spring-cloud-stream

问题 Test Class:- @RunWith(SpringRunner.class) @SpringBootTest(classes = { WebsocketSourceConfiguration.class, WebSocketSourceIntegrationTests.class }, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, properties = { "websocket.path=/some_websocket_path", "websocket.allowedOrigins=*", "spring.cloud.stream.default-binder=kafka" }) public class WebSocketSourceIntegrationTests { private String port = "8080"; @Test public void testWebSocketStreamSource() throws IOException,

问题 Currently I'm using SCS with almost default configuration for sending and receiving message between microservices. Somehow I've read this https://www.confluent.io/blog/enabling-exactly-kafka-streams and wonder that it is gonna works or not if we just put the property called "processing.guarantee" with value "exactly-once" there through properties in Spring boot application ? 回答1: In the context of your question you should look at Spring Cloud Stream as just a delegate between target system (e

问题 I am trying to configure as Middleware for a Spring Integration application. here is application.yml file: spring: application: name: ${vcap.application.name:} cloud: stream: bindings: myOutput: destination: myInput default-binder: rabbit The error I get is this: nested exception is java.lang.IllegalStateException: Unknown binder configuration: rabbit any ideas how to correctly configure rabbit for sprint integration. The project is divided into multiple modules, I was given this code form a

问题 I'm trying to create a application-level error handler for failures during the processing inside SCS application using Kafka as a message broker. I know that SCS already provides the DLQ functionality, but in my case I want to wrap failed messages with a custom wrapper type (providing the failure context (source, cause etc.)) In https://github.com/qabbasi/Spring-Cloud-Stream-DLQ-Error-Handling you can see two approaches for this scenario: one is using SCS and the other one directly Spring

问题 I have a topic with multiple partitions in my stream processor i just wanted to stream that from one partition, and could nto figure out how to configure this spring.cloud.stream.kafka.streams.bindings.input.consumer.application-id=s-processor spring.cloud.stream.bindings.input.destination=uinput spring.cloud.stream.bindings.input.group=r-processor spring.cloud.stream.bindings.input.contentType=application/java-serialized-object spring.cloud.stream.bindings.input.consumer.header-mode=raw

问题 The documentation for the Spring Cloud Stream Starter Apps for the RabbitMQ Source app lists several possible content types, each with a different resulting type for the output payload. However, it doesn't say how to choose which one you want to use. I'm deploying a Spring Cloud Data Flow connecting the Rabbit source to a Log sink, and all I get is the byte array. Even when I explicitly set the content type to "text/plain" in the Rabbit message's header, it shows up in the log sink as a byte

问题 The documentation for the Spring Cloud Stream Starter Apps for the RabbitMQ Source app lists several possible content types, each with a different resulting type for the output payload. However, it doesn't say how to choose which one you want to use. I'm deploying a Spring Cloud Data Flow connecting the Rabbit source to a Log sink, and all I get is the byte array. Even when I explicitly set the content type to "text/plain" in the Rabbit message's header, it shows up in the log sink as a byte

问题 I am using spring cloud stream. I have two channel. one is use kafka cluster1, one is use cluster2. config is like. spring.cloud.stream.default-binder=kafka spring.cloud.stream.binders.kafka.type=kafka spring.cloud.stream.binders.kafka.environment.spring.cloud.stream.kafka.binder.brokers=xxxx spring.cloud.stream.kafka.binder.auto-add-partitions=false spring.cloud.stream.kafka.binder.auto-create-topics=false spring.cloud.stream.bindings.channel1-input.destination=top1 spring.cloud.stream

问题 I have an application that gets messages from Kafka and calls a target system to update a legacy Oracle DB. I want to enable a scenario where if the target system is down, to leave the messages on Kafka bus and not process them for a given period of time. I was thinking of some Circuit-breaker Hystrix-based solution, but I can't find any mechanism to tell Spring Cloud Stream to "stop" the event listening. The only other alternative I can think of is if the circuit breaker is open, to transfer

问题 Based on the documentation for Spring Cloud Data Flow (SCDF) only properties that are prefixed by either "deployed." or "app." are considered when deploying an application (be it a source, processor or sink) as part of a stream. However, I've noticed that besides the prefix, all the properties must be provided as "strings", no matter what their original type is; otherwise, they are simply discarded by SCDF as per this line of code: propertiesToUse = DeploymentPropertiesUtils.convert(props);