001/**
002 * Copyright 2005-2018 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.krad.document;
017
018import org.kuali.rice.kim.api.identity.Person;
019import org.kuali.rice.krad.datadictionary.DocumentEntry;
020import org.kuali.rice.krad.service.KRADServiceLocatorWeb;
021import org.kuali.rice.krad.service.PessimisticLockService;
022import org.kuali.rice.krad.uif.UifConstants;
023import org.kuali.rice.krad.uif.view.View;
024import org.kuali.rice.krad.uif.view.ViewModel;
025import org.kuali.rice.krad.web.form.DocumentFormBase;
026
027import java.util.Map;
028
029/**
030 * Extends {@link DocumentViewAuthorizerBase} to add additional authorization behavior to Transactional documents.
031 *
032 * @author Kuali Rice Team (rice.collab@kuali.org)
033 */
034public class TransactionalDocumentViewAuthorizerBase extends DocumentViewAuthorizerBase {
035
036    private static final long serialVersionUID = -6361662425078612737L;
037
038    private PessimisticLockService pessimisticLockService;
039
040    /**
041     * {@inheritDoc}
042     */
043    @Override
044    public boolean canEditView(View view, ViewModel model, Person user) {
045        boolean canEditView = super.canEditView(view, model, user);
046
047        Map<String, Object> context = view.getContext();
048        DocumentEntry documentEntry = (DocumentEntry) context.get(UifConstants.ContextVariableNames.DOCUMENT_ENTRY);
049
050        if (!documentEntry.getUsePessimisticLocking()) {
051            return canEditView;
052        }
053
054        DocumentFormBase documentForm = (DocumentFormBase) model;
055        Document document = documentForm.getDocument();
056
057        return getPessimisticLockService().establishPessimisticLocks(document, user, canEditView);
058    }
059
060    protected PessimisticLockService getPessimisticLockService() {
061        if (pessimisticLockService == null) {
062            pessimisticLockService = KRADServiceLocatorWeb.getPessimisticLockService();
063        }
064
065        return pessimisticLockService;
066    }
067
068    protected void setPessimisticLockService(PessimisticLockService pessimisticLockService) {
069        this.pessimisticLockService = pessimisticLockService;
070    }
071
072}