spring-integration | Spring Integration provides an extension of the Spring | Application Framework library

Try to set up Spring Boot TCP Server with spring-integration-ip, but when send message to the server always get the error message:

Currently I have a Spring Integration XML file that marshalls Java POJOs to XML using JAXB and then sends them as JMS messages. However, instead of marshalling Java POJOs and sending through JMS I want to send the XML string which will be dynamically generated inside the Java file to JMS in the same integration file below. So I suppose it will probably be done through replacing the existing Marshaller and transformer in the below file for the request but I don't know exactly how.

In short, I would like to know how to send and replace the marshalling of Java POJOs with dynamic XML string.

I research and Found that DOMSource will be the perfect for generating dynamic XML. I am able to do the transform in Java file from DOM to string easily but I cannot do it through Spring Integration. I need to Marshall from String to XML instead of Java Object to XML using the spring integration file below.

I have two applications - the first produces messages using spring-cloud-stream/function with the AWS Kinesis Binder, the second is an application that builds off of spring integration to consume messages. Communicating between the two is not a problem - I can send a message from "stream" and handle it easily in "integration".

When I want to send a custom header, then there is an issue. The header arrives at the consumer as an embedded header using the "New" format (Has an 0xff at the beginning, etc.) - See AbstractMessageChannelBinder#serializeAndEmbedHeadersIfApplicable in spring-cloud-stream.

However, the KinesisMessageDrivenChannelAdapter (spring-integration-aws) does not seem to understand the "new" embedded header form. It uses EmbeddedJsonHeadersMessageMapper (See #toMessage) which cannot "decode" the message. It throws a com.fasterxml.jackson.core.JsonParseException: Unrecognized token 'ÿ': was expecting (JSON String, Number, Array, Object or token 'null', 'true' or 'false') because of the additional information included in the embedded header (0xff and so on).

I need to send the header across the wire (the header is used to route on the other side), so it's not an option to "turn off" headers on the producer. I don't see a way to use the "old" embedded headers.

I'd like to use spring-cloud-stream/function on the producer side - it's awesome. I wish I could redo the consumer, but...

I could write my own embedded header mapper that understands the new format (use EmbeddedHeaderUtils), and wire it into the KinesisMessageDrivenChannelAdapter.

Given the close relationship between spring-cloud-stream and spring-integration, I must be doing something wrong. Does Spring Integration have an OutboundMessageMapper that understands the new embedded form?

Or is there a way to coerce spring cloud stream to use a different embedding strategy?

I could use Spring Integration on the producer side. (sad face).

Any thoughts? Thanks in advance.

I'm new in Spring Integration, I'm trying to get the message from temporary channel.

Reading the documentation there is a temporary channel use by spring. I guess it named NullChannel

I need my gateway returns the value from temporary channel.

http controller -> gateway -> direct channel -> activator 1 -> queue channel -> activator 2

So my activator 2 will put the new value into temporary channel, so the gateway will retrieve the value from temporary channel

I'm migrating a spring boot app to micronaut framework and I'm nearly done with it, the only missing piece is a micronaut alternative to spring-integration. Basically I need to periodically scan a remote sftp server for files and then do some work on them. In my spring boot app I'd just use spring-integration but I'd like to achieve this the micronaut way but I'm yet to find one.

Is there a micronaut specific way to handle files on sftp servers similar to spring-integration? I'd like to avoid doing it "manually" via scheduled jobs if possbile.

Thanks for all the suggestions!

I have a project where I am using Spring Integration where I am connecting to a broker and then publish-subscribe the messages issued to the broker.

When using @EnableAutoConfiguration and @ComponentScan and @Configuration the application runs fine that is using @SpringBootApplication as a whole. But I don't want to use @EnableAutoConfiguration, this is just a POC project to be integrated into a bigger chunk project. Where, if @EnableAutoConfiguration is used may cause issues for other components which are not needed.

So, how can I resolve this issue?

This is just an excerpt from the project and when done should run normally:

I have a Java Spring Boot application which is using the spring-integration-sftp dependency to connect to an SFTP server. I get an error

The authenticity of host 'xxxx' can't be established

and I know this can easily be rid of by setting the sftpSessionFactory.setAllowUnknownKeys(true), but that is not a good practice and I would rather not do that.

I have the below SFTP server's public key fingerprint. How can I use that to safely connect to my SFTP server so that my host is known? What should I additionally set in the sftpSessionFactory?

I'm using spring-integration-zeromq and I'm trying to set up with authentication settings.

I have int-aws:sqs-message-driven-channel-adapter on which if I set the errorChannel, the downstream exceptions go there.

However, when I don't set an errorChannel, the exception does not get logged. It does not go to the errorChannel which is expected. Is there a way, that such exceptions at least get logged? Is there a default errorlogger which can simply log such errors?

UPDATE

Posting XML and DSL config as per the comments. The error is simulated in the persistence layer by setting null for a @NotBlank field on the ServiceObject.