Example usage for java.util.function Predicate test

Introduction

In this page you can find the example usage for java.util.function Predicate test.

Prototype

boolean test(T t);

Source Link

Document

Evaluates this predicate on the given argument.

Usage

From source file:com.meltmedia.dropwizard.etcd.json.EtcdDirectoryDao.java

/**
 * Updates the value of key, using the specified transform, if its current value matches predicate.
 * //from   w  w w.jav a  2  s .  c  om
 * @param key
 * @param precondition
 * @param transform
 * @return
 */
public Long update(String key, Predicate<T> precondition, Function<T, T> transform) {
    T currentValue = get(key);
    if (!precondition.test(currentValue)) {
        throw new EtcdDirectoryException(String.format("precondition failed while updating %s", key));
    }
    T nextValue = transform.apply(clone(currentValue));
    return put(key, nextValue, currentValue);
}

From source file:jef.tools.ArrayUtils.java

/**
 * //from   www  . j  a va2 s.com
 * 
 * @param source
 * @param filter
 * @return
 */
public static <T> List<T> filter(T[] source, Predicate<T> filter) {
    if (source == null)
        return Collections.emptyList();
    if (filter == null)
        return Arrays.asList(source);
    List<T> result = new ArrayList<T>(source.length);
    for (T t : source) {
        if (filter.test(t)) {
            result.add(t);
        }
    }
    return result;
}

From source file:org.jephyr.easyflow.instrument.AnalyzingMethodRefPredicateTest.java

@Test
public void testApplyParentPredicate() throws Exception {
    class C {/* ww w. j  a  va  2s.  c o  m*/

        void m() {
            m2();
        }

        void m2() {
        }
    }
    Predicate<MethodRef> predicate = new AnalyzingMethodRefPredicate(getBytes(C.class),
            t -> !t.getName().equals("m"));
    assertFalse(predicate.test(getMethodRef(C.class.getDeclaredMethod("m"))));
}

From source file:controller.PlayController.java

public List<Play> lambdaFilter(Predicate<Play> selector, List<Play> plays) {
    List<Play> list = plays.stream().filter(p -> selector.test(p)).collect(Collectors.toList());
    if (!list.isEmpty()) {
        return list;
    } else {/*from ww w . j  a v a 2  s. c o m*/
        return null;
    }
}

From source file:org.diorite.impl.PlayersManagerImpl.java

public void forEachExcept(final Player except, final Predicate<IPlayer> predicate,
        final Consumer<IPlayer> consumer) {
    //noinspection ObjectEquality
    this.players.values().stream().filter(p -> (p != except) && predicate.test(p)).forEach(consumer);
}

From source file:com.neatresults.mgnltweaks.app.status.ConfigStatusPresenter.java

private void filterData(NodeIterator iter, Predicate<Node> exists, Consumer<Node> total, Consumer<Node> fails)
        throws RepositoryException {
    while (iter.hasNext()) {
        Node n = iter.nextNode();
        total.accept(n);//from   w  w  w .  j  a  v a  2 s  .  co  m
        if (!exists.test(n)) {
            fails.accept(n);
        }
    }
}

From source file:org.apache.accumulo.core.conf.SiteConfiguration.java

public void getProperties(Map<String, String> props, Predicate<String> filter, boolean useDefaults) {
    if (useDefaults) {
        parent.getProperties(props, filter);
    }//from w  w w.j a  va  2  s .  c o  m
    config.keySet().forEach(k -> {
        if (filter.test(k))
            props.put(k, config.get(k));
    });
}

From source file:fr.landel.utils.commons.builder.EqualsBuilder2.java

/**
 * Append the super equals function.//from ww  w.  j  av a2  s  .c om
 * 
 * @param predicate
 *            the super predicate
 * @return the current builder
 */
public EqualsBuilder2<T> appendSuper(final Predicate<T> predicate) {
    if (this.isEqual) {
        this.builder.appendSuper(predicate.test(this.casted));
    }
    return this;
}

From source file:org.fenixedu.academic.ui.struts.action.coordinator.SearchDegreeLogAction.java

private void searchLogs(SearchDegreeLogBean bean) {
    final Predicate<DegreeLog> filter = bean.getFilters();
    final Collection<DegreeLog> validLogs = new HashSet<DegreeLog>();
    for (final DegreeLog log : bean.getDegree().getDegreeLogsSet()) {
        if (filter.test(log)) {
            validLogs.add(log);//from  w ww.  j  av  a  2 s . c om
        }
    }
    bean.setDegreeLogs(validLogs);
}

From source file:org.talend.dataprep.cache.file.FileSystemContentCache.java

private BiConsumer<Path, String> getEvictionConsumer(final Predicate<String> keyMatcher) {
    return (file, suffix) -> {
        try {//w ww  .j  a  va 2 s . co m
            if (keyMatcher.test(file.getFileName().toString())) {
                final Path evictedFile = Paths.get(file.toAbsolutePath().toString() + ".0");
                Files.move(file, evictedFile, REPLACE_EXISTING, ATOMIC_MOVE);
            }
        } catch (IOException e) {
            LOGGER.error("Unable to evict {}.", file.getFileName(), e);
        }
    };
}