org.aesh.readline.Readline Java Examples

@Test
public void testSignal() throws IOException, InterruptedException {
    PipedOutputStream outputStream = new PipedOutputStream();
    PipedInputStream pipedInputStream = new PipedInputStream(outputStream);
    ByteArrayOutputStream out = new ByteArrayOutputStream();

    TerminalConnection connection = new TerminalConnection(Charset.defaultCharset(), pipedInputStream, out);
    Attributes attributes = new Attributes();
    attributes.setLocalFlag(Attributes.LocalFlag.ECHOCTL, true);
    connection.setAttributes(attributes);

    Readline readline = new Readline();
    readline.readline(connection, new Prompt(""), s -> {  });

    connection.openNonBlocking();
    outputStream.write(("FOO").getBytes());
    outputStream.flush();
    Thread.sleep(100);
    connection.getTerminal().raise(Signal.INT);
    connection.close();

    Assert.assertEquals("FOO^C"+ Config.getLineSeparator(), new String(out.toByteArray()));
}
 

@Test
public void testSignalEchoCtlFalse() throws IOException, InterruptedException {
    PipedOutputStream outputStream = new PipedOutputStream();
    PipedInputStream pipedInputStream = new PipedInputStream(outputStream);
    ByteArrayOutputStream out = new ByteArrayOutputStream();

    TerminalConnection connection = new TerminalConnection(Charset.defaultCharset(), pipedInputStream, out);

    Readline readline = new Readline();
    readline.readline(connection, new Prompt(""), s -> {  });

    connection.openNonBlocking();
    outputStream.write(("FOO").getBytes());
    outputStream.flush();
    Thread.sleep(100);
    connection.getTerminal().raise(Signal.INT);
    connection.close();

    Assert.assertEquals(new String(out.toByteArray()), "FOO"+ Config.getLineSeparator());
}
 

ReadlineConsole(Settings settings) throws IOException {
    this.settings = settings;
    readlineHistory = new FileHistory(settings.getHistoryFile(),
            settings.getHistorySize(), settings.getPermission(), false);
    if (settings.isDisableHistory()) {
        readlineHistory.disable();
    } else {
        readlineHistory.enable();
    }
    if (isTraceEnabled) {
        LOG.tracef("History is enabled? %s", !settings.isDisableHistory());
    }
    aliasManager = new AliasManager(new File(Config.getHomeDir()
            + Config.getPathSeparator() + ".aesh_aliases"), true);
    AliasPreProcessor aliasPreProcessor = new AliasPreProcessor(aliasManager);
    preProcessors.add(aliasPreProcessor);
    completions.add(new AliasCompletion(aliasManager));
    readline = new Readline();
}
 

CliShell(TerminalConnection connection) throws IOException {
    this.connection = connection;
    this.terminal = connection.getTerminal();
    if (terminal.getCodePointConsumer() == null) {
        stdOut = new Encoder(Charset.defaultCharset(), this::write);
    } else {
        stdOut = terminal.getCodePointConsumer();
    }
    readline = new Readline(EditModeBuilder.builder().create());
}
 

private static void read(TerminalConnection connection, Readline readline, String prompt) {
    readline.readline(connection, prompt, input -> {
        if(input != null && input.equals("exit")) {
            connection.write("we're exiting\n");
            connection.close();
        }
        else {
            connection.write("=====> "+input+"\n");
            //lets read until we get exit
            read(connection, readline, prompt);
        }
    });
}
 

@Test
public void alias() throws Exception {
    PipedOutputStream outputStream = new PipedOutputStream();
    PipedInputStream pipedInputStream = new PipedInputStream(outputStream);
    ByteArrayOutputStream out = new ByteArrayOutputStream();

    TerminalConnection connection = new TerminalConnection(Charset.defaultCharset(), pipedInputStream, out);
    Readline readline = new Readline();

    File aliasFile = Config.isOSPOSIXCompatible() ?
            new File("src/test/resources/alias1") : new File("src\\test\\resources\\alias1");
    AliasManager aliasManager = new AliasManager(aliasFile, false);
    AliasPreProcessor aliasPreProcessor = new AliasPreProcessor(aliasManager);
    List<Function<String, Optional<String>>> preProcessors = new ArrayList<>();
    preProcessors.add(aliasPreProcessor);

    readline.readline(connection, new Prompt(""),
            s -> {
                //first check this
                assertEquals("ls -alF", s);
                //then call readline again, to check the next line
                readline.readline(connection, new Prompt(""),
                        t -> assertEquals("grep --color=auto -l", t),
                        null, preProcessors);
            } , null, preProcessors);

    outputStream.write(("ll"+Config.getLineSeparator()).getBytes());
    outputStream.write(("grep -l"+Config.getLineSeparator()).getBytes());
    outputStream.flush();
    connection.openNonBlocking();
    Thread.sleep(200);
}
 

@Test
public void testCustomSignal() throws IOException, InterruptedException {
    PipedOutputStream outputStream = new PipedOutputStream();
    PipedInputStream pipedInputStream = new PipedInputStream(outputStream);
    ByteArrayOutputStream out = new ByteArrayOutputStream();

    TerminalConnection connection = new TerminalConnection(Charset.defaultCharset(), pipedInputStream, out);
    connection.setSignalHandler( signal -> {
        if(signal == Signal.INT) {
            connection.write("BAR");
            connection.stdoutHandler().accept(Config.CR);
            connection.close();
        }
    });

    Readline readline = new Readline();
    readline.readline(connection, new Prompt(""), s -> {  });

    connection.openNonBlocking();
    outputStream.write(("GAH"+Config.getLineSeparator()).getBytes());
    outputStream.flush();
    Thread.sleep(250);
    assertEquals(new String(out.toByteArray()), "GAH"+Config.getLineSeparator());

    readline.readline(connection, new Prompt(""), s -> {  });
    outputStream.write(("FOO").getBytes());
    outputStream.flush();
    connection.getTerminal().raise(Signal.INT);
    Thread.sleep(250);

    assertEquals(new String(out.toByteArray()), "GAH"+Config.getLineSeparator()+"FOOBAR"+ Config.getLineSeparator());
}
 

/**
 * This has the side effect to create the internal readline instance.
 *
 * @param ch The Completion Handler.
 */
public void setCompletionHandler(CompletionHandler<? extends CompleteOperation> ch) {
    readline = new Readline(EditModeBuilder.builder().create(), null, ch);
}