/*

  * Copyright 2007 The Kuali Foundation

  *

  * Licensed under the Educational Community License, Version 1.0 (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/ecl1.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.document;

 import org.apache.commons.lang.StringUtils;

 import org.apache.struts.upload.FormFile;

 import org.kuali.rice.kns.maintenance.Maintainable;

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

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

 import javax.persistence.Transient;

 import java.io.FileNotFoundException;

 import java.io.IOException;

 /**

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

  */

 public class MaintenanceDocumentBase extends org.kuali.rice.krad.document.MaintenanceDocumentBase implements MaintenanceDocument {

     private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(MaintenanceDocumentBase.class);

     @Transient

     protected transient FormFile fileAttachment;

     public MaintenanceDocumentBase() {

         super();

     }

     public MaintenanceDocumentBase(String documentTypeName) {

         super(documentTypeName);

     }

     /**

      * @see org.kuali.rice.krad.document.DocumentBase#getDocumentBusinessObject()

      */

     @Override

     public PersistableBusinessObject getDocumentBusinessObject() {

         return (PersistableBusinessObject) super.getDocumentDataObject();

     }

     /**

      * Checks old maintainable bo has key values

      */

     public boolean isOldBusinessObjectInDocument() {

         boolean isOldBusinessObjectInExistence = false;

         if (getOldMaintainableObject() == null || getOldMaintainableObject().getBusinessObject() == null) {

             isOldBusinessObjectInExistence = false;

         } else {

             isOldBusinessObjectInExistence = getOldMaintainableObject().isOldBusinessObjectInDocument();

         }

         return isOldBusinessObjectInExistence;

     }

     public Maintainable getNewMaintainableObject() {

         return (Maintainable) newMaintainableObject;

     }

     public Maintainable getOldMaintainableObject() {

         return (Maintainable) oldMaintainableObject;

     }

     public FormFile getFileAttachment() {

         return this.fileAttachment;

     }

     public void setFileAttachment(FormFile fileAttachment) {

         this.fileAttachment = fileAttachment;

     }

     public void populateDocumentAttachment() {

         refreshAttachment();

         if (fileAttachment != null && StringUtils.isNotEmpty(fileAttachment.getFileName())) {

             //Populate DocumentAttachment BO

             if (attachment == null) {

                 attachment = new DocumentAttachment();

             }

             byte[] fileContents;

             try {

                 fileContents = fileAttachment.getFileData();

                 if (fileContents.length > 0) {

                     attachment.setFileName(fileAttachment.getFileName());

                     attachment.setContentType(fileAttachment.getContentType());

                     attachment.setAttachmentContent(fileAttachment.getFileData());

                     attachment.setDocumentNumber(getDocumentNumber());

                 }

             } catch (FileNotFoundException e) {

                 LOG.error("Error while populating the Document Attachment", e);

                 throw new RuntimeException("Could not populate DocumentAttachment object", e);

             } catch (IOException e) {

                 LOG.error("Error while populating the Document Attachment", e);

                 throw new RuntimeException("Could not populate DocumentAttachment object", e);

             }

         }

 //        else if(attachment != null) {

 //            //Attachment has been deleted - Need to delete the Attachment Reference Object

 //            deleteAttachment();

 //        }

     }

 }