Examples with FastSubscriber com.datatorrent.stram.stream.FastSubscriber used on opensource projects

Example 1 with FastSubscriber

use of com.datatorrent.stram.stream.FastSubscriber in project apex-core by apache.

the class StreamingContainer method deployInputStreams.

@SuppressWarnings("unchecked")
private void deployInputStreams(List<OperatorDeployInfo> operatorList, HashMap<String, ComponentContextPair<Stream, StreamContext>> newStreams) throws UnknownHostException {
    /*
     * collect any input operators along with their smallest window id,
     * those are subsequently used to setup the window generator
     */
    ArrayList<OperatorDeployInfo> inputNodes = new ArrayList<>();
    long smallestCheckpointedWindowId = Long.MAX_VALUE;
    //a simple map which maps the oio node to it's the node which owns the thread.
    Map<Integer, Integer> oioNodes = new ConcurrentHashMap<>();
    /*
     * Hook up all the downstream ports. There are 2 places where we deal with more than 1
     * downstream ports. The first one follows immediately for WindowGenerator. The second
     * case is when source for the input port of some node in this container is in another
     * container. So we need to create the stream. We need to track this stream along with
     * other streams,and many such streams may exist, we hash them against buffer server
     * info as we did for outputs but throw in the sinkid in the mix as well.
     */
    for (OperatorDeployInfo ndi : operatorList) {
        if (ndi.inputs == null || ndi.inputs.isEmpty()) {
            /*
         * This has to be InputNode, so let's hook the WindowGenerator to it.
         * A node which does not take any input cannot exist in the DAG since it would be completely
         * unaware of the windows. So for that reason, AbstractInputNode allows Component.INPUT port.
         */
            inputNodes.add(ndi);
            /*
         * When we activate the window Generator, we plan to activate it only from required windowId.
         */
            ndi.checkpoint = getFinishedCheckpoint(ndi);
            if (ndi.checkpoint.windowId < smallestCheckpointedWindowId) {
                smallestCheckpointedWindowId = ndi.checkpoint.windowId;
            }
        } else {
            Node<?> node = nodes.get(ndi.id);
            for (OperatorDeployInfo.InputDeployInfo nidi : ndi.inputs) {
                if (nidi.streamCodecs.size() != 1) {
                    throw new IllegalStateException("Only one input codec configuration should be present");
                }
                Map.Entry<Integer, StreamCodec<?>> entry = nidi.streamCodecs.entrySet().iterator().next();
                Integer streamCodecIdentifier = entry.getKey();
                StreamCodec<?> streamCodec = entry.getValue();
                String sourceIdentifier = Integer.toString(nidi.sourceNodeId).concat(Component.CONCAT_SEPARATOR).concat(nidi.sourcePortName);
                String sinkIdentifier = Integer.toString(ndi.id).concat(Component.CONCAT_SEPARATOR).concat(nidi.portName);
                int queueCapacity = getValue(PortContext.QUEUE_CAPACITY, nidi, ndi);
                Checkpoint checkpoint = getFinishedCheckpoint(ndi);
                ComponentContextPair<Stream, StreamContext> pair = streams.get(sourceIdentifier);
                if (pair == null) {
                    pair = newStreams.get(sourceIdentifier);
                }
                if (pair == null) {
                    /*
             * We connect to the buffer server for the input on this port.
             * We have already placed all the output streams for all the operators in this container.
             * Yet, there is no stream which can source this port so it has to come from the buffer
             * server, so let's make a connection to it.
             */
                    assert (nidi.locality != Locality.CONTAINER_LOCAL && nidi.locality != Locality.THREAD_LOCAL);
                    StreamContext context = new StreamContext(nidi.declaredStreamId);
                    context.setBufferServerAddress(InetSocketAddress.createUnresolved(nidi.bufferServerHost, nidi.bufferServerPort));
                    InetAddress inetAddress = context.getBufferServerAddress().getAddress();
                    if (inetAddress != null && NetUtils.isLocalAddress(inetAddress)) {
                        context.setBufferServerAddress(new InetSocketAddress(InetAddress.getByName(null), nidi.bufferServerPort));
                    }
                    context.put(StreamContext.BUFFER_SERVER_TOKEN, nidi.bufferServerToken);
                    String connIdentifier = sourceIdentifier + Component.CONCAT_SEPARATOR + streamCodecIdentifier;
                    context.setPortId(nidi.portName);
                    context.put(StreamContext.CODEC, streamCodec);
                    context.put(StreamContext.EVENT_LOOP, eventloop);
                    context.setPartitions(nidi.partitionMask, nidi.partitionKeys);
                    //context.setSourceId(sourceIdentifier);
                    context.setSourceId(connIdentifier);
                    context.setSinkId(sinkIdentifier);
                    context.setFinishedWindowId(checkpoint.windowId);
                    BufferServerSubscriber subscriber = fastPublisherSubscriber ? new FastSubscriber("tcp://".concat(nidi.bufferServerHost).concat(":").concat(String.valueOf(nidi.bufferServerPort)).concat("/").concat(connIdentifier), queueCapacity) : new BufferServerSubscriber("tcp://".concat(nidi.bufferServerHost).concat(":").concat(String.valueOf(nidi.bufferServerPort)).concat("/").concat(connIdentifier), queueCapacity);
                    if (streamCodec instanceof StreamCodecWrapperForPersistance) {
                        subscriber.acquireReservoirForPersistStream(sinkIdentifier, queueCapacity, streamCodec);
                    }
                    SweepableReservoir reservoir = subscriber.acquireReservoir(sinkIdentifier, queueCapacity);
                    if (checkpoint.windowId >= 0) {
                        node.connectInputPort(nidi.portName, new WindowIdActivatedReservoir(sinkIdentifier, reservoir, checkpoint.windowId));
                    }
                    node.connectInputPort(nidi.portName, reservoir);
                    newStreams.put(sinkIdentifier, new ComponentContextPair<Stream, StreamContext>(subscriber, context));
                    logger.debug("put input stream {} against key {}", subscriber, sinkIdentifier);
                } else {
                    assert (nidi.locality == Locality.CONTAINER_LOCAL || nidi.locality == Locality.THREAD_LOCAL);
                    /* we are still dealing with the MuxStream originating at the output of the source port */
                    StreamContext inlineContext = new StreamContext(nidi.declaredStreamId);
                    inlineContext.setSourceId(sourceIdentifier);
                    inlineContext.setSinkId(sinkIdentifier);
                    Stream stream;
                    SweepableReservoir reservoir;
                    switch(nidi.locality) {
                        case CONTAINER_LOCAL:
                            int outputQueueCapacity = getOutputQueueCapacity(operatorList, nidi.sourceNodeId, nidi.sourcePortName);
                            if (outputQueueCapacity > queueCapacity) {
                                queueCapacity = outputQueueCapacity;
                            }
                            stream = new InlineStream(queueCapacity);
                            reservoir = ((InlineStream) stream).getReservoir();
                            if (checkpoint.windowId >= 0) {
                                node.connectInputPort(nidi.portName, new WindowIdActivatedReservoir(sinkIdentifier, reservoir, checkpoint.windowId));
                            }
                            break;
                        case THREAD_LOCAL:
                            stream = new OiOStream();
                            reservoir = ((OiOStream) stream).getReservoir();
                            ((OiOStream.OiOReservoir) reservoir).setControlSink(((OiONode) node).getControlSink(reservoir));
                            oioNodes.put(ndi.id, nidi.sourceNodeId);
                            break;
                        default:
                            throw new IllegalStateException("Locality can be either ContainerLocal or ThreadLocal");
                    }
                    node.connectInputPort(nidi.portName, reservoir);
                    newStreams.put(sinkIdentifier, new ComponentContextPair<>(stream, inlineContext));
                    if (!(pair.component instanceof Stream.MultiSinkCapableStream)) {
                        String originalSinkId = pair.context.getSinkId();
                        /* we come here only if we are trying to augment the dag */
                        StreamContext muxContext = new StreamContext(nidi.declaredStreamId);
                        muxContext.setSourceId(sourceIdentifier);
                        muxContext.setFinishedWindowId(checkpoint.windowId);
                        muxContext.setSinkId(originalSinkId);
                        MuxStream muxStream = new MuxStream();
                        muxStream.setSink(originalSinkId, pair.component);
                        streams.put(originalSinkId, pair);
                        Node<?> sourceNode = nodes.get(nidi.sourceNodeId);
                        sourceNode.connectOutputPort(nidi.sourcePortName, muxStream);
                        newStreams.put(sourceIdentifier, pair = new ComponentContextPair<Stream, StreamContext>(muxStream, muxContext));
                    }
                    /* here everything should be multisink capable */
                    if (streamCodec instanceof StreamCodecWrapperForPersistance) {
                        PartitionAwareSinkForPersistence pas;
                        if (nidi.partitionKeys == null) {
                            pas = new PartitionAwareSinkForPersistence((StreamCodecWrapperForPersistance<Object>) streamCodec, nidi.partitionMask, stream);
                        } else {
                            pas = new PartitionAwareSinkForPersistence((StreamCodecWrapperForPersistance<Object>) streamCodec, nidi.partitionKeys, nidi.partitionMask, stream);
                        }
                        ((Stream.MultiSinkCapableStream) pair.component).setSink(sinkIdentifier, pas);
                    } else if (nidi.partitionKeys == null || nidi.partitionKeys.isEmpty()) {
                        ((Stream.MultiSinkCapableStream) pair.component).setSink(sinkIdentifier, stream);
                    } else {
                        /*
               * generally speaking we do not have partitions on the inline streams so the control should not
               * come here but if it comes, then we are ready to handle it using the partition aware streams.
               */
                        PartitionAwareSink<Object> pas = new PartitionAwareSink<>(streamCodec == null ? nonSerializingStreamCodec : (StreamCodec<Object>) streamCodec, nidi.partitionKeys, nidi.partitionMask, stream);
                        ((Stream.MultiSinkCapableStream) pair.component).setSink(sinkIdentifier, pas);
                    }
                    String streamSinkId = pair.context.getSinkId();
                    if (streamSinkId == null) {
                        pair.context.setSinkId(sinkIdentifier);
                    } else {
                        pair.context.setSinkId(streamSinkId.concat(", ").concat(sinkIdentifier));
                    }
                }
            }
        }
    }
    setupOiOGroups(oioNodes);
    if (!inputNodes.isEmpty()) {
        WindowGenerator windowGenerator = setupWindowGenerator(smallestCheckpointedWindowId);
        for (OperatorDeployInfo ndi : inputNodes) {
            generators.put(ndi.id, windowGenerator);
            Node<?> node = nodes.get(ndi.id);
            SweepableReservoir reservoir = windowGenerator.acquireReservoir(String.valueOf(ndi.id), 1024);
            if (ndi.checkpoint.windowId >= 0) {
                node.connectInputPort(Node.INPUT, new WindowIdActivatedReservoir(Integer.toString(ndi.id), reservoir, ndi.checkpoint.windowId));
            }
            node.connectInputPort(Node.INPUT, reservoir);
        }
    }
}