Example usage for com.google.common.base Optional isPresent

Introduction

In this page you can find the example usage for com.google.common.base Optional isPresent.

Prototype

public abstract boolean isPresent();

Source Link

Document

Returns true if this holder contains a (non-null) instance.

Usage

From source file:org.opendaylight.netvirt.openstack.netvirt.NetvirtProvider.java

public static boolean isMasterElected() {
    if (entityOwnershipService != null) {
        Optional<EntityOwnershipState> state = entityOwnershipService.getOwnershipState(ownerInstanceEntity);
        return state.isPresent() && state.get().hasOwner();
    }//  w w w  .ja va 2  s . com
    return false;
}

From source file:org.opendaylight.controller.config.threadpool.util.FlexibleThreadPoolWrapper.java

/**
 * Overriding the queue:/* w ww. j  a  v  a  2s .  c  o m*/
 * ThreadPoolExecutor would not create new threads if the queue is not full, thus adding
 * occurs in RejectedExecutionHandler.
 * This impl saturates threadpool first, then queue. When both are full caller will get blocked.
 */
private static ForwardingBlockingQueue getQueue(Optional<Integer> capacity) {
    final BlockingQueue<Runnable> delegate = capacity.isPresent()
            ? new LinkedBlockingQueue<Runnable>(capacity.get())
            : new LinkedBlockingQueue<Runnable>();
    return new ForwardingBlockingQueue(delegate);
}

From source file:org.sonar.server.computation.measure.BatchMeasureToMeasure.java

private static Optional<Measure> toLevelMeasure(Measure.NewMeasureBuilder builder,
        BatchReport.Measure batchMeasure) {
    if (!batchMeasure.hasStringValue()) {
        return toNoValueMeasure(builder, batchMeasure);
    }/*from   w  w  w .j a v a 2s .c  o  m*/
    Optional<Measure.Level> level = Measure.Level.toLevel(batchMeasure.getStringValue());
    if (!level.isPresent()) {
        return toNoValueMeasure(builder, batchMeasure);
    }
    return of(builder.create(level.get()));
}

From source file:org.opennms.newts.rest.Transform.java

private static Map<String, String> unwrapMap(Optional<Map<String, String>> wrapped) {
    if (!wrapped.isPresent())
        return Collections.<String, String>emptyMap();
    return wrapped.get();
}

From source file:com.vmware.photon.controller.apife.utils.PaginationUtils.java

/**
 * Determine the page size to be used.//from   w w w .j a v a 2  s  .  c  om
 *
 * 1. If origPageSize is empty, then the one defined in paginationConfig is to be used.
 * 2. If origPageSize is larger than the maxPageSize defined in paginationConfig, throw exception.
 *
 * @param paginationConfig
 * @param origPageSize
 * @return
 */
public static Optional<Integer> determinePageSize(PaginationConfig paginationConfig,
        Optional<Integer> origPageSize) throws InvalidPageSizeException {

    if (!origPageSize.isPresent()) {
        return Optional.of(paginationConfig.getDefaultPageSize());
    } else if (origPageSize.get() < 1 || origPageSize.get() > paginationConfig.getMaxPageSize()) {
        throw new InvalidPageSizeException(origPageSize.get(), 1, paginationConfig.getMaxPageSize());
    } else {
        return origPageSize;
    }
}

From source file:utils.PasswordManager.java

private static Optional<BasicTextEncryptor> getEncryptor(Optional<String> masterPassword) {
    Optional<BasicTextEncryptor> encryptor;
    if (masterPassword.isPresent()) {
        encryptor = Optional.of(new BasicTextEncryptor());
        try {/* w w  w . j av  a2s.  c o  m*/
            encryptor.get().setPassword(masterPassword.get());
        } catch (Exception e) {
            LOG.error("Failed to set master password for encryptor", e);
            encryptor = Optional.absent();
        }
    } else {
        encryptor = Optional.absent();
    }

    return encryptor;
}

From source file:org.xacml4j.v30.policy.function.AttributeDesignatorFunctions.java

private static AttributeExpType getType(AnyURIExp typeUri) {
    AttributeExpType typeId = (AttributeExpType) typeUri.getEvaluatesTo();
    Optional<AttributeExpType> resolvedType = XacmlTypes.getType(typeUri.getValue().toString());
    if (!resolvedType.isPresent()) {
        throw new XacmlSyntaxException("Unknown XACML type id=\"%s\"", typeId);
    }//  w  w w .  j ava 2  s.c o  m
    return resolvedType.get();
}

From source file:com.google.testing.junit.runner.model.AntXmlResultWriter.java

private static String getFormattedTimestamp(Optional<Interval> runTimeInterval) {
    return !runTimeInterval.isPresent() ? "" : runTimeInterval.get().getStart().toString();
}

From source file:com.google.testing.junit.runner.model.AntXmlResultWriter.java

private static String getFormattedRunTime(Optional<Interval> runTimeInterval) {
    return !runTimeInterval.isPresent() ? "0.0"
            : String.valueOf(runTimeInterval.get().toDurationMillis() / 1000.0D);
}

From source file:org.opendaylight.yangtools.yang.data.impl.schema.tree.AbstractDataTreeCandidateNode.java

static DataTreeCandidateNode deltaChild(
        final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> oldData,
        final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> newData,
        final PathArgument identifier) {

    final Optional<NormalizedNode<?, ?>> maybeNewChild = getChild(newData, identifier);
    final Optional<NormalizedNode<?, ?>> maybeOldChild = getChild(oldData, identifier);
    if (maybeOldChild.isPresent()) {
        final NormalizedNode<?, ?> oldChild = maybeOldChild.get();
        if (maybeNewChild.isPresent()) {
            return AbstractRecursiveCandidateNode.replaceNode(oldChild, maybeNewChild.get());
        }/* ww  w .j  av  a  2  s  .c o m*/
        return AbstractRecursiveCandidateNode.deleteNode(oldChild);
    }

    return maybeNewChild.isPresent() ? AbstractRecursiveCandidateNode.writeNode(maybeNewChild.get()) : null;
}