/* 
    P/P   *  Method: net.sourceforge.pebble.web.action.ViewDayAction__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.Constants;
    35  import net.sourceforge.pebble.util.SecurityUtils;
    36  import net.sourceforge.pebble.domain.*;
    37  import net.sourceforge.pebble.web.view.View;
    38  import net.sourceforge.pebble.web.view.impl.BlogEntriesByDayView;
    39  
         /* 
    P/P   *  Method: void net.sourceforge.pebble.web.action.ViewDayAction()
          */
    40  import javax.servlet.ServletException;
    41  import javax.servlet.http.HttpServletRequest;
    42  import javax.servlet.http.HttpServletResponse;
    43  import java.util.List;
    44  import java.util.ArrayList;
    45  
    46  /**
    47   * Finds all blog entries for a particular day, ready for them to be displayed.
    48   *
    49   * @author    Simon Brown
    50   */
    51  public class ViewDayAction extends Action {
    52  
    53    /**
    54     * Peforms the processing associated with this action.
    55     *
    56     * @param request  the HttpServletRequest instance
    57     * @param response the HttpServletResponse instance
    58     * @return the name of the next view
    59     */
    60    public View process(HttpServletRequest request, HttpServletResponse response) throws ServletException {
             /* 
    P/P       *  Method: View process(HttpServletRequest, HttpServletResponse)
              * 
              *  Preconditions:
              *    request != null
              *    this.model != null
              *    this.model.data != null
              * 
              *  Presumptions:
              *    javax.servlet.http.HttpServletRequest:getAttribute(...)@61 != null
              *    net.sourceforge.pebble.domain.Blog:getBlogForDay(...)@70 != null
              *    net.sourceforge.pebble.domain.Blog:getBlogForFirstMonth(...)@89 != null
              *    net.sourceforge.pebble.domain.Blog:getBlogForToday(...)@72 != null
              *    net.sourceforge.pebble.domain.Blog:getCalendar(...)@97 != null
              *    ...
              * 
              *  Postconditions:
              *    return_value == &new BlogEntriesByDayView(process#3)
              *    new BlogEntriesByDayView(process#3) num objects == 1
              * 
              *  Test Vectors:
              *    java.lang.String:length(...)@67: {0}, {1..232-1}
              *    java.lang.String:length(...)@68: {0}, {1..232-1}
              *    java.lang.String:length(...)@69: {0}, {1..232-1}
              *    java.util.Date:after(...)@97: {0}, {1}
              *    javax.servlet.http.HttpServletRequest:getParameter(...)@62: Addr_Set{null}, Inverse{null}
              *    javax.servlet.http.HttpServletRequest:getParameter(...)@63: Addr_Set{null}, Inverse{null}
              *    javax.servlet.http.HttpServletRequest:getParameter(...)@64: Addr_Set{null}, Inverse{null}
              *    net.sourceforge.pebble.domain.Day:before(...)@93: {1}, {0}
              *    net.sourceforge.pebble.domain.Day:before(...)@97: {0}, {1}
              */
    61      Blog blog = (Blog)request.getAttribute(Constants.BLOG_KEY);
    62      String year = request.getParameter("year");
    63      String month = request.getParameter("month");
    64      String day = request.getParameter("day");
    65  
    66      Day daily;
    67      if (year != null && year.length() > 0 &&
    68          month != null && month.length() > 0 &&
    69          day != null && day.length() > 0) {
    70        daily = blog.getBlogForDay(Integer.parseInt(year), Integer.parseInt(month), Integer.parseInt(day));
    71      } else {
    72        daily = blog.getBlogForToday();
    73      }
    74  
    75      BlogService service = new BlogService();
    76      List<BlogEntry> blogEntries;
    77      try {
    78        blogEntries = service.getBlogEntries(blog, Integer.parseInt(year), Integer.parseInt(month), Integer.parseInt(day));
    79      } catch (BlogServiceException e) {
    80        throw new ServletException(e);
    81      }
    82  
    83      getModel().put(Constants.MONTHLY_BLOG, daily.getMonth());
    84      getModel().put(Constants.DAILY_BLOG, daily);
    85      getModel().put(Constants.BLOG_ENTRIES, filter(blog, blogEntries));
    86      getModel().put("displayMode", "day");
    87  
    88      // put the previous and next days in the model for navigation purposes
    89      Day firstDay = blog.getBlogForFirstMonth().getBlogForFirstDay();
    90      Day previousDay = daily.getPreviousDay();
    91      Day nextDay = daily.getNextDay();
    92  
    93      if (!previousDay.before(firstDay)) {
    94        getModel().put("previousDay", previousDay);
    95      }
    96  
    97      if (!nextDay.getDate().after(blog.getCalendar().getTime()) || nextDay.before(firstDay)) {
    98        getModel().put("nextDay", nextDay);
    99      }
   100  
   101      return new BlogEntriesByDayView();
   102    }
   103  
           /* 
    P/P     *  Method: List filter(Blog, List)
            * 
            *  Preconditions:
            *    blogEntries != null
            *    (soft) blog != null
            * 
            *  Presumptions:
            *    java.util.Iterator:next(...)@107 != null
            * 
            *  Postconditions:
            *    return_value == &new ArrayList(filter#1)
            *    new ArrayList(filter#1) num objects == 1
            * 
            *  Test Vectors:
            *    java.util.Iterator:hasNext(...)@107: {1}, {0}
            *    net.sourceforge.pebble.domain.BlogEntry:isPublished(...)@109: {1}, {0}
            *    net.sourceforge.pebble.domain.BlogEntry:isUnpublished(...)@111: {0}, {1}
            */
   104    private List<BlogEntry> filter(Blog blog, List<BlogEntry> blogEntries) {
   105      List<BlogEntry> filtered = new ArrayList<BlogEntry>();
   106  
   107      for (BlogEntry blogEntry : blogEntries) {
   108        if (
   109            blogEntry.isPublished() ||
   110            (
   111                (SecurityUtils.isUserAuthorisedForBlog(blog) && blogEntry.isUnpublished())
   112            )
   113           ) {
   114          filtered.add(blogEntry);
   115        }
   116      }
   117  
   118      return filtered;
   119    }
   120  
   121  }