Example usage for com.google.common.base Strings isNullOrEmpty

Introduction

In this page you can find the example usage for com.google.common.base Strings isNullOrEmpty.

Prototype

public static boolean isNullOrEmpty(@Nullable String string)

Source Link

Document

Returns true if the given string is null or is the empty string.

Usage

From source file:io.v.android.VOptionPreferenceUtils.java

public static Optional<String> readVModule(final SharedPreferences prefs) {
    final String raw = prefs.getString(OptionDefs.LOG_VMODULE, "");
    if (Strings.isNullOrEmpty(raw)) {
        return Optional.empty();
    } else {//from  w  w w.j a v a  2 s .  c om
        return Optional.of(raw);
    }
}

From source file:uapi.codegen.ClassHelper.java

public static String makeSetterName(final String fieldName, final boolean isCollection, final boolean isMap) {
    if (Strings.isNullOrEmpty(fieldName)) {
        throw new InvalidArgumentException("The field name can't be empty or null");
    }/*  w  w  w .  ja va  2 s. c o  m*/
    String propName;
    if (fieldName.startsWith(FIELD_PREFIX)) {
        propName = fieldName.substring(1);
    } else {
        propName = fieldName;
    }
    String setterName;
    if (isCollection) {
        propName = WordHelper.singularize(propName);
        setterName = ADD_PREFIX + propName.substring(0, 1).toUpperCase()
                + propName.substring(1, propName.length());
    } else if (isMap) {
        propName = WordHelper.singularize(propName);
        setterName = PUT_PREFIX + propName.substring(0, 1).toUpperCase()
                + propName.substring(1, propName.length());
    } else {
        setterName = SETTER_PREFIX + propName.substring(0, 1).toUpperCase()
                + propName.substring(1, propName.length());
    }
    return setterName;
}

From source file:org.activityinfo.server.DeploymentEnvironment.java

public static boolean isAppEngine() {
    return !Strings.isNullOrEmpty(SystemProperty.applicationId.get());
}

From source file:com.google.util.JspUtil.java

public static String nullToEmpty(String value) {
    return Strings.isNullOrEmpty(value) ? "" : value;
}

From source file:org.rf.ide.core.execution.agent.event.LibraryImportEvent.java

public static LibraryImportEvent from(final Map<String, Object> eventMap) {
    final List<?> arguments = (List<?>) eventMap.get("library_import");
    final String libraryName = (String) arguments.get(0);
    final Map<?, ?> attributes = (Map<?, ?>) arguments.get(1);
    final String originalName = (String) attributes.get("originalname");
    final String name = Strings.isNullOrEmpty(originalName) ? libraryName : originalName;
    final URI importer = Events.toFileUri((String) attributes.get("importer"));
    final URI source = Events.toFileUri((String) attributes.get("source"));
    final List<String> args = Events.ensureListOfStrings((List<?>) attributes.get("args"));

    return new LibraryImportEvent(name, importer, source, args);
}

From source file:com.ebay.pulsar.analytics.query.sql.SimpleTableNameParser.java

public static String getTableName(String sql) {
    if (Strings.isNullOrEmpty(sql)) {
        return null;
    }/*from  w  w w. ja va2 s . c  o m*/
    Matcher matcher = SQL_PATTERN.matcher(sql);
    if (matcher.find()) {
        return matcher.group(2);
    } else {
        return null;
    }
}

From source file:com.sojw.ahnchangho.core.util.UriUtils.java

/**
 * Of.//from w  w  w .j av  a 2s  .c  om
 *
 * @param url the url
 * @param queryParameters the query parameters
 * @return the uri
 */
public static URI of(String url, Map<String, String> queryParameters) {
    if (Strings.isNullOrEmpty(url)) {
        return null;
    }

    return UriComponentsBuilder.fromHttpUrl(url).queryParams(multiValueMap(queryParameters)).build().encode()
            .toUri();
}

From source file:org.zalando.baigan.proxy.ProxyUtils.java

public static String dottify(final String text) {

    if (Strings.isNullOrEmpty(text)) {
        return NAMESPACE_SEPARATOR;
    }/*from  w ww  .j a v  a2  s . c  o m*/

    return CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_UNDERSCORE, text).replace("_", NAMESPACE_SEPARATOR);

}

From source file:org.jboss.hal.core.expression.Expression.java

public static boolean isExpression(String value) {
    return !Strings.isNullOrEmpty(value) && value.trim().length() != 0 && value.contains(EXPRESSION_START)
            && value.indexOf(EXPRESSION_END) > 1;
}

From source file:uk.gov.gds.locate.api.frontend.validation.ValidationCreateUserRequest.java

public static List<String> validateRequest(CreateUserRequest request) {
    List<String> errors = new ArrayList<String>();

    if (Strings.isNullOrEmpty(request.getAppName()) || request.getAppName().length() > MAX_LENGTH) {
        errors.add(APP_NAME_ERROR);//from   w w w  . ja v  a2  s  .  c o m
    }

    if (Strings.isNullOrEmpty(request.getName()) || request.getName().length() > MAX_LENGTH) {
        errors.add(NAME_ERROR);
    }

    if (!EmailValidator.getInstance().isValid(request.getEmail()) || !request.getEmail().endsWith(".gov.uk")
            || request.getEmail().length() > MAX_LENGTH) {
        errors.add(EMAIL_ERROR);
    }

    if (Strings.isNullOrEmpty(request.getOrganisation()) || request.getOrganisation().length() > MAX_LENGTH) {
        errors.add(ORGANISATION_ERROR);
    }

    if (Strings.isNullOrEmpty(request.getPSMA()) || request.getPSMA().length() > MAX_LENGTH) {
        errors.add(PSMA_ERROR);
    }

    return errors;
}