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:edu.umich.si.inteco.minuku.dao.ImageDataRecordDAO.java

@Override
public Future<List<ImageDataRecord>> getAll() throws DAOException {
    final SettableFuture<List<ImageDataRecord>> settableFuture = SettableFuture.create();
    Firebase imageListRef = new Firebase(Constants.getInstance().getFirebaseUrlForImages()).child(myUserEmail)
            .child(new SimpleDateFormat("MMddyyyy").format(new Date()).toString());

    imageListRef.addValueEventListener(new ValueEventListener() {
        @Override/* ww  w .  j a  v  a 2  s. c  o  m*/
        public void onDataChange(DataSnapshot dataSnapshot) {
            Map<String, ImageDataRecord> imageListMap = (HashMap<String, ImageDataRecord>) dataSnapshot
                    .getValue();
            List<ImageDataRecord> 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:co.cask.cdap.explore.jdbc.MockExploreClient.java

@Override
public ListenableFuture<ExploreExecutionResult> submit(Id.Namespace namespace, final String statement) {
    SettableFuture<ExploreExecutionResult> futureDelegate = SettableFuture.create();
    futureDelegate.set(new MockExploreExecutionResult(statementsToResults.get(statement).iterator(),
            statementsToMetadata.get(statement)));
    return new MockStatementExecutionFuture(futureDelegate, statement, statementsToMetadata,
            statementsToResults);//  w w  w  . j a  v  a  2s . co  m
}

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From source file:com.microsoft.windowsazure.mobileservices.table.sync.MobileServiceSyncTable.java

/**
 * Performs a query against the remote table and stores results.
 *
 * @param query    an optional query to filter results
 * @param queryKey key to identify the query
 * @return A ListenableFuture that is done when results have been pulled.
 *//*from   w w w .  j  a va  2s.  c o  m*/
public ListenableFuture<Void> pull(Query query, String queryId) {
    ListenableFuture<Void> pull = this.mInternalTable.pull(query, queryId);

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

    Futures.addCallback(pull, new FutureCallback<Void>() {

        @Override
        public void onFailure(Throwable throwable) {
            result.setException(throwable);
        }

        @Override
        public void onSuccess(Void value) {
            result.set(value);
        }
    });

    return result;
}

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From source file:com.dogecoin.dogecoinj.net.BlockingClient.java

/**
 * <p>Creates a new client to the given server address using the given {@link StreamParser} to decode the data.
 * The given parser <b>MUST</b> be unique to this object. This does not block while waiting for the connection to
 * open, but will call either the {@link StreamParser#connectionOpened()} or
 * {@link StreamParser#connectionClosed()} callback on the created network event processing thread.</p>
 *
 * @param connectTimeoutMillis The connect timeout set on the connection (in milliseconds). 0 is interpreted as no
 *                             timeout./*from   w w  w  .  jav  a 2  s  .c o  m*/
 * @param socketFactory An object that creates {@link Socket} objects on demand, which may be customised to control
 *                      how this client connects to the internet. If not sure, use SocketFactory.getDefault()
 * @param clientSet A set which this object will add itself to after initialization, and then remove itself from
 */
public BlockingClient(final SocketAddress serverAddress, final StreamParser parser,
        final int connectTimeoutMillis, final SocketFactory socketFactory,
        @Nullable final Set<BlockingClient> clientSet) throws IOException {
    connectFuture = SettableFuture.create();
    // Try to fit at least one message in the network buffer, but place an upper and lower limit on its size to make
    // sure it doesnt get too large or have to call read too often.
    dbuf = ByteBuffer.allocateDirect(
            Math.min(Math.max(parser.getMaxMessageSize(), BUFFER_SIZE_LOWER_BOUND), BUFFER_SIZE_UPPER_BOUND));
    parser.setWriteTarget(this);
    socket = socketFactory.createSocket();
    Thread t = new Thread() {
        @Override
        public void run() {
            if (clientSet != null)
                clientSet.add(BlockingClient.this);
            try {
                socket.connect(serverAddress, connectTimeoutMillis);
                parser.connectionOpened();
                connectFuture.set(serverAddress);
                InputStream stream = socket.getInputStream();
                byte[] readBuff = new byte[dbuf.capacity()];

                while (true) {
                    // TODO Kill the message duplication here
                    checkState(dbuf.remaining() > 0 && dbuf.remaining() <= readBuff.length);
                    int read = stream.read(readBuff, 0,
                            Math.max(1, Math.min(dbuf.remaining(), stream.available())));
                    if (read == -1)
                        return;
                    dbuf.put(readBuff, 0, read);
                    // "flip" the buffer - setting the limit to the current position and setting position to 0
                    dbuf.flip();
                    // Use parser.receiveBytes's return value as a double-check that it stopped reading at the right
                    // location
                    int bytesConsumed = parser.receiveBytes(dbuf);
                    checkState(dbuf.position() == bytesConsumed);
                    // Now drop the bytes which were read by compacting dbuf (resetting limit and keeping relative
                    // position)
                    dbuf.compact();
                }
            } catch (Exception e) {
                if (!vCloseRequested) {
                    log.error("Error trying to open/read from connection: " + serverAddress, e);
                    connectFuture.setException(e);
                }
            } finally {
                try {
                    socket.close();
                } catch (IOException e1) {
                    // At this point there isn't much we can do, and we can probably assume the channel is closed
                }
                if (clientSet != null)
                    clientSet.remove(BlockingClient.this);
                parser.connectionClosed();
            }
        }
    };
    t.setName("BlockingClient network thread for " + serverAddress);
    t.setDaemon(true);
    t.start();
}

---

From source file:com.continuuity.weave.internal.ZKWeaveController.java

@Override
public ListenableFuture<State> stop() {
    final SettableFuture<State> result = SettableFuture.create();
    final ListenableFuture<State> future = super.stop();
    future.addListener(new Runnable() {
        @Override//from  www.  java2s .  c  o m
        public void run() {
            logPoller.interrupt();
            try {
                logPoller.join();
            } catch (InterruptedException e) {
                LOG.warn("Joining of log poller thread interrupted.", e);
            }
            Futures.addCallback(kafkaClient.stop(), new FutureCallback<Service.State>() {
                @Override
                public void onSuccess(Service.State state) {
                    try {
                        future.get();
                        result.set(State.TERMINATED);
                    } catch (Exception e) {
                        LOG.error("Failed when stopping local services", e);
                        result.setException(e);
                    }
                }

                @Override
                public void onFailure(Throwable t) {
                    result.setException(t);
                }
            });
        }
    }, Threads.SAME_THREAD_EXECUTOR);
    return result;
}

---

From source file:com.linecorp.armeria.internal.grpc.StreamRecorder.java

private StreamRecorder() {
    firstValue = SettableFuture.create();
    latch = new CountDownLatch(1);
    results = Collections.synchronizedList(new ArrayList<T>());
}

---

From source file:org.apache.beam.runners.fnexecution.control.FnApiControlClient.java

public synchronized ListenableFuture<BeamFnApi.InstructionResponse> handle(
        BeamFnApi.InstructionRequest request) {
    LOG.debug("Sending InstructionRequest {}", request);
    SettableFuture<BeamFnApi.InstructionResponse> resultFuture = SettableFuture.create();
    outstandingRequests.put(request.getInstructionId(), resultFuture);
    requestReceiver.onNext(request);/*from   w  w  w  . ja  v a  2  s  .  com*/
    return resultFuture;
}

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From source file:io.joynr.messaging.http.operation.LongPollingMessageReceiver.java

@Override
public synchronized Future<Void> start(MessageArrivedListener messageListener,
        ReceiverStatusListener... receiverStatusListeners) {
    synchronized (shutdownSynchronizer) {
        if (shutdown) {
            throw new JoynrShutdownException("Cannot register Message Listener: " + messageListener
                    + ": LongPollingMessageReceiver is already shutting down");
        }/*from  w w  w .  ja  v a  2  s .com*/
    }

    if (isStarted()) {
        return Futures.immediateFailedFuture(new IllegalStateException("receiver is already started"));
    }

    final SettableFuture<Void> channelCreatedFuture = SettableFuture.create();
    ReceiverStatusListener[] statusListeners = ObjectArrays.concat(new ReceiverStatusListener() {

        @Override
        // Register the ChannelUrl once the receiver is started
        public void receiverStarted() {
            if (channelMonitor.isChannelCreated()) {
                for (ChannelCreatedListener listener : channelCreatedListeners) {
                    listener.channelCreated(channelMonitor.getChannelUrl());
                }
                // Signal that the channel is now created for anyone blocking on the future
                channelCreatedFuture.set(null);
            }
        }

        @Override
        // Shutdown the receiver if an exception is thrown
        public void receiverException(Throwable e) {
            channelCreatedFuture.setException(e);
            channelMonitor.shutdown();
        }
    }, receiverStatusListeners);

    channelMonitor.startLongPolling(messageListener, statusListeners);
    return channelCreatedFuture;
}

---

From source file:de.btobastian.javacord.utils.DiscordWebsocket.java

/**
 * Creates a new instance of this class.
 *
 * @param serverURI The uri of the gateway the socket should connect to.
 * @param api The api./*ww w  .j  a  v  a2  s . c o m*/
 * @param reconnect Whether it's a reconnect or not.
 */
public DiscordWebsocket(URI serverURI, ImplDiscordAPI api, boolean reconnect) {
    super(serverURI);
    this.api = api;
    this.ready = SettableFuture.create();
    registerHandlers();
    this.isReconnect = reconnect;
}

---

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

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

    imageListRef.addValueEventListener(new ValueEventListener() {
        @Override/* www  . j a  va2  s  .c o  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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