FOAFWriter.py

   1 #
   2 # FOAFWriter
   3 #
   4 # A plugin to XMLWriter to output FOAF (friend of a friend).
   5 #
   6 # I have a quick look through some sample FOAF, it seems it
   7 # can get quite intricate in things it can tell you, however
   8 # other Planets only offer this basic feed. Given this is almost
   9 # all the information we know, that can't be too bad.
  10 #
  11 # (c) 2004, Davyd Madeley <[email protected]>
  12 #
  13
  14 class FOAFWriter:
  15         def __init__(self, planet):
  16                 self.parent     = None
  17
  18         def __write_item__(self, blog):
  19                 output  =       ''
  20                 output  +=      '<foaf:member>\n'
  21                 output  +=      ' <foaf:Agent>\n'
  22                 output  +=      '  <foaf:name>%s</foaf:name>\n' % blog.blogName
  23                 output  +=      '  <foaf:weblog>\n'
  24                 output  +=      '   <foaf:Document rdf:about="%s">\n' % blog.blogURL
  25                 output  +=      '    <dc:title>%s</dc:title>\n' % blog.blogTitle
  26                 output  +=      '    <rdfs:seeAlso>\n'
  27                 output  +=      '     <rss:channel rdf:about="%s" />\n' % blog.feedURL
  28                 output  +=      '    </rdfs:seeAlso>\n'
  29                 output  +=      '   </foaf:Document>\n'
  30                 output  +=      '  </foaf:weblog>\n'
  31                 output  +=      ' </foaf:Agent>\n'
  32                 output  +=      '</foaf:member>\n'
  33                 return output
  34
  35         def write(self):
  36                 itemcount       = 0
  37                 output  =       ''
  38                 output  +=      '<rdf:RDF>\n'
  39                 output  +=      ' xmlns="http://purl.org/rss/1.0/"\n'
  40                 output  +=      ' xmlns:dc="http://purl.org/dc/elements/1.1/"\n'
  41                 output  +=      ' xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n'
  42                                 # XXX: probably need other doctypes here
  43                                 # infact, need to check XML structures
  44                 output  +=      ' <foaf:Group>\n'
  45                 output  +=      '  <foaf:name>Planet UCC</foaf:name>\n'
  46                 output  +=      '  <foaf:homepage>http://planet.ucc.asn.au/</foaf:homepage>\n'
  47                 output  +=      '  <rdfs:seeAlso rdf:resource="http://planet.ucc.asn.au/foaf.xml" />\n'
  48                 for blog in self.parent.blogs:
  49                         output  +=      self.__write_item__(blog)
  50                 output  +=      ' </foaf:Group>\n'
  51                 output  +=      '</rdf:RDF>'
  52                 return output