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

Introduction

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

Prototype

public static <V> void addCallback(final ListenableFuture<V> future, final FutureCallback<? super V> callback,
        Executor executor) 

Source Link

Document

Registers separate success and failure callbacks to be run when the Future 's computation is java.util.concurrent.Future#isDone() complete or, if the computation is already complete, immediately.

Usage

From source file:com.facebook.presto.util.MoreFutures.java

public static <T> ListenableFuture<T> addTimeout(final ListenableFuture<T> future,
        final Callable<T> timeoutTask, Duration timeout, ScheduledExecutorService executorService) {
    // if the future is already complete, just return it
    if (future.isDone()) {
        return future;
    }//from   w w w  . j  av  a 2 s.co m

    // wrap the future, so we can set the result directly
    final SettableFuture<T> settableFuture = SettableFuture.create();

    // schedule a task to complete the future when the time expires
    final ScheduledFuture<?> timeoutTaskFuture = executorService.schedule(
            new TimeoutFutureTask<>(settableFuture, timeoutTask, future), timeout.toMillis(),
            TimeUnit.MILLISECONDS);

    // add a listener to the core future, which simply updates the settable future
    Futures.addCallback(future, new FutureCallback<T>() {
        @Override
        public void onSuccess(@Nullable T result) {
            settableFuture.set(result);
            timeoutTaskFuture.cancel(true);
        }

        @Override
        public void onFailure(Throwable t) {
            settableFuture.setException(t);
            timeoutTaskFuture.cancel(true);
        }
    }, executorService);

    return settableFuture;
}

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From source file:com.orangerhymelabs.helenus.cassandra.database.DatabaseService.java

public void read(String name, FutureCallback<Database> callback) {
    Futures.addCallback(read(name), callback, MoreExecutors.directExecutor());
}

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From source file:com.android.tools.idea.apk.viewer.diff.ApkDiffPanel.java

public ApkDiffPanel(ApkDiffParser apkDiffParser) {
    // construct the main tree
    ListenableFuture<DefaultMutableTreeNode> treeStructureFuture = apkDiffParser.constructTreeStructure();
    FutureCallBackAdapter<DefaultMutableTreeNode> setRootNode = new FutureCallBackAdapter<DefaultMutableTreeNode>() {
        @Override/*  w  w w .j  a  va 2  s  .  c o  m*/
        public void onSuccess(DefaultMutableTreeNode result) {
            setRootNode(result);
        }
    };
    Futures.addCallback(treeStructureFuture, setRootNode, EdtExecutor.INSTANCE);
}

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

public static <V> ListenableFuture<V> onSuccessAndFailure(ListenableFuture<V> future, Runnable onSuccess,
        Runnable onFailure) {/*from   w w w  . ja v a  2  s  .  co  m*/
    SettableFuture<V> outerFuture = SettableFuture.create();
    Futures.addCallback(future, new FutureCallback<V>() {
        @Override
        public void onSuccess(V result) {
            onSuccess.run();
            outerFuture.set(result);
        }

        @Override
        public void onFailure(Throwable t) {
            logger.debug(t.getMessage(), t);
            onFailure.run();
            outerFuture.setException(t);
        }
    }, MoreExecutors.directExecutor());
    return outerFuture;
}

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From source file:com.datastax.driver.stress.AsynchronousConsumer.java

protected void handle(QueryGenerator.Request request) {

    final Reporter.Context ctx = reporter.newRequest();

    ResultSetFuture resultSetFuture = request.executeAsync(session);
    Futures.addCallback(resultSetFuture, new FutureCallback<ResultSet>() {
        @Override//from ww  w. ja  v a 2s .  c o  m
        public void onSuccess(final ResultSet result) {
            ctx.done();
            request();
        }

        @Override
        public void onFailure(final Throwable t) {
            // Could do better I suppose
            System.err.println("Error during request: " + t);
            ctx.done();
            request();
        }
    }, executorService);
}

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From source file:com.spotify.futures.FuturesExtra.java

/**
 * Returns a future that fails with a {@link TimeoutException} if the parent future has not
 * finished before the timeout. The new returned future will always be executed on the provided
 * scheduledExecutorService, even when the parent future does not timeout.
 *
 * @param scheduledExecutorService executor that runs the timeout code. If the future times out,
 *                                 this is also the thread any callbacks will run on.
 * @param future                   the future to wrap as a timeout future.
 * @param timeout                  how long to wait before timing out a future
 * @param unit                     unit of the timeout
 * @return a future that may timeout before the parent future is done.
 *///from   w  w w.ja  v  a  2  s  .  c  o m
public static <T> ListenableFuture<T> makeTimeoutFuture(ScheduledExecutorService scheduledExecutorService,
        ListenableFuture<T> future, final long timeout, final TimeUnit unit) {
    final SettableFuture<T> promise = SettableFuture.create();

    scheduledExecutorService.schedule(new Runnable() {
        @Override
        public void run() {
            String message = "Future timed out after " + timeout + " " + unit.name();
            promise.setException(new TimeoutException(message));
        }
    }, timeout, unit);

    Futures.addCallback(future, new FutureCallback<T>() {
        @Override
        public void onSuccess(T result) {
            promise.set(result);
        }

        @Override
        public void onFailure(Throwable t) {
            promise.setException(t);
        }
    }, scheduledExecutorService);

    return promise;
}

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From source file:com.orangerhymelabs.helenus.cassandra.database.DatabaseService.java

public void readAll(FutureCallback<List<Database>> callback, Object... parms) {
    Futures.addCallback(readAll(parms), callback, MoreExecutors.directExecutor());
}

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From source file:io.v.v23.InputChannels.java

private static <T> FutureCallback<T> newCallbackForList(final InputChannel<T> channel, final List<T> list,
        final SettableFuture<List<T>> future, final Executor executor) {
    return new FutureCallback<T>() {
        @Override//  w  ww  . j  av a  2  s.c  o m
        public void onSuccess(T result) {
            list.add(result);
            Futures.addCallback(channel.recv(), newCallbackForList(channel, list, future, executor), executor);
        }

        @Override
        public void onFailure(Throwable t) {
            if (t instanceof EndOfFileException) {
                future.set(list);
            } else {
                future.setException(t);
            }
        }
    };
}

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From source file:io.v.android.apps.reader.DeviceSetChooserActivity.java

@Override
protected void onStart() {
    super.onStart();

    // Set the adapter only after the DB is initialized.
    Futures.addCallback(getDB().onInitialized(), new FutureCallback<Void>() {

        @Override//w w  w . j a v a  2  s  . c o  m
        public void onSuccess(Void result) {
            // The adapter for the recycler view
            mAdapter = new DeviceSetListAdapter(DeviceSetChooserActivity.this);

            // When a file is clicked from the list, start the PdfViewerActivity.
            mAdapter.setOnDeviceSetClickListener((adapter, v, position) -> {
                Intent intent = PdfViewerActivity.createIntent(getApplicationContext(),
                        adapter.getDeviceSetId(position));
                startActivity(intent);
            });

            mRecyclerView.setAdapter(mAdapter);
        }

        @Override
        public void onFailure(Throwable t) {
            Log.e(TAG, "Could not initialize the database.", t);
        }

    }, Utils.mainThreadExecutor());

    // ItemTouchHelper for handling the swipe action.
    ItemTouchHelper.SimpleCallback touchCallback;
    touchCallback = new ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.LEFT) {
        @Override
        public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder,
                RecyclerView.ViewHolder target) {
            return false;
        }

        @Override
        public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
            // Delete the device set on left swipe.
            if (direction == ItemTouchHelper.LEFT) {
                getDB().deleteDeviceSet(mAdapter.getDeviceSetId(viewHolder.getLayoutPosition()));
            }
        }
    };
    new ItemTouchHelper(touchCallback).attachToRecyclerView(mRecyclerView);
}

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From source file:com.skcraft.launcher.update.UpdateManager.java

public void performUpdate(final Window window) {
    final URL url = pendingUpdateUrl;

    if (url != null) {
        SelfUpdater downloader = new SelfUpdater(launcher, url);
        ObservableFuture<File> future = new ObservableFuture<File>(launcher.getExecutor().submit(downloader),
                downloader);//from  ww  w . jav  a2s.c  o  m

        Futures.addCallback(future, new FutureCallback<File>() {
            @Override
            public void onSuccess(File result) {
                propertySupport.firePropertyChange("pendingUpdate", true, false);
                UpdateManager.this.pendingUpdateUrl = null;

                SwingHelper.showMessageDialog(window, SharedLocale.tr("launcher.selfUpdateComplete"),
                        SharedLocale.tr("launcher.selfUpdateCompleteTitle"), null,
                        JOptionPane.INFORMATION_MESSAGE);
            }

            @Override
            public void onFailure(Throwable t) {
            }
        }, SwingExecutor.INSTANCE);

        ProgressDialog.showProgress(window, future, SharedLocale.tr("launcher.selfUpdatingTitle"),
                SharedLocale.tr("launcher.selfUpdatingStatus"));
        SwingHelper.addErrorDialogCallback(window, future);
    } else {
        propertySupport.firePropertyChange("pendingUpdate", false, false);
    }
}

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