Class: Scriptlandia::Launcher

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Launcher

Returns a new instance of Launcher.



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# File 'lib/scriptlandia.rb', line 24

def initialize
  @settings = YAML::load File.open(File.dirname(__FILE__) + '/settings.yaml')
  @ext_mapping = YAML::load File.open(File.dirname(__FILE__) + '/languages/extension_mapping.yaml')
end

Class Method Details

.extension(name) ⇒ Object 



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# File 'lib/scriptlandia.rb', line 29

def self.extension name
  name[name.rindex('.')+1, name.length]
end

.language_folder(ext_mapping, name) ⇒ Object 



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# File 'lib/scriptlandia.rb', line 33

def self.language_folder ext_mapping, name
  language_folder = nil

  ext = extension(name)

  ext_mapping.each do |folder, extensions|
    if extensions.include?(ext) or extensions.include?(name)
      language_folder = folder
      break
    end
  end

  language_folder
end

Instance Method Details

#launch ⇒ Object 



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# File 'lib/scriptlandia.rb', line 48

def launch
  script_name = ARGV[0]

  language = Launcher.language_folder(@ext_mapping, script_name)
  
  if(language == nil) 
    puts "Unsupported language/extension: " + Launcher.extension(script_name)
  else
    lang_config = YAML::load File.open(File.dirname(__FILE__) + '/languages/' + 
                         language + '/config.yaml')

    ENV['JAVA_HOME'] = @settings['java_home']
    local_repository = @settings['repositories']['local']

    vars = {'repositories.local' => local_repository }

    jvm_args = lang_config['jvmargs']
    jvm_args = [] if jvm_args == nil

    jvm_args = jvm_args.collect { |arg| arg.interpolate(vars) }

    classpath = lang_config['classpath']
    classpath = [] if classpath == nil

    lang_config['artifacts'].each do |name, artifact|
      group, id, type,version = artifact.split(':')
      
      file_name = local_repository + '/' + 
                  group.gsub('.', '/') + '/' + 
                  id.gsub('.', '/') + '/' + 
                  version + '/' + 
                  id.gsub('.', '/') + '-' + version + '.' + type

      unless File.exist? file_name
        puts 'File ' + file_name + ' does not exists.'
      else
        classpath << file_name
      end
    end

    pause = false

    if(ARGV.include? '--wait')
      ARGV.delete '--wait'
      pause = true
    end

    Rjb::load(classpath.join(File::PATH_SEPARATOR), jvmargs = jvm_args)       

    ARGV[0, 0] = lang_config['command_line'] if lang_config['command_line']

    Rjb::import(lang_config['start_class']).main(ARGV)
    
    STDIN.gets if pause
  end
end