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This Week in Spring - April 24th, 2018

April 24, 2018

Hi Spring fans! Welcome to another incredible installment of all that’s fit to tweet, blog, record and print about Spring! It’s been an insane week! Since our last installment I was in Paris, FR, for the epic Devoxx FR conference where I spoke at a meetup hosted by ZenikaIT, gave a workshop on Reactive Cloud Native Java and co-presented a talk on Reactive Spring with the one-and-only Juergen Hoeller. I jumped off stage and ran to the airport to board a flight leaving 150 minutes later headed back to the US!

Dependency Management Plugin 1.0.5.RELEASE

Releases

Andy Wilkinson

April 23, 2018

I am pleased to announce that Gradle dependency management plugin 1.0.5.RELEASE is now available from Maven Central, Bintray, and the Gradle Plugin Portal. This maintenance release fixes a handful of issues. It was included in the recent Spring Boot 1.5.12 and 2.0.1 releases and is also a recommended upgrade for all other users of the plugin.

Spring Cloud Data Flow 1.5 M1 released

Releases

Mark Pollack

April 20, 2018

The Spring Cloud Data Flow team is pleased to announce the release of 1.5.0 M1. Follow the Getting Started guides for Local Server, Cloud Foundry, and Kubernetes.

Here are the highlights:

UI Improvements
Spring Boot & Spring Cloud Stream 2.0 Support
Nested splits for Composed Tasks
Metrics Collector 2.0 M1
Stream Application Starters Darwin M1 release train
Support for deploying to multiple Kubernetes clusters

UI Improvements

We have continued to improve the UI/UX of the Dashboard. You will immediately notice an overall lighter weight design. The Tasks tab has been rewritten to match the UX styling of the other tabs. The stream-builder view includes many optimizations ranging from better form validation and eager error reporting. Try it out!

There has also been a significant amount of refactoring to optimize the codebase and prepare for future extensions and feature additions.

Kafka Streams and Spring Cloud Stream

Engineering

Soby Chacko

April 19, 2018

On the heels of the recently announced Spring Cloud Stream Elmhurst.RELEASE, we are pleased to present another blog installment dedicated to Spring Cloud Stream’s native integration with the Apache Kafka Streams library. Let’s review the new improvements.

MessageChannel Binders

Spring Cloud Stream framework enables application developers to write event-driven applications that use the strong foundations of Spring Boot and Spring Integration. The underpinning of all these is the binder implementation, which is responsible for communication between the application and the message broker. These binders are MessageChannel-based implementations.

New in Spring Data Lovelace M2 - Get ready for MongoDB 3.6 and 4.0.

Engineering

Christoph Strobl

April 18, 2018

With the latest Spring Data Lovelace Milestone 2 release, the MongoDB module is stacking up new features that are coming your way in the near future. As you might have followed in the news, MongoDB 4 is going to bring ACID transactions to the Document store. The latest MongoDB 3.6 server release already ships with the main building block for those, client sessions.

You can read all about isolation levels and causal consistency in the MongoDB reference. In short, sessions let you execute operations in an order that respects their causal relationships.

Spring Tips: Redis

Engineering

Josh Long

April 18, 2018

speaker: Josh Long

Hi Spring fans! In this installment we look at the many facets of Redis, the distributed data structure server. Spring supports Redis through the Spring Cache abstraction, Spring Session, the Spring message-listener container abstraction, and through the Spring Data Redis module.

This Week in Spring - April 17th, 2018

Engineering

Josh Long

April 17, 2018

Hi Spring fans! Welcome to another installment of This Week in Spring! This week I’m in Paris, France and I’ll be in Mainz, Germany, next week for JAX and Linz, Austria for the DevOne event. If you’re in any of these places then don’t hesitate to reach out!

We’ve got so much to cover so let’s get to it!

Spring Cloud Task and Spring Batch lead Michael Minella just announced Spring Cloud Task 2.0.0.RC1
Artem Bilan looks at what’s new in the Spring Cloud GCP 1.0.0.M3 release.
Spring Tool Suite lead Martin Lippert just announced Spring Tool Suite 3.9.4
Spring Boot lead Phil Webb is cooking up a very interesting project to ensure code-formatting consistency for all Spring Boot projects. Interesting! (and still super early days yet..) Think of this as the Java and Spring Boot equivalent of gofmt.
Spring Data ninja Mark Paluch just announced Spring Data Lovelace M2. This release ships with updates for all store modules that contain new features, improvements, and bug fixes. Notable changes include: MongoDB 3.6 support for Change Streams, $jsonSchema, and Client Sessions (in preparation for MongoDB Transactions); Apache Cassandra mapping improvements for Map and Tuple Types, along with newly introduced Lifecycle Callbacks; Upgrade to Apache Solr 7; Improved Connection Handling for reactive Redis and static Master/Slave use; SCAN support for Redis Cluster; List support for Spring Data JDBC; Composable repositories support via CDI; and an t increment to Spring Data Solr to a new major version number, 4.0 M2, as we upgraded from SolrJ 6.6.2 to 7.2.1.
There’s some interesting changes afoot in the programmatic bean definition Kotlin DSL! The new DSL supports injecting multiple bean definitions and accessing the Spring Environment, among other things.
Springg Security OAuth lead Joe Grandja just announced Security OAuth 2.3.2.RELEASE fixing a minor runtime incompatability with Redis
Our very own Jakub Pilimon has a nice post on “event-storming with a splash of domain-driven design.”
Spring Data ninja Mark Paluch shares details on new releases of Spring Data - Spring Data Ingalls SR11 and Kay SR - which include fixes for recently announced vulnerabilities. If you’re using Spring Boot 1.5.12 and 2.0.1 then they bring in the appropriate Spring Data releases, as well
Hi Spring fans! Last week, in the latest Spring Tips installment, I look at the reactive Cloud Foundry Java client
This is a list of must-read books for Spring developers in 2018.
Jenkins X is a new offering from CloudBees that supports smart continuous delivery of applications. In this example it offers an integrated CI/CD pipeline for Spring Boot
The Flowbable BPMN engine has a nice post on the journey they took to Spring Boot 2.0 support
This new project - Chaos Monkey from Spring Boot - from Codecentric supports the principles of chaos engineering in Spring Boot-based services. It helps you answer questions that your tests don’t, like: “will our fallbacks work?”; “how does the application behave with network latency?”; “what if one of our services breaks down?”; and “Service Discovery works, but is our client-side-load-balancing also working?” If Spring Boot Chaos Monkey is on your classpath and activated with profile name chaos-monkey, it will automatically scan your application for all classes annotated with any of the following Spring annotations: @Controller, @RestController, @Service, and @Repository. Then, you configure different “assaults” which will, well, assault your components and try to break them. This is so cool!
This is an exhaustive review of a simple concept: how to change the context-path of a Spring Boot application
I love this image, “Deployment g-forces,” that illustrates what things most support continuous delivery
Jeff Kelly over on the Built to Adapt blog has a really nice post on how Mercedes-Benz uses Pivotal Cloud Foundry to handle their usecases
Check out the following Spring meetup in Minneapolis, MN at 5:30 on April 23, 2018 on serverless and Spring Cloud Function
The E4Developer blog has a nice post on the request processing lifecycle for Spring WebFlux
Spring and Kotlin ninja Sebastien Deleuze has a nice post on testing reactive Spring WebFlux-based web applications with Spring and Kotlin
Our very own Daniel Frey has a really nice event-sourcing example with Kafka Streams
Mimacom have a very nice post on using Spring Cloud Contract
I love this post on consumer driven contracts (by example) with Spring Cloud Contract
Maciej Walkowiak surfaced an oldie-but-a-goodie: SpringSource co-founder Keith Donald on the origins of SpringSource, the company eventually accquired by VMWare which ultimately spun out to become a part of Pivotal.
I haven’t tried this out yet, but it looks like you can now add @RefreshScope to a javax.sql.DataSource @Bean definition and it’ll automatically be re-configured? If so, that’s super cool!
Pivotal’s own Matthew Parker has a nice post on the benefits of test-driven development
The Google Cloud Platform blog has a nice post on the Spring Cloud GCP support, too
The Spring Cloud GCP starters are now on the Spring Initializr!
The Docker blog has a nice post on containerizing Spring Boot applications. Cool.
The E4developer blog has a worthy read: “Getting Reactive with Spring Boot 2.0 and Reactor.”
Do you have your tickets for the Spring Connect São Paulo event on June 26th? I’ll be there and I’d love to see you!
RabbitMQ have a nice blog on how they support capturing client-side metrics with Micrometer
This is a good list on must-read books for Spring developers
Christoph Strobl has teased the forthcoming Spring Data MongoDB support for transactions and it’s exciting!
Wijnand Top has an interesting post on how to use GitLab’s Auto DevOps for a Spring Boot application. Auto DevOps, as I understand it, is basically a made-to-order continuous delivery platform. This is cool!
Jonatan Reiners has a nice post on using the Azure KeyVault as a property source in Spring Boot

Spring Integration for AWS 2.0.0.M2 and Spring Cloud Stream Kinesis Binder 1.0.0.M2

Releases

Artem Bilan

April 17, 2018

Dear Spring Community!

It’s my pleasure to announce Milestone releases for Spring projects supporting Amazon Web Services: Spring Integration for AWS 2.0.0.M2 and Spring Cloud Stream Binder for AWS Kinesis 1.0.0.M2.

Both milestones are available in the Spring Milestone repository and they can be consumed as maven dependencies:

<dependency>
    <groupId>org.springframework.integration</groupId>
    <artifactId>spring-integration-aws</artifactId>
    <version>2.0.0.M2</version>
</dependency>

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-stream-binder-kinesis</artifactId>
    <version>1.0.0.M2</version>
</dependency>

Spring Cloud Task 2.0.0.RC1 is now available

Releases

Michael Minella

April 16, 2018

We are pleased to announce that Spring Cloud Task 2.0.0.RC1 is now available on Github and the Pivotal download repository. Many thanks to all of those who contributed to this release.

What’s New?

This release includes upgrades to existing dependencies as well as some nice new features. Let’s take a look at what’s new in this release.

Compatibility with Spring Cloud Stream 2.0

Spring Cloud Stream 2.0 was released a few days ago and provides a collection of impressive enhancements. Spring Cloud Task is updated and supports Spring Cloud Stream 2.0

What's new in Spring Cloud GCP 1.0.0 Milestone 3

Releases

Artem Bilan

April 16, 2018

Dear Spring Community!

The Spring Cloud GCP is a set of Spring Boot starters that is designed to help you leverage Google Cloud Platform managed services directly from Spring Boot, allowing you to use Spring Messaging for Cloud Pub/Sub, Spring Resource for Cloud Storage, Spring Cloud Sleuth for Stackdriver Trace, Spring Data with Cloud SQL, and more.

We’ve just released Spring Cloud GCP 1.0.0.M3. Check out what’s new since the previous Milestone 2!

Spring Boot 2.0 GA Support

Spring Cloud GCP 1.0.0.M3 is now up to date to work with Spring Boot 2.0.1.RELEASE and Spring Cloud Finchley.M9.

To use Spring Cloud GCP 1.0.0.M3, simply import the BOM in your Spring Boot 2.0 project:

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-gcp-dependencies</artifactId>
            <version>1.0.0.M3</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

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