001/**
002 * Copyright 2005-2016 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.rice.krms.impl.type;
017
018import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;
019import org.kuali.rice.krms.api.repository.rule.RuleDefinition;
020import org.kuali.rice.krms.framework.engine.BasicRule;
021import org.kuali.rice.krms.framework.engine.Rule;
022import org.kuali.rice.krms.framework.type.RuleTypeService;
023import org.kuali.rice.krms.impl.provider.repository.RepositoryToEngineTranslator;
024import org.kuali.rice.krms.impl.repository.KrmsRepositoryServiceLocator;
025
026/**
027 * Base class for {@link org.kuali.rice.krms.framework.type.RuleTypeService} implementations, providing
028 * boilerplate for attribute building and merging from various sources.
029 */
030public class RuleTypeServiceBase extends KrmsTypeServiceBase implements RuleTypeService {
031
032    public static final RuleTypeService defaultRuleTypeService = new RuleTypeServiceBase();
033
034    private RepositoryToEngineTranslator translator;
035
036    @Override
037    public Rule loadRule(RuleDefinition ruleDefinition) {
038            if (ruleDefinition == null) { throw new RiceIllegalArgumentException("ruleDefinition must not be null"); }
039            if (ruleDefinition.getAttributes() == null) { throw new RiceIllegalArgumentException("ruleDefinition must not be null");}
040
041        return new BasicRule(ruleDefinition.getName(),
042                getTranslator().translatePropositionDefinition(ruleDefinition.getProposition()),
043                getTranslator().translateActionDefinitions(ruleDefinition.getActions()));
044    }
045
046    public RepositoryToEngineTranslator getTranslator() {
047        if (translator == null) {
048            translator = KrmsRepositoryServiceLocator.getKrmsRepositoryToEngineTranslator();
049        }
050        return translator;
051    }
052
053    public void setTranslator(RepositoryToEngineTranslator translator) {
054        this.translator = translator;
055    }
056}