confirmcommentaction.java

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package net.sourceforge.pebble.web.action;

import net.sourceforge.pebble.Constants;
import net.sourceforge.pebble.api.confirmation.CommentConfirmationStrategy;
import net.sourceforge.pebble.api.decorator.ContentDecoratorContext;
import net.sourceforge.pebble.domain.*;
import net.sourceforge.pebble.web.view.NotFoundView;
import net.sourceforge.pebble.web.view.View;
import net.sourceforge.pebble.web.view.impl.CommentConfirmationView;
import net.sourceforge.pebble.web.view.impl.ConfirmCommentView;
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;

/**
 * Confirms a comment.
 *
 * @author    Simon Brown
 */
public class ConfirmCommentAction extends AbstractCommentAction {

  /** the log used by this class */
  private static Log log = LogFactory.getLog(ConfirmCommentAction.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;

    comment = (Comment)request.getSession().getAttribute(Constants.COMMENT_KEY);
    String entry = comment.getBlogEntry().getId();

    BlogService service = new BlogService();
    try {
      blogEntry = service.getBlogEntry(blog, entry);
    } catch (BlogServiceException e) {
      throw new ServletException(e);
    }
    if (blogEntry == null) {
      // just send back a 404 - this is probably somebody looking for a way
      // to send comment spam ;-)
      return new NotFoundView();
    } else if (!blogEntry.isCommentsEnabled()) {
      return new CommentConfirmationView();
    }

    ContentDecoratorContext decoratorContext = new ContentDecoratorContext();
    decoratorContext.setView(ContentDecoratorContext.DETAIL_VIEW);
    decoratorContext.setMedia(ContentDecoratorContext.HTML_PAGE);

    Comment decoratedComment = (Comment)comment.clone();
    blog.getContentDecoratorChain().decorate(decoratorContext, decoratedComment);
    getModel().put("decoratedComment", decoratedComment);
    getModel().put("undecoratedComment", comment);
    getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
    getModel().put(Constants.COMMENT_KEY, comment);

    CommentConfirmationStrategy strategy = blog.getCommentConfirmationStrategy();

    Comment clonedComment = (Comment)comment.clone();

    if (strategy.isConfirmed(request)) {
      try {
        saveComment(request, response, blogEntry, comment);
        request.getSession().removeAttribute(Constants.COMMENT_KEY);
        return new CommentConfirmationView();
      } catch (BlogServiceException be) {
        log.error(be.getMessage(), be);
        throw new ServletException(be);
      }
    } else {
      // try again!
      strategy.setupConfirmation(request);
      return new ConfirmCommentView();
    }
  }

}