001/**
002 * Copyright 2005-2015 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.rule;
017
018import org.apache.commons.lang.StringUtils;
019import org.kuali.rice.krad.maintenance.MaintenanceDocument;
020import org.kuali.rice.krad.rules.MaintenanceDocumentRuleBase;
021import org.kuali.rice.krms.api.repository.term.TermDefinition;
022import org.kuali.rice.krms.api.repository.term.TermSpecificationDefinition;
023import org.kuali.rice.krms.impl.repository.KrmsRepositoryServiceLocator;
024import org.kuali.rice.krms.impl.repository.TermBo;
025import org.kuali.rice.krms.impl.repository.TermBoService;
026import org.kuali.rice.krms.impl.util.KRMSPropertyConstants;
027
028import java.util.HashMap;
029import java.util.Map;
030
031public class TermBusRule extends MaintenanceDocumentRuleBase {
032
033    @Override
034    protected boolean processCustomSaveDocumentBusinessRules(MaintenanceDocument document) {
035        boolean isValid = true;
036
037        TermBo term = (TermBo) document.getNewMaintainableObject().getDataObject();
038        isValid &= validateId(term);
039        isValid &= validateDescriptionNamespace(term);
040        isValid &= validateTermSpecId(term);
041
042        return isValid;
043    }
044
045    private boolean validateTermSpecId(TermBo term) {
046        if (StringUtils.isBlank(term.getSpecificationId())) {
047            this.putFieldError(KRMSPropertyConstants.Term.TERM_SPECIFICATION_ID, "error.term.invalidTermSpecification");
048            return false;
049        }
050
051        TermSpecificationDefinition termSpec =
052                KrmsRepositoryServiceLocator.getTermBoService().getTermSpecificationById(term.getSpecificationId());
053
054        if (termSpec == null) {
055            this.putFieldError(KRMSPropertyConstants.Term.TERM_SPECIFICATION_ID, "error.term.invalidTermSpecification");
056            return false;
057        }
058
059        return true;
060    }
061
062    private boolean validateId(TermBo term) {
063        if (StringUtils.isNotBlank(term.getId())) {
064            TermDefinition termInDatabase = getTermBoService().getTerm(term.getId());
065            if ((termInDatabase  != null) && (!StringUtils.equals(termInDatabase.getId(), term.getId()))) {
066                this.putFieldError(KRMSPropertyConstants.Term.TERM_ID, "error.term.duplicateId");
067                return false;
068            }
069        }
070
071        return true;
072    }
073
074    /**
075     * Check if the name-namespace pair already exist.
076     * @param term
077     * @return true if the name-namespace pair is unique, false otherwise
078     */
079    private boolean validateDescriptionNamespace(TermBo term) {
080        if (term.getSpecification() != null && StringUtils.isNotBlank(term.getDescription()) && StringUtils.isNotBlank(
081                term.getSpecification().getNamespace())) {
082
083            Map<String, String> criteria = new HashMap<String, String>();
084
085            criteria.put("description", term.getDescription());
086            criteria.put("specification.namespace", term.getSpecification().getNamespace());
087
088            TermBo termInDatabase = getBoService().findByPrimaryKey(TermBo.class, criteria);
089
090            if((termInDatabase != null) && (!StringUtils.equals(termInDatabase.getId(), term.getId()))) {
091                this.putFieldError(KRMSPropertyConstants.Term.DESCRIPTION, "error.term.duplicateNameNamespace");
092                return false;
093            }
094        }
095
096        return true;
097    }
098
099    public TermBoService getTermBoService() {
100        return KrmsRepositoryServiceLocator.getTermBoService();
101    }
102
103}