/**
    * Copyright 2005-2012 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.view;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.krad.datadictionary.DocumentEntry;
  import org.kuali.rice.krad.document.Document;
  import org.kuali.rice.krad.document.DocumentViewAuthorizerBase;
  import org.kuali.rice.krad.document.DocumentViewPresentationControllerBase;
  import org.kuali.rice.krad.keyvalues.KeyValuesFinder;
  import org.kuali.rice.krad.service.KRADServiceLocatorWeb;
  import org.kuali.rice.krad.uif.UifConstants;
  
  /**
   * View type for KRAD documents
   * 
   * <p>
   * Provides commons configuration and default behavior applicable to documents
   * in the KRAD module.
   * </p>
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class DocumentView extends FormView {
  	private static final long serialVersionUID = 2251983409572774175L;
  
  	private Class<? extends Document> documentClass;
  
  	private boolean allowsNoteAttachments = true;
  	private boolean allowsNoteFYI = false;
  	private boolean displayTopicFieldInNotes = false;
  
  	private Class<? extends KeyValuesFinder> attachmentTypesValuesFinderClass;
  
  	public DocumentView() {
  		super();
  	}
  
      /**
       * The following initialization is performed:
       *
       * <ul>
       * <li>Retrieve the document entry</li>
       * <li>Set up the document view authorizer and presentation controller</li>
       * </ul>
       *
       * @see org.kuali.rice.krad.uif.container.ContainerBase#performInitialization(org.kuali.rice.krad.uif.view.View,
       *      java.lang.Object)
       */
      @Override
      public void performInitialization(View view, Object model) {
          super.performInitialization(view, model);
  
          // get document entry
          DocumentEntry documentEntry = getDocumentEntryForView();
          pushObjectToContext(UifConstants.ContextVariableNames.DOCUMENT_ENTRY, documentEntry);
  
          // setup authorizer and presentation controller using the configured authorizer and pc for document
          if (getAuthorizer() == null) {
              setAuthorizer(new DocumentViewAuthorizerBase());
          }
  
          if (getAuthorizer() instanceof DocumentViewAuthorizerBase) {
              DocumentViewAuthorizerBase documentViewAuthorizerBase = (DocumentViewAuthorizerBase) getAuthorizer();
              if (documentViewAuthorizerBase.getDocumentAuthorizer() == null) {
                  documentViewAuthorizerBase.setDocumentAuthorizerClass(documentEntry.getDocumentAuthorizerClass());
              }
          }
  
          if (getPresentationController() == null) {
              setPresentationController(new DocumentViewPresentationControllerBase());
          }
  
          if (getPresentationController() instanceof DocumentViewPresentationControllerBase) {
              DocumentViewPresentationControllerBase documentViewPresentationControllerBase =
                      (DocumentViewPresentationControllerBase) getPresentationController();
              if (documentViewPresentationControllerBase.getDocumentPresentationController() == null) {
                  documentViewPresentationControllerBase.setDocumentPresentationControllerClass(
                          documentEntry.getDocumentPresentationControllerClass());
              }
          }
      }
  
      /**
       * Retrieves the associated {@link DocumentEntry} for the document view
       *
      * @return DocumentEntry entry (exception thrown if one is not found)
      */
     protected DocumentEntry getDocumentEntryForView() {
         DocumentEntry documentEntry = KRADServiceLocatorWeb.getDocumentDictionaryService().getDocumentEntryByClass(
                 getDocumentClass());
 
         if (documentEntry == null) {
             throw new RuntimeException(
                     "Unable to find document entry for document class: " + getDocumentClass().getName());
         }
 
         return documentEntry;
     }
 
 	public Class<? extends Document> getDocumentClass() {
 		return this.documentClass;
 	}
 
 	public void setDocumentClass(Class<? extends Document> documentClass) {
 		this.documentClass = documentClass;
 	}
 
 	public boolean isAllowsNoteAttachments() {
 		return this.allowsNoteAttachments;
 	}
 
 	public void setAllowsNoteAttachments(boolean allowsNoteAttachments) {
 		this.allowsNoteAttachments = allowsNoteAttachments;
 	}
 
 	public boolean isAllowsNoteFYI() {
 		return this.allowsNoteFYI;
 	}
 
 	public void setAllowsNoteFYI(boolean allowsNoteFYI) {
 		this.allowsNoteFYI = allowsNoteFYI;
 	}
 
 	public boolean isDisplayTopicFieldInNotes() {
 		return this.displayTopicFieldInNotes;
 	}
 
 	public void setDisplayTopicFieldInNotes(boolean displayTopicFieldInNotes) {
 		this.displayTopicFieldInNotes = displayTopicFieldInNotes;
 	}
 
 	public Class<? extends KeyValuesFinder> getAttachmentTypesValuesFinderClass() {
 		return this.attachmentTypesValuesFinderClass;
 	}
 
 	public void setAttachmentTypesValuesFinderClass(Class<? extends KeyValuesFinder> attachmentTypesValuesFinderClass) {
 		this.attachmentTypesValuesFinderClass = attachmentTypesValuesFinderClass;
 	}
 
 }