001/**
002 * Copyright 2005-2012 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.ui;
017
018import org.kuali.rice.krad.service.BusinessObjectService;
019import org.kuali.rice.krad.service.KRADServiceLocator;
020import org.kuali.rice.krms.api.repository.proposition.PropositionParameterType;
021import org.kuali.rice.krms.api.repository.proposition.PropositionType;
022import org.kuali.rice.krms.impl.repository.PropositionBo;
023import org.kuali.rice.krms.impl.repository.PropositionParameterBo;
024import org.kuali.rice.krms.impl.repository.TermBo;
025
026import java.io.Serializable;
027import java.util.List;
028
029/**
030 * abstract data class for the rule tree {@link Node}s
031 * 
032 * @author Kuali Rice Team (rice.collab@kuali.org)
033 *
034 */
035public class SimplePropositionNode extends RuleTreeNode {
036    private static final long serialVersionUID = -629088492909384804L;
037    public static final String NODE_TYPE = "ruleTreeNode simplePropositionNode";
038    protected String parameterDisplayString;
039
040    // needed for inquiry view
041    public SimplePropositionNode() {
042    }
043
044    public SimplePropositionNode(PropositionBo proposition){
045        super(proposition);
046        setupParameterDisplayString();
047    }
048    
049    private void setupParameterDisplayString(){
050        if (proposition != null && proposition.getPropositionTypeCode().equalsIgnoreCase(PropositionType.SIMPLE.getCode())){
051            // Simple Propositions should have 3 parameters ordered in reverse polish notation.
052            // TODO: enhance to get term names for term type parameters.
053            List<PropositionParameterBo> parameters = proposition.getParameters();
054            if (parameters != null && parameters.size() == 3){
055                setParameterDisplayString(getParamValue(parameters.get(0)) 
056                        + " " + getParamValue(parameters.get(2))
057                        + " " + getParamValue(parameters.get(1)));
058            } else {
059                // should not happen
060            }
061        }
062    }
063    
064    private String getParamValue(PropositionParameterBo prop){
065        if (PropositionParameterType.TERM.getCode().equalsIgnoreCase(prop.getParameterType())){
066            //TODO: use termBoService
067            String termId = prop.getValue();
068            TermBo term = getBoService().findBySinglePrimaryKey(TermBo.class,termId);
069            if (term!=null){
070                return term.getSpecification().getName();
071            }
072            return "";
073        } else {
074            return prop.getValue();
075        }
076    }
077    /**
078     * @return the parameterDisplayString
079     */
080    public String getParameterDisplayString() {
081        return this.parameterDisplayString;
082    }
083
084    /**
085     * @param parameterDisplayString the parameterDisplayString to set
086     */
087    public void setParameterDisplayString(String parameterDisplayString) {
088        this.parameterDisplayString = parameterDisplayString;
089    }
090
091    public BusinessObjectService getBoService() {
092        return KRADServiceLocator.getBusinessObjectService();
093    }
094    
095}