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

Introduction

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

Prototype

@GwtIncompatible("TODO")
public static <V> V getUnchecked(Future<V> future)

Source Link

Document

Returns the result of calling Future#get() uninterruptibly on a task known not to throw a checked exception.

Usage

From source file:co.cask.cdap.gateway.router.RouterMain.java

@Override
public void start() {
    LOG.info("Starting Router...");
    Futures.getUnchecked(Services.chainStart(zkClientService, router));
    LOG.info("Router started.");
}

From source file:org.onosproject.store.primitives.impl.DefaultDistributedQueue.java

@Override
public long size() {
    final MeteringAgent.Context timer = monitor.startTimer(SIZE);
    return Futures.getUnchecked(database.queueSize(name).whenComplete((r, e) -> timer.stop(e)));
}

From source file:com.webbfontaine.valuewebb.irms.impl.risk.data.RiskResultCollector.java

public void calculateResults() {
    if (results == null) {

        LOGGER.trace("Calculating 'Risk Collector' state based on results: {}", results);

        ListenableFuture<List<List<RiskResult>>> future = Futures.allAsList(futures);
        results = Futures.getUnchecked(future);

        finalColor = getHighestColor();/*  w w w  . j  a v a 2 s  . c om*/

        hitsCount = size(nonEmptyResults(results));

        groupedSelectedResults = groupByCriterionName();

        LOGGER.trace("'Risk Collector' state, finalColor: {}, hitsCount: {}, groupedSelectedResults: {}",
                new Object[] { finalColor, hitsCount, groupedSelectedResults });
    }
}

From source file:co.cask.cdap.gateway.router.RouterMain.java

@Override
public void stop() {
    LOG.info("Stopping Router...");
    Futures.getUnchecked(Services.chainStop(router, zkClientService));
    LOG.info("Router stopped.");
}

From source file:org.onosproject.store.primitives.impl.DefaultDistributedQueue.java

@Override
public void push(E entry) {
    checkNotNull(entry, ERROR_NULL_ENTRY);
    final MeteringAgent.Context timer = monitor.startTimer(PUSH);
    Futures.getUnchecked(
            database.queuePush(name, serializer.encode(entry)).whenComplete((r, e) -> timer.stop(e)));
}

From source file:org.onosproject.store.consistent.impl.DefaultTransactionContext.java

@SuppressWarnings("unchecked")
@Override/*w w w .  jav a2s.c om*/
public void commit() {
    // TODO: rework commit implementation to be more intuitive
    checkState(isOpen, TX_NOT_OPEN_ERROR);
    CommitResponse response = null;
    try {
        List<DatabaseUpdate> updates = Lists.newLinkedList();
        txMaps.values().forEach(m -> updates.addAll(m.prepareDatabaseUpdates()));
        Transaction transaction = new DefaultTransaction(transactionId, updates);
        response = Futures.getUnchecked(database.prepareAndCommit(transaction));
    } finally {
        if (response != null && !response.success()) {
            abort();
        }
        isOpen = false;
    }
}

From source file:co.cask.cdap.internal.app.runtime.distributed.AbstractTwillProgramController.java

@Override
protected final void doStop() throws Exception {
    stopRequested = true;
    Futures.getUnchecked(twillController.terminate());
}

From source file:co.cask.cdap.common.election.InMemoryElectionRegistry.java

/**
 * Joins the leader election process of the given named group.
 *
 * @param name The group name for performing leader election
 * @param handler The callback for acting on leader election events
 * @return A {@link Cancellable} to withdraw from the process
 *///from w w w. j av  a2 s .c o m
public Cancellable join(final String name, ElectionHandler handler) {
    final RegistryElectionHandler registryHandler = new RegistryElectionHandler(name, handler);

    executor.execute(new Runnable() {
        @Override
        public void run() {
            registry.put(name, registryHandler);

            // Fetch the first handler from the registry map. If it is the same as the newly added one, notify it as leader.
            // The iterator shouldn't be empty
            if (registryHandler == registry.get(name).iterator().next()) {
                registryHandler.leader();
            } else {
                registryHandler.follower();
            }
        }
    });

    // Return a Cancellable that remove the handler from the registry map and notify it become follower.
    // It also select the new leader and notify it.
    return new Cancellable() {
        @Override
        public void cancel() {
            Futures.getUnchecked(executor.submit(new Runnable() {
                @Override
                public void run() {
                    // If not in register or not a leader, simply return.
                    if (!registry.remove(name, registryHandler) || !registryHandler.isLeader()) {
                        return;
                    }

                    // The removed handler is the leader. Notify that it becomes follower
                    registryHandler.follower();

                    // Try to find a new leader. It'll be the first in the list.
                    Iterator<RegistryElectionHandler> iterator = registry.get(name).iterator();
                    if (!iterator.hasNext()) {
                        return;
                    }
                    // Schedule notification of the new leader.
                    final RegistryElectionHandler leader = iterator.next();
                    executor.submit(new Runnable() {
                        @Override
                        public void run() {
                            Iterator<RegistryElectionHandler> iterator = registry.get(name).iterator();
                            // Make sure the leader hasn't changed.
                            // If the leader changed, the adding/removal logic should already handler notification.
                            if (iterator.hasNext() && iterator.next() == leader) {
                                leader.leader();
                            }
                        }
                    });
                }
            }));
        }
    };
}

From source file:co.cask.cdap.security.runtime.AuthenticationServerMain.java

@Override
public void stop() {
    if (authServer != null) {
        LOG.info("Stopping AuthenticationServer.");
        Futures.getUnchecked(Services.chainStop(authServer, zkClientService));
    }/*from w ww  . j  ava 2 s .  co m*/
}

From source file:com.facebook.buck.util.concurrent.WorkThreadTrackingTask.java

@Nullable
protected final T compute() {
    /**/* w  w w. j ava 2 s. c o  m*/
     * Since we now manually implement work stealing in the ForkJoinPool through callined {@link
     * #externalCompute()}, fork join framework no longer guarantees synchronization around the
     * task. So we manually synchronize it.
     */
    try {
        Thread currentThread = Thread.currentThread();
        if (UNSAFE.compareAndSwapObject(this, WORKTHREAD, null, currentThread) || workThread == currentThread) {
            try (Scope ignored = () -> workThread = null) {
                if (result.isDone()) {
                    return getRawResult();
                }
                T res = Objects.requireNonNull(work).get();
                Preconditions.checkState(getRawResult() == null || getRawResult() == result,
                        "A value for this task has already been created: %s", getRawResult());
                result.set(res);
                return res;
            } catch (RuntimeException e) {
                throw e;
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
        return Futures.getUnchecked(result);
    } finally {
        work = null;
        workThread = null;
    }
}