/*

  * Copyright 2007-2008 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.kns.web.struts.action;

 import org.apache.commons.lang.StringUtils;

 import org.apache.struts.action.ActionForm;

 import org.apache.struts.action.ActionForward;

 import org.apache.struts.action.ActionMapping;

 import org.kuali.rice.core.api.util.RiceConstants;

 import org.kuali.rice.kns.web.struts.form.DisplayInactivationBlockersForm;

 import org.kuali.rice.krad.bo.BusinessObject;

 import org.kuali.rice.krad.datadictionary.InactivationBlockingMetadata;

 import org.kuali.rice.krad.service.DataDictionaryService;

 import org.kuali.rice.krad.service.InactivationBlockingDisplayService;

 import org.kuali.rice.krad.service.KRADServiceLocatorInternal;

 import org.kuali.rice.krad.service.KRADServiceLocatorWeb;

 import org.kuali.rice.krad.util.ObjectUtils;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import java.util.List;

 import java.util.Map;

 import java.util.Set;

 import java.util.TreeMap;

 /**

  * This is a description of what this class does - wliang don't forget to fill this in. 

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  *

  */

 public class DisplayInactivationBlockersAction extends KualiAction {

         public ActionForward displayAllInactivationBlockers(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {

                 DisplayInactivationBlockersForm displayInactivationBlockersForm = (DisplayInactivationBlockersForm) form;

                 DataDictionaryService dataDictionaryService = KRADServiceLocatorWeb.getDataDictionaryService();

                 InactivationBlockingDisplayService inactivationBlockingDisplayService = KRADServiceLocatorInternal.getInactivationBlockingDisplayService();

                 Class blockedBoClass = Class.forName(displayInactivationBlockersForm.getBusinessObjectClassName());

                 BusinessObject blockedBo = (BusinessObject) blockedBoClass.newInstance();

                 for (String key : displayInactivationBlockersForm.getPrimaryKeyFieldValues().keySet()) {

                         ObjectUtils.setObjectProperty(blockedBo, key, displayInactivationBlockersForm.getPrimaryKeyFieldValues().get(key));

                 }

                 Map<String, List<String>> allBlockers = new TreeMap<String, List<String>>();

                 Set<InactivationBlockingMetadata> inactivationBlockers = dataDictionaryService.getAllInactivationBlockingDefinitions(blockedBoClass);

                 for (InactivationBlockingMetadata inactivationBlockingMetadata : inactivationBlockers) {

                         String blockingBoLabel = dataDictionaryService.getDataDictionary().getBusinessObjectEntry(inactivationBlockingMetadata.getBlockingReferenceBusinessObjectClass().getName()).getObjectLabel();

                         String relationshipLabel = inactivationBlockingMetadata.getRelationshipLabel();

                         String displayLabel;

                         if (StringUtils.isEmpty(relationshipLabel)) {

                                 displayLabel = blockingBoLabel;

                         }

                         else {

                                 displayLabel = blockingBoLabel + " (" + relationshipLabel + ")";

                         }

                         List<String> blockerObjectList = inactivationBlockingDisplayService.listAllBlockerRecords(blockedBo, inactivationBlockingMetadata);

                         if (!blockerObjectList.isEmpty()) {

                                 List<String> existingList = allBlockers.get(displayLabel);

                                 if (existingList != null) {

                                         existingList.addAll(blockerObjectList);

                                 }

                                 else {

                                         allBlockers.put(displayLabel, blockerObjectList);

                                 }

                         }

                 }

                 displayInactivationBlockersForm.setBlockingValues(allBlockers);

                 return mapping.findForward(RiceConstants.MAPPING_BASIC);

         }

 }