Method: NERA::SimulatorLayerController#remove_simulator

Defined in:
lib/nera/nera_simulator_layer_controller.rb

#remove_simulator(sim_name) ⇒ Object 



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# File 'lib/nera/nera_simulator_layer_controller.rb', line 84

def remove_simulator( sim_name)
  flag = true
  sim_class = get_class_by_name( sim_name)
  return nil unless sim_class
  sim_id = (list.find do |rec| rec[:name] == sim_name end)[:id]
  return nil unless sim_id
  job_records = NERA::JobRecords.new( @db_folders.path_to_jobs_table )
  job_records.transaction {
    @sim_records.transaction {
      # check uncompleted jobs
      found = job_records.list_all.find do |rec| rec[:simulator] == sim_name end
      if found
        flag = nil
        return
      end
      # destroy the record
      f = @sim_records.destroy( sim_id)
      raise "Couldn't destroy the record #{sim_id} in simulators table" unless f
      # compression
      path1 = @db_folders.path_to_parameter_layer( sim_class)
      path2 = File.dirname( @db_folders.path_to_parameters_table( sim_class) )
      path3 = File.join( @db_folders.path_to_simulator_layer, "Simulator_classes", "#{sim_name}.rb")
      raise "Couldn't find #{path1}" unless File.directory?(path1)
      raise "Couldn't find #{path2}" unless File.directory?(path2)
      raise "Couldn't find #{path3}" unless File.exist?(path3)
      base_path = Pathname.new( @db_folders.path_to_simulator_layer ).realpath
      path1 = Pathname.new( path1).realpath.relative_path_from( base_path).to_s
      path2 = Pathname.new( path2).realpath.relative_path_from( base_path).to_s
      path3 = Pathname.new( path3).realpath.relative_path_from( base_path).to_s
      Dir.chdir(base_path) {
        tar_file = "#{sim_id}_#{sim_name}.tar"
        cmd = "tar cf #{tar_file} #{path1} #{path2} #{path3}"
        system cmd
        raise "command \"#{cmd}\" failed." unless $? == 0
        bz2_file = tar_file + '.bz2'
        FileUtils.rm( bz2_file) if File.exist?( bz2_file )
        cmd = "bzip2 #{tar_file}"
        system cmd
        raise "command \"#{cmd}\" failed." unless $? == 0
        FileUtils.rm_r( path1)
        FileUtils.rm_r( path2)
        FileUtils.rm( path3)
      }
      # remove inherited classes
      NERA::Simulator.remove_simulator( sim_class)
      # keep a log
      @db_folders.logger.info(self.class.to_s) {
        "removed the simulator (#{sim_class.to_s})"
      }
    }
  }
  return flag
end