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.vmware.photon.controller.common.dcp.ServiceHostUtils.java

/**
 * Generic wait function.//from  w w  w.  j  a  v a2  s  . c o m
 */
public static <T> T waitForState(Supplier<T> supplier, Predicate<T> predicate, long waitIterationSleep,
        long waitIterationCount, Runnable cleanup) throws Throwable {
    for (int i = 0; i < waitIterationCount; i++) {
        T t = supplier.get();
        if (predicate.test(t)) {
            return t;
        }
        Thread.sleep(waitIterationSleep);
    }

    if (cleanup != null) {
        cleanup.run();
    }
    throw new TimeoutException("timeout waiting for state transition.");
}

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From source file:org.briljantframework.data.vector.Vectors.java

/**
 * Finds the index of the first value for which {@code predicate} returns true.
 *
 * @param vector the vector/* w  w  w .  j  av  a2 s .  c o  m*/
 * @param predicate the predicate
 * @return the index or {@code -1} if no value matched the predicate {@code true}
 */
public static <T> int find(Class<T> cls, Vector vector, Predicate<T> predicate) {
    for (int i = 0; i < vector.size(); i++) {
        if (predicate.test(vector.loc().get(cls, i))) {
            return i;
        }
    }
    return -1;
}

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From source file:com.vmware.photon.controller.common.dcp.ServiceHostUtils.java

/**
 * Wait for a query to returns particular information.
 */// w ww .java  2s  .  c  o  m
public static QueryTask waitForQuery(ServiceHost host, String referrer, QueryTask query,
        Predicate<QueryTask> predicate, long waitIterationCount, long waitIterationSleep) throws Throwable {
    for (int i = 0; i < waitIterationCount; i++) {
        QueryTask result = sendQueryAndWait(host, referrer, query);
        if (predicate.test(result)) {
            return result;
        }
        Thread.sleep(waitIterationSleep);
    }
    throw new RuntimeException("timeout waiting for query result.");
}

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From source file:cn.lambdalib.util.mc.Raytrace.java

public static MovingObjectPosition rayTraceEntities(World world, Vec3 vec1, Vec3 vec2,
        Predicate<Entity> selector) {
    Entity entity = null;//from   w  w w  .ja v  a 2s.  c o m
    AxisAlignedBB boundingBox = WorldUtils.getBoundingBox(vec1, vec2);
    List list = world.getEntitiesWithinAABBExcludingEntity(null, boundingBox.expand(1.0D, 1.0D, 1.0D),
            EntitySelectors.toEntitySelector(selector));
    double d0 = 0.0D;

    for (int j = 0; j < list.size(); ++j) {
        Entity entity1 = (Entity) list.get(j);

        if (!entity1.canBeCollidedWith() || (selector != null && !selector.test(entity1)))
            continue;

        float f = 0.3F;
        AxisAlignedBB axisalignedbb = entity1.boundingBox.expand(f, f, f);
        MovingObjectPosition movingobjectposition1 = axisalignedbb.calculateIntercept(vec1, vec2);

        if (movingobjectposition1 != null) {
            double d1 = vec1.distanceTo(movingobjectposition1.hitVec);

            if (d1 < d0 || d0 == 0.0D) {
                entity = entity1;
                d0 = d1;
            }
        }
    }

    if (entity != null) {
        return new MovingObjectPosition(entity);
    }
    return null;
}

---

From source file:fr.landel.utils.commons.ObjectUtils.java

/**
 * Returns a default value if the object doesn't match the predicate.
 * /*from w  ww  .jav  a2 s.c  o  m*/
 * <pre>
 * ObjectUtils.defaultIf(Objects::nonNull, null, null)          = null
 * ObjectUtils.defaultIf(Objects::nonNull, null, "")            = ""
 * ObjectUtils.defaultIf(Objects::nonNull, null, "zz")          = "zz"
 * ObjectUtils.defaultIf(Objects::nonNull, "abc", *)            = "abc"
 * ObjectUtils.defaultIf(Objects::nonNull, Boolean.TRUE, *)     = Boolean.TRUE
 * </pre>
 * 
 * @param predicate
 *            the predicate (cannot be {@code null})
 * @param object
 *            the {@code Object} to test, may be {@code null}
 * @param defaultValue
 *            the default value, may be {@code null}
 * @param <T>
 *            the type of the object
 * @return {@code object} if it matches the predicate, defaultValue
 *         otherwise
 * @throws NullPointerException
 *             if {@code predicate} is {@code null}
 */
public static <T> T defaultIf(final Predicate<T> predicate, final T object, final T defaultValue) {
    Objects.requireNonNull(predicate, PREDICATE_ERROR);

    return predicate.test(object) ? object : defaultValue;
}

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From source file:org.jsweet.input.typescriptdef.TypescriptDef2Java.java

private static void addTsDefFiles(File input, ArrayList<File> files, Predicate<File> libFilter) {
    if (input.isDirectory()) {
        File[] subFiles = input.listFiles();
        if (subFiles != null) {
            for (File file : subFiles) {
                addTsDefFiles(file, files, libFilter);
            }//from   w w w. ja  v  a 2s .  c  om
        }
    } else {
        if (input.getName().endsWith(".d.ts") && !input.getPath().contains("legacy") && libFilter.test(input)) {
            files.add(input);
        }
    }
}

---

From source file:password.pwm.util.java.JavaHelper.java

public static long copyWhilePredicate(final InputStream input, final OutputStream output,
        final Predicate predicate) throws IOException {
    final int bufferSize = 4 * 1024;
    final byte[] buffer = new byte[bufferSize];
    long bytesCopied;
    long totalCopied = 0;
    do {//from   ww  w  .  j  av  a2  s  . c  o  m
        bytesCopied = IOUtils.copyLarge(input, output, 0, bufferSize, buffer);
        if (bytesCopied > 0) {
            totalCopied += bytesCopied;
        }
        if (!predicate.test(null)) {
            return totalCopied;
        }
    } while (bytesCopied > 0);
    return totalCopied;
}

---

From source file:org.jbpm.workbench.ht.client.editors.taskslist.AbstractTaskListPresenterTest.java

protected static void testTaskStatusCondition(Predicate<TaskSummary> predicate, String... validStatutes) {
    List<String> allStatus = TaskUtils.getStatusByType(TaskType.ALL);
    final List<String> validStatuses = Arrays.asList(validStatutes);
    allStatus.removeAll(validStatuses);//from   w  w  w  . j a  v  a2 s.c  o  m

    allStatus.forEach(s -> assertFalse(predicate.test(TaskSummary.builder().status(s).build())));
    validStatuses.forEach(s -> assertTrue(predicate.test(TaskSummary.builder().status(s).build())));
}

---

From source file:alfio.util.EventUtil.java

public static boolean checkWaitingQueuePreconditions(Event event, List<SaleableTicketCategory> categories,
        ConfigurationManager configurationManager, Predicate<Event> noTicketsAvailable) {
    return findLastCategory(categories).map(lastCategory -> {
        ZonedDateTime now = ZonedDateTime.now(event.getZoneId());
        if (isPreSales(event, categories)) {
            return configurationManager.getBooleanConfigValue(
                    Configuration.from(event.getOrganizationId(), event.getId(), ENABLE_PRE_REGISTRATION),
                    false);//  w w w.ja  v  a  2  s. co m
        } else if (configurationManager.getBooleanConfigValue(
                Configuration.from(event.getOrganizationId(), event.getId(), ENABLE_WAITING_QUEUE), false)) {
            return now.isBefore(lastCategory.getZonedExpiration()) && noTicketsAvailable.test(event);
        }
        return false;
    }).orElse(false);
}

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From source file:fr.landel.utils.assertor.utils.AssertorIterable.java

private static <I extends Iterable<T>, T> boolean has(final I iterable, final Predicate<T> predicate,
        final boolean all, final EnumAnalysisMode analysisMode) {
    if (EnumAnalysisMode.STANDARD.equals(analysisMode)) {
        if (all) {
            for (final T object : iterable) {
                if (!predicate.test(object)) {
                    return false;
                }/*from   ww  w .j  a v  a2s.com*/
            }
            return true;
        } else {
            for (final T object : iterable) {
                if (predicate.test(object)) {
                    return true;
                }
            }
            return false;
        }
    } else {
        final Stream<T> stream = StreamSupport.stream(iterable.spliterator(),
                EnumAnalysisMode.PARALLEL.equals(analysisMode));
        if (all) {
            return stream.allMatch(predicate);
        } else {
            return stream.anyMatch(predicate);
        }
    }
}

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