/*

  * Copyright (c) 2003-2011, Simon Brown

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions are met:

  *

  *   - Redistributions of source code must retain the above copyright

  *     notice, this list of conditions and the following disclaimer.

  *

  *   - Redistributions in binary form must reproduce the above copyright

  *     notice, this list of conditions and the following disclaimer in

  *     the documentation and/or other materials provided with the

  *     distribution.

  *

  *   - Neither the name of Pebble nor the names of its contributors may

  *     be used to endorse or promote products derived from this software

  *     without specific prior written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

  * POSSIBILITY OF SUCH DAMAGE.

  */

 package net.sourceforge.pebble.web.action;

 import net.sourceforge.pebble.Constants;

 import net.sourceforge.pebble.domain.*;

 import net.sourceforge.pebble.web.security.RequireSecurityToken;

 import net.sourceforge.pebble.web.view.View;

 import net.sourceforge.pebble.web.view.NotFoundView;

 import net.sourceforge.pebble.web.view.impl.RemoveEmailAddressConfirmationView;

 import net.sourceforge.pebble.web.view.impl.RemoveEmailAddressView;

 import org.apache.commons.logging.Log;

 import org.apache.commons.logging.LogFactory;

 import javax.servlet.ServletException;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import java.util.Iterator;

 /**

  * Removes an email address subscription to blog comments

  *

  * @author    Simon Brown

  */

 public class RemoveEmailAddressAction extends Action {

   /** the log used by this class */

   private static Log log = LogFactory.getLog(RemoveEmailAddressAction.class);

   /**

    * Peforms the processing associated with this action.

    *

    * @param request  the HttpServletRequest instance

    * @param response the HttpServletResponse instance

    * @return the name of the next view

    */

   public View process(HttpServletRequest request, HttpServletResponse response) throws ServletException {

     Blog blog = (Blog)getModel().get(Constants.BLOG_KEY);

     BlogEntry blogEntry = null;

     Comment comment = null;

     String entry = request.getParameter("entry");

     String email = request.getParameter("email");

     BlogService service = new BlogService();

     try {

       blogEntry = service.getBlogEntry(blog, entry);

     } catch (BlogServiceException e) {

       throw new ServletException(e);

     }

     if (blogEntry == null) {

       return new NotFoundView();

     }

     getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);

     if (email != null && email.length() > 0) {

       Iterator it = blogEntry.getComments().iterator();

       while (it.hasNext()) {

         comment = (Comment)it.next();

         if (comment.getEmail() != null && comment.getEmail().equals(email)) {

           comment.setEmail(null);

         }

       }

       try {

         service.putBlogEntry(blogEntry);

       } catch (BlogServiceException be) {

         log.error(be.getMessage(), be);

         throw new ServletException(be);

       }

       return new RemoveEmailAddressConfirmationView();

     } else {

       return new RemoveEmailAddressView();

     }

   }

 }