Example usage for com.google.common.util.concurrent SettableFuture create

Introduction

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

Prototype

public static <V> SettableFuture<V> create() 

Source Link

Document

Creates a new SettableFuture that can be completed or cancelled by a later method call.

Usage

From source file:com.groupon.mesos.executor.ExecutorDriverContext.java

synchronized ListenableFuture<Status> waitForStateChange(final Status expectedStatus) {
    final SettableFuture<Status> future = SettableFuture.create();
    if (!isStateMachine(expectedStatus)) {
        // Current status is not the expected status. Return
        // it immediately.
        future.set(stateMachine.get());// ww w.j ava 2  s.  c  o m
    } else {
        // Current status is expected status: Queue up for a status change.
        stateMachineFutures.add(future);
    }
    return future;
}

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From source file:io.grpc.cronet.CronetClientTransport.java

@Override
public ListenableFuture<TransportStats> getStats() {
    SettableFuture<TransportStats> f = SettableFuture.create();
    f.set(null);
    return f;
}

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From source file:com.microsoft.office365.starter.helpers.AuthenticationController.java

/**
 * Description: Calls AuthenticationContext.acquireToken(...) once to initialize with
 * user's credentials and avoid interactive prompt on later calls.
 * If all tokens expire, app must call initialize() again to prompt user interactively and
 * set up authentication context./*  w w w  .  ja v a 2 s. c o  m*/
 *
 * @return A signal to wait on before continuing execution.
 */
public SettableFuture<Boolean> initialize() {

    final SettableFuture<Boolean> result = SettableFuture.create();

    if (verifyAuthenticationContext()) {
        getAuthenticationContext().acquireToken(this.contextActivity, this.resourceId, Constants.CLIENT_ID,
                Constants.REDIRECT_URI, PromptBehavior.Auto,
                new AuthenticationCallback<AuthenticationResult>() {

                    @Override
                    public void onSuccess(final AuthenticationResult authenticationResult) {

                        if (authenticationResult != null
                                && authenticationResult.getStatus() == AuthenticationStatus.Succeeded) {
                            dependencyResolver = new ADALDependencyResolver(getAuthenticationContext(),
                                    resourceId, Constants.CLIENT_ID);
                            storeUserId(contextActivity, authenticationResult);
                            result.set(true);
                        }
                    }

                    @Override
                    public void onError(Exception t) {
                        result.setException(t);
                    }

                    private void storeUserId(final Activity rootActivity,
                            final AuthenticationResult authenticationResult) {

                        UserInfo userInfo = authenticationResult.getUserInfo();
                        SharedPreferences sharedPref = rootActivity.getPreferences(Context.MODE_PRIVATE);

                        if (userInfo != null) {
                            mLoggedInUser = userInfo.getUserId();
                            Editor editor = sharedPref.edit();
                            editor.putString("UserId", mLoggedInUser);
                            editor.putString("DisplayName",
                                    userInfo.getGivenName() + " " + userInfo.getFamilyName());
                            editor.apply();
                        } else {
                            mLoggedInUser = sharedPref.getString("UserId", "");
                        }
                    }
                });
    } else {
        result.setException(new Throwable("Auth context verification failed. Did you set a context activity?"));
    }
    return result;
}

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From source file:org.opendaylight.netvirt.vpnmanager.VpnRpcServiceImpl.java

/**
 * Generate label for the given ip prefix from the associated VPN.
 *//*  www .  j  a va2 s .  c om*/
@Override
public Future<RpcResult<GenerateVpnLabelOutput>> generateVpnLabel(GenerateVpnLabelInput input) {
    String vpnName = input.getVpnName();
    String ipPrefix = input.getIpPrefix();
    SettableFuture<RpcResult<GenerateVpnLabelOutput>> futureResult = SettableFuture.create();
    String rd = VpnUtil.getVpnRd(dataBroker, vpnName);
    long label = VpnUtil.getUniqueId(idManager, VpnConstants.VPN_IDPOOL_NAME,
            VpnUtil.getNextHopLabelKey((rd != null) ? rd : vpnName, ipPrefix));
    if (label == 0) {
        String msg = "Could not retrieve the label for prefix " + ipPrefix + " in VPN " + vpnName;
        LOG.error(msg);
        futureResult.set(RpcResultBuilder.<GenerateVpnLabelOutput>failed().withError(ErrorType.APPLICATION, msg)
                .build());
    } else {
        GenerateVpnLabelOutput output = new GenerateVpnLabelOutputBuilder().setLabel(label).build();
        futureResult.set(RpcResultBuilder.success(output).build());
    }
    return futureResult;
}

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From source file:com.navercorp.nbasearc.gcp.GatewayConnectionPool.java

private SettableFuture<?> closeVirtualConnections() {
    final SettableFuture<?> future = SettableFuture.create();

    if (vcConcurrentSet.isEmpty()) {
        future.set(null);/*w ww. j a v a  2  s . c  o  m*/
    } else {
        for (VirtualConnection vc : vcConcurrentSet) {
            vc.close().addListener(new Runnable() {
                @Override
                public void run() {
                    if (vcConcurrentSet.isEmpty()) {
                        future.set(null);
                    }
                }
            }, MoreExecutors.directExecutor());
        }
    }

    return future;
}

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From source file:org.apache.bookkeeper.bookie.LedgerDescriptorImpl.java

synchronized SettableFuture<Boolean> fenceAndLogInJournal(Journal journal) throws IOException {
    boolean success = this.setFenced();
    if (success) {
        // fenced for first time, we should add the key to journal ensure we can rebuild.
        return logFenceEntryInJournal(journal);
    } else {// w  w w.  j  av  a 2  s .  c  o m
        // If we reach here, it means the fence state in FileInfo has been set (may not be persisted yet).
        // However, writing the fence log entry to the journal might still be in progress. This can happen
        // when a bookie receives two fence requests almost at the same time. The subsequent logic is used
        // to check the fencing progress.
        if (logFenceResult == null || fenceEntryPersisted.get()) {
            // Either ledger's fenced state is recovered from Journal
            // Or Log fence entry in Journal succeed
            SettableFuture<Boolean> result = SettableFuture.create();
            result.set(true);
            return result;
        } else if (logFenceResult.isDone()) {
            // We failed to log fence entry in Journal, try again.
            return logFenceEntryInJournal(journal);
        }
        // Fencing is in progress
        return logFenceResult;
    }
}

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From source file:io.crate.executor.task.LocalMergeTask.java

/**
 *
 * @param implementationSymbolVisitor symbol visitor (on cluster level)
 *///  ww  w. ja v  a2  s.  com
public LocalMergeTask(ThreadPool threadPool, ClusterService clusterService, Settings settings,
        TransportActionProvider transportActionProvider,
        ImplementationSymbolVisitor implementationSymbolVisitor, MergeNode mergeNode, StatsTables statsTables,
        CircuitBreaker circuitBreaker) {
    this.threadPool = threadPool;
    this.clusterService = clusterService;
    this.settings = settings;
    this.transportActionProvider = transportActionProvider;
    this.symbolVisitor = implementationSymbolVisitor;
    this.mergeNode = mergeNode;
    this.statsTables = statsTables;
    this.circuitBreaker = circuitBreaker;
    this.result = SettableFuture.create();
    this.resultList = Arrays.<ListenableFuture<TaskResult>>asList(this.result);
}

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From source file:edu.umich.si.inteco.minuku.dao.AnnotatedImageDataRecordDAO.java

@Override
public Future<List<T>> getAll() throws DAOException {
    final SettableFuture<List<T>> settableFuture = SettableFuture.create();
    Firebase imageListRef = new Firebase(this.mFirebaseUrl).child(myUserEmail)
            .child(new SimpleDateFormat("MMddyyyy").format(new Date()).toString()).child(imageType);

    imageListRef.addValueEventListener(new ValueEventListener() {
        @Override//  www .j  a va 2s. co  m
        public void onDataChange(DataSnapshot dataSnapshot) {
            Map<String, T> imageListMap = (HashMap<String, T>) dataSnapshot.getValue();
            List<T> values = (List) imageListMap.values();
            settableFuture.set(values);
        }

        @Override
        public void onCancelled(FirebaseError firebaseError) {
            settableFuture.set(null);
        }
    });
    return settableFuture;
}

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From source file:com.facebook.buck.remoteexecution.grpc.GrpcRemoteExecutionService.java

@Override
public ExecutionResult execute(Protocol.Digest actionDigest) throws IOException, InterruptedException {
    SettableFuture<Operation> future = SettableFuture.create();

    getStubWithTraceInfo(actionDigest).execute(
            ExecuteRequest.newBuilder().setInstanceName(instanceName)
                    .setActionDigest(GrpcProtocol.get(actionDigest)).setSkipCacheLookup(false).build(),
            new StreamObserver<Operation>() {
                @Nullable//from  w  ww  .jav a  2  s .c  om
                Operation op = null;

                @Override
                public void onNext(Operation value) {
                    op = value;
                }

                @Override
                public void onError(Throwable t) {
                    future.setException(t);
                }

                @Override
                public void onCompleted() {
                    future.set(op);
                }
            });

    try {
        Operation operation = future.get();
        if (operation.hasError()) {
            throw new RuntimeException("Execution failed: " + operation.getError().getMessage());
        }

        if (!operation.hasResponse()) {
            throw new RuntimeException("Invalid operation response: missing ExecutionResponse object");
        }

        ActionResult actionResult = operation.getResponse().unpack(ExecuteResponse.class).getResult();
        return new ExecutionResult() {
            @Override
            public List<OutputDirectory> getOutputDirectories() {
                return actionResult.getOutputDirectoriesList().stream().map(GrpcOutputDirectory::new)
                        .collect(Collectors.toList());
            }

            @Override
            public List<OutputFile> getOutputFiles() {
                return actionResult.getOutputFilesList().stream().map(GrpcOutputFile::new)
                        .collect(Collectors.toList());
            }

            @Override
            public int getExitCode() {
                return actionResult.getExitCode();
            }

            @Override
            public Optional<String> getStderr() {
                ByteString stderrRaw = actionResult.getStderrRaw();
                if (stderrRaw == null
                        || (stderrRaw.isEmpty() && actionResult.getStderrDigest().getSizeBytes() > 0)) {
                    System.err.println("Got stderr digest.");
                    try {
                        ByteString data = ByteString.EMPTY;
                        GrpcRemoteExecutionClients.readByteStream(instanceName,
                                new GrpcDigest(actionResult.getStderrDigest()), byteStreamStub, data::concat)
                                .get();
                        return Optional.of(data.toStringUtf8());
                    } catch (InterruptedException | ExecutionException e) {
                        throw new RuntimeException(e);
                    }
                } else {
                    System.err.println("Got raw stderr: " + stderrRaw.toStringUtf8());
                    return Optional.of(stderrRaw.toStringUtf8());
                }
            }
        };
    } catch (ExecutionException e) {
        Throwables.throwIfInstanceOf(e.getCause(), IOException.class);
        Throwables.throwIfInstanceOf(e.getCause(), InterruptedException.class);
        e.printStackTrace();
        throw new BuckUncheckedExecutionException(e.getCause());
    }
}

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From source file:com.spotify.folsom.client.DefaultRawMemcacheClient.java

public static ListenableFuture<RawMemcacheClient> connect(final HostAndPort address,
        final int outstandingRequestLimit, final boolean binary, final Executor executor,
        final long timeoutMillis, final Charset charset, final Metrics metrics, final int maxSetLength) {

    final ChannelInboundHandler decoder;
    if (binary) {
        decoder = new BinaryMemcacheDecoder();
    } else {/*from ww w  .  j a  va2s  .c  o m*/
        decoder = new AsciiMemcacheDecoder(charset);
    }

    final ChannelHandler initializer = new ChannelInitializer<Channel>() {
        @Override
        protected void initChannel(final Channel ch) throws Exception {
            ch.pipeline().addLast(new TcpTuningHandler(), decoder,

                    // Downstream
                    new MemcacheEncoder());
        }
    };

    final SettableFuture<RawMemcacheClient> clientFuture = SettableFuture.create();

    final Bootstrap bootstrap = new Bootstrap().group(EVENT_LOOP_GROUP).handler(initializer)
            .channel(NioSocketChannel.class)
            .option(ChannelOption.MESSAGE_SIZE_ESTIMATOR, SimpleSizeEstimator.INSTANCE);

    final ChannelFuture connectFuture = bootstrap
            .connect(new InetSocketAddress(address.getHostText(), address.getPort()));

    connectFuture.addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(final ChannelFuture future) throws Exception {
            if (future.isSuccess()) {
                // Create client
                final RawMemcacheClient client = new DefaultRawMemcacheClient(address, future.channel(),
                        outstandingRequestLimit, executor, timeoutMillis, metrics, maxSetLength);
                clientFuture.set(client);
            } else {
                clientFuture.setException(future.cause());
            }
        }
    });

    return onExecutor(clientFuture, executor);
}

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