Examples of jline.Terminal

jline.Terminal
Representation of the input terminal for a platform. Handles any initialization that the platform may need to perform in order to allow the {@link ConsoleReader} to correctly handleinput. @author Marc Prud'hommeaux

            }
        } else {
            // We are going into full blown interactive shell mode.


            final TerminalFactory terminalFactory = new TerminalFactory();
            final Terminal terminal = terminalFactory.getTerminal();
            ConsoleImpl console = createConsole(commandProcessor, threadIO, in, out, err, terminal);
            CommandSession session = console.getSession();
            session.put("USER", user);
            session.put("APPLICATION", application);
            session.put(NameScoping.MULTI_SCOPE_MODE_KEY, Boolean.toString(isMultiScopeMode()));
            session.put("#LINES", new Function() {
                public Object execute(CommandSession session, List<Object> arguments) throws Exception {
                    return Integer.toString(terminal.getHeight());
                }
            });
            session.put("#COLUMNS", new Function() {
                public Object execute(CommandSession session, List<Object> arguments) throws Exception {
                    return Integer.toString(terminal.getWidth());
                }
            });
            session.put(".jline.terminal", terminal);


            console.run();

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            }
            config.setCommand(sb.toString());
        }


        SshClient client = null;
        Terminal terminal = null;
        try {
            client = SshClient.setUpDefaultClient();
            setupAgent(config.getUser(), client);
            client.start();
            ClientSession session = connectWithRetries(client, config);
            Console console = System.console();
            console.printf("Logging in as %s\n", config.getUser());
            if (!session.authAgent(config.getUser()).await().isSuccess()) {
                AuthFuture authFuture;
                boolean useDefault = config.getPassword() != null;
                do {
                    String password;
                    if (useDefault) {
                        password = config.getPassword();
                        useDefault = false;
                    } else {
                        if (console != null) {
                            char[] readPassword = console.readPassword("Password: ");
                            if (readPassword != null) {
                                password = new String(readPassword);
                            } else {
                                return;
                            }
                        } else {
                            throw new Exception("Unable to prompt password: could not get system console");
                        }
                    }
                    authFuture = session.authPassword(config.getUser(), password);
                } while (authFuture.await().isFailure());
                if (!authFuture.isSuccess()) {
                    throw new Exception("Authentication failure");
                }
            }
            ClientChannel channel;
            if (config.getCommand().length() > 0) {
                channel = session.createChannel("exec", config.getCommand() + "\n");
                channel.setIn(new ByteArrayInputStream(new byte[0]));
            } else {
                TerminalFactory.registerFlavor(TerminalFactory.Flavor.UNIX, NoInterruptUnixTerminal.class);
                terminal = TerminalFactory.create();
                channel = session.createChannel("shell");
                ConsoleInputStream in = new ConsoleInputStream(terminal.wrapInIfNeeded(System.in));
                new Thread(in).start();
                channel.setIn(in);
                ((ChannelShell) channel).setPtyColumns(terminal != null ? terminal.getWidth() : 80);
                ((ChannelShell) channel).setupSensibleDefaultPty();
                ((ChannelShell) channel).setAgentForwarding(true);
                String ctype = System.getenv("LC_CTYPE");
                if (ctype == null) {
                    ctype = Locale.getDefault().toString() + "."
                            + System.getProperty("input.encoding", Charset.defaultCharset().name());
                }
                ((ChannelShell) channel).setEnv("LC_CTYPE", ctype);
            }
            channel.setOut(AnsiConsole.wrapOutputStream(System.out));
            channel.setErr(AnsiConsole.wrapOutputStream(System.err));
            channel.open();
            channel.waitFor(ClientChannel.CLOSED, 0);
        } catch (Throwable t) {
            if (config.getLevel() > SimpleLogger.WARN) {
                t.printStackTrace();
            } else {
                System.err.println(t.getMessage());
            }
            System.exit(1);
        } finally {
            try {
                client.stop();
            } catch (Throwable t) {
            }
            try {
                if (terminal != null) {
                    terminal.restore();
                }
            } catch (Throwable t) {
            }
        }
        System.exit(0);

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        }
        return commands;
    }


    protected void printMethodList(CommandSession session, PrintStream out, SortedMap<String, String> commands) {
        Terminal term = (Terminal) session.get(".jline.terminal");
        int termWidth = term != null ? term.getWidth() : 80;
        out.println(Ansi.ansi().a(Ansi.Attribute.INTENSITY_BOLD).a("COMMANDS").a(Ansi.Attribute.RESET));
        ShellTable table = new ShellTable().noHeaders().separator(" ").size(termWidth);
        table.column(new Col("Command").maxSize(35));
        table.column(new Col("Description"));
        for (Map.Entry<String,String> entry : commands.entrySet()) {

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        return null;
    }


    private int getTermWidth() {
        Terminal term = (Terminal) session.get(".jline.terminal");
        return term != null ? term.getWidth() : 80;
    }

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    }


    protected void printUsage(CommandSession session, Action action, Map<Option, Field> optionsMap, Map<Argument, Field> argsMap, PrintStream out) {
        Command command = action.getClass().getAnnotation(Command.class);
        if (command != null) {
            Terminal term = session != null ? (Terminal) session.get(".jline.terminal") : null;
            List<Argument> arguments = new ArrayList<Argument>(argsMap.keySet());
            Collections.sort(arguments, new Comparator<Argument>() {
                public int compare(Argument o1, Argument o2) {
                    return Integer.valueOf(o1.index()).compareTo(Integer.valueOf(o2.index()));
                }
            });
            Set<Option> options = new HashSet<Option>(optionsMap.keySet());
            options.add(HELP);
            boolean globalScope = NameScoping.isGlobalScope(session, command.scope());
            if (command != null && (command.description() != null || command.name() != null)) {
                out.println(Ansi.ansi().a(Ansi.Attribute.INTENSITY_BOLD).a("DESCRIPTION").a(Ansi.Attribute.RESET));
                out.print("        ");
                if (command.name() != null) {
                    if (globalScope) {
                        out.println(Ansi.ansi().a(Ansi.Attribute.INTENSITY_BOLD).a(command.name()).a(Ansi.Attribute.RESET));
                    } else {
                        out.println(Ansi.ansi().a(command.scope()).a(":").a(Ansi.Attribute.INTENSITY_BOLD).a(command.name()).a(Ansi.Attribute.RESET));
                    }
                    out.println();
                }
                out.print("\t");
                out.println(command.description());
                out.println();
            }
            StringBuffer syntax = new StringBuffer();
            if (command != null) {
                if (globalScope) {
                    syntax.append(command.name());
                } else {
                    syntax.append(String.format("%s:%s", command.scope(), command.name()));
                }
            }
            if (options.size() > 0) {
                syntax.append(" [options]");
            }
            if (arguments.size() > 0) {
                syntax.append(' ');
                for (Argument argument : arguments) {
                    if (!argument.required()) {
                        syntax.append(String.format("[%s] ", argument.name()));
                    } else {
                        syntax.append(String.format("%s ", argument.name()));
                    }
                }
            }


            out.println(Ansi.ansi().a(Ansi.Attribute.INTENSITY_BOLD).a("SYNTAX").a(Ansi.Attribute.RESET));
            out.print("        ");
            out.println(syntax.toString());
            out.println();
            if (arguments.size() > 0) {
                out.println(Ansi.ansi().a(Ansi.Attribute.INTENSITY_BOLD).a("ARGUMENTS").a(Ansi.Attribute.RESET));
                for (Argument argument : arguments) {
                    out.print("        ");
                    out.println(Ansi.ansi().a(Ansi.Attribute.INTENSITY_BOLD).a(argument.name()).a(Ansi.Attribute.RESET));
                    printFormatted("                ", argument.description(), term != null ? term.getWidth() : 80, out);
                    if (!argument.required()) {
                        if (argument.valueToShowInHelp() != null && argument.valueToShowInHelp().length() != 0) {
                            try {
                                if (Argument.DEFAULT_STRING.equals(argument.valueToShowInHelp())) {
                                    argsMap.get(argument).setAccessible(true);
                                    Object o = argsMap.get(argument).get(action);
                                    printObjectDefaultsTo(out, o);
                                } else {
                                    printDefaultsTo(out, argument.valueToShowInHelp());
                                }
                            } catch (Throwable t) {
                                // Ignore
                            }
                        }
                    }
                }
                out.println();
            }
            if (options.size() > 0) {
                out.println(Ansi.ansi().a(Ansi.Attribute.INTENSITY_BOLD).a("OPTIONS").a(Ansi.Attribute.RESET));
                for (Option option : options) {
                    String opt = option.name();
                    for (String alias : option.aliases()) {
                        opt += ", " + alias;
                    }
                    out.print("        ");
                    out.println(Ansi.ansi().a(Ansi.Attribute.INTENSITY_BOLD).a(opt).a(Ansi.Attribute.RESET));
                    printFormatted("                ", option.description(), term != null ? term.getWidth() : 80, out);
                    if (option.valueToShowInHelp() != null && option.valueToShowInHelp().length() != 0) {
                        try {
                            if (Option.DEFAULT_STRING.equals(option.valueToShowInHelp())) {
                                optionsMap.get(option).setAccessible(true);
                                Object o = optionsMap.get(option).get(action);
                                printObjectDefaultsTo(out, o);
                            } else {
                                printDefaultsTo(out, option.valueToShowInHelp());
                            }
                        } catch (Throwable t) {
                            // Ignore
                        }
                    }
                }
                out.println();
            }
            if (command.detailedDescription().length() > 0) {
                out.println(Ansi.ansi().a(Ansi.Attribute.INTENSITY_BOLD).a("DETAILS").a(Ansi.Attribute.RESET));
                String desc = loadDescription(action.getClass(), command.detailedDescription());
                printFormatted("        ", desc, term != null ? term.getWidth() : 80, out);
            }
        }
    }

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            session.execute(sb);
        } else {
            // We are going into full blown interactive shell mode.


            final TerminalFactory terminalFactory = new TerminalFactory();
            final Terminal terminal = terminalFactory.getTerminal();
            Console console = createConsole(commandProcessor, in, out, err, terminal);
            CommandSession session = console.getSession();
            session.put("USER", user);
            session.put("APPLICATION", application);
            session.put(NameScoping.MULTI_SCOPE_MODE_KEY, Boolean.toString(isMultiScopeMode()));
            session.put("#LINES", new Function() {
                public Object execute(CommandSession session, List<Object> arguments) throws Exception {
                    return Integer.toString(terminal.getHeight());
                }
            });
            session.put("#COLUMNS", new Function() {
                public Object execute(CommandSession session, List<Object> arguments) throws Exception {
                    return Integer.toString(terminal.getWidth());
                }
            });
            session.put(".jline.terminal", terminal);


            console.run();

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      return;
    }
    int maxWidth = 100;
    ConsoleReader reader = getConsoleReader();
    if (reader != null) {
      Terminal terminal = reader.getTerminal();
      maxWidth = terminal.getWidth() - 15;
      out.setLineLimit(terminal.getHeight() - 2);
    }
    format(out, rowResult, maxWidth);
  }

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    }


    int maxWidth = 100;
    ConsoleReader reader = getConsoleReader();
    if (reader != null) {
      Terminal terminal = reader.getTerminal();
      maxWidth = terminal.getWidth() - 15;
      out.setLineLimit(terminal.getHeight() - 2);
    }
    long s = System.nanoTime();
    BlurResults blurResults = client.query(tablename, blurQuery);
    long e = System.nanoTime();
    long timeInNanos = e - s;

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    Set<String> sizes = new HashSet<String>(Arrays.asList(resolveShortNames(sizesStr.split(","), properties)));
    Set<String> keys = new HashSet<String>(metricNames.values());


    ConsoleReader reader = this.getConsoleReader();
    if (reader != null) {
      Terminal terminal = reader.getTerminal();
      _height = terminal.getHeight() - 2;
      _width = terminal.getWidth() - 2;
      try {
        reader.setPrompt("");
        reader.clearScreen();
      } catch (IOException e) {
        if (Main.debug) {
          e.printStackTrace();
        }
      }


      startCommandWatcher(reader, quit, help, this);
    }


    List<String> shardServerList = new ArrayList<String>(client.shardServerList(cluster));
    Collections.sort(shardServerList);
    Map<String, AtomicReference<Client>> shardClients = setupClients(shardServerList);


    String shardServerLabel = properties.getProperty(TOP_SHARD_SERVER_SHORTNAME);
    int longestServerName = Math.max(getSizeOfLongestKey(shardClients), shardServerLabel.length());


    StringBuilder header = new StringBuilder("%" + longestServerName + "s");
    for (int i = 1; i < labels.length; i++) {
      header.append(" %10s");
    }


    do {
      int lineCount = 0;
      StringBuilder output = new StringBuilder();
      if (quit.get()) {
        return;
      } else if (help.get()) {
        showHelp(output, labels, helpMap);
      } else {
        output.append(truncate(String.format(header.toString(), (Object[]) labels)) + "\n");
        lineCount++;
        SERVER: for (Entry<String, AtomicReference<Client>> e : new TreeMap<String, AtomicReference<Client>>(
            shardClients).entrySet()) {
          String shardServer = e.getKey();
          AtomicReference<Client> ref = e.getValue();
          Map<String, Metric> metrics = getMetrics(shardServer, ref, keys);
          if (metrics == null) {
            String line = String.format("%" + longestServerName + "s*%n", shardServer);
            output.append(line);
            lineCount++;
            if (tooLong(lineCount)) {
              break SERVER;
            }
          } else {
            Object[] cols = new Object[labels.length];
            int c = 0;
            cols[c++] = shardServer;
            StringBuilder sb = new StringBuilder("%" + longestServerName + "s");


            for (int i = 1; i < labels.length; i++) {
              String mn = metricNames.get(labels[i]);
              Metric metric = metrics.get(mn);
              Double value;
              if (metric == null) {
                value = null;
              } else {
                Map<String, Double> doubleMap = metric.getDoubleMap();
                value = doubleMap.get("oneMinuteRate");
                if (value == null) {
                  value = doubleMap.get("value");
                }
              }
              if (value == null) {
                value = 0.0;
              }
              cols[c++] = humanize(value, sizes.contains(mn));
              sb.append(" %10s");
            }
            output.append(truncate(String.format(sb.toString(), cols)) + "\n");
            lineCount++;
            if (tooLong(lineCount)) {
              break SERVER;
            }
          }
        }
      }
      if (reader != null) {
        try {
          reader.clearScreen();
        } catch (IOException e) {
          if (Main.debug) {
            e.printStackTrace();
          }
        }
      }
      out.print(output.toString());
      out.flush();
      if (reader != null) {
        try {
          synchronized (this) {
            wait(3000);
          }
        } catch (InterruptedException e) {
          return;
        }
        Terminal terminal = reader.getTerminal();
        _height = terminal.getHeight() - 2;
        _width = terminal.getWidth() - 2;


        List<String> currentShardServerList = new ArrayList<String>(client.shardServerList(cluster));
        Collections.sort(currentShardServerList);
        if (!shardServerList.equals(currentShardServerList)) {
          close(shardClients);

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    int[] cols = new int[2];
    cols[0] = 20;
    cols[1] = totalWidth - cols[0];
    ColumnBasedPrintWriter out = new ColumnBasedPrintWriter(outPw, cols);
    if (reader != null) {
      Terminal terminal = reader.getTerminal();
      out.setLineLimit(terminal.getHeight() - 2);
    }
    CommandLine cmd = parse(args, outPw);
    if (cmd == null) {
      return;
    }

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