Example usage for java.util Collections emptyList

Introduction

In this page you can find the example usage for java.util Collections emptyList.

Prototype

@SuppressWarnings("unchecked")
public static final <T> List<T> emptyList()

Source Link

Document

Returns an empty list (immutable).

Usage

From source file:com.espertech.esper.epl.parse.ASTUtil.java

public static List<String> getIdentList(EsperEPL2GrammarParser.ColumnListContext ctx) {
    if (ctx == null || ctx.isEmpty()) {
        return Collections.emptyList();
    }/*ww  w . jav a 2  s.co  m*/
    List<TerminalNode> idents = ctx.IDENT();
    List<String> parameters = new ArrayList<String>(idents.size());
    for (TerminalNode ident : idents) {
        parameters.add(ident.getText());
    }
    return parameters;
}

From source file:com.groovycoder.BookRepository.java

public Collection<Book> findAll() {
    return Collections.emptyList();
}

From source file:com.exxonmobile.ace.hybris.storefront.controllers.util.GlobalMessages.java

public static void addMessage(final Model model, final String messageHolder, final String messageKey,
        final Object[] attributes) {
    final GlobalMessage message = new GlobalMessage();
    message.setCode(messageKey);/* w w  w . j  a va  2 s .  c o m*/
    message.setAttributes(attributes != null ? Arrays.asList(attributes) : Collections.emptyList());

    final Map<String, Object> modelMap = model.asMap();
    if (modelMap.containsKey(messageHolder)) {
        final List<GlobalMessage> messages = new ArrayList<GlobalMessage>(
                (List<GlobalMessage>) modelMap.get(messageHolder));
        messages.add(message);
        model.addAttribute(messageHolder, messages);
    } else {
        model.addAttribute(messageHolder, Collections.singletonList(message));
    }
}

From source file:com.aimluck.eip.modules.actions.project.util.ProjectTestUtil.java

public static <T> List<List<T>> devide(List<T> origin, int size) {
    if (origin == null || origin.isEmpty() || size <= 0) {
        return Collections.emptyList();
    }/* w  w w  . j  a  va  2s.  co  m*/

    int block = origin.size() / size + (origin.size() % size > 0 ? 1 : 0);

    List<List<T>> devidedList = new ArrayList<List<T>>(block);
    for (int i = 0; i < block; i++) {
        int start = i * size;
        int end = Math.min(start + size, origin.size());
        devidedList.add(new ArrayList<T>(origin.subList(start, end)));
    }
    return devidedList;
}

From source file:com.inkubator.securitycore.util.UserInfoUtil.java

public static List<String> getRoles() {
    Authentication auth = SecurityContextHolder.getContext().getAuthentication();
    List<String> listAuth;
    if (auth != null) {
        listAuth = toStringList(auth.getAuthorities());
    } else {/* w w w.j  a  va  2s  .co m*/
        listAuth = Collections.emptyList();
    }
    return listAuth;

}

From source file:de.hybris.platform.acceleratorstorefrontcommons.controllers.util.GlobalMessages.java

public static void addMessage(final Model model, final String messageHolder, final String messageKey,
        final Object[] attributes) {
    final GlobalMessage message = new GlobalMessage();
    message.setCode(messageKey);/*w  w  w  . ja  v  a  2s. co m*/
    message.setAttributes(attributes != null ? Arrays.asList(attributes) : Collections.emptyList());

    final Map<String, Object> modelMap = model.asMap();
    if (modelMap.containsKey(messageHolder)) {
        final List<GlobalMessage> messages = new ArrayList<>((List<GlobalMessage>) modelMap.get(messageHolder));
        messages.add(message);
        model.addAttribute(messageHolder, messages);
    } else {
        model.addAttribute(messageHolder, Collections.singletonList(message));
    }
}

From source file:org.obiba.mica.web.model.LocalizedStringDtos.java

Iterable<Mica.LocalizedStringDto> asDto(
        @SuppressWarnings("TypeMayBeWeakened") LocalizedString localizedString) {
    if (localizedString == null)
        return Collections.emptyList();
    return localizedString.entrySet().stream().map(entry -> Mica.LocalizedStringDto.newBuilder()
            .setLang(entry.getKey()).setValue(entry.getValue()).build()).collect(Collectors.toList());
}

From source file:Main.java

/**
 * Returns a list of {@link org.apache.http.NameValuePair NameValuePairs} as built from the
 * URI's query portion. For example, a URI of
 * http://example.org/path/to/file?a=1&b=2&c=3 would return a list of three
 * NameValuePairs, one for a=1, one for b=2, and one for c=3.
 * <p/>/* ww w.j a v  a  2  s. c  o  m*/
 * This is typically useful while parsing an HTTP PUT.
 *
 * @param uri uri to parse
 */
public static List<NameValuePair> parse(final URI uri) {
    final String query = uri.getRawQuery();
    if (!TextUtils.isEmpty(query)) {
        List<NameValuePair> result = new ArrayList<NameValuePair>();
        Scanner scanner = new Scanner(query);
        parse(result, scanner);
        return result;
    } else {
        return Collections.emptyList();
    }
}

From source file:com.varaneckas.hawkscope.util.PathUtils.java

/**
 * Converts path separated with delimiter
 * @param path/*from   w  ww .java  2  s. c o m*/
 * @param delimiter
 * @return
 */
public static List<File> pathToDirList(final String path, final String delimiter) {
    if (path == null || path.equals("")) {
        return Collections.emptyList();
    }
    String[] locations = interpret(path).split(delimiter);
    final List<File> files = new ArrayList<File>();
    for (final String location : locations) {
        final File f = new File(unsanitizePath(location));
        if (!f.isDirectory()) {
            log.warn(f.getAbsolutePath() + " is not a directory!");
        } else if (!f.canRead()) {
            log.warn(f.getAbsolutePath() + " can not be read!");
        } else {
            files.add(f);
        }
    }
    locations = null;
    return files;
}

From source file:cpcc.core.utils.RealVehicleUtils.java

/**
 * @param areaOfOperation the area of operation as a {@code String}.
 * @return the list of {@code LngLatAlt} depot positions.
 * @throws IOException in case of errors.
 *///from   w w w . j  a  v a2 s.  c om
public static List<PolarCoordinate> getDepotPositions(String areaOfOperation) throws IOException {
    if (StringUtils.isBlank(areaOfOperation)) {
        return Collections.emptyList();
    }

    List<PolarCoordinate> list = new ArrayList<>();
    FeatureCollection fc = new ObjectMapper().readValue(areaOfOperation.replace("\\n", "\n"),
            FeatureCollection.class);

    for (Feature feature : fc.getFeatures()) {
        if (!"depot".equals(feature.getProperty("type"))) {
            continue;
        }

        GeoJsonObject geom = feature.getGeometry();
        LngLatAlt coordinates = ((Point) geom).getCoordinates();
        list.add(new PolarCoordinate(coordinates.getLatitude(), coordinates.getLongitude(), 0.0));
    }

    return list;
}