Example usage for java.util List isEmpty

Introduction

In this page you can find the example usage for java.util List isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this list contains no elements.

Usage

From source file:net.securnetwork.itebooks.downloader.EbookDownloader.java

private static int getLastEbookIndex() {
    try {/*from  w  ww .  j  a  v a  2 s  . c  o  m*/
        Source sourceHTML = new Source(new URL(BASE_URL));
        List<Element> allTDs = sourceHTML.getAllElements(HTMLElementName.TD);
        for (Element td : allTDs) {
            List<Element> innerH2s = td.getAllElements(HTMLElementName.H2);
            if (!innerH2s.isEmpty() && "Last Upload Ebooks".equalsIgnoreCase( //$NON-NLS-1$
                    innerH2s.get(0).getTextExtractor().toString())) {
                // Found interesting section
                List<Element> allTDElements = td.getAllElements(HTMLElementName.TD);
                Element lastEbookLink = allTDElements.get(0).getAllElements(HTMLElementName.A).get(0);
                String lastEbookRelativeHref = lastEbookLink.getAttributeValue("href"); //$NON-NLS-1$
                StringTokenizer tokenizer = new StringTokenizer(lastEbookRelativeHref, "/"); //$NON-NLS-1$
                for (int i = 1; i < tokenizer.countTokens(); i++) {
                    tokenizer.nextToken();
                }
                return Integer.parseInt(tokenizer.nextToken());
            }

        }
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return MAX_EBOOK_INDEX;
}

From source file:com.orange.ngsi.server.NgsiValidation.java

private static boolean nullOrEmpty(List e) {
    return e == null || e.isEmpty();
}

From source file:edu.uci.ics.hyracks.control.cc.partitions.PartitionMatchMaker.java

private static <T> void removeEntries(Map<PartitionId, List<T>> map, IEntryFilter<T> filter) {
    Iterator<Map.Entry<PartitionId, List<T>>> i = map.entrySet().iterator();
    while (i.hasNext()) {
        Map.Entry<PartitionId, List<T>> e = i.next();
        List<T> list = e.getValue();
        removeEntries(list, filter);/* ww w  . ja v  a  2 s .com*/
        if (list.isEmpty()) {
            i.remove();
        }
    }
}

From source file:com.liferay.apio.architect.internal.annotation.representor.processor.TypeProcessor.java

private static ParsedType _processType(Class<?> typeClass, boolean nested) {
    Type type = typeClass.getAnnotation(Type.class);

    Builder builder = new Builder(type, typeClass);

    if (!nested) {
        Method idMethod = Try.fromFallible(() -> getMethodsListWithAnnotation(typeClass, Id.class))
                .filter(methods -> !methods.isEmpty()).map(methods -> methods.get(0)).orElse(null);

        builder.idMethod(idMethod);/* ww  w .  ja v  a  2  s  . c o  m*/
    }

    List<Method> methods = getMethodsListWithAnnotation(typeClass, Field.class);

    methods.forEach(method -> _processMethod(builder, method));

    return builder.build();
}

From source file:com.yahoo.sql4d.sql4ddriver.Util.java

public static <T extends DruidBaseBean> void printTable(List<T> baseAllRows) {
    if (baseAllRows == null || baseAllRows.isEmpty()) {
        return;/*from  w w  w .  j av a  2s. co m*/
    }
    List<Method> setters = getAllSetters(baseAllRows.get(0).getClass());
    for (Method setter : setters) {
        printf("%-10s  |", setter.getName().substring(3));
    }
    newLine();
    List<Method> getters = getAllGetters(baseAllRows.get(0).getClass());
    for (T row : baseAllRows) {
        for (Method getter : getters) {
            try {
                printf("%-10s  |", getter.invoke(row));
            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
                Logger.getLogger(Util.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        newLine();
    }
}

From source file:com.google.openrtb.json.OpenRtbJsonUtils.java

/**
 * Writes a long array if not empty, using quotes for values that are too big.
 *
 * @see #writeLong(long, JsonGenerator)/*from   w  ww.  j a  v a 2  s.  c om*/
 */
public static void writeLongs(String fieldName, List<Long> data, JsonGenerator gen) throws IOException {
    if (!data.isEmpty()) {
        gen.writeArrayFieldStart(fieldName);
        for (long d : data) {
            writeLong(d, gen);
        }
        gen.writeEndArray();
    }
}

From source file:com.mxep.web.common.persistence.DynamicSpecifications.java

public static <T> Specification<T> bySearchFilter(final Collection<SearchFilter> filters,
        final Class<T> entityClazz) {
    return new Specification<T>() {
        @Override/*from w  w  w  .ja v a2 s  . c o  m*/
        public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder builder) {
            if (Collections3.isNotEmpty(filters)) {
                List<Predicate> predicates = getPredicate(filters, root, query, builder);
                // ? and ???
                if (!predicates.isEmpty()) {
                    return builder.and(predicates.toArray(new Predicate[predicates.size()]));
                }
            }
            return builder.conjunction();
        }
    };
}

From source file:com.netflix.spinnaker.halyard.cli.ui.v1.AnsiFormatUtils.java

public static String format(Provider provider) {
    AnsiStoryBuilder resultBuilder = new AnsiStoryBuilder();
    AnsiParagraphBuilder paragraph = resultBuilder.addParagraph();

    paragraph.addSnippet(provider.getNodeName().toUpperCase()).addStyle(AnsiStyle.BOLD);
    paragraph.addSnippet(" provider");

    resultBuilder.addNewline();/*  ww  w . java 2 s  . co m*/

    paragraph = resultBuilder.addParagraph();

    paragraph.addSnippet("enabled: " + provider.isEnabled());

    paragraph = resultBuilder.addParagraph();
    paragraph.addSnippet("accounts: ");

    List<Account> accounts = provider.getAccounts();
    if (accounts == null || accounts.isEmpty()) {
        paragraph.addSnippet("[]");
    } else {
        accounts.forEach(account -> {
            AnsiParagraphBuilder list = resultBuilder.addParagraph().setIndentFirstLine(true).setIndentWidth(1);
            list.addSnippet("- ");
            list.addSnippet(account.getName());
        });
    }

    return resultBuilder.toString();
}

From source file:com.google.openrtb.json.OpenRtbJsonUtils.java

/**
 * Writes a string array if not empty./*from   ww  w . ja  v a  2s  .  c o m*/
 */
public static void writeStrings(String fieldName, List<String> data, JsonGenerator gen) throws IOException {
    if (!data.isEmpty()) {
        gen.writeArrayFieldStart(fieldName);
        for (String d : data) {
            gen.writeString(d);
        }
        gen.writeEndArray();
    }
}