/* 
    P/P   *  Method: net.sourceforge.pebble.web.action.LoginAction__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.domain.AbstractBlog;
    36  import net.sourceforge.pebble.web.view.RedirectView;
    37  import net.sourceforge.pebble.web.view.View;
    38  
         /* 
    P/P   *  Method: void net.sourceforge.pebble.web.action.LoginAction()
          */
    39  import javax.servlet.ServletException;
    40  import javax.servlet.http.HttpServletRequest;
    41  import javax.servlet.http.HttpServletResponse;
    42  
    43  /**
    44   * An action to initiate a login.
    45   *
    46   * @author    Simon Brown
    47   */
    48  public class LoginAction extends Action {
    49  
    50    /**
    51     * Peforms the processing associated with this action.
    52     *
    53     * @param request  the HttpServletRequest instance
    54     * @param response the HttpServletResponse instance
    55     * @return the name of the next view
    56     */
    57    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:
              *    java.util.HashMap:get(...)@63 != null
              * 
              *  Postconditions:
              *    return_value == &new RedirectView(process#1)
              *    new RedirectView(process#1) num objects == 1
              * 
              *  Test Vectors:
              *    java.lang.String:length(...)@61: {1..232-1}, {0}
              *    javax.servlet.http.HttpServletRequest:getParameter(...)@59: Addr_Set{null}, Inverse{null}
              */
    58      AbstractBlog blog = (AbstractBlog)getModel().get(Constants.BLOG_KEY);
    59      String redirectUrl = request.getParameter("redirectUrl");
    60  
    61      if (redirectUrl == null || redirectUrl.trim().length() == 0) {
    62        redirectUrl = blog.getUrl();
    63      }
    64      return new RedirectView(redirectUrl);
    65    }
    66  
    67  }