I’m pleased to announce the immediate availability of Grails 1.3! Followers of Grails releases will recall that it has not been long since the last major release of Grails (Grails 1.2 was released in December), but given the need to get the latest and greatest version of Groovy in the hands of developers, Grails 1.3 can be seen as the Groovy 1.7 release. The Groovy team did a fantastic job in bringing all sorts of excellent new additions to the Groovy language such as annonymous inner/nested classes, an AST builder and power asserts (my personal favourite), all of which are now available in your Grails application.
The Spring Blog
Dear Spring Community,
We’re pleased to announce the availability of Spring Web Flow 2.1.0 M1.
This release is built on Spring 3.0.2, Spring Security 3.0.2, Tiles 2.1.2, and Portlet API 2.0. It features use of Spring EL as the default expression language as well as integration with the new type conversion and formatting system available in Spring 3.
The 2.1.0 release will have two milestones with the first release candidate scheduled for two weeks from today. Feedback and comments at this point are welcome.
Another week, another important announcement. The SpringSource division of VMware today announced that we have entered into a definitive agreement to acquire GemStone Systems, a leader in data grid technology.
This acquisition, like our recent acquisition of Rabbit Technologies, adds another crucial building block of private and public cloud to our middleware portfolio. Like Rabbit and SpringSource and VMware’s other products, GemStone technology is valuable in both today’s enterprise scenarios and tomorrow’s cloud world. The acquisition also adds an important middleware capability to our offering to our enterprise customers, which complements our existing tc Server product.
VMware and Salesforce today announced a partnership to build an enterprise Java cloud called VMforce. The announcement is understandably receiving a lot of attention in the wider industry context, but today I’d like to focus on the central role of SpringSource technology in the new platform and the unique and compelling benefits it brings developers in the Spring community.
What is VMforce?
VMforce is a joint service from VMware and SalesForce. VMforce uses the Force.com physical infrastructure to run vSphere with a special customized vCloud layer that allows for seamless scaling and management. Above this layer VMforce runs SpringSource tc Server instances that provide the execution environment for the enterprise applications that run on VMforce. Spring applications can store their own enterprise data in the Force.com database or use data already resident there. All of these architecture details are seamlessly integrated into a single platform that allows the developer to interact with the server in the way they would with a local tc Server or Tomcat instance.
Dear Spring Community,
This release includes a number of minor bug fixes, as well as an update to the version of Dojo that addresses a Dojo security vulnerability.
In addition to 2.0.x maintenance, the Web Flow project team is currently working on a 2.1 release that provides a current generation version of Web Flow that builds on Spring 3. At the same time, work is continuing towards the first 3.0 milestone for the next generation Web Flow. Watch for future announcements in these areas soon.
I am delighted to announce that the SpringSource division of VMware has acquired Rabbit Technologies Ltd., the company behind the popular open source cloud messaging technology RabbitMQ. This acquisition will enhance our middleware portfolio and accelerate our cloud initiatives.
Messaging Evolution in the Cloud
RabbitMQ is well suited for the cloud for three main reasons:
- Open: RabbitMQ is open source, has an open and active community, and is based on open standards. Openness will be a critical factor for successful cloud platforms because moving to the cloud loses a lot of its appeal if it turns out to be just another version of vendor lock-in.
- Flexible Scalability: RabbitMQ is capable of scaling in multiple different ways, not just technical horizontal scaling but also federated messaging that spans cross service scaling all the way up to geographically diverse scaling.
- Protocol based: RabbitMQ is a protocol based, rather than API based, messaging system. This means that messaging clients are not tied to vendor installed libraries which increases portability for applications and allows for client messaging from a wide variety of different platforms. This approach also allows RabbitMQ to support multiple protocols which increases its utility in heterogeneous environments like the cloud.
An interesting problem that has no universal good solution is: how do I change the configuration of a running Spring application? Spring Batch Admin 1.0.0.M3 was released recently, and it has a configuration upload feature that solves this problem in a particular way. Someone asked for this feature at the recent S2GForum in Munich (if you missed that sign up for events in London and Amsterdam in May), and I was happy to tell him that it already existed, so maybe it deserves a bit more air time…
Screenshots of the Basic Use Case
I’m pleased to announce that Spring Framework 3.0.2 is available now, including more than 100 fixes for user-reported issues. Get it from our download page.
Spring 3.0.2 catches up with recent third-party releases such as Hibernate 3.5 final, OpenJPA 2.0 beta 3, Hessian 4.0.3, and JasperReports 3.7. In addition, this release introduces web support refinements (e.g. the new HttpEntity class) and fixes a couple of regressions.
We recommend upgrading to Spring 3.0.2 from all previous Spring 3.0 releases - for both development and production use. If you are currently using Spring 2.5, the 3.0.2 release is the recommended entry point into the world of Spring 3 now. Enjoy!
SpringSource dm Server 2.0.1 is released today.
The release fixes a few minor bugs and one security issue. The Admin Console’s version of dojo is upgraded from 1.3.2 to 1.3.3 to prevent an open redirect attack.
The release also includes the final Reference Implementation of the OSGi Web Container. The OSGi Web Container specification was recently released by the OSGi Alliance as part of the OSGi 4.2 Enterprise Specification.
No further releases of dm Server are planned as the project is being donated to the Eclipse Foundation as Virgo. We aim to ship a baseline release of Virgo in due course which will be functionally equivalent to dm Server 2.0. SpringSource will offer commercial support for Virgo.
The UDP and TCP channel adapters introduced in Spring Integration 2.0 Milestone 3 provide lightweight communication either between two or more Spring Integration applications, or between a Spring Integration application and some other platform.
Following on from Oleg’s blog about the Loan Broker, I use the same example to show how to use the new UDP adapters available with M3. Assume that the CEO of the Loan Broker company has heard complaints from some customers that several banks are quoting outrageous rates. He asks the CIO if he can monitor the quotes coming back from the banks for a while.