/**

  * Copyright 2005-2011 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.krad.uif.service.impl;

 import java.util.HashMap;

 import java.util.Map;

 import org.kuali.rice.kew.api.exception.WorkflowException;

 import org.kuali.rice.krad.document.Document;

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

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

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

 import org.kuali.rice.krad.uif.UifConstants;

 import org.kuali.rice.krad.uif.UifConstants.ViewType;

 import org.kuali.rice.krad.uif.UifParameters;

 import org.kuali.rice.krad.uif.util.ViewModelUtils;

 import org.kuali.rice.krad.uif.service.ViewTypeService;

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

 import org.springframework.beans.PropertyValues;

 /**

  * Type service implementation for maintenance views

  * 

  * <p>

  * Indexes views on object class and name. Can retrieve views by object class,

  * object class and name, or document id

  * </p>

  * 

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

  */

 public class MaintenanceViewTypeServiceImpl implements ViewTypeService {

         private DocumentService documentService;

     private DocumentDictionaryService documentDictionaryService;

         /**

          * @see org.kuali.rice.krad.uif.service.ViewTypeService#getViewTypeName()

          */

         public ViewType getViewTypeName() {

                 return ViewType.MAINTENANCE;

         }

     /**

      * @see org.kuali.rice.krad.uif.service.ViewTypeService#getParametersFromViewConfiguration(org.springframework.beans.PropertyValues)

      */

     public Map<String, String> getParametersFromViewConfiguration(PropertyValues propertyValues) {

         Map<String, String> parameters = new HashMap<String, String>();

         String viewName = ViewModelUtils.getStringValFromPVs(propertyValues, UifParameters.VIEW_NAME);

         String dataObjectClassName = ViewModelUtils.getStringValFromPVs(propertyValues,

                 UifParameters.DATA_OBJECT_CLASS_NAME);

         parameters.put(UifParameters.VIEW_NAME, viewName);

         parameters.put(UifParameters.DATA_OBJECT_CLASS_NAME, dataObjectClassName);

         return parameters;

     }

         /**

          * Check for document id in request parameters, if given retrieve document

          * instance to get the object class and set the name parameter

          * 

          * @see org.kuali.rice.krad.uif.service.ViewTypeService#getParametersFromRequest(java.util.Map)

          */

         @Override

         public Map<String, String> getParametersFromRequest(Map<String, String> requestParameters) {

                 Map<String, String> parameters = new HashMap<String, String>();

                 if (requestParameters.containsKey(UifParameters.VIEW_NAME)) {

                         parameters.put(UifParameters.VIEW_NAME, requestParameters.get(UifParameters.VIEW_NAME));

                 }

                 else {

                         parameters.put(UifParameters.VIEW_NAME, UifConstants.DEFAULT_VIEW_NAME);

                 }

                 if (requestParameters.containsKey(UifParameters.DATA_OBJECT_CLASS_NAME)) {

                         parameters.put(UifParameters.DATA_OBJECT_CLASS_NAME,

                                         requestParameters.get(UifParameters.DATA_OBJECT_CLASS_NAME));

                 }

                 else if (requestParameters.containsKey(KRADPropertyConstants.DOC_ID)) {

                         String documentNumber = requestParameters.get(KRADPropertyConstants.DOC_ID);

                         boolean objectClassFound = false;

                         try {

                                 // determine object class based on the document type

                                 Document document = documentService.getByDocumentHeaderId(documentNumber);

                                 if (document != null) {

                                         String docTypeName = document.getDocumentHeader().getWorkflowDocument().getDocumentTypeName();

                                         Class<?> objectClassName = getDocumentDictionaryService().getMaintenanceDataObjectClass(docTypeName);

                                         if (objectClassName != null) {

                                                 objectClassFound = true;

                                                 parameters.put(UifParameters.DATA_OBJECT_CLASS_NAME, objectClassName.getName());

                                         }

                                 }

                                 if (!objectClassFound) {

                                         throw new RuntimeException("Could not determine object class for maintenance document with id: "

                                                         + documentNumber);

                                 }

                         }

                         catch (WorkflowException e) {

                                 throw new RuntimeException("Encountered workflow exception while retrieving document with id: "

                                                 + documentNumber, e);

                         }

                 }

                 return parameters;

         }

         protected DocumentService getDocumentService() {

         if (documentService == null) {

             this.documentService = KRADServiceLocatorWeb.getDocumentService();

         }

                 return this.documentService;

         }

         public void setDocumentService(DocumentService documentService) {

                 this.documentService = documentService;

         }

     public DocumentDictionaryService getDocumentDictionaryService() {

         if (documentDictionaryService == null) {

             this.documentDictionaryService = KRADServiceLocatorWeb.getDocumentDictionaryService();

         }

         return documentDictionaryService;

     }

     public void setDocumentDictionaryService(DocumentDictionaryService documentDictionaryService) {

         this.documentDictionaryService = documentDictionaryService;

     }

 }