Fresh from Arjen Poutsma's twitter feed: Spring 3.0.0.RC2 is now available. The release candidate contains lots of fixes to issues raised by community members and has also been updated to support the final versions of JSR-330 "javax.inject" and JSR-303 "javax.validation" APIs.
The Spring Blog
Today SpringSource has released an update to SpringSource Tool Suite (STS), the best Eclipse-powered development environment for building Spring, Groovy and Grails powered enterprise applications. The latest version (2.2.1) is now available for download and includes:
- Hot on the heels of the latest Spring Roo release, STS now supports Spring Roo 1.0.0.RC3 and enhances the Roo shell with hyperlinking to application files letting you open them for editing with a single click.
- The STS Grails tools have been updated to include a GSP editor for easy page template editing. The Grails tools can be downloaded as an extension to STS.
- Support for the latest milestones of SpringSource dm Server: 2.0.0.M6.
- Improvements to the Cloud Foundry integration that Charles Lee discussed in today's blog post.
Thanks to the efforts of a number of other SpringSource project teams, we are excited to have integrations of three developer tools with Cloud Foundry, namely SpringSource Tool Suite, Grails, and Roo. The result of this is that you can create and develop your Spring or Grails applications, and run them in the cloud without having to leave your favorite IDE or command-line interface. These tools utilize the Cloud Foundry client web services API (to be published soon) and leverage additional intelligence and SpringSource artifact repositories in the cloud for optimized, efficient uploads of Java web applications to Cloud Foundry. This means that you can go from “code to cloud” in just minutes.
Spring Batch Admin provides a web-based user interface that features an admin console for Spring Batch applications and systems. It is a new open-source project from SpringSource. A milestone release 1.0.0.M1 will be available soon with all the features below, and we hope to get to a 1.0.0 final release early in 2010.
Main Use Cases
The easiest way to get a quick overview of Spring Batch Admin is to see some screenshots of the main use cases. The user interface is a web application (built with Spring MVC).
This release follows quickly on the M5 release as we close in on the first 2.0.0 release candidate. This time we’ve focused very heavily on fixing outstanding defects and added just a handful of new features. Take a look at the M6 release notes for the full details of the defects that we’ve fixed and the features we’ve added. Please keep your feedback coming as comments on our blog, in the forums, and on the JIRA.
New and Noteworthy
We are proud to present the Spring community with a new tool which helps get their applications to production even faster: tc Server Developer Edition is the standard 100% Tomcat you know and love, plus a new Spring Insight console.
Spring Insight gives deep visibility into your application’s real activity on a request-by-request basis. For any request you can see all the JDBC queries it made, how much time it took to render, or timings for any of your major Spring beans.
This fine grained information is very valuable when you are looking at a specific request in isolation, but it can be difficult to find a specific request in a mountain of millions. Fortunately, Spring Insight also has a 10k foot view and can quickly point you to problem areas.
Here is a screencast showing the dm Admin Console for the dm Server. It gives a brief tour of the dm Admin Console and then shows some of the features by deploying a simple demo application. The application consists of a configuration file, a web bundle and a content bundle. When deployed the application simply shows the contents of the configuration file in a web browser. The application is installed in parts for the purpose of this demo, in reality you would group the application together with either a ‘par’ or a ‘plan’, to see how this is done with a ‘plan’ file another screencast is available here.
In Milestone M5, for the first time, dm Kernel is available standalone. You can get it from here.
What is dm Kernel?
dm Kernel dm Server Admin Console Splash Tomcat
Essentially, dm Kernel provides you with all that is good about dm Server’s OSGi support, including:
- hot deployment
- configuration properties
- all repository types: watched, external and remote
- chain support (the chain is empty by default)
- easy configurability
- the user region
- full system and application tracing and dump support
- oh, and of course, Spring beans and Spring DM support as usual,
The dm Server has a new command line shell. It is currently available along with the existing Equinox shell and will replace it for the 2.0 release. Improvements over the Equinox shell include basic tab completion and a command history.
The dm Shell is available both locally and remotely over ssh. When used locally by starting the server with the ‘./startup.sh -shell’ option it will take over the console output once the dm Kernel has started. Console output will still be viewable in the event log. Either way the first thing to be produced is an ASCII art splash image followed by the command prompt ‘:> ’.
Dear Spring Community,
I am pleased to announce that the Spring Integration 2.0.0 Milestone 1 release is now available.
This milestone introduces the following features:
- Spring EL support for endpoints (router, filter, transformer, etc)
- Spring EL support for Messaging Mappers including a parameter-level @MessageMapping annotation
- AOP-based MessagePublishingInterceptor including a method-level @Publisher annotation (using SpEL also)
- JMS-backed Message Channels as drop-in replacements for any channel elements
- and more (see the Release Notes for the full list)