Method: NERA::SimulatorLayerController#import_simulator

Defined in:

lib/nera/nera_simulator_layer_controller.rb

#import_simulator(sim_file) ⇒ Object

# File 'lib/nera/nera_simulator_layer_controller.rb', line 208

def import_simulator( sim_file)
  flag = true
  return nil unless sim_file =~ /^([0-9]+)_([A-Z]\w*)\.tar\.bz2/
  return nil unless File.exist?( File.join(@db_folders.path_to_simulator_layer,sim_file) )
  sim_name = $2
  job_records = NERA::JobRecords.new( @db_folders.path_to_jobs_table )

  job_records.transaction {
    @sim_records.transaction {
      # check name overlap
      if @sim_records.list.find do |rec| rec[:name] == sim_name end
        flag = nil
        return
      end
      raise "must not happen" if File.directory?( File.join( @db_folders.path_to_simulator_layer, sim_name ) )
      raise "must not happen" if File.directory?( File.join( File.dirname(@db_folders.path_to_simulators_table), sim_name) )
      raise "must not happen" if File.exist?( File.join( @db_folders.path_to_simulator_layer, "Simulator_classes", "#{sim_name}.rb") )
      # decompress the file
      Dir.chdir(@db_folders.path_to_simulator_layer) {
        # cmd = "bunzip2 #{sim_file}"
        # system cmd
        # raise "command \"#{cmd}\" failed." unless $? == 0
        tar_file = sim_file.sub(/\.bz2$/,'')
        cmd = "tar xjf #{sim_file}"
        system cmd
        raise "command \"#{cmd}\" failed." unless $? == 0
      }
      # load simulator definition
      require File.join( @db_folders.path_to_simulator_layer, "Simulator_classes", "#{sim_name}.rb")
      sim_class = sim_name.split(/::/).inject(Object) {|c,name| c.const_get(name) }
      raise "invalid definition of simulator class #{sim_name}" unless sim_class.is_a?(Class)
      NERA::Simulator.add_simulator( sim_class)
      flag = @sim_records.add( sim_class)
      # keep a log
      @db_folders.logger.info(self.class.to_s) {
        "imported the simulator (#{sim_class.to_s})"
      }
    }
  }
  return flag
end