Contents

require 'modl/parser/object_cache'
require 'modl/parser/sutil'

module Modl
  module Parser

    # This class handled file loading from local or remote file systems.
    class FileImporter

      def initialize
        @cache = ObjectCache.new
      end

      # Supply a single file name as a string or an array of file names.
      def import_files(files, global)
        file_names = []
        file_names += files if files.is_a? Array
        file_names << files if files.is_a? String

        file_names.each do |file_name|
          force = file_name.end_with?('!')
          if force
            # Don't use the cache if we're forcing a reload.
            @cache.evict(file_name)
            file_name = Sutil.head(file_name)
            parsed = nil
          else
            # Do we have a cached version?
            parsed = @cache.get(file_name)
          end

          # Did we hit the cache?
          unless parsed
            # No.
            file_name << '.modl' unless file_name.end_with?('.txt', '.modl')
            file_name, new_val = RefProcessor.deref file_name, global if file_name.include?('%')

            begin
              uri = URI(file_name)
              txt = Net::HTTP.get(uri)
            rescue
              begin
                txt = File.readlines(file_name).join
              rescue
                raise InterpreterError, 'File not found: ' + file_name
              end
            end

            global.loaded_file(file_name)

            # Parse the downloaded file ands extract the classes
            parsed = Modl::Parser::Parser.parse txt, global
            # Save it for next time
            @cache.put(file_name, parsed)
          end
          # Extract the JSON content and add the classes and pairs to the existing GlobalParseContext hashes.
          parsed.extract_hash
          global.merge_classes(parsed.global)
          global.merge_pairs(parsed.global)
        end
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
modl-0.3.2	lib/modl/parser/file_importer.rb
modl-0.3.1	lib/modl/parser/file_importer.rb
modl-0.3.0	lib/modl/parser/file_importer.rb