Class: MiniTransformer::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/mini_transformer.rb

Instance Method Summary collapse

Instance Method Details

#parse ⇒ Object 



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# File 'lib/mini_transformer.rb', line 62

def parse
  @book.id = @document.root.attribute_nodes.first.content if @document.root.attribute_nodes.size > 0
  @book.introduction = @document.xpath("//Book//Introduction//Para")

  keylist = @document.xpath("//Book//KeyList")
  entries = @document.xpath("//Book//KeyList//Entries")

  @book.key_list.name = keylist.at_xpath("//Name").text
  @book.key_list.key_label = keylist.at_xpath("//KeyLabel").text
  @book.key_list.description_label = keylist.at_xpath("//DescriptionLabel").text
  @book.key_list.entries = Array.new

  entries.children.each do |entry|
    if entry.class == Nokogiri::XML::Element
      book_entry = Entry.new
      entry.children.each do |child|
        if child.class == Nokogiri::XML::Element
          if child.name == "KeyName"
            book_entry.key_name = child.content
          elsif child.name == "Description"
            book_entry.description = child.content
          end
        end
      end
      @book.key_list.entries << book_entry
    end
  end
end

#setup(json_input_filename, xml_input_filename, output = nil, format = "html", mapping = nil) ⇒ Object 



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# File 'lib/mini_transformer.rb', line 18

def setup(json_input_filename, xml_input_filename, output=nil, format="html", mapping=nil)
  if File.exists?(xml_input_filename) && File.exists?(json_input_filename)
    xml_input_file = File.open(xml_input_filename)
    json_input = File.open(json_input_filename)
    json_contents = ""
    json_input.each do |line|
      json_contents = json_contents + line
    end
    json_data = JSON.parse json_contents

    if File.extname(xml_input_filename) == ".xml"
      @document = Nokogiri::XML(xml_input_file, nil, 'UTF-8')
    end
  else
    raise "File Not Found."
  end

  unless output.nil?
    # set up the ouput HTML file to write to
    @output = output
  end

  unless mapping.nil?
    @mapping = open(mapping) {|f| YAML.load(f) }
  end

  @book = Book.new
  @book.key_list = KeyList.new

  @book.title = json_data["title"] if json_data["title"]
  @book.type = json_data["type"] if json_data["type"]
  @book.uid = json_data["uid"] if json_data["uid"]

  xml_input_file.close
  json_input.close
end

#to_html ⇒ Object 



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# File 'lib/mini_transformer.rb', line 105

def to_html
  html = MiniTransformer::generate_html(@book, @mapping)

  # Save the HTML file
  if @output
    File.open(@output, "w") { |f| f << html }
  else
    if @book.uid.nil?
      File.open("output.html", "w") { |f| f << html }
    else
      File.open("#{@book.uid}.html", "w") { |f| f << html }
    end
  end

  # return the HTML file as a string
  html
end

#to_json ⇒ Object 



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# File 'lib/mini_transformer.rb', line 91

def to_json
  json = JSON.pretty_generate @book
  # Save the JSON file
  if @output
    File.open(@output, "w") { |f| f << json }
  else
    if @book.uid.nil?
      File.open("output.json", "w") { |f| f << json }
    else
      File.open("#{@book.uid}.json", "w") { |f| f << json }
    end
  end
end

#validate ⇒ Object 



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# File 'lib/mini_transformer.rb', line 55

def validate
  if !@document.errors.empty?
    raise "Malformed XML"
  end
  @document.errors
end