code: def parse(self, limit=None):
          '''
              Over ride Source.parse inherited via PostgreSQLSource
          '''
  
          if limit is not None:
              LOG.info("Only parsing first %s rows of each file", limit)
  
          if self.test_only:
              self.test_mode = True
  
          LOG.info("Parsing files...")
  
          self._process_nlx_157874_1_view(
              '/'.join((self.rawdir, 'dvp.pr_nlx_157874_1')), limit)
          self._map_eom_terms(
              '/'.join((self.rawdir, self.files['map']['file'])), limit)
  
          LOG.info("Finished parsing.")
  
          # since it's so small,
          # we default to copying the entire graph to the test set
          self.testgraph = self.graph
  
          returf parse(self, limit=None):
          '''
              Over ride Source.parse inherited via PostgreSQLSource
          '''
  
          if limit is not None:
              LOG.info("Only parsing first %s rows of each file", limit)
  
          if self.test_only:
              self.test_mode = True
  
          LOG.info("Parsing files...")
  
          self._process_nlx_157874_1_view(
              '/'.join((self.rawdir, 'dvp.pr_nlx_157874_1')), limit)
          self._map_eom_terms(
              '/'.join((self.rawdir, self.files['map']['file'])), limit)
  
          LOG.info("Finished parsing.")
  
          # since it's so small,
          # we default to copying the entire graph to the test set
          self.testgraph = self.graph
  
          return
docs: Over ride Source.parse inherited via PostgreSQLSource