Example usage for java.io Console readline

Introduction

In this page you can find the example usage for java.io Console readline.

Prototype

private char[] readline(boolean zeroOut) throws IOException 

Source Link

Usage

From source file:com.linkedin.bowser.tool.REPLCommandLine.java

public void doRun() throws Exception {
    StringBuilder line = new StringBuilder();
    Console console = System.console();

    while (true) {
        String input;/*from  w  w  w.j a  v a  2 s. c  om*/
        if (line.length() > 0) {
            input = console.readLine(_dots);
        } else {
            input = console.readLine(_prompt);
            if ("quit".equals(input) || "exit".equals(input))
                break;
        }

        if (input.endsWith("\\")) {
            line.append(input.substring(0, input.length() - 1));
            line.append("\n");
            continue;
        }

        if (line.length() > 0) {
            input = line.toString() + input;
            line = new StringBuilder();
        }

        try {
            _repl.execute(input, System.out);
        } catch (QueryRuntimeException e) {
            System.err.println(e.getMessage());
        } catch (QueryFormatException e) {
            System.err.println(e.getMessage());
        }
    }
}

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From source file:com.jwm123.loggly.reporter.Configuration.java

public void update() throws Exception {
    Console console = System.console();
    do {/*from   w  w w  .j  a v a2 s .  c o  m*/
        username = console.readLine("Username: ");
    } while (StringUtils.isBlank(username));
    do {
        password = new String(console.readPassword("Password: "));
    } while (StringUtils.isBlank(password));
    do {
        account = console.readLine("Loggly Account: ");
    } while (StringUtils.isBlank(account));
    mailServer = console.readLine("Mail Server: ");
    mailFrom = console.readLine("Mail From: ");
    String mailPortStr = console.readLine("Mail Port [25]: ");
    if (StringUtils.isBlank(mailPortStr) || !mailPortStr.matches("\\d*")) {
        mailPort = 25;
    } else {
        mailPort = new Integer(mailPortStr);
    }
    if (StringUtils.isNotBlank(mailServer)) {
        mailUsername = console.readLine("Mail Username: ");
        if (StringUtils.isNotBlank(mailUsername)) {
            mailPassword = new String(console.readPassword("Mail Password: "));
        }
    }
    writeOut();
}

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From source file:org.ballerinalang.containers.docker.cmd.DockerCmd.java

/**
 * Prompt user to continue Docker image building.
 *
 * @param imageName    Name of the image to be built.
 * @param imageVersion Version of the image to be built
 * @return True if confirmed, false if aborted or exceeded attempts.
 *//*from   ww w .  j a  v a2 s  .c o m*/
private boolean canProceed(String imageName, String imageVersion) {
    Console console = System.console();
    String choice;
    String dockerHostToPrint = (dockerHost != null) ? dockerHost : DEFAULT_DOCKER_HOST;

    int attempts = 3;
    do {
        choice = console.readLine("Build docker image [" + imageName + ":" + imageVersion + "] in docker host ["
                + dockerHostToPrint + "]? (y/n): ");

        if (choice.equalsIgnoreCase("y")) {
            return true;
        }

        if (choice.equalsIgnoreCase("n")) {
            return false;
        }

    } while (--attempts > 0);

    return false;
}

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From source file:com.netflix.spinnaker.halyard.cli.command.v1.NestableCommand.java

/**
 * This recursively walks the chain of subcommands, until it finds the last in the chain, and runs executeThis.
 *
 * @see NestableCommand#executeThis()//from  w  w  w  .  j  a v a2s  .c o  m
 */
public void execute() {
    String subCommand = commander.getParsedCommand();
    if (subCommand == null) {
        if (help) {
            showHelp();
        } else {
            if (this instanceof DeprecatedCommand) {
                AnsiUi.warning("This command is deprecated.");
                AnsiUi.warning(((DeprecatedCommand) this).getDeprecatedWarning());
            }

            if (this instanceof ProtectedCommand && !GlobalOptions.getGlobalOptions().isQuiet()) {
                String prompt = ((ProtectedCommand) this).getPrompt();
                Console console = System.console();
                String input = console.readLine(prompt + " Do you want to continue? (Y/n) ");
                if (!input.equalsIgnoreCase("y")) {
                    AnsiUi.raw("Aborted.");
                    return;
                }
            }
            safeExecuteThis();
        }
    } else {
        subcommands.get(subCommand).execute();
    }
}

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From source file:org.wildfly.security.tool.Command.java

/**
 * Prompt for interactive user input with possible confirmation of input data.
 * When data are not confirmed tool exits with {@link #INPUT_DATA_NOT_CONFIRMED} exit code
 *
 * @param echo echo the characters typed
 * @param prompt text to display before the input
 * @param confirm confirm data after the first input
 * @param confirmPrompt confirmation text
 * @return data as user inputs it//from w ww  . j  a v  a  2 s.  co  m
 * @throws Exception
 */
protected String prompt(boolean echo, String prompt, boolean confirm, String confirmPrompt) throws Exception {
    Console console = System.console();
    if (echo || console == null) {
        if (console == null && redirectionValues == null) {
            try (BufferedReader in = new BufferedReader(new InputStreamReader(System.in))) {
                redirectionValues = new ArrayList<>();
                String value;
                while ((value = in.readLine()) != null) {
                    redirectionValues.add(value);
                }
            } catch (IOException e) {
                setStatus(GENERAL_CONFIGURATION_ERROR);
                throw new Exception(e);
            }
        }
        String first = console != null ? console.readLine(prompt)
                : (redirectionValues.size() == 0 ? null : redirectionValues.remove(0));
        if (first != null && confirm) {
            String second = console != null ? console.readLine(confirmPrompt)
                    : (redirectionValues.size() == 0 ? null : redirectionValues.remove(0));
            if (first.equals(second)) {
                return first;
            } else {
                System.err.println(ElytronToolMessages.msg.inputDataNotConfirmed());
                System.exit(INPUT_DATA_NOT_CONFIRMED);
                return null;
            }
        } else {
            return first;
        }
    } else {
        char[] inVisible = console.readPassword(prompt != null ? prompt : "Password:");
        if (inVisible != null && confirm) {
            char[] inVisible2 = console
                    .readPassword(confirmPrompt != null ? confirmPrompt : "Confirm password:");
            if (Arrays.equals(inVisible, inVisible2)) {
                return new String(inVisible);
            } else {
                System.err.println(ElytronToolMessages.msg.inputDataNotConfirmed());
                System.exit(INPUT_DATA_NOT_CONFIRMED);
                return null;
            }
        }
        if (inVisible != null) {
            return new String(inVisible);
        }
        return null;
    }
}

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From source file:org.overlord.sramp.wagon.SrampWagon.java

/**
 * Prompts the user to enter a username for authentication credentials.
 *///www.ja va 2  s .  c  o  m
private String promptForUsername() {
    Console console = System.console();
    if (console != null) {
        return console.readLine(Messages.i18n.format("USERNAME_PROMPT")); //$NON-NLS-1$
    } else {
        System.err.println(Messages.i18n.format("NO_CONSOLE_ERROR_1")); //$NON-NLS-1$
        return null;
    }
}

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