# File lib/taskjuggler/apps/Tj3Daemon.rb, line 26
    def initialize
      super
      @mandatoryArgs = '[<tjp file> [<tji file> ...] ...]'

      @mhi = MessageHandlerInstance.instance
      @mhi.logFile = File.join(Dir.getwd, "/#{AppConfig.appName}.log")
      @mhi.appName = AppConfig.appName
      # By default show only warnings and more serious messages.
      @mhi.outputLevel = :warning
      @daemonize = true
      @uriFile = File.join(Dir.getwd, '.tj3d.uri')
      @port = nil
      @webServer = false
      @webServerPort = 8080
      @webdPidFile = File.join(Dir.getwd, ".tj3webd-#{$$}.pid").untaint
    end

# File lib/taskjuggler/apps/Tj3Daemon.rb, line 80
    def appMain(files)
      broker = ProjectBroker.new
      @rc.configure(self, 'global')
      @rc.configure(@mhi, 'global.log')
      @rc.configure(broker, 'global')
      @rc.configure(broker, 'daemon')

      # Set some config variables if corresponding data was provided via the
      # command line.
      broker.port = @port if @port
      broker.uriFile = @uriFile.untaint
      broker.projectFiles = sortInputFiles(files) unless files.empty?
      broker.daemonize = @daemonize
      # Create log files for standard IO for each child process if the daemon
      # is not disconnected from the terminal.
      broker.logStdIO = !@daemonize

      if @webServer
        webdCommand = "tj3webd --webserver-port #{@webServerPort} " +
                               "--pidfile #{@webdPidFile}"
        # Also start the web server as a separate process. We keep the PID, so
        # we can terminate that process again when we exit the daemon.
        begin
          `#{webdCommand}`
        rescue
          error('tj3webd_start_failed', "Could not start tj3webd: #{$!}")
        end
        info('web_server_started', "Web server started as '#{webdCommand}'")
      end

      broker.start

      if @webServer
        pid = nil
        begin
          # Read the PID of the web server from the PID file.
          File.open(@webdPidFile, 'r') do |f|
            pid = f.read.to_i
          end
        rescue
          warning('cannot_read_webd_pidfile',
                  "Cannot read tj3webd PID file (#{@webdPidFile}): #{$!}")
        end
        # If we have started the web server, we are also trying to terminate
        # that process again.
        begin
          Process.kill("TERM", pid)
        rescue
          warning('tj3webd_term_failed',
                  "Could not terminate web server: #{$!}")
        end
        info('web_server_terminated', "Web server with PID #{pid} terminated")
      end

      0
    end

# File lib/taskjuggler/apps/Tj3Daemon.rb, line 43
    def processArguments(argv)
      super do
        @opts.banner += "The TaskJuggler daemon can be used to quickly generate reports for a number\nof scheduled projects that are resident in memory. Once the daemon has been\nstarted tj3client can be used to control it.\n"
        @opts.on('-d', '--dont-daemonize',
                 format("Don't put program into daemon mode. Keep it " +
                        'connected to the terminal and show debug output.')) do
          @daemonize = false
        end
        @opts.on('-p', '--port <NUMBER>', Integer,
                 format('Use the specified TCP/IP port to serve tj3client ' +
                        'requests (Default: 8474).')) do |arg|
          @port = arg
        end
        @opts.on('--urifile', String,
                 format('If the port is 0, use this file to store the URI ' +
                        'of the server.')) do |arg|
          @uriFile = arg
        end
        @opts.on('-w', '--webserver',
                 format('Start a web server that serves the reports of ' +
                        'the loaded projects.')) do
          @webServer = true
        end
        @opts.on('--webserver-port <NUMBER>', Integer,
                 format('Use the specified TCP/IP port to serve web browser ' +
                        'requests (Default: 8080).')) do |arg|
          @webServerPort = arg
        end

      end
    end