private void attachConnection(ChannelConnection connection, Publisher publisher, ClassLoader loader) throws Fabric3Exception { EventStream stream = connection.getEventStream(); DataType dataType = getEventType(stream); EventStreamHandler transformer; if (dataType.getType().equals(byte[][].class)) { // multi-frame data transformer = handlerFactory.createHandler(dataType, TWO_DIMENSIONAL_BYTES, Collections.<Class<?>>emptyList(), loader); } else { // single frame data transformer = handlerFactory.createHandler(dataType, BYTES, Collections.<Class<?>>emptyList(), loader); } stream.addHandler(transformer); stream.addHandler(new PublisherHandler(publisher)); }
public void attach(PhysicalConnectionSource source, NonManagedConnectionTarget target, ChannelConnection connection) { if (target.isDirectConnection()) { target.setCloseable(connection.getCloseable()); target.setProxy(connection.getDirectConnection().get().get()); } else { Consumer<Object> consumer = Cast.cast(target.getConsumer()); EventStream stream = connection.getEventStream(); Class<?> type = stream.getEventType(); if (!Object.class.equals(type)) { // add a filter if the event type is not Object stream.addHandler(new FilterHandler(type)); } stream.addHandler((event, endOfBatch) -> consumer.accept(event)); } }
private void addTypeTransformer(PhysicalChannelConnection connection, EventStream stream, ClassLoader loader) { if (transformerHandlerFactory == null) { return; // bootstrap } List<DataType> sourceTypes = connection.getSource().getDataTypes(); List<DataType> targetTypes = connection.getTarget().getDataTypes(); if (sourceTypes.isEmpty() || targetTypes.isEmpty()) { return; } if (sourceTypes.size() > 1 || targetTypes.size() > 1) { // for now, only support one data type throw new Fabric3Exception("Multi-type events are not supported"); } DataType sourceType = sourceTypes.get(0); DataType targetType = targetTypes.get(0); if (sourceType.equals(targetType)) { return; } List<Class<?>> eventTypes = Collections.singletonList(stream.getEventType()); EventStreamHandler handler = transformerHandlerFactory.createHandler(sourceType, targetType, eventTypes, loader); stream.addHandler(handler); }
public void attach(PhysicalConnectionSource source, NonManagedConnectionTarget target, ChannelConnection connection) { if (target.isDirectConnection()) { target.setCloseable(connection.getCloseable()); target.setProxy(connection.getDirectConnection().get().get()); } else { Consumer<Object> consumer = Cast.cast(target.getConsumer()); EventStream stream = connection.getEventStream(); Class<?> type = stream.getEventType(); if (!Object.class.equals(type)) { // add a filter if the event type is not Object stream.addHandler(new FilterHandler(type)); } stream.addHandler((event, endOfBatch) -> consumer.accept(event)); } }
private void addTypeTransformer(PhysicalChannelConnection connection, EventStream stream, ClassLoader loader) { if (transformerHandlerFactory == null) { return; // bootstrap } List<DataType> sourceTypes = connection.getSource().getDataTypes(); List<DataType> targetTypes = connection.getTarget().getDataTypes(); if (sourceTypes.isEmpty() || targetTypes.isEmpty()) { return; } if (sourceTypes.size() > 1 || targetTypes.size() > 1) { // for now, only support one data type throw new Fabric3Exception("Multi-type events are not supported"); } DataType sourceType = sourceTypes.get(0); DataType targetType = targetTypes.get(0); if (sourceType.equals(targetType)) { return; } List<Class<?>> eventTypes = Collections.singletonList(stream.getEventType()); EventStreamHandler handler = transformerHandlerFactory.createHandler(sourceType, targetType, eventTypes, loader); stream.addHandler(handler); }
public void attach(PhysicalConnectionSource source, SystemConnectionTarget target, ChannelConnection connection) { URI targetUri = target.getUri(); URI targetName = UriHelper.getDefragmentedName(targetUri); SystemComponent component = (SystemComponent) manager.getComponent(targetName); if (component == null) { throw new Fabric3Exception("Target component not found: " + targetName); } ClassLoader loader = target.getClassLoader(); Method method = (Method) target.getConsumerObject(); // if the object is not a method, it is a programming error ConsumerInvoker invoker = reflectionFactory.createConsumerInvoker(method); EventStream stream = connection.getEventStream(); Class<?> type = connection.getEventStream().getEventType(); if (!Object.class.equals(type)) { // add a filter if the event type is not Object stream.addHandler(new FilterHandler(type)); } InvokerEventStreamHandler handler = new InvokerEventStreamHandler(invoker, component, loader); stream.addHandler(handler); }
@SuppressWarnings("unchecked") public void attach(PhysicalConnectionSource source, NATSConnectionTarget target, ChannelConnection connection) { Nats nats = connectionManager.getNats(target); if (!source.isDirectConnection()) { String topic = target.getTopic() != null ? target.getTopic() : target.getDefaultTopic(); String serializerName = target.getData().getSerializer(); Function<Object, String> serializer = serializerName != null ? InstanceResolver.getInstance(serializerName, info, cm) : null; connection.getEventStream().addHandler((event, batch) -> { String serialized = serializer != null ? serializer.apply(event) : event.toString(); nats.publish(topic, serialized); }); connection.setCloseable(() -> connectionManager.release(target.getChannelUri(), topic)); } }
public void attach(PhysicalConnectionSource source, SpringConnectionTarget target, ChannelConnection connection) { URI targetUri = target.getUri(); SpringComponent component = (SpringComponent) manager.getComponent(targetUri); if (component == null) { throw new Fabric3Exception("Target component not found: " + targetUri); } String beanName = target.getBeanName(); JavaType type = target.getType(); String consumerName = target.getMethodName(); SpringEventStreamHandler handler = new SpringEventStreamHandler(beanName, consumerName, type, component); EventStream stream = connection.getEventStream(); stream.addHandler(handler); }
public void attach(PhysicalConnectionSource source, SpringConnectionTarget target, ChannelConnection connection) { URI targetUri = target.getUri(); SpringComponent component = (SpringComponent) manager.getComponent(targetUri); if (component == null) { throw new Fabric3Exception("Target component not found: " + targetUri); } String beanName = target.getBeanName(); JavaType type = target.getType(); String consumerName = target.getMethodName(); SpringEventStreamHandler handler = new SpringEventStreamHandler(beanName, consumerName, type, component); EventStream stream = connection.getEventStream(); stream.addHandler(handler); }
public void attach(PhysicalConnectionSource source, JavaConnectionTarget target, ChannelConnection connection) { URI targetUri = target.getUri(); URI targetName = UriHelper.getDefragmentedName(targetUri); JavaComponent component = (JavaComponent) manager.getComponent(targetName); if (component == null) { throw new Fabric3Exception("Target component not found: " + targetName); } if (target.isDirectConnection()) { // A direct connection; create a setter that will inject the field, method or ctor param annotated with @Consumer component.setSupplier(target.getInjectable(), connection.getDirectConnection().get()); } else { // Not a direct connection; a consumer method that is invoked and passed an event from the channel via an event stream // Note that a null supplier must be injected in this case as the @Consumer annotation creates an injector for the case where the // method takes a direct connection to the channel. The null supplier forces the injector not to activate since the @Consumer method is used to // receive events and not serve as a setter for the direct connection component.setSupplier(target.getInjectable(), () -> null); ClassLoader loader = target.getClassLoader(); Method method = (Method) target.getConsumerObject(); // if the object is not a method, it is a programming error ConsumerInvoker invoker = reflectionFactory.createConsumerInvoker(method); EventStream stream = connection.getEventStream(); Class<?> type = connection.getEventStream().getEventType(); if (!Object.class.equals(type)) { // add a filter if the event type is not Object stream.addHandler(new FilterHandler(type)); } InvokerEventStreamHandler handler = new InvokerEventStreamHandler(invoker, component, loader); stream.addHandler(handler); } }
public void attach(PhysicalConnectionSource source, JmsConnectionTarget target, ChannelConnection connection) { // resolve the connection factories and destinations JmsBindingMetadata metadata = target.getMetadata(); ConnectionFactoryDefinition connectionFactoryDefinition = metadata.getConnectionFactory(); HeadersDefinition headers = metadata.getHeaders(); boolean persistent = DeliveryMode.PERSISTENT == headers.getDeliveryMode() || headers.getDeliveryMode() == null; ConnectionFactory connectionFactory = resolver.resolve(connectionFactoryDefinition); Destination destinationDefinition = metadata.getDestination(); javax.jms.Destination destination = resolver.resolve(destinationDefinition, connectionFactory); EventStream stream = connection.getEventStream(); JmsEventStreamHandler handler = new JmsEventStreamHandler(destination, connectionFactory, persistent); stream.addHandler(handler); }
public void attach(NATSConnectionSource source, PhysicalConnectionTarget target, ChannelConnection connection) { String topic = source.getTopic() != null ? source.getTopic() : source.getDefaultTopic(); connection.setCloseable(() -> connectionManager.release(source.getChannelUri(), topic)); if (target.isDirectConnection()) { Class<?> type = target.getServiceInterface(); connectionManager.createDirectConsumer(type, source); // create consumer, which will be returned by the direct connection factory } else { String deserializerName = source.getData().getDeserializer(); Function deserializer = deserializerName != null ? InstanceResolver.getInstance(deserializerName, info, cm) : null; connection.getEventStream().addHandler(0, new EventStreamHandler() { private EventStreamHandler next; @SuppressWarnings("unchecked") public void handle(Object message, boolean batch) { Object body = deserializer != null ? deserializer.apply(message) : message; next.handle(body, batch); } public void setNext(EventStreamHandler next) { this.next = next; } public EventStreamHandler getNext() { return next; } }); connectionManager.subscribe(source, connection); } }