Source Code for Module pyx12.map_index

 1  ###################################################################### 
 2  # Copyright (c) 2001-2005 Kalamazoo Community Mental Health Services, 
 3  #   John Holland <jholland@kazoocmh.org> <john@zoner.org> 
 4  # All rights reserved. 
 5  # 
 6  # This software is licensed as described in the file LICENSE.txt, which 
 7  # you should have received as part of this distribution. 
 8  # 
 9  ###################################################################### 
10   
11  #    $Id: map_index.py 900 2006-02-21 17:33:50Z johnholland $ 
12   
13  """ 
14  Locate the correct xml map file given: 
15      - Interchange Control Version Number (ISA12) 
16      - Functional Identifier Code (GS01) 
17      - Version / Release / Industry Identifier Code (GS08) 
18      - Transaction Set Purpose Code (BHT02) (For 278 only) 
19  """ 
20   
21  import libxml2 
22  import errors 
23   
24  NodeType = {'element_start': 1, 'element_end': 15, 'attrib': 2, 'text': 3, 'CData': 4, 'entity_ref': 5, 'entity_decl':6, 'pi': 7, 'comment': 8, 'doc': 9, 'dtd': 10, 'doc_frag': 11, 'notation': 12} 
25   
26 -class map_index(object): 
27      """ 
28      Interface to the maps.xml file 
29      """ 
30 -    def __init__(self, map_index_file): 
31          """ 
32          @param map_index_file: Absolute path of maps.xml 
33          @type map_index_file: string 
34          """ 
35          self.maps = [] 
36          tspc = None 
37          try: 
38              reader = libxml2.newTextReaderFilename(map_index_file) 
39          except: 
40              raise errors.EngineError, 'Map file not found: %s' % (map_index_file) 
41                       
42          while reader.Read(): 
43              #processNode(reader) 
44              if reader.NodeType() == NodeType['element_start'] and reader.Name() == 'version': 
45                  while reader.MoveToNextAttribute(): 
46                      if reader.Name() == 'icvn': 
47                          icvn = reader.Value() 
48   
49              if reader.NodeType() == NodeType['element_end'] and reader.Name() == 'version': 
50                  icvn = None 
51   
52              if reader.NodeType() == NodeType['element_start'] and reader.Name() == 'map': 
53                  file_name = '' 
54                  while reader.MoveToNextAttribute(): 
55                      if reader.Name() == 'vriic': 
56                          vriic = reader.Value() 
57                      elif reader.Name() == 'fic': 
58                          fic = reader.Value() 
59                      elif reader.Name() == 'tspc': 
60                          tspc = reader.Value() 
61   
62              if reader.NodeType() == NodeType['element_end'] and reader.Name() == 'map': 
63                  self.maps.append((icvn, vriic, fic, tspc, file_name)) 
64                  vriic = None 
65                  fic = None 
66                  tspc = None 
67                  file_name = None 
68   
69              if reader.NodeType() == NodeType['text']: 
70                  file_name = reader.Value() 
71   
72       
73 -    def add_map(self, icvn, vriic, fic, tspc, map_file): 
74          self.maps.append((icvn, vriic, fic, tspc, map_file)) 
75       
76 -    def get_filename(self, icvn, vriic, fic, tspc=None): 
77          """ 
78          @rtype: string 
79          """ 
80          for a in self.maps: 
81              if a[0] == icvn and a[1] == vriic and a[2] == fic \ 
82                      and (tspc is None or a[3] == tspc): 
83                  return a[4] 
84          return None 
85   
86 -    def print_all(self): 
87          for a in self.maps: 
88              print a[0], a[1], a[2], a[3], a[4] 
89