This Week in Spring - December 7th, 2021

Engineering | Josh Long | December 07, 2021 | ...

Spring Cloud Sleuth 3.1.0 is out!

Engineering | Marcin Grzejszczak | December 07, 2021 | ...

With the release of the Spring Cloud 2021.0.0 (aka Jubilee) release train we're more than happy to announce the general availability of Spring Cloud Sleuth 3.1.0. In this blog post we'll describe the most notable released features.

Here is the list of most notable features, we'll elaborate on them in the subsequent parts of this post.

A Bootiful Podcast: DataStax's Christopher Bradford on the Apache Cassandra operator for Kubernetes, K8ssandra

Engineering | Josh Long | December 02, 2021 | ...

Spring Cloud Function 3.2 is out!

Engineering | Oleg Zhurakousky | December 02, 2021 | ...

Spring Cloud 2021.0.0 is finally out and with it you have Spring Cloud Function 3.2

While the full list of features, enhancements and bug fixes is available here, I’d like to call out few of them in this post and provide some details.

gRPC Support

In addition to an already existing support for invoking function via AWS Lambda, RSocket, Spring Cloud Stream etc., Spring Cloud Function now allows you to invoke function via gRPC. Two ways to benefit from it.

Spring Message

Given the wide adaption of Spring Messaging, one way of benefiting from gRPC support is by embracing Spring's Message. Spring Cloud Function provides GrpcSpringMessage schema modeled after Spring's Message. It is internally converted to Spring Message to benefit from all of the existing support for Spring Messaging

Spring Tips: @Controllers and RSocket

Engineering | Josh Long | December 01, 2021 | ...

Hi, Spring fans! In this installment of Spring Tips (@SpringTipsLive), we continue our tour of all things @Controller, this time focusing on the Spring support for RSocket. You might also want to watch the expanded discussion of RSocket in earlier Spring Tips videos:

  1. The RSocket Revolution - watch this next!
  2. Raw RSocket support
  3. RSocket Messaging and the @Controller component model
  4. RSocket and Spring Security
  5. Spring Retrosocket

This Week in Spring - November 30th, 2021

Engineering | Josh Long | November 30, 2021 | ...

Hi, Spring fans! Welcome to another installment of This Week in Spring! This last week's been nutty! Here in the US, we just celebrated the Thanksgiving holiday, and I am fat with turkey and pie, and lazy. But happy. I hope you're well fed and happy, too. Time's flying. (Also: can you believe we're a month away from the new year? I think there's like four or five weeks (and thus _This Week in Spring_s!) left in the year!)

We've got a ton of stuff to get into this week, so let's go:

Security Report for Spring AMQP (Spring for RabbitMQ)

Engineering | Gary Russell | November 29, 2021 | ...

The recently released versions of Spring AMQP (2.4.0, 2.3.12, 2.2.20) contain a fix for CVE-2021-22095, which can cause a potential OutOfMemoryError for very large messages.

Spring Boot version 2.6.0 and 2.5.7 will bring in the 2.4.0 and 2.3.12 versions of spring-amqp respectively. Users of Boot 2.4.x should override the spring-amqp and spring-rabbit versions to 2.3.12; users of Spring Boot 2.3.x should override the versions to 2.2.20.

Spring Data MongoDB - Relation Modelling

Engineering | Christoph Strobl | November 29, 2021 | ...

MongoDB’s flexible schema allows for multiple patterns when it comes to modeling relationships between entities. Also, for many use cases, a denormalized data model (storing related data right within a single document) might be the best choice, because all information is kept in one place, so that the application requires fewer queries to fetch all data. However, this approach also has its downsides, such as potential data duplication, larger documents, and the maximum document size.

In general, MongoDB recommends using normalized data models when the advantages of embedding are neglected by the implications of duplication. In this blog post, we take a look at the different possibilities of linking documents with manual references and DBRefs

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