Example usage for org.apache.commons.lang3 StringUtils isEmpty

List of usage examples for org.apache.commons.lang3 StringUtils isEmpty

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Introduction

In this page you can find the example usage for org.apache.commons.lang3 StringUtils isEmpty.

Prototype

public static boolean isEmpty(final CharSequence cs)

Source Link

Document

Checks if a CharSequence is empty ("") or null.

 StringUtils.isEmpty(null)      = true StringUtils.isEmpty("")        = true StringUtils.isEmpty(" ")       = false StringUtils.isEmpty("bob")     = false StringUtils.isEmpty("  bob  ") = false

NOTE: This method changed in Lang version 2.0.

Usage

From source file:com.qwazr.utils.Language.java

/**
 * Try to detect the language of a given text.
 * //w w  w.ja v a2s .c  om
 * @param text
 *            the text to identify
 * @param length
 *            the number of characters used for the language detection
 * @return the code of the detected language
 * @throws LangDetectException
 *             from langDetect package
 */
public static final String detect(String text, int length) throws LangDetectException {
    if (StringUtils.isEmpty(text))
        return null;
    Detector detector = DetectorFactory.create();
    detector.setMaxTextLength(length);
    detector.append(text);
    return detector.detect();
}

From source file:com.shenit.commons.codec.Base64Utils.java

/**
 * ?base 64?// w ww . j a  va  2 s  .  c om
 * 
 * @param str
 * @param enc
 * @return
 */
public static String base64EncodeHex(String str, String enc) {
    if (StringUtils.isEmpty(str))
        return null;
    enc = enc == null ? HttpUtils.ENC_UTF8 : enc;
    try {
        byte[] encoded = Base64.encodeBase64(str.getBytes(enc));
        return new String(encoded, enc);
    } catch (UnsupportedEncodingException e) {
        LOG.warn("[base64Encode] not supported encoding", e);
    }
    return null;
}

From source file:com.micromux.cassandra.jdbc.MetadataResultSetsTest.java

@BeforeClass
public static void setUpBeforeClass() throws Exception {

    // configure OPTIONS
    if (!StringUtils.isEmpty(TRUST_STORE)) {
        OPTIONS = String.format("trustStore=%s&trustPass=%s", URLEncoder.encode(TRUST_STORE), TRUST_PASS);
    }/*from w  w w . j  a  v  a 2  s.  c om*/

    Class.forName("com.micromux.cassandra.jdbc.CassandraDriver");
    String URL = String.format("jdbc:cassandra://%s:%d/%s?version=3.0.0&%s", HOST, PORT, "system", OPTIONS);
    System.out.println("Connection URL = '" + URL + "'");

    con = DriverManager.getConnection(URL);
    Statement stmt = con.createStatement();

    // Drop Keyspace
    String dropKS1 = String.format(DROP_KS, KEYSPACE1);
    String dropKS2 = String.format(DROP_KS, KEYSPACE2);

    try {
        stmt.execute(dropKS1);
        stmt.execute(dropKS2);
    } catch (Exception e) {
        /* Exception on DROP is OK */}

    // Create KeySpace
    String createKS1 = String.format(CREATE_KS, KEYSPACE1);
    String createKS2 = String.format(CREATE_KS, KEYSPACE2);
    stmt = con.createStatement();
    stmt.execute("USE system;");
    stmt.execute(createKS1);
    stmt.execute(createKS2);

    // Use Keyspace
    String useKS1 = String.format("USE \"%s\";", KEYSPACE1);
    String useKS2 = String.format("USE \"%s\";", KEYSPACE2);
    stmt.execute(useKS1);

    // Create the target Column family
    String createCF1 = "CREATE COLUMNFAMILY test1 (keyname text PRIMARY KEY," + " t1bValue boolean,"
            + " t1iValue int" + ") WITH comment = 'first TABLE in the Keyspace'" + ";";

    String createCF2 = "CREATE COLUMNFAMILY test2 (keyname text PRIMARY KEY," + " t2bValue boolean,"
            + " t2iValue int" + ") WITH comment = 'second TABLE in the Keyspace'" + ";";

    stmt.execute(createCF1);
    stmt.execute(createCF2);
    stmt.execute(useKS2);
    stmt.execute(createCF1);
    stmt.execute(createCF2);

    stmt.close();
    con.close();

    // open it up again to see the new CF
    con = DriverManager.getConnection(
            String.format("jdbc:cassandra://%s:%d/%s?version=3.0.0&%s", HOST, PORT, KEYSPACE1, OPTIONS));

}

From source file:com.github.hackersun.processor.factory.FactoryAnnotatedClass.java

/**
 * @throws ProcessingException if id() from annotation is null
 *//*from   w ww. j  a v  a  2 s.c  o  m*/
public FactoryAnnotatedClass(TypeElement classElement) throws ProcessingException {
    this.annotatedClassElement = classElement;
    Factory annotation = classElement.getAnnotation(Factory.class);
    id = annotation.id();

    if (StringUtils.isEmpty(id)) {
        throw new ProcessingException(classElement,
                "id() in @%s for class %s is null or empty! that's not allowed", Factory.class.getSimpleName(),
                classElement.getQualifiedName().toString());
    }

    // Get the full QualifiedTypeName
    try {
        Class<?> clazz = annotation.type();
        qualifiedGroupClassName = clazz.getCanonicalName();
        simpleFactoryGroupName = clazz.getSimpleName();
    } catch (MirroredTypeException mte) {
        DeclaredType classTypeMirror = (DeclaredType) mte.getTypeMirror();
        TypeElement classTypeElement = (TypeElement) classTypeMirror.asElement();
        qualifiedGroupClassName = classTypeElement.getQualifiedName().toString();
        simpleFactoryGroupName = classTypeElement.getSimpleName().toString();
    }
}

From source file:lineage2.gameserver.network.clientpackets.RequestExDeletePostFriendForPostBox.java

/**
 * Method runImpl./*  w ww. j a  va2 s .c o  m*/
 */
@Override
protected void runImpl() {
    Player player = getClient().getActiveChar();
    if (player == null) {
        return;
    }
    if (StringUtils.isEmpty(_name)) {
        return;
    }
    int key = 0;
    IntObjectMap<String> postFriends = player.getPostFriends();
    for (IntObjectMap.Entry<String> entry : postFriends.entrySet()) {
        if (entry.getValue().equalsIgnoreCase(_name)) {
            key = entry.getKey();
        }
    }
    if (key == 0) {
        player.sendPacket(SystemMsg.THE_NAME_IS_NOT_CURRENTLY_REGISTERED);
        return;
    }
    player.getPostFriends().remove(key);
    CharacterPostFriendDAO.getInstance().delete(player, key);
    player.sendPacket(
            new SystemMessage2(SystemMsg.S1_WAS_SUCCESSFULLY_DELETED_FROM_YOUR_CONTACT_LIST).addString(_name));
}

From source file:com.baifendian.swordfish.common.mail.MailSendUtil.java

/**
 * ??//www . j a v  a  2s  . c om
 *
 * @param receivers
 * @param title
 * @param content
 * @return
 */
public static boolean sendMails(Collection<String> receivers, String title, String content) {
    if (receivers == null) {
        LOGGER.error("Mail receivers is null.");
        return false;
    }

    receivers.removeIf((from) -> (StringUtils.isEmpty(from)));

    if (receivers.isEmpty()) {
        LOGGER.error("Mail receivers is empty.");
        return false;
    }

    // ?? email
    HtmlEmail email = new HtmlEmail();

    try {
        //  SMTP ?????, 163 "smtp.163.com"
        email.setHostName(mailServerHost);

        email.setSmtpPort(mailServerPort);

        // ?
        email.setCharset("UTF-8");
        // 
        for (String receiver : receivers) {
            email.addTo(receiver);
        }
        // ??
        email.setFrom(mailSender, mailSender);
        // ???????-??????
        email.setAuthentication(mailSender, mailPasswd);
        // ???
        email.setSubject(title);
        // ???? HtmlEmail? HTML 
        email.setMsg(content);
        // ??
        email.send();

        return true;
    } catch (Throwable e) {
        LOGGER.error("Send email to {} failed", StringUtils.join(",", receivers), e);
    }

    return false;
}

From source file:com.esri.geoevent.test.performance.utils.KryoUtils.java

public static <T> T fromString(String data, Class<T> type) {
    if (StringUtils.isEmpty(data))
        return null;

    Kryo kryo = setupKryo();/*w ww .java  2  s  . co  m*/
    Input input = new Input(new ByteArrayInputStream(Base64.decodeBase64(data)));
    T returnObj = kryo.readObject(input, type);
    input.close();
    return returnObj;
}

From source file:com.thruzero.common.jsf.renderer.html5.helper.TzInputTypeResponseWriter.java

public TzInputTypeResponseWriter(ResponseWriter delegate, UIComponent component, Renderer renderer,
        String defaultType) {/*ww w. j  av a  2 s.  c o  m*/
    super(delegate, renderer);

    type = (String) component.getAttributes().get("type");

    if (StringUtils.isEmpty(type) && StringUtils.isNotEmpty(defaultType)) {
        type = defaultType;
    }
}

From source file:de.thomasvolk.genexample.model.AbstractPassagierFactory.java

protected int getWertung(String inEingabe) {
    String eingabe = inEingabe.trim();
    if (StringUtils.isEmpty(eingabe)) {
        return Wertung.NULL_GEWICHTUNG;
    }//w ww. j a va2  s.  c  o  m
    try {
        return Integer.valueOf(eingabe);
    } catch (NumberFormatException e) {
        int anzahl = eingabe.length();
        return Wertung.EINFACHE_GEWICHTUNG * anzahl;
    }
}

From source file:gov.nih.nci.caintegrator.external.caarray.CaArrayServiceFactoryImpl.java

private CaArrayServer connect(ServerConnectionProfile profile) throws ConnectionException {
    CaArrayServer server = new CaArrayServer(profile.getHostname(), profile.getPort());
    try {/*from   w  ww .j  av a  2  s . c  o m*/
        if (StringUtils.isEmpty(profile.getUsername())) {
            server.connect();
        } else {
            server.connect(profile.getUsername(), profile.getPassword());
        }
    } catch (FailedLoginException e) {
        throw new ConnectionException("Login to the specified server failed", e);
    } catch (ServerConnectionException e) {
        throw new ConnectionException("Couldn't connect to the specified server", e);
    } catch (EJBException e) {
        /**
         * For some reason (possibly related to differences in java versions between caArray
         * and caIntegrator, EJBAccessExceptions are only being caught by the generic EJBException (see CAINT-1197).
         */
        throw new ConnectionException("Login to the specified server failed", e);
    }
    return server;
}