Class: Asciidoctor::Diagram::SyntraxConverter

Inherits:
Object
  • Object
show all
Includes:
CliGenerator, DiagramConverter
Defined in:
lib/asciidoctor-diagram/syntrax/converter.rb

Constant Summary collapse

CLASSPATH_ENV = 
Java.environment_variable('DIAGRAM_JSYNTRAX_CLASSPATH')
CLI_HOME_ENV = 
Java.environment_variable('DIAGRAM_JSYNTRAX_HOME')
JSYNTRAX_JARS = 
if CLASSPATH_ENV
  CLASSPATH_ENV.split(File::PATH_SEPARATOR)
elsif CLI_HOME_ENV
  lib_dir = File.expand_path('lib', CLI_HOME_ENV)
  Dir.children(lib_dir).select { |c| c.end_with? '.jar' }.map { |c| File.expand_path(c, lib_dir) }
else
  nil
end

Instance Method Summary collapse

Methods included from CliGenerator

#generate_file, #generate_file_stdout, #generate_stdin, #generate_stdin_file, #generate_stdin_stdout

Methods included from DiagramConverter

#wrap_source

Instance Method Details

#collect_options(source) ⇒ Object 



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# File 'lib/asciidoctor-diagram/syntrax/converter.rb', line 32

def collect_options(source)
  {
      :heading => source.attr('heading'),
      :scale => source.attr('scale'),
      :transparent => source.attr('transparent'),
      :style => source.attr('style-file') || source.attr("#{source.diagram_type}-style", nil, true)
  }
end

#convert(source, format, options) ⇒ Object 



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# File 'lib/asciidoctor-diagram/syntrax/converter.rb', line 41

def convert(source, format, options)
  shared_args = []
  title = options[:heading]
  if title
    shared_args << '--title' << title
  end

  scale = options[:scale]
  if scale
    shared_args << '--scale' << scale
  end

  transparent = options[:transparent]
  if transparent == 'true'
    shared_args << '--transparent'
  end
  style = options[:style]
  if style
    shared_args << '--style' << style
  end

  if JSYNTRAX_JARS
    Java.load

    options_string = shared_args.join(' ')

    case format
    when :png
      mime_type = 'image/png'
    when :svg
      mime_type = 'image/svg+xml'
    else
      raise "Unsupported format: #{format}"
    end

    headers = {
      'Accept' => mime_type,
      'X-Options' => options_string
    }

    response = Java.send_request(
      :url => '/syntrax',
      :body => source.to_s,
      :headers => headers
    )

    unless response[:code] == 200
      raise Java.create_error("JSyntrax code generation failed", response)
    end

    response[:body]
  else
    generate_file(source.find_command('syntrax'), 'spec', format.to_s, source.to_s) do |tool_path, input_path, output_path|
      {
        :args => ([tool_path, '-i', Platform.native_path(input_path), '-o', Platform.native_path(output_path)] + shared_args),
        :chdir => source.base_dir
      }
    end
  end

end

#native_scaling? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/asciidoctor-diagram/syntrax/converter.rb', line 103

def native_scaling?
  true
end

#supported_formats ⇒ Object 



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# File 'lib/asciidoctor-diagram/syntrax/converter.rb', line 28

def supported_formats
  [:png, :svg]
end