Example usage for com.google.common.util.concurrent Futures immediateFuture

Introduction

In this page you can find the example usage for com.google.common.util.concurrent Futures immediateFuture.

Prototype

@CheckReturnValue
public static <V> ListenableFuture<V> immediateFuture(@Nullable V value)

Source Link

Document

Creates a ListenableFuture which has its value set immediately upon construction.

Usage

From source file:org.opendaylight.channel.util.RpcReturnUtil.java

public static <T> Future<RpcResult<T>> returnErr(String errMsg) {
    return Futures.immediateFuture(
            RpcResultBuilder.<T>failed().withError(RpcError.ErrorType.APPLICATION, errMsg).build());
}

From source file:org.opendaylight.channel.util.RpcReturnUtil.java

public static <T> Future<RpcResult<T>> returnRpcResult(T out) {
    return Futures.immediateFuture(RpcResultBuilder.<T>success(out).build());
}

From source file:org.opendaylight.coretutorials.hweventsource.sample.Util.java

public static <T> Future<RpcResult<T>> resultRpcSuccessFor(final T output) {
    final RpcResult<T> result = RpcResultBuilder.success(output).build();
    return Futures.immediateFuture(result);
}

From source file:producerstest.ResponseProducerModule.java

@Produces
static ListenableFuture<String> greeting() {
    return Futures.immediateFuture("Hello");
}

From source file:producerstest.MultibindingProducerModule.java

@Produces(type = SET)
static ListenableFuture<String> futureStr() {
    return Futures.immediateFuture("foo");
}

From source file:org.thingsboard.rule.engine.util.EntitiesCustomerIdAsyncLoader.java

public static ListenableFuture<CustomerId> findEntityIdAsync(TbContext ctx, EntityId original) {

    switch (original.getEntityType()) {
    case CUSTOMER:
        return Futures.immediateFuture((CustomerId) original);
    case USER:// w ww.  j a  va  2 s.co m
        return getCustomerAsync(ctx.getUserService().findUserByIdAsync(ctx.getTenantId(), (UserId) original));
    case ASSET:
        return getCustomerAsync(
                ctx.getAssetService().findAssetByIdAsync(ctx.getTenantId(), (AssetId) original));
    case DEVICE:
        return getCustomerAsync(
                ctx.getDeviceService().findDeviceByIdAsync(ctx.getTenantId(), (DeviceId) original));
    default:
        return Futures.immediateFailedFuture(new TbNodeException("Unexpected original EntityType " + original));
    }
}

From source file:org.thingsboard.rule.engine.util.EntitiesTenantIdAsyncLoader.java

public static ListenableFuture<TenantId> findEntityIdAsync(TbContext ctx, EntityId original) {

    switch (original.getEntityType()) {
    case TENANT://from   w ww  .  j a v a 2 s  .c o  m
        return Futures.immediateFuture((TenantId) original);
    case CUSTOMER:
        return getTenantAsync(
                ctx.getCustomerService().findCustomerByIdAsync(ctx.getTenantId(), (CustomerId) original));
    case USER:
        return getTenantAsync(ctx.getUserService().findUserByIdAsync(ctx.getTenantId(), (UserId) original));
    case ASSET:
        return getTenantAsync(ctx.getAssetService().findAssetByIdAsync(ctx.getTenantId(), (AssetId) original));
    case DEVICE:
        return getTenantAsync(
                ctx.getDeviceService().findDeviceByIdAsync(ctx.getTenantId(), (DeviceId) original));
    case ALARM:
        return getTenantAsync(ctx.getAlarmService().findAlarmByIdAsync(ctx.getTenantId(), (AlarmId) original));
    case RULE_CHAIN:
        return getTenantAsync(
                ctx.getRuleChainService().findRuleChainByIdAsync(ctx.getTenantId(), (RuleChainId) original));
    default:
        return Futures.immediateFailedFuture(new TbNodeException("Unexpected original EntityType " + original));
    }
}

From source file:org.robotninjas.concurrent.FluentFutures.java

/**
 * Create a {FluentFuture} from a static value
 *
 * @param value the value/*from   ww  w .  j a v  a 2 s . co  m*/
 * @param <Y>   the type of the value
 * @return a new completed future
 */
public static <Y> FluentFuture<Y> from(Y value) {
    return new FluentDecorator<>(Futures.immediateFuture(value));
}

From source file:com.spotify.helios.cli.command.JobStatusFetcher.java

public static Map<JobId, ListenableFuture<JobStatus>> getJobsStatuses(HeliosClient client, Set<JobId> jobIds)
        throws InterruptedException {
    final Map<JobId, ListenableFuture<JobStatus>> futures = Maps.newTreeMap();
    try {//w w w .  j a v  a  2s  .c  o m
        final Map<JobId, JobStatus> statuses = client.jobStatuses(jobIds).get();
        for (final Entry<JobId, JobStatus> entry : statuses.entrySet()) {
            futures.put(entry.getKey(), Futures.immediateFuture(entry.getValue()));
        }
    } catch (final ExecutionException e) {
        System.err.println("Warning: masters failed batch status fetching.  Falling back to"
                + " slower job status method");
        for (final JobId jobId : jobIds) {
            futures.put(jobId, client.jobStatus(jobId));
        }
    }
    return futures;
}

From source file:producerstest.multibindings.MultibindingProducerModule.java

@Produces
@IntoSet
static ListenableFuture<String> futureStr() {
    return Futures.immediateFuture("foo");
}