Welcome to another installment of This Week in Spring! We've got a lot to cover, so without further ado, let's get to it!

1. Spring XD co-lead Dr. Mark Pollack's just announced that Spring XD 1.1 RC1 is now available! Now's the time to get the bits, try it out and see if there any gaps!
2. If you've been reading the amazing Dr. Syer's blogs of late, you'll know that he's been introducing people to how to use expose and secure REST services for a UI client. The fourth post looks at how to insert an API gateway between the clients and the backend service. The fifth post then introduces OAuth as a drop-in replacement for the bespoke authentication session tokens being used. If you're not following this series, do go back and reread them. This series treats a subject that I get asked…

Note: the source code and test for this blog continue to evolve, but the changes to the text are not being maintained here. Please see the tutorial version for the most up to date content.

In this article we continue our discussion of how to use Spring Security with Angular JS in a "single page application". Here we show how to use Spring Security OAuth together with Spring Cloud to extend our API Gateway to do Single Sign On and OAuth2 token authentication to backend resources. This is the fifth in a series of articles, and you can catch up on the basic building blocks of the application or build it from scratch by reading the first article, or you can just go straight to the source code in Github. In the last article we built a small distributed application that used …

This post is a guest post by community member Tadaya Tsuyukubo (@ttddyy), creator of the Spring Social Slideshare project. Thanks Tadaya! I'd like to see more of these guest posts, so - as usual - don't hesitate to ping me! -Josh

Spring Social Slideshare is one of the community modules in Spring Social ecosystem. It is a Java binding built on top of the Spring Social framework to interact with the SlideShare REST API.

Spring Social modules provide an implementation of the ApiBinding interface that binds Java interfaces and concrete implementation classes to a REST API. By convention, an interface is named as target service, e.g. GitHub, LinkedIn, Facebook, etc. The implementation class is of the form *Template, e.g.: GitHubTemplate, LinkedInTemplate, and FacebookTemplate. In Spring Social Slideshare, there is a Slideshare interface and SlideshareTemplate implementation class. You can use spring to inject the SlideshareTemplate to your service. Or, if you choose to, you can directly instantiate …

Spring Cloud 1.0.0.RC2 is available now in the http://repo.spring.io repository. There was a lot of activity pruning and curating dependencies, so users upgrading from RC1 might need to tweak their starter dependencies a bit, but hopefully we are all in a better place as a result. There were also a lot of changes in the Security features, making it easier to customize various parts of that, mainly in response to people actually using it and needing help (so thanks for the feedback). We will probably have an RC3 before the GA, but things are getting pretty close to ready.

Spring Security OAuth 2.0.6.RELEASE is available now in the usual repositories. It's a bug fix release, and users of 2.0.5.RELEASE should upgrade. The only critical bug was for users of JWT with refresh tokens, and there were also some people experiencing double encoding of redirect uris, which is now fixed. Highlights of new features:

• (Much requested) ability to have non-expiring refresh tokens with no customizations (just set the validity period to zero or less)

• The /token endpoint only accepts POST requests by default

• Resource servers do not accept cookie based authentication by default (you have to switch it on)

• Resource server configuration has a few new options including the ability to inject custom error handlers

…

Recorded at SpringOne2GX 2014.

More Groovy Track

Slides: http://www.slideshare.net/SpringCentral/databases-withgroovy-paulkingoct2013

This talk reviews the features in Groovy which make it easy to work with databases. It reviews the features of Groovy SQL including Groovy's LINQ-like lazy evaluation technology called datasets. In addition, it looks at working with a couple of NoSQL databases: MongoDB (using GMongo) and Neo4J (using it's Java api and via Gremlin support).

On behalf of the Spring Roo Team at Disid Corp, we are pleased to announce the 1.3.1.RELEASE is out!

Spring Roo 1.3.1.RC2 was closed without new reported issues.

Spring Roo jar files have been published to Maven Central.

It is recommended that all Spring Roo users upgrade to this version. For full details on the changes made in the release, please refer to the Spring Roo 1.3.1.RC1 Release Notes and Spring Roo 1.3.1.RC2 Release Notes in JIRA.

Thanks to all awesome users who came up with useful bug reports and suggestions, currently we are working on defining final points of Spring Roo 2.0 Roadmap and it will be published as soon as possible.

For more specific information about Spring Roo project please see the Project Page or GitHub. As always, you'll also find Roo on Twitter - either follow @SpringRoo or just include #SpringRoo in your tweets. Stay tuned to Spring Roo news!

Recorded at SpringOne2GX 2014.

Speaker: Graeme Rocher

Core Groovy Track

Slides: http://www.slideshare.net/SpringCentral/2-gx-2014-making-spring-boot-groovier

In this talk Grails project lead Graeme Rocher will show how you can leverage key technologies from the Groovy and Grails communities to become even more productive with Spring Boot.

Recorded at SpringOne2GX 2014.

Speaker: Thomas Risberg

Big Data Track

Slides: http://www.slideshare.net/SpringCentral/spring-one2gx-2014springforapachehadoop

Leverage your existing Java and Spring skills when making the jump to write applications and workflows for Apache Hadoop. In this presentation we will introduce the Spring for Apache Hadoop project and see how it can make developing workflows with Map Reduce, Hive and Pig jobs easier, while providing portability across ASF, Cloudera, HortonWorks, and Pivotal distros. We'll also look at integration with Spring XD, batch jobs and external data sources. In addition to all this we'll show how use a mini-cluster to test your new Hadoop workflows without having to deploy to a full cluster.