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.blockartistry.mod.ThermalRecycling.support.recipe.accessor.IC2AccessorBase.java

private static ItemStack crackRecipeInputOreDict(final Object o) {
    final RecipeInputOreDict r = (RecipeInputOreDict) o;
    final Optional<ItemStack> opt = ItemStackHelper.getItemStack(r.input, r.amount);
    return opt.isPresent() ? opt.get() : null;
}

From source file:module.organization.domain.groups.PersistentUnitGroup.java

static PersistentUnitGroup getInstance(final Unit unit, final Set<AccountabilityType> memberTypes,
        final Set<AccountabilityType> childUnitTypes) {
    Optional<PersistentUnitGroup> group = select(unit, memberTypes, childUnitTypes);
    return group.isPresent() ? group.get() : create(unit, memberTypes, childUnitTypes);
}

From source file:org.icgc.dcc.release.job.join.task.CreateSgvObservation.java

public static Optional<Collection<ObjectNode>> convertConsequences(
        Optional<? extends Iterable<SgvConsequence>> consequences) {
    if (!consequences.isPresent()) {
        return Optional.absent();
    }//from ww  w . j av  a2s  .  c  o m

    val builder = ImmutableList.<ObjectNode>builder();
    for (val consequence : consequences.get()) {
        val json = (ObjectNode) JacksonFactory.MAPPER.valueToTree(consequence);
        builder.add(trimConsequence(json));
    }

    return Optional.of(builder.build());
}

From source file:auto.http.internal.codegen.SourceFileGenerationException.java

private static String createMessage(Optional<ClassName> generatedClassName, String message) {
    return String.format("Could not generate %s: %s.",
            generatedClassName.isPresent() ? generatedClassName.get() : "unknown file", message);
}

From source file:module.organization.domain.groups.PersistentUnitGroup.java

@Atomic
private static PersistentUnitGroup create(final Unit unit, final Set<AccountabilityType> memberTypes,
        final Set<AccountabilityType> childUnitTypes) {
    Optional<PersistentUnitGroup> group = select(unit, memberTypes, childUnitTypes);
    return group.isPresent() ? group.get() : new PersistentUnitGroup(unit, memberTypes, childUnitTypes);
}

From source file:org.pshdl.model.types.builtIn.HDLGenerators.java

public static Optional<HDLInterface> getInterface(HDLDirectGeneration hdl) {
    final IHDLGenerator generator = generators.get(hdl.getGeneratorID());
    if (generator != null) {
        final Optional<HDLInterface> hif = generator.getInterface(hdl);
        if (hif.isPresent())
            return Optional.of(hif.get().copyDeepFrozen(hdl));
        return hif;
    }//from w  ww . ja v  a 2s  .c  om
    return Optional.absent();
}

From source file:com.github.kevints.mesos.scheduler.server.LibprocessServletUtils.java

static Optional<PID> getSenderPid(HttpServletRequest req) {
    Optional<String> libprocessFrom = Optional.fromNullable(req.getHeader("X-Libprocess-From"));
    if (libprocessFrom.isPresent()) {
        try {//from w ww  . j  av a2  s  .c  o m
            return Optional.of(PID.fromString(libprocessFrom.get()));
        } catch (IllegalArgumentException e) {
            return Optional.absent();
        }
    }

    Optional<String> userAgent = Optional.fromNullable(req.getHeader("User-Agent"));
    if (userAgent.isPresent()) {
        List<String> pid = Splitter.on("libprocess/").omitEmptyStrings().splitToList(userAgent.get());
        if (pid.size() != 1) {
            return Optional.absent();
        } else {
            try {
                return Optional.of(PID.fromString(pid.get(0)));
            } catch (IllegalArgumentException e) {
                return Optional.absent();
            }
        }
    }

    return Optional.absent();
}

From source file:org.opendaylight.protocol.bgp.rib.impl.CheckUtil.java

public static <R, T extends DataObject> R readData(final DataBroker dataBroker, final InstanceIdentifier<T> iid,
        final Function<T, R> function) throws ReadFailedException {
    AssertionError lastError = null;
    final Stopwatch sw = Stopwatch.createStarted();
    while (sw.elapsed(TimeUnit.SECONDS) <= TIMEOUT) {
        try (final ReadOnlyTransaction tx = dataBroker.newReadOnlyTransaction()) {
            final Optional<T> data = tx.read(LogicalDatastoreType.OPERATIONAL, iid).checkedGet();
            if (data.isPresent()) {
                try {
                    return function.apply(data.get());
                } catch (final AssertionError e) {
                    lastError = e;//from www.  j  av  a 2s.  c o  m
                    Uninterruptibles.sleepUninterruptibly(SLEEP_FOR, TimeUnit.MILLISECONDS);
                }
            }
        }
    }
    Assert.fail(lastError.getMessage());
    throw lastError;
}

From source file:org.onos.yangtools.yang.data.api.schema.tree.StoreTreeNodes.java

public static <T extends StoreTreeNode<T>> T findNodeChecked(final T tree, final YangInstanceIdentifier path) {
    T current = tree;/*  w ww .  j av a2 s .c  o  m*/

    int i = 1;
    for (PathArgument pathArg : path.getPathArguments()) {
        Optional<T> potential = current.getChild(pathArg);
        if (!potential.isPresent()) {
            throw new IllegalArgumentException(String.format("Child %s is not present in tree.",
                    Iterables.toString(Iterables.limit(path.getPathArguments(), i))));
        }
        current = potential.get();
        ++i;
    }
    return current;
}

From source file:com.atlassian.jira.rest.client.api.domain.OperationGroup.java

static <T> Optional<T> accept(final Iterable<? extends Operation> operations,
        final OperationVisitor<T> visitor) {
    for (Operation operation : operations) {
        Optional<T> result = operation.accept(visitor);
        if (result.isPresent()) {
            return result;
        }/* ww  w .  j  a va  2s .c  o m*/
    }
    return Optional.absent();
}