/* 
    P/P   *  Method: net.sourceforge.pebble.web.action.ViewHomePageAction__static_init
          */
     1  /*
     2   * Copyright (c) 2003-2006, Simon Brown
     3   * All rights reserved.
     4   *
     5   * Redistribution and use in source and binary forms, with or without
     6   * modification, are permitted provided that the following conditions are met:
     7   *
     8   *   - Redistributions of source code must retain the above copyright
     9   *     notice, this list of conditions and the following disclaimer.
    10   *
    11   *   - Redistributions in binary form must reproduce the above copyright
    12   *     notice, this list of conditions and the following disclaimer in
    13   *     the documentation and/or other materials provided with the
    14   *     distribution.
    15   *
    16   *   - Neither the name of Pebble nor the names of its contributors may
    17   *     be used to endorse or promote products derived from this software
    18   *     without specific prior written permission.
    19   *
    20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    30   * POSSIBILITY OF SUCH DAMAGE.
    31   */
    32  package net.sourceforge.pebble.web.action;
    33  
    34  import net.sourceforge.pebble.web.view.ForwardView;
    35  import net.sourceforge.pebble.web.view.View;
    36  import net.sourceforge.pebble.domain.AbstractBlog;
    37  import net.sourceforge.pebble.domain.Blog;
    38  import net.sourceforge.pebble.Constants;
    39  
         /* 
    P/P   *  Method: void net.sourceforge.pebble.web.action.ViewHomePageAction()
          */
    40  import javax.servlet.ServletException;
    41  import javax.servlet.http.HttpServletRequest;
    42  import javax.servlet.http.HttpServletResponse;
    43  
    44  /**
    45   * Finds all blog entries that are to be displayed on the home page.
    46   *
    47   * @author    Simon Brown
    48   */
    49  public class ViewHomePageAction extends Action {
    50  
    51    /**
    52     * Peforms the processing associated with this action.
    53     *
    54     * @param request     the HttpServletRequest instance.
    55     * @param response    the HttpServletResponse instance.
    56     * @return            the next View
    57     */
    58    public View process(HttpServletRequest request,
    59                        HttpServletResponse response)
    60        throws ServletException {
    61  
             /* 
    P/P       *  Method: View process(HttpServletRequest, HttpServletResponse)
              * 
              *  Preconditions:
              *    this.model != null
              *    this.model.data != null
              * 
              *  Postconditions:
              *    return_value in Addr_Set{&new ForwardView(process#1),&new ForwardView(process#3)}
              *    new ForwardView(process#1) num objects <= 1
              *    new ForwardView(process#1).uri != null
              *    new ForwardView(process#3) num objects <= 1
              *    new ForwardView(process#3).uri == &".viewBlogEntriesByPage.action?page=1"
              * 
              *  Test Vectors:
              *    java.lang.String:equals(...)@66: {1}, {0}
              *    net.sourceforge.pebble.domain.Blog:getHomePage(...)@65: Addr_Set{null}, Inverse{null}
              */
    62      AbstractBlog abstractBlog = (AbstractBlog)getModel().get(Constants.BLOG_KEY);
    63      if (abstractBlog instanceof Blog) {
    64        Blog blog = (Blog)abstractBlog;
    65        String homePage = blog.getHomePage();
    66        if (homePage != null && !homePage.equals("")) {
    67          return new ForwardView("/viewStaticPage.action?name=" + homePage);
    68        }
    69      }
    70  
    71      return new ForwardView("/viewBlogEntriesByPage.action?page=1");
    72    }
    73  
    74  }