/*
    * Copyright 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.ole.web;
  
  import org.apache.commons.fileupload.FileItem;
  import org.apache.commons.fileupload.FileUploadException;
  import org.apache.commons.fileupload.disk.DiskFileItemFactory;
  import org.apache.commons.fileupload.servlet.ServletFileUpload;
  import org.apache.commons.io.FilenameUtils;
  
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import java.io.IOException;
  import java.util.*;
  
  /**
  * User: Peri Subrahmanya
  * Date: 4/7/11
  * Time: 11:30 AM
  * To change this template use File | Settings | File Templates.
  */
  public class CheckinServlet extends HttpServlet {
      private static final String RESULTS_JSP =
              "/checkinResults.jsp";
      private Map<String, String> fieldsMap;
      private HashMap<String, FileItem> fileItemMap;
  
      @Override
      protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
          List<FileItem> items = null;
          try {
              items = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(req);
          } catch (FileUploadException e) {
              throw new ServletException("Cannot parse multipart request.", e);
          }
          for (FileItem item : items) {
              if (item.isFormField()) {
                  getFieldsMap().put(item.getFieldName(), item.getString());
              }
          }
  
          for (FileItem item : items) {
              String filename = FilenameUtils.getName(item.getName());
              fileItemMap = new HashMap<String, FileItem>();
              fileItemMap.put(filename, item);
              getFieldsMap().put("fileName", filename);
          }
          callService(req, resp);
      }
  
      private void callService(HttpServletRequest req, HttpServletResponse resp) throws IOException {
  //        try {
  //            getDocumentStoreContentManager().checkin(null, getUUID(), "webappUser", "CheckinServlet.callService()");
  //            RequestDispatcher rd = getServletContext().getRequestDispatcher(RESULTS_JSP);
  //            req.setAttribute("result", "Successfully checked in");
  //            rd.forward(req, resp);
  //        } catch (Exception e) {
  //            e.printStackTrace();
  //            PrintWriter out = resp.getWriter();
  //            out.println("Problem checking the file! Please refer application logs for details");
  //            out.flush();
  //            out.close();
  //        }
      }
  
      public Map<String, String> getFieldsMap() {
          if (null == fieldsMap) {
              fieldsMap = new HashMap<String, String>();
          }
          return fieldsMap;
      }
  
      private String getUUID() {
          Set<String> strings = getFieldsMap().keySet();
          for (Iterator<String> iterator = strings.iterator(); iterator.hasNext();) {
              String key = iterator.next();
              if (key.equals("uuid")) {
                  return getFieldsMap().get(key);
              }
          }
          return null;
      }
  
      public HashMap<String, FileItem> getFileItemMap() {
         return fileItemMap;
     }
 
     public FileItem getItem() {
         String fileName = getFieldsMap().get("fileName");
         return getFileItemMap().get(fileName);
     }
 }