src/Task/TaskFileXCSoar.cpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2013 The XCSoar Project
   6   A detailed list of copyright holders can be found in the file "AUTHORS".
   7
   8   This program is free software; you can redistribute it and/or
   9   modify it under the terms of the GNU General Public License
  10   as published by the Free Software Foundation; either version 2
  11   of the License, or (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 }
  22 */
  23
  24 #include "Task/TaskFileXCSoar.hpp"
  25 #include "Deserialiser.hpp"
  26 #include "XML/DataNodeXML.hpp"
  27 #include "Engine/Task/Ordered/OrderedTask.hpp"
  28 #include "Util/StringUtil.hpp"
  29
  30 #include <memory>
  31 #include <assert.h>
  32
  33 OrderedTask*
  34 TaskFileXCSoar::GetTask(const TaskBehaviour &task_behaviour,
  35                         const Waypoints *waypoints, unsigned index) const
  36 {
  37   assert(index == 0);
  38
  39   // Load root node
  40   std::unique_ptr<DataNode> root(DataNodeXML::Load(path));
  41   if (!root)
  42     return NULL;
  43
  44   // Check if root node is a <Task> node
  45   if (!StringIsEqual(root->GetName(), _T("Task")))
  46     return NULL;
  47
  48   // Create a blank task
  49   OrderedTask *task = new OrderedTask(task_behaviour);
  50
  51   // Read the task from the XML file
  52   Deserialiser des(*root, waypoints);
  53   des.Deserialise(*task);
  54
  55   // Check if the task is valid
  56   if (!task->CheckTask()) {
  57     delete task;
  58     return NULL;
  59   }
  60
  61   // Return the parsed task
  62   return task;
  63 }