Source Code for Module ajango.core.XMLReader

 1  ########################################################################### 
 2  #                                                                         # 
 3  #  Copyright (C) 2016  Rafal Kobel <rafyco1@gmail.com>                    # 
 4  #                                                                         # 
 5  #  This program is free software: you can redistribute it and/or modify   # 
 6  #  it under the terms of the GNU General Public License as published by   # 
 7  #  the Free Software Foundation, either version 3 of the License, or      # 
 8  #  (at your option) any later version.                                    # 
 9  #                                                                         # 
10  #  This program is distributed in the hope that it will be useful,        # 
11  #  but WITHOUT ANY WARRANTY; without even the implied warranty of         # 
12  #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the           # 
13  #  GNU General Public License for more details.                           # 
14  #                                                                         # 
15  #  You should have received a copy of the GNU General Public License      # 
16  #  along with this program.  If not, see <http://www.gnu.org/licenses/>.  # 
17  #                                                                         # 
18  ########################################################################### 
19  """ Modul parsowania xml. """ 
20   
21  from __future__                   import print_function 
22  from xml.dom                      import minidom 
23  from django.core.management.base  import CommandError 
24  from django.utils.termcolors      import make_style 
25  from django.core.management.color import supports_color 
26  import abc 
27   
28 -class XMLReader(object): 
29      """ Klasa obiektu parsowania XML. """ 
30      __metaclass__ = abc.ABCMeta 
31 -    def __init__(self, xmldoc, param=None): 
32          self.xml_xmldoc = xmldoc 
33          self.add_permited([]) 
34          self.xml_name = "" 
35          self.object = param 
36          self.init() 
37          self.render() 
38          self.xml_permited = [] 
39 -    def init(self): 
40          """ Modul inicjalizujacy. """ 
41          pass 
42 -    def add_permited(self, permited): 
43          """ Dodanie tagow ktore moga byc parsowane wewnatrz elementu. """ 
44          try: 
45              self.xml_permited += permited 
46          except AttributeError: 
47              self.xml_permited = permited 
48 -    def get_xml_doc(self): 
49          """ Pobranie xmldoc. """ 
50          return self.xml_xmldoc 
51      # pylint: disable=C0103 
52 -    def getAttribute(self, name): 
53          """ Pobranie atrybutu dla noda. """ 
54          return self.xml_xmldoc.getAttribute(name) 
55 -    def _is_permited(self, name): 
56          """ Sprawdzenie czy element moze byc parsowany. """ 
57          if self.xml_permited == []: 
58              return True 
59          for elem in self.xml_permited: 
60              if elem.upper() == name.upper(): 
61                  return True 
62          return False 
63 -    def pre_render(self): 
64          """ Czynnosci do wykonania przez inicjalizacja. """ 
65          pass 
66 -    def post_render(self): 
67          """ Czynnosci do wykonania po inicjalizacji. """ 
68          pass 
69 -    def render(self): 
70          """ Renderowanie elementow. """ 
71          if supports_color(): 
72              yellow = make_style(fg='yellow') 
73          else: 
74              yellow = lambda text: text 
75          print("Rendering '" + yellow(self.xml_xmldoc.tagName.upper()) + "'") 
76          if (self.xml_name != "") and (self.xml_name.upper() != 
77                                        self.get_xml_doc().tagName.upper()): 
78              raise CommandError("Cannot create object from %r" % 
79                                 self.get_xml_doc().tagName) 
80          self.pre_render() 
81          for elem in self.get_xml_doc().childNodes: 
82              if isinstance(elem, minidom.Element): 
83                  if self._is_permited(elem.tagName): 
84                      self.check(elem.tagName.upper(), elem) 
85                  else: 
86                      raise CommandError("Unknown element: %r" % elem.tagName) 
87          self.post_render() 
88      @abc.abstractmethod 
89 -    def check(self, name, xmldoc_elem): 
90          """ Oczytanie nodow wewnetrznych. """ 
91          raise CommandError("XMLReader must have check method") 
92