List of usage examples for com.google.common.util.concurrent AsyncFunction AsyncFunction
AsyncFunction
From source file:org.robotninjas.barge.rpc.netty.ProtoRpcRaftClient.java
private <T> ListenableFuture<T> call(final RpcCall<T> call) { LOGGER.debug("Sending message to {}: {}", replica, call); ListenableFuture<NettyRpcChannel> channel = null; try {/*from ww w .j a v a2 s . co m*/ channel = channelPool.borrowObject(); ListenableFuture<T> response = transform(channel, new AsyncFunction<NettyRpcChannel, T>() { @Override public ListenableFuture<T> apply(NettyRpcChannel channel) throws Exception { RaftProto.RaftService.Stub stub = RaftProto.RaftService.newStub(channel); ClientController controller = new ClientController(channel); controller.setTimeout(DEFAULT_TIMEOUT, TimeUnit.MILLISECONDS); RpcHandlerFuture<T> responseHandler = new RpcHandlerFuture<T>(controller); call.call(stub, controller, responseHandler); return responseHandler; } }); response.addListener(returnChannel(channel), sameThreadExecutor()); return response; } catch (Exception e) { try { channelPool.invalidateObject(channel); } catch (Exception ignored) { } channel = null; return immediateFailedFuture(e); } finally { try { if (null != channel) { channelPool.returnObject(channel); } } catch (Exception ignored) { } } }
From source file:org.opendaylight.toaster.impl.ToasterServiceImpl.java
@Override public Future<RpcResult<java.lang.Void>> cancelToast() { LOG.info("cancelToast"); final InstanceIdentifier<Toaster> TOASTER_IID = InstanceIdentifier.builder(Toaster.class).build(); final ReadWriteTransaction tx = broker.newReadWriteTransaction(); ListenableFuture<Optional<Toaster>> readFuture = tx.read(LogicalDatastoreType.OPERATIONAL, TOASTER_IID); //Optional<Toaster>ListenableFuture??VoidListenableFuture final ListenableFuture<Void> commitFuture = Futures.transform(readFuture, new AsyncFunction<Optional<Toaster>, Void>() { @Override/*from w ww. j a v a 2s .c o m*/ public ListenableFuture<Void> apply(final Optional<Toaster> toasterData) throws Exception { //?toastertasterStatus ToasterStatus toasterStatus = ToasterStatus.Down; if (toasterData.isPresent()) { toasterStatus = toasterData.get().getToasterStatus(); } //???Up if (toasterStatus == ToasterStatus.Down) { //Down? LOG.info("the toaster is not running!"); return Futures.immediateFailedCheckedFuture(new TransactionCommitFailedException("", RpcResultBuilder.newWarning(ErrorType.APPLICATION, "not-in-use", "Toaster is not running", null, null, null))); } else { //up??down? tx.put(LogicalDatastoreType.OPERATIONAL, TOASTER_IID, new ToasterBuilder().setToasterStatus(ToasterStatus.Down).build()); return tx.submit(); } } }); //callback Futures.addCallback(commitFuture, new FutureCallback<Void>() { @Override public void onSuccess(final Void result) { // data store?makeToast LOG.info("******Task was canceled.******"); } @Override public void onFailure(final Throwable ex) { LOG.debug("Failed to commit Toaster status", ex); } }); return Futures.immediateFuture(RpcResultBuilder.<Void>success().build()); }
From source file:com.android.camera.one.v2.initialization.PreviewStarter.java
/** * See {@link OneCamera#startPreview}.//w w w . jav a 2 s .c om * * @param surface The preview surface to use. */ public ListenableFuture<Void> startPreview(final Surface surface) { // When we have the preview surface, start the capture session. List<Surface> surfaceList = new ArrayList<>(); // Workaround of the face detection failure on Nexus 5 and L. (b/21039466) // Need to create a capture session with the single preview stream first // to lock it as the first stream. Then resend the another session with preview // and JPEG stream. if (ApiHelper.isLorLMr1() && ApiHelper.IS_NEXUS_5) { surfaceList.add(surface); mCaptureSessionCreator.createCaptureSession(surfaceList); surfaceList.addAll(mOutputSurfaces); } else { surfaceList.addAll(mOutputSurfaces); surfaceList.add(surface); } final ListenableFuture<CameraCaptureSessionProxy> sessionFuture = mCaptureSessionCreator .createCaptureSession(surfaceList); return Futures.transform(sessionFuture, new AsyncFunction<CameraCaptureSessionProxy, Void>() { @Override public ListenableFuture<Void> apply(CameraCaptureSessionProxy captureSession) throws Exception { mSessionListener.onCameraCaptureSessionCreated(captureSession, surface); return Futures.immediateFuture(null); } }); }
From source file:org.robotninjas.util.examples.FunctionComposerExample.java
AsyncFunction<List<File>, List<File>> backupFiles() {
return new AsyncFunction<List<File>, List<File>>() {
@Override//from w w w . jav a2 s.co m
public ListenableFuture<List<File>> apply(List<File> input) throws Exception {
System.out.println("5");
return immediateFuture((List<File>) Lists.<File>newArrayList());
}
};
}
From source file:com.facebook.buck.parser.ParserLeaseVendor.java
/** * @param cell the cell in which we're parsing * @param withParser the function that performs the interaction with the parser * @param executorService where to apply the async function * @param <T> type of result//ww w . jav a2s. c om * @return a {@link ListenableFuture} that will run the supplied AsyncFunction when a parser * is available. */ public <T> ListenableFuture<T> leaseParser(final Cell cell, final AsyncFunction<P, T> withParser, ListeningExecutorService executorService) { Preconditions.checkState(!closed.get()); final ListenableFuture<P> obtainedParser = obtainParser(cell); ListenableFuture<T> futureWork = Futures.transformAsync(obtainedParser, new AsyncFunction<P, T>() { @Override public ListenableFuture<T> apply(P input) throws Exception { try { return withParser.apply(input); } finally { returnParser(cell, input); } } }, executorService); return futureWork; }
From source file:com.orangerhymelabs.helenus.cassandra.view.ViewService.java
public ListenableFuture<View> update(View view) { ListenableFuture<Boolean> tableFuture = tables.exists(view.databaseName(), view.tableName()); return Futures.transformAsync(tableFuture, new AsyncFunction<Boolean, View>() { @Override//w ww.j a va2s.c o m public ListenableFuture<View> apply(Boolean exists) throws Exception { if (exists) { try { ValidationEngine.validateAndThrow(view); return views.update(view); } catch (ValidationException e) { return Futures.immediateFailedFuture(e); } } else { return Futures.immediateFailedFuture( new ItemNotFoundException("Database not found: " + view.databaseName())); } } }, MoreExecutors.directExecutor()); }
From source file:com.orangerhymelabs.helenus.cassandra.table.TableService.java
public ListenableFuture<List<Table>> readAll(String database, Object... parms) { ListenableFuture<Boolean> dbFuture = databases.exists(database); return Futures.transformAsync(dbFuture, new AsyncFunction<Boolean, List<Table>>() { @Override//from ww w.j a v a 2 s. com public ListenableFuture<List<Table>> apply(Boolean exists) throws Exception { if (exists) { return tables.readAll(parms); } else { return Futures .immediateFailedFuture(new ItemNotFoundException("Database not found: " + database)); } } }, MoreExecutors.directExecutor()); }
From source file:org.glowroot.central.util.MoreFutures.java
public static ListenableFuture<?> rollupAsync(Collection<ListenableFuture<ResultSet>> futures, Executor asyncExecutor, DoRollup function) { return transformAsync(Futures.allAsList(futures), asyncExecutor, new AsyncFunction<List<ResultSet>, /*@Nullable*/ Object>() { @Override/*from w ww.j a v a2 s . c o m*/ @SuppressWarnings("unchecked") public ListenableFuture</*@Nullable*/ Object> apply(List<ResultSet> list) throws Exception { List<Row> rows = new ArrayList<>(); for (ResultSet results : list) { rows.addAll(results.all()); } if (rows.isEmpty()) { return Futures.immediateFuture(null); } return (ListenableFuture</*@Nullable*/ Object>) function.execute(rows); } }); }
From source file:io.v.v23.syncbase.nosql.DatabaseImpl.java
@Override public ListenableFuture<QueryResults> exec(VContext ctx, String query) { final ClientRecvStream<List<VdlAny>, Void> stream = client.exec(ctx, getSchemaVersion(), query); return Futures.transform(stream.recv(), new AsyncFunction<List<VdlAny>, QueryResults>() { @Override/* w w w . ja v a 2 s .c o m*/ public ListenableFuture<QueryResults> apply(List<VdlAny> columnNames) throws Exception { return Futures.immediateFuture((QueryResults) new QueryResultsImpl(columnNames, stream)); } }); }
From source file:org.robotninjas.util.examples.FunctionComposerExample.java
AsyncFunction<File, File> copyFile(final String name, final String extension) { return new AsyncFunction<File, File>() { @Override/*from w w w . jav a 2 s. c o m*/ public ListenableFuture<File> apply(File input) throws Exception { System.out.println("6 " + name); return immediateFuture(new File("copy")); } }; }