Class Help

java/src/org/openqa/selenium/grid/Main.java:86–156

  }

  private static class Help implements CliCommand {

    private final Set<CliCommand> commands;

    public Help(Set<CliCommand> commands) {
      this.commands = commands;
    }

    @Override
    public String getName() {
      return "Selenium Server commands";
    }

    @Override
    public Set<Role> getConfigurableRoles() {
      return Collections.emptySet();
    }

    @Override
    public Set<Object> getFlagObjects() {
      return Collections.emptySet();
    }

    @Override
    public String getDescription() {
      return "A list of all the commands available. To use one, run `java -jar selenium.jar "
          + "commandName`.";
    }

    @Override
    public Executable configure(PrintStream out, PrintStream err, String... args) {
      return () -> {
        int longest =
            commands.stream()
                    .filter(CliCommand::isShown)
                    .map(CliCommand::getName)
                    .max(Comparator.comparingInt(String::length))
                    .map(String::length)
                    .orElse(0)
                + 2; // two space padding either side

        PrintWriter outWriter = new WrappedPrintWriter(out, 72, 0);
        outWriter.append(getName()).append("\n\n");
        outWriter.append(getDescription()).append("\n").append("\n");

        int indent = Math.min(longest + 2, 25);
        String format = "  %-" + longest + "s";

        PrintWriter indented = new WrappedPrintWriter(out, 72, indent);
        commands.stream()
            .filter(CliCommand::isShown)
            .forEach(
                cmd ->
                    indented
                        .format(format, cmd.getName())
                        .append(cmd.getDescription())
                        .append("\n"));