Examples with Future org.apache.flink.shaded.netty4.io.netty.util.concurrent.Future used on opensource projects

Example 11 with Future

use of org.apache.flink.shaded.netty4.io.netty.util.concurrent.Future in project redisson by redisson.

the class RedissonRemoteService method subscribe.

private <T> void subscribe(final Class<T> remoteInterface, final RBlockingQueue<RemoteServiceRequest> requestQueue, final ExecutorService executor) {
    RFuture<RemoteServiceRequest> take = requestQueue.takeAsync();
    take.addListener(new FutureListener<RemoteServiceRequest>() {

        @Override
        public void operationComplete(Future<RemoteServiceRequest> future) throws Exception {
            if (!future.isSuccess()) {
                if (future.cause() instanceof RedissonShutdownException) {
                    return;
                }
                log.error("Can't process the remote service request.", future.cause());
                // re-subscribe after a failed takeAsync
                subscribe(remoteInterface, requestQueue, executor);
                return;
            }
            // do not subscribe now, see
            // https://github.com/mrniko/redisson/issues/493
            // subscribe(remoteInterface, requestQueue);
            final RemoteServiceRequest request = future.getNow();
            // check the ack only if expected
            if (request.getOptions().isAckExpected() && System.currentTimeMillis() - request.getDate() > request.getOptions().getAckTimeoutInMillis()) {
                log.debug("request: {} has been skipped due to ackTimeout");
                // re-subscribe after a skipped ackTimeout
                subscribe(remoteInterface, requestQueue, executor);
                return;
            }
            final String responseName = getResponseQueueName(remoteInterface, request.getRequestId());
            // send the ack only if expected
            if (request.getOptions().isAckExpected()) {
                String ackName = getAckName(remoteInterface, request.getRequestId());
                RFuture<Boolean> ackClientsFuture = commandExecutor.evalWriteAsync(responseName, LongCodec.INSTANCE, RedisCommands.EVAL_BOOLEAN, "if redis.call('setnx', KEYS[1], 1) == 1 then " + "redis.call('pexpire', KEYS[1], ARGV[2]);" + "redis.call('rpush', KEYS[2], ARGV[1]);" + "redis.call('pexpire', KEYS[2], ARGV[2]);" + "return 1;" + "end;" + "return 0;", Arrays.<Object>asList(ackName, responseName), encode(new RemoteServiceAck()), request.getOptions().getAckTimeoutInMillis());
                ackClientsFuture.addListener(new FutureListener<Boolean>() {

                    @Override
                    public void operationComplete(Future<Boolean> future) throws Exception {
                        if (!future.isSuccess()) {
                            log.error("Can't send ack for request: " + request, future.cause());
                            if (future.cause() instanceof RedissonShutdownException) {
                                return;
                            }
                            // re-subscribe after a failed send (ack)
                            subscribe(remoteInterface, requestQueue, executor);
                            return;
                        }
                        if (!future.getNow()) {
                            subscribe(remoteInterface, requestQueue, executor);
                            return;
                        }
                        executeMethod(remoteInterface, requestQueue, executor, request);
                    }
                });
            } else {
                executeMethod(remoteInterface, requestQueue, executor, request);
            }
        }
    });
}

Example 12 with Future

use of org.apache.flink.shaded.netty4.io.netty.util.concurrent.Future in project netty by netty.

the class SslHandlerTest method testCloseNotify.

private static void testCloseNotify(SslProvider provider, final long closeNotifyReadTimeout, final boolean timeout) throws Exception {
    SelfSignedCertificate ssc = new SelfSignedCertificate();
    final SslContext sslServerCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).sslProvider(provider).build();
    final SslContext sslClientCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).sslProvider(provider).build();
    EventLoopGroup group = new NioEventLoopGroup();
    Channel sc = null;
    Channel cc = null;
    try {
        final Promise<Channel> clientPromise = group.next().newPromise();
        final Promise<Channel> serverPromise = group.next().newPromise();
        sc = new ServerBootstrap().group(group).channel(NioServerSocketChannel.class).childHandler(new ChannelInitializer<Channel>() {

            @Override
            protected void initChannel(Channel ch) throws Exception {
                SslHandler handler = sslServerCtx.newHandler(ch.alloc());
                handler.setCloseNotifyReadTimeoutMillis(closeNotifyReadTimeout);
                handler.sslCloseFuture().addListener(new PromiseNotifier<Channel, Future<Channel>>(serverPromise));
                handler.handshakeFuture().addListener(new FutureListener<Channel>() {

                    @Override
                    public void operationComplete(Future<Channel> future) {
                        if (!future.isSuccess()) {
                            // Something bad happened during handshake fail the promise!
                            serverPromise.tryFailure(future.cause());
                        }
                    }
                });
                ch.pipeline().addLast(handler);
            }
        }).bind(new InetSocketAddress(0)).syncUninterruptibly().channel();
        cc = new Bootstrap().group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<Channel>() {

            @Override
            protected void initChannel(Channel ch) throws Exception {
                final AtomicBoolean closeSent = new AtomicBoolean();
                if (timeout) {
                    ch.pipeline().addFirst(new ChannelInboundHandlerAdapter() {

                        @Override
                        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                            if (closeSent.get()) {
                                // Drop data on the floor so we will get a timeout while waiting for the
                                // close_notify.
                                ReferenceCountUtil.release(msg);
                            } else {
                                super.channelRead(ctx, msg);
                            }
                        }
                    });
                }
                SslHandler handler = sslClientCtx.newHandler(ch.alloc());
                handler.setCloseNotifyReadTimeoutMillis(closeNotifyReadTimeout);
                handler.sslCloseFuture().addListener(new PromiseNotifier<Channel, Future<Channel>>(clientPromise));
                handler.handshakeFuture().addListener(new FutureListener<Channel>() {

                    @Override
                    public void operationComplete(Future<Channel> future) {
                        if (future.isSuccess()) {
                            closeSent.compareAndSet(false, true);
                            future.getNow().close();
                        } else {
                            // Something bad happened during handshake fail the promise!
                            clientPromise.tryFailure(future.cause());
                        }
                    }
                });
                ch.pipeline().addLast(handler);
            }
        }).connect(sc.localAddress()).syncUninterruptibly().channel();
        serverPromise.awaitUninterruptibly();
        clientPromise.awaitUninterruptibly();
        // Server always received the close_notify as the client triggers the close sequence.
        assertTrue(serverPromise.isSuccess());
        // Depending on if we wait for the response or not the promise will be failed or not.
        if (closeNotifyReadTimeout > 0 && !timeout) {
            assertTrue(clientPromise.isSuccess());
        } else {
            assertFalse(clientPromise.isSuccess());
        }
    } finally {
        if (cc != null) {
            cc.close().syncUninterruptibly();
        }
        if (sc != null) {
            sc.close().syncUninterruptibly();
        }
        group.shutdownGracefully();
        ReferenceCountUtil.release(sslServerCtx);
        ReferenceCountUtil.release(sslClientCtx);
    }
}

Example 13 with Future

use of org.apache.flink.shaded.netty4.io.netty.util.concurrent.Future in project redisson by redisson.

the class ConnectionPool method scheduleCheck.

private void scheduleCheck(final ClientConnectionsEntry entry) {
    connectionManager.getConnectionEventsHub().fireDisconnect(entry.getClient().getAddr());
    connectionManager.newTimeout(new TimerTask() {

        @Override
        public void run(Timeout timeout) throws Exception {
            if (entry.getFreezeReason() != FreezeReason.RECONNECT || !entry.isFreezed()) {
                return;
            }
            RFuture<RedisConnection> connectionFuture = entry.getClient().connectAsync();
            connectionFuture.addListener(new FutureListener<RedisConnection>() {

                @Override
                public void operationComplete(Future<RedisConnection> future) throws Exception {
                    if (entry.getFreezeReason() != FreezeReason.RECONNECT || !entry.isFreezed()) {
                        return;
                    }
                    if (!future.isSuccess()) {
                        scheduleCheck(entry);
                        return;
                    }
                    final RedisConnection c = future.getNow();
                    if (!c.isActive()) {
                        c.closeAsync();
                        scheduleCheck(entry);
                        return;
                    }
                    final FutureListener<String> pingListener = new FutureListener<String>() {

                        @Override
                        public void operationComplete(Future<String> future) throws Exception {
                            try {
                                if (entry.getFreezeReason() != FreezeReason.RECONNECT || !entry.isFreezed()) {
                                    return;
                                }
                                if (future.isSuccess() && "PONG".equals(future.getNow())) {
                                    entry.resetFailedAttempts();
                                    RPromise<Void> promise = connectionManager.newPromise();
                                    promise.addListener(new FutureListener<Void>() {

                                        @Override
                                        public void operationComplete(Future<Void> future) throws Exception {
                                            if (entry.getNodeType() == NodeType.SLAVE) {
                                                masterSlaveEntry.slaveUp(entry.getClient().getAddr().getHostName(), entry.getClient().getAddr().getPort(), FreezeReason.RECONNECT);
                                                log.info("slave {} successfully reconnected", entry.getClient().getAddr());
                                            } else {
                                                synchronized (entry) {
                                                    if (entry.getFreezeReason() == FreezeReason.RECONNECT) {
                                                        entry.setFreezed(false);
                                                        entry.setFreezeReason(null);
                                                        log.info("host {} successfully reconnected", entry.getClient().getAddr());
                                                    }
                                                }
                                            }
                                        }
                                    });
                                    initConnections(entry, promise, false);
                                } else {
                                    scheduleCheck(entry);
                                }
                            } finally {
                                c.closeAsync();
                            }
                        }
                    };
                    if (entry.getConfig().getPassword() != null) {
                        RFuture<Void> temp = c.async(RedisCommands.AUTH, config.getPassword());
                        FutureListener<Void> listener = new FutureListener<Void>() {

                            @Override
                            public void operationComplete(Future<Void> future) throws Exception {
                                ping(c, pingListener);
                            }
                        };
                        temp.addListener(listener);
                    } else {
                        ping(c, pingListener);
                    }
                }
            });
        }
    }, config.getReconnectionTimeout(), TimeUnit.MILLISECONDS);
}

Example 14 with Future

use of org.apache.flink.shaded.netty4.io.netty.util.concurrent.Future in project redisson by redisson.

the class CommandAsyncService method evalAllAsync.

public <T, R> RFuture<R> evalAllAsync(boolean readOnlyMode, RedisCommand<T> command, final SlotCallback<T, R> callback, String script, List<Object> keys, Object... params) {
    final RPromise<R> mainPromise = connectionManager.newPromise();
    final Set<MasterSlaveEntry> entries = connectionManager.getEntrySet();
    final AtomicInteger counter = new AtomicInteger(entries.size());
    FutureListener<T> listener = new FutureListener<T>() {

        @Override
        public void operationComplete(Future<T> future) throws Exception {
            if (!future.isSuccess()) {
                mainPromise.tryFailure(future.cause());
                return;
            }
            callback.onSlotResult(future.getNow());
            if (counter.decrementAndGet() == 0 && !mainPromise.isDone()) {
                mainPromise.trySuccess(callback.onFinish());
            }
        }
    };
    List<Object> args = new ArrayList<Object>(2 + keys.size() + params.length);
    args.add(script);
    args.add(keys.size());
    args.addAll(keys);
    args.addAll(Arrays.asList(params));
    for (MasterSlaveEntry entry : entries) {
        RPromise<T> promise = connectionManager.newPromise();
        promise.addListener(listener);
        async(readOnlyMode, new NodeSource(entry), connectionManager.getCodec(), command, args.toArray(), promise, 0);
    }
    return mainPromise;
}

Example 15 with Future

use of org.apache.flink.shaded.netty4.io.netty.util.concurrent.Future in project redisson by redisson.

the class CommandAsyncService method handleBlockingOperations.

private <R, V> void handleBlockingOperations(final AsyncDetails<V, R> details, final RedisConnection connection, Long popTimeout) {
    final FutureListener<Boolean> listener = new FutureListener<Boolean>() {

        @Override
        public void operationComplete(Future<Boolean> future) throws Exception {
            details.getMainPromise().tryFailure(new RedissonShutdownException("Redisson is shutdown"));
        }
    };
    final AtomicBoolean canceledByScheduler = new AtomicBoolean();
    final Timeout scheduledFuture;
    if (popTimeout != 0) {
        // to handle cases when connection has been lost
        final Channel orignalChannel = connection.getChannel();
        scheduledFuture = connectionManager.newTimeout(new TimerTask() {

            @Override
            public void run(Timeout timeout) throws Exception {
                // and connection is still active
                if (orignalChannel == connection.getChannel() && connection.isActive()) {
                    return;
                }
                canceledByScheduler.set(true);
                details.getAttemptPromise().trySuccess(null);
            }
        }, popTimeout, TimeUnit.SECONDS);
    } else {
        scheduledFuture = null;
    }
    details.getMainPromise().addListener(new FutureListener<R>() {

        @Override
        public void operationComplete(Future<R> future) throws Exception {
            if (scheduledFuture != null) {
                scheduledFuture.cancel();
            }
            synchronized (listener) {
                connectionManager.getShutdownPromise().removeListener(listener);
            }
            // handling cancel operation for commands from skipTimeout collection
            if ((future.isCancelled() && details.getAttemptPromise().cancel(true)) || canceledByScheduler.get()) {
                connection.forceFastReconnectAsync();
                return;
            }
            if (future.cause() instanceof RedissonShutdownException) {
                details.getAttemptPromise().tryFailure(future.cause());
            }
        }
    });
    synchronized (listener) {
        if (!details.getMainPromise().isDone()) {
            connectionManager.getShutdownPromise().addListener(listener);
        }
    }
}