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

Introduction

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

Prototype

public static <I, O> ListenableFuture<O> transform(ListenableFuture<I> input,
        Function<? super I, ? extends O> function, Executor executor) 

Source Link

Document

Returns a new ListenableFuture whose result is the product of applying the given Function to the result of the given Future .

Usage

From source file:org.opendaylight.groupbasedpolicy.endpoint.AbstractEndpointRegistry.java

@Override
public Future<RpcResult<Void>> registerEndpoint(RegisterEndpointInput input) {
    long timestamp = System.currentTimeMillis();

    WriteTransaction t = dataProvider.newWriteOnlyTransaction();

    if (input.getL2Context() != null && input.getMacAddress() != null) {
        Endpoint ep = buildEndpoint(input).setTimestamp(timestamp).build();

        EndpointKey key = new EndpointKey(ep.getL2Context(), ep.getMacAddress());
        InstanceIdentifier<Endpoint> iid = InstanceIdentifier.builder(Endpoints.class)
                .child(Endpoint.class, key).build();
        t.put(LogicalDatastoreType.OPERATIONAL, iid, ep);
    }//from   w w  w  .  ja  v a 2  s  .  c om
    if (input.getL3Address() != null) {
        for (L3Address l3addr : input.getL3Address()) {
            EndpointL3Key key3 = new EndpointL3Key(l3addr.getIpAddress(), l3addr.getL3Context());
            EndpointL3 ep3 = buildEndpointL3(input).setIpAddress(key3.getIpAddress())
                    .setL3Context(key3.getL3Context()).setTimestamp(timestamp).build();
            InstanceIdentifier<EndpointL3> iid_l3 = InstanceIdentifier.builder(Endpoints.class)
                    .child(EndpointL3.class, key3).build();
            t.put(LogicalDatastoreType.OPERATIONAL, iid_l3, ep3);
        }
    }
    ListenableFuture<Void> r = t.submit();
    return Futures.transform(r, futureTrans, executor);
}

---

From source file:org.opendaylight.faas.fabric.general.EndPointRegister.java

@Override
public Future<RpcResult<Void>> locateEndpoint(LocateEndpointInput input) {

    final RpcResult<Void> result = RpcResultBuilder.<Void>success().build();

    if (input == null) {
        return Futures.immediateFailedCheckedFuture(new IllegalArgumentException("endpoint can not be empty!"));
    }/*from www. j a v a 2  s.co m*/
    final Uuid epId = input.getEndpointId();

    if (epId == null) {
        return Futures.immediateFailedCheckedFuture(new IllegalArgumentException("endpoint can not be empty!"));
    }
    final FabricId fabricid = input.getFabricId();
    final FabricInstance fabricObj = FabricInstanceCache.INSTANCE.retrieveFabric(fabricid);
    if (fabricObj == null) {
        return Futures.immediateFailedFuture(new IllegalArgumentException("fabric is not exist!"));
    }

    ReadWriteTransaction trans = dataBroker.newReadWriteTransaction();

    EndpointBuilder epBuilder = new EndpointBuilder();
    LocationBuilder locBuilder = new LocationBuilder(input.getLocation());
    epBuilder.setEndpointUuid(epId);
    epBuilder.setLocation(locBuilder.build());

    final InstanceIdentifier<Endpoint> eppath = Constants.DOM_ENDPOINTS_PATH.child(Endpoint.class,
            new EndpointKey(epId));
    trans.merge(LogicalDatastoreType.OPERATIONAL, eppath, epBuilder.build());

    CheckedFuture<Void, TransactionCommitFailedException> future = trans.submit();

    return Futures.transform(future, new AsyncFunction<Void, RpcResult<Void>>() {

        @Override
        public ListenableFuture<RpcResult<Void>> apply(Void input) throws Exception {
            return Futures.immediateFuture(result);
        }
    }, executor);
}

---

From source file:org.jclouds.atmos.internal.StubAtmosAsyncClient.java

@Override
public ListenableFuture<AtmosObject> headFile(String path) {
    String container = path.substring(0, path.indexOf('/'));
    path = path.substring(path.indexOf('/') + 1);
    try {/*from  w w w .j  a v  a2  s . c  om*/
        return Futures.transform(blobStore.getBlob(container, path), blob2Object, userExecutor);
    } catch (Exception e) {
        return immediateFailedFuture(Throwables.getRootCause(e));
    }
}

---

From source file:org.jclouds.openstack.nova.v2_0.compute.strategy.ApplyNovaTemplateOptionsCreateNodesWithGroupEncodedIntoNameThenAddToSet.java

@Override
protected ListenableFuture<AtomicReference<NodeMetadata>> createNodeInGroupWithNameAndTemplate(String group,
        final String name, Template template) {

    ListenableFuture<AtomicReference<NodeMetadata>> future = super.createNodeInGroupWithNameAndTemplate(group,
            name, template);//from   ww w  .j  a v a 2s .c  om
    NovaTemplateOptions templateOptions = NovaTemplateOptions.class.cast(template.getOptions());

    if (templateOptions.shouldAutoAssignFloatingIp()) {
        return Futures.transform(future, createAndAddFloatingIpToNode, userExecutor);
    } else {
        return future;
    }
}

---

From source file:io.prestosql.plugin.hive.HivePageSink.java

private ListenableFuture<Collection<Slice>> doFinish() {
    ImmutableList.Builder<Slice> partitionUpdates = ImmutableList.builder();
    List<Callable<Object>> verificationTasks = new ArrayList<>();
    for (HiveWriter writer : writers) {
        writer.commit();/* www . ja  va 2s  . c o  m*/
        PartitionUpdate partitionUpdate = writer.getPartitionUpdate();
        partitionUpdates.add(wrappedBuffer(partitionUpdateCodec.toJsonBytes(partitionUpdate)));
        writer.getVerificationTask().map(Executors::callable).ifPresent(verificationTasks::add);
    }
    List<Slice> result = partitionUpdates.build();

    writtenBytes = writers.stream().mapToLong(HiveWriter::getWrittenBytes).sum();
    validationCpuNanos = writers.stream().mapToLong(HiveWriter::getValidationCpuNanos).sum();

    if (verificationTasks.isEmpty()) {
        return Futures.immediateFuture(result);
    }

    try {
        List<ListenableFuture<?>> futures = writeVerificationExecutor.invokeAll(verificationTasks).stream()
                .map(future -> (ListenableFuture<?>) future).collect(toList());
        return Futures.transform(Futures.allAsList(futures), input -> result, directExecutor());
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new RuntimeException(e);
    }
}

---

From source file:org.jclouds.atmos.internal.StubAtmosAsyncClient.java

@Override
public ListenableFuture<BoundedSet<? extends DirectoryEntry>> listDirectories(ListOptions... optionsList) {
    // org.jclouds.blobstore.options.ListOptions options = container2ContainerListOptions
    // .apply(optionsList);
    return Futures.transform(blobStore.list(), resource2ObjectList, userExecutor);
}

---

From source file:com.facebook.presto.server.protocol.StatementResource.java

private void asyncQueryResults(Query query, OptionalLong token, Duration maxWait, DataSize targetResultSize,
        UriInfo uriInfo, String scheme, AsyncResponse asyncResponse) {
    Duration wait = WAIT_ORDERING.min(MAX_WAIT_TIME, maxWait);
    if (targetResultSize == null) {
        targetResultSize = DEFAULT_TARGET_RESULT_SIZE;
    } else {/*  w  w  w . ja v  a  2  s .  com*/
        targetResultSize = Ordering.natural().min(targetResultSize, MAX_TARGET_RESULT_SIZE);
    }
    ListenableFuture<QueryResults> queryResultsFuture = query.waitForResults(token, uriInfo, scheme, wait,
            targetResultSize);

    ListenableFuture<Response> response = Futures.transform(queryResultsFuture,
            queryResults -> toResponse(query, queryResults), directExecutor());

    bindAsyncResponse(asyncResponse, response, responseExecutor);
}

---

From source file:org.glowroot.central.util.Session.java

public ListenableFuture<ResultSet> readAsyncWarnIfNoRows(Statement statement, String warningMessage,
        Object... warningArguments) throws Exception {
    return Futures.transform(readAsync(statement), new Function<ResultSet, ResultSet>() {
        @Override//from   w  ww  .j a v a2 s.com
        public ResultSet apply(ResultSet results) {
            if (results.isExhausted()) {
                logger.warn(warningMessage, warningArguments);
            }
            return results;
        }
    }, MoreExecutors.directExecutor());
}

---

From source file:org.thingsboard.server.dao.timeseries.CassandraBaseTimeseriesDao.java

private ListenableFuture<List<Long>> getPartitionsFuture(TenantId tenantId, ReadTsKvQuery query,
        EntityId entityId, long minPartition, long maxPartition) {
    if (isFixedPartitioning()) { //no need to fetch partitions from DB
        return Futures.immediateFuture(FIXED_PARTITION);
    }/*from  w w  w. j a  v a  2s .co m*/
    ResultSetFuture partitionsFuture = fetchPartitions(tenantId, entityId, query.getKey(), minPartition,
            maxPartition);
    return Futures.transform(partitionsFuture, getPartitionsArrayFunction(), readResultsProcessingExecutor);
}

---

From source file:org.opendaylight.groupbasedpolicy.endpoint.AbstractEndpointRegistry.java

@Override
public Future<RpcResult<Void>> unregisterEndpoint(UnregisterEndpointInput input) {
    WriteTransaction t = dataProvider.newWriteOnlyTransaction();
    if (input.getL2() != null) {
        for (L2 l2a : input.getL2()) {
            EndpointKey key = new EndpointKey(l2a.getL2Context(), l2a.getMacAddress());
            InstanceIdentifier<Endpoint> iid = InstanceIdentifier.builder(Endpoints.class)
                    .child(Endpoint.class, key).build();
            t.delete(LogicalDatastoreType.OPERATIONAL, iid);
        }/*from  w  w w .  jav a2 s. co  m*/
    }
    if (input.getL3() != null) {
        for (L3 l3addr : input.getL3()) {
            EndpointL3Key key3 = new EndpointL3Key(l3addr.getIpAddress(), l3addr.getL3Context());
            InstanceIdentifier<EndpointL3> iid_l3 = InstanceIdentifier.builder(Endpoints.class)
                    .child(EndpointL3.class, key3).build();
            t.delete(LogicalDatastoreType.OPERATIONAL, iid_l3);
        }
    }

    ListenableFuture<Void> r = t.submit();
    return Futures.transform(r, futureTrans, executor);
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• »