/* 
    P/P   *  Method: net.sourceforge.pebble.web.action.RemoveCategoriesAction__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.dao.CategoryDAO;
    36  import net.sourceforge.pebble.dao.DAOFactory;
    37  import net.sourceforge.pebble.dao.PersistenceException;
    38  import net.sourceforge.pebble.domain.Category;
    39  import net.sourceforge.pebble.domain.Blog;
    40  import net.sourceforge.pebble.web.security.RequireSecurityToken;
    41  import net.sourceforge.pebble.web.view.ForwardView;
    42  import net.sourceforge.pebble.web.view.View;
    43  
         /* 
    P/P   *  Method: void net.sourceforge.pebble.web.action.RemoveCategoriesAction()
          */
    44  import javax.servlet.ServletException;
    45  import javax.servlet.http.HttpServletRequest;
    46  import javax.servlet.http.HttpServletResponse;
    47  
    48  /**
    49   * Removes a given category from the associated with the current blog.
    50   *
    51   * @author    Simon Brown
    52   */
    53  @RequireSecurityToken
    54  public class RemoveCategoriesAction extends SecureAction {
    55  
    56    /**
    57     * Peforms the processing associated with this action.
    58     *
    59     * @param request  the HttpServletRequest instance
    60     * @param response the HttpServletResponse instance
    61     * @return the name of the next view
    62     */
    63    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:
              *    Local_8[Local_6]@65 != null
              *    ids.length@65 <= 232-1
              *    java.util.HashMap:get(...)@63 != null
              *    net.sourceforge.pebble.dao.DAOFactory:getCategoryDAO(...)@76 != null
              *    net.sourceforge.pebble.dao.DAOFactory:getConfiguredFactory(...)@75 != null
              * 
              *  Postconditions:
              *    return_value == &new ForwardView(process#1)
              *    new ForwardView(process#1) num objects == 1
              *    return_value.uri == &".viewCategories.secureaction"
              * 
              *  Test Vectors:
              *    java.lang.String:equals(...)@69: {1}, {0}
              *    javax.servlet.http.HttpServletRequest:getParameterValues(...)@65: Addr_Set{null}, Inverse{null}
              *    net.sourceforge.pebble.domain.Blog:getCategory(...)@70: Addr_Set{null}, Inverse{null}
              */
    64      Blog blog = (Blog)getModel().get(Constants.BLOG_KEY);
    65      String ids[] = request.getParameterValues("category");
    66  
    67      if (ids != null) {
    68        for (String id : ids) {
    69          if (!id.equals("/")) {
    70            Category category = blog.getCategory(id);
    71            if (category != null) {
    72              blog.removeCategory(category);
    73              try {
    74                // remove it from the persistent store
    75                DAOFactory factory = DAOFactory.getConfiguredFactory();
    76                CategoryDAO dao = factory.getCategoryDAO();
    77                dao.deleteCategory(category, blog);
    78              } catch (PersistenceException pe) {
    79                pe.printStackTrace();
    80              }
    81            }
    82          }
    83        }
    84      }
    85  
    86      return new ForwardView("/viewCategories.secureaction");
    87    }
    88  
    89    /**
    90     * Gets a list of all roles that are allowed to access this action.
    91     *
    92     * @return  an array of Strings representing role names
    93     * @param request
    94     */
    95    public String[] getRoles(HttpServletRequest request) {
             /* 
    P/P       *  Method: String[] getRoles(HttpServletRequest)
              * 
              *  Presumptions:
              *    init'ed(net.sourceforge.pebble.Constants.BLOG_CONTRIBUTOR_ROLE)
              * 
              *  Postconditions:
              *    return_value == &new String[](getRoles#1)
              *    new String[](getRoles#1) num objects == 1
              *    return_value.length == 1
              *    return_value[0] == net.sourceforge.pebble.Constants.BLOG_CONTRIBUTOR_ROLE
              *    (soft) init'ed(return_value[0])
              */
    96      return new String[]{Constants.BLOG_CONTRIBUTOR_ROLE};
    97    }
    98  
    99  }