content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache 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.apache.org/licenses/LICENSE-2.0
   *
   * 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.apache.aries.samples.blog.web;
  
  import java.io.IOException;
  import javax.servlet.RequestDispatcher;
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.apache.aries.samples.blog.api.BloggingService;
  import org.apache.aries.samples.blog.web.util.FormServlet;
  import org.apache.aries.samples.blog.web.util.FormatChecker;
  import org.apache.aries.samples.blog.web.util.JNDIHelper;
  
  public class EditAuthor extends HttpServlet
  {
    private static final long serialVersionUID = -8881545878284864977L;
  
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
    {
      doPost(req, resp);
    }
    
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException,
        IOException
    {
      // This method will update or create an author depending on the
      // existence of the author in the database.
      
      // The authors email address is the key in the database, thus if
      // the email address is not in the database we create this as a 
      // new author.
      
      String email = req.getParameter("email");
      String nickName = req.getParameter("nickName");
      String name = req.getParameter("name");
      String bio = req.getParameter("bio");
      String dob = req.getParameter("dob");
      
      if (email == null || email.equals("")) {
        storeParam(req, "email", email);
        storeParam(req, "nickName", nickName);
        storeParam(req, "name", name);
        storeParam(req, "bio", bio);
        storeParam(req, "dob", dob);
        
        FormServlet.addError(req, "The email field is required.");
        resp.sendRedirect("EditAuthorForm");
        
      }else if (!FormatChecker.isValidEmail(email)) {
      	storeParam(req, "email", email);
          storeParam(req, "nickName", nickName);
          storeParam(req, "name", name);
          storeParam(req, "bio", bio);
          storeParam(req, "dob", dob);
          
      	FormServlet.addError(req, "The email field is not properly formatted");
          resp.sendRedirect("EditAuthorForm");	
      } else {
        BloggingService service = JNDIHelper.getBloggingService();
  
        if (service.getBlogAuthor(email) != null) {
          // do an update
          service.updateBlogAuthor(email, nickName, name, bio, dob);
        } else {
          // do a create
          service.createBlogAuthor(email, nickName, name, bio, dob);
        } 
        RequestDispatcher dispatch = getServletContext().getRequestDispatcher("/ViewAuthor");
        dispatch.forward(req, resp);
      }
    }
    
      private void storeParam(HttpServletRequest req, String param, String value) 
    {
      FormServlet.storeParam(req, EditAuthorForm.ID, param, value);
    }
  }