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

Introduction

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

Prototype

public static <V> ListenableFutureTask<V> create(Callable<V> callable) 

Source Link

Document

Creates a ListenableFutureTask that will upon running, execute the given Callable .

Usage

From source file:org.trinity.shellplugin.widget.impl.view.qt.StyledViewsPlugin.java

@Override
protected void startUp() throws Exception {
    final ListenableFutureTask<Void> futureTask = ListenableFutureTask.create(new Callable<Void>() {
        @Override//from   w  ww.ja  va 2s.  c  om
        public Void call() {
            try {
                loadStylelSheet();
            } catch (final IOException e) {
                Throwables.propagate(e);
            }
            return null;
        }
    });
    QApplication.invokeLater(futureTask);
}

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From source file:org.robotninjas.util.command.CommandBuilder.java

public <V> AsyncCommand<V> build(final Callable<V> callable, final FutureFallback<V> fallback) {
    final Function<Callable<V>, Callable<V>> f = callableBuilder.build();
    return new AsyncCommand<V>() {
        @Override//from w  w  w. j ava  2s .co m
        public ListenableFuture<V> execute() {
            Callable<V> c = f.apply(callable);
            ListenableFutureTask<V> t = ListenableFutureTask.create(c);
            executor.execute(t);
            return withFallback(t, fallback);
        }
    };
}

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From source file:kis.daggerSample.AsyncPiko.java

private <T> ListenableFuture<T> task(String name, Supplier<T> supplier, long millis) {
    ListenableFutureTask<T> task = ListenableFutureTask.create(() -> {
        System.out.println("start " + name);

        Brave brave = new Brave.Builder(name + " task").reporter(reporter).build();
        ServerTracer serverTracer = brave.serverTracer();
        serverTracer.setStateCurrentTrace(spanId, "ppap span");
        //serverTracer.setServerReceived();
        ClientTracer clientTracer = brave.clientTracer();
        clientTracer.startNewSpan(name);
        clientTracer.setClientSent();/*  w w  w . ja  v  a2  s .  c om*/
        try {
            Thread.sleep(millis);
        } catch (InterruptedException ignored) {
        }
        T result = supplier.get();
        clientTracer.setClientReceived();
        //serverTracer.setServerSend();
        System.out.println("finish " + name);

        return result;
    });
    task.run();
    return task;
}

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From source file:org.trinity.foundation.render.qt.impl.binding.view.delegate.ChildViewDelegateImpl.java

@SuppressWarnings("unchecked")
@Override/*  w w  w .  j  av a2 s. c o m*/
public <T> ListenableFuture<T> newView(final Object parentView, final Class<T> childViewType,
        final int position) {
    checkArgument(parentView instanceof QWidget,
            format("Expected parent view should be of type %s", QWidget.class.getName()));
    checkArgument(QWidget.class.isAssignableFrom(childViewType),
            format("Expected child view should be of type %s", QWidget.class.getName()));

    final ListenableFutureTask<T> newViewTask = ListenableFutureTask.create(new Callable<T>() {
        @Override
        public T call() throws Exception {
            final QWidget parentViewInstance = (QWidget) parentView;

            final T childView = ChildViewDelegateImpl.this.injector.getInstance(childViewType);
            final QWidget childViewInstance = (QWidget) childView;
            childViewInstance.setParent(parentViewInstance);
            return (T) childViewInstance;
        }
    });

    QApplication.invokeLater(newViewTask);

    return newViewTask;
}

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From source file:org.fcrepo.indexer.AsynchIndexer.java

@Override
public ListenableFuture<Result> remove(final URI identifier) throws IOException {
    LOGGER.debug("Received remove for identifier: {}", identifier);
    final ListenableFutureTask<Result> task = ListenableFutureTask.create(removeSynch(identifier));
    task.addListener(new Runnable() {
        @Override//w w w .  ja v a 2s.c  o  m
        public void run() {
            synchronized (this) {
                notifyAll();
            }
        }
    }, executorService());
    executorService().submit(task);
    return task;
}

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From source file:com.afewmoreamps.util.PrefetchingInputStream.java

public PrefetchingInputStream(final FileChannel channel, final int prefetchSize, final int prefetchCount)
        throws IOException {
    buffers = new ByteBuffer[prefetchCount];
    for (int ii = 0; ii < prefetchCount; ii++) {
        buffers[ii] = ByteBuffer.allocateDirect(prefetchSize);
        availableBuffers.offer(buffers[ii]);
    }// w  w  w  .  j a va2s  .c  o  m

    int currentReadPosition = (int) channel.position();
    final long channelSize = channel.size();
    while (currentReadPosition != channelSize) {
        final int readStartingAt = currentReadPosition;
        final int limit = (int) Math.min(currentReadPosition + prefetchSize, channelSize);
        currentReadPosition += limit;
        readTasks.add(ListenableFutureTask.create(new Callable<ByteBuffer>() {
            @Override
            public ByteBuffer call() throws Exception {
                final ByteBuffer buffer = availableBuffers.take();
                buffer.clear();
                buffer.limit(limit);
                while (buffer.hasRemaining()) {
                    int read = channel.read(buffer, readStartingAt);
                    if (read == -1) {
                        throw new EOFException();
                    }
                }
                buffer.flip();
                return buffer;
            }
        }));
    }
    es.execute(new Runnable() {
        @Override
        public void run() {
            for (ListenableFutureTask<?> task : readTasks) {
                task.run();
                try {
                    try {
                        task.get();
                    } catch (InterruptedException e) {
                        return;
                    }
                } catch (ExecutionException e) {
                    if (e.getCause() instanceof InterruptedException) {
                        return;
                    }
                }
            }
        }
    });
    m_taskIterator = readTasks.iterator();
}

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From source file:org.robotninjas.util.command.CommandBuilder.java

public <V> AsyncCommand<V> build(final Callable<V> callable) {
    final Function<Callable<V>, Callable<V>> f = callableBuilder.build();
    return new AsyncCommand<V>() {
        @Override/*from   w w  w .j a va2 s.co  m*/
        public ListenableFuture<V> execute() throws Exception {
            Callable<V> c = f.apply(callable);
            ListenableFutureTask<V> t = ListenableFutureTask.create(c);
            executor.execute(t);
            return t;
        }
    };
}

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From source file:org.apache.phoenix.query.PhoenixStatsCacheLoader.java

@Override
public ListenableFuture<GuidePostsInfo> reload(final GuidePostsKey key, GuidePostsInfo prevGuidepostInfo) {
    if (statsLoader.needsLoad()) {
        // schedule asynchronous task
        ListenableFutureTask<GuidePostsInfo> task = ListenableFutureTask.create(new Callable<GuidePostsInfo>() {
            public GuidePostsInfo call() {
                try {
                    return statsLoader.loadStats(key, prevGuidepostInfo);
                } catch (Exception e) {
                    logger.warn("Unable to load stats from table: " + key.toString(), e);
                    return prevGuidepostInfo;
                }// w ww  .j  a va2 s .  c  om
            }
        });
        executor.execute(task);
        return task;
    } else {
        return Futures.immediateFuture(prevGuidepostInfo);
    }
}

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From source file:org.apache.usergrid.persistence.index.impl.EsIndexCacheImpl.java

@Inject
public EsIndexCacheImpl(final EsProvider provider, final IndexFig indexFig) {

    this.refreshExecutors = MoreExecutors
            .listeningDecorator(Executors.newScheduledThreadPool(indexFig.getIndexCacheMaxWorkers()));

    this.provider = provider;

    aliasIndexCache = CacheBuilder.newBuilder().maximumSize(1000).refreshAfterWrite(5, TimeUnit.MINUTES)
            .build(new CacheLoader<String, String[]>() {
                @Override/*w  w  w  .jav a  2 s.  c o  m*/
                public ListenableFuture<String[]> reload(final String key, String[] oldValue) throws Exception {
                    ListenableFutureTask<String[]> task = ListenableFutureTask.create(new Callable<String[]>() {
                        public String[] call() {
                            return load(key);
                        }
                    });
                    refreshExecutors.execute(task);
                    return task;
                }

                @Override
                public String[] load(final String aliasName) {
                    return getIndexesFromEs(aliasName);
                }
            });
}

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From source file:com.addthis.hydra.data.query.engine.EngineLoader.java

@Override
public ListenableFuture<QueryEngine> reload(final String dir, final QueryEngine oldValue) throws Exception {
    //test for new data
    if (((QueryEngineDirectory) oldValue).isOlder(dir)) {
        ListenableFutureTask<QueryEngine> task = ListenableFutureTask
                .create(new RefreshEngineCall(dir, oldValue, this));
        engineRefresherPool.submit(task);
        return task;
    } else {/*  w  ww.j a v a  2  s  .com*/
        SettableFuture<QueryEngine> task = SettableFuture.create();
        task.set(oldValue);
        return task;
    }
}

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