTypeService defaultRuleTypeService = new RuleTypeServiceBase();

     private RepositoryToEngineTranslator translator;

     @Override

     public Rule loadRule(RuleDefinition ruleDefinition) {

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

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

         return new BasicRule(ruleDefinition.getName(),

                 getTranslator().translatePropositionDefinition(ruleDefinition.getProposition()),

                 getTranslator().translateActionDefinitions(ruleDefinition.getActions()));

     }

     public RepositoryToEngineTranslator getTranslator() {

         if (translator == null) {

             translator = KrmsRepositoryServiceLocator.getKrmsRepositoryToEngineTranslator();

         }

         return translator;

     }

     public void setTranslator(RepositoryToEngineTranslator translator) {

         this.translator = translator;

     }

 }