Spring Framework

Dear Spring Community, The Spring XD team is pleased to announce that the first milestone of Spring XD is now available for download. Spring XD makes it easy to solve common big data problems such as data ingestion and export, real-time analytics ... [More] , and batch workflow orchestration. The first milestone implements many features and provides a sizable amount of documentation. For more information, please see the Project Home Page, the Release Notes and the the blog posting. We would love to hear your feedback as we continue working hard towards the final Spring XD 1.0.0 release. If you have any questions, please use Stackoverflow (Tag: springxd), and to report any bugs or improvements, please use either the Jira Issue Tracker or file a GitHub issue. [Less]

Hey guys, welcome to another installment of This Week in Spring! This week I'm in New York City, New York, talking to developers at the NYC Java Meetup and at ScalaDays about Spring. We've got a lot of webinars this month, so be sure to check ... [More] out the details below! Want a pass to SpringOne 2GX 2013? If you're a Spring champion, show off your stuff on our champions forum and follow these instructions by June 21, 2013. You might be one of our 5 lucky winners! (If you're a Groovy & Grails or Cloud Foundry champion, never fear, we will be rolling out future contests for you!) Oliver Gierke has announced Spring Data Babbage, the first milestone of the next Spring Data release train. This release includes a lot of new features, so be sure to check out the release note! Spring Batch 2.2.0 is now available! This is a major release that supports Spring Data, Java Configuration, AMQP, and SQLFire in addition to a number of other features. Spring Batch and our participation in the expert group has heavily informed the JSR-352 specification that recently has been finalized. Spring Tool Suite and Groovy / Grails Toool Suite 3.3.0 M2 has been released, based on Eclipse Kepler 4.3. This milestone release improves Java Configuration support and is Spring Framework 4 ready. Craig Walls has announced that Spring Social Twitter 1.0.5 and Spring Social 1.0.3 have been released! The new release fixes a few bugs and is being made available in anticipation of the deprecation of the 1.0 version of the Twitter API. Gary Russell has also announced the Spring Integration 2.2.4 and 2.1.6 maintenance releases, to incorporate the Spring Social Twitter updates mentioned above. I'll be doing a webinar on Thursday on RESTful service design with Spring. As usual, there will be two sessions - one at 3PM GMT and one at 10:00AM PST - to accommodate as many timezones as possible. The webinar will introduce Spring's stack for building RESTful services. We'll start with a simple API, then advance the API, introducing Hypermedia controls with Spring HATEOAS, introducing conventions-oriented repository-based APIs with Spring Data REST, security with Spring Security OAuth and Spring Social and addressing common cases like file uploads, exception handling, record paging, and Ajax. I look forward to seeing you there! Don't miss Jon Brisbin on June 18th, 2013 as he introduces Introducing Reactor - A framework for asynchronous applications on the JVM. Reactor provides a foundational framework for applications that need high throughput when performing reasonably small chunks of stateless, asynchronous processing. Join Tony Erksine from Liberty University on June 27th as he instructs us How to talk Spring and Influence People, a pragmatic lesson on soft skills and technology adoption strategies needed to help get other developers in your company excited about,a nd using, new technology -- in this case, with Spring. I gave a talk on the latest at the amazing DevNexus conference in March on Spring 3.1, 3.2, and 4.0 in March, and that talk is now available online on InfoQ. Do check out the talk, but also be sure to check out the more up-to-date version of that deck from my talk at JAXConf available on my SlideShare account. Head over to the Pivotal Blog for a short primer on Hadoop programming, which walks you through a simple word count program. The example looks at the canonical word-count problem and then looks at other solutions in the ecosystem like Pig, Hive and Cascading. The next blog in the series will introduce Spring for Apache Hadoop for a beginning audience, providing a unified, consistent alternative to the four different methods discussed in this blog post. In related news, if you're in the New York City area, join me Wednesday evening where I'm giving the same talk at the 10gen offices for the NYCJava meetup. Thanks again go to 10gen, the company behind MongoDB, for hosting the meetup. The JavaBeat blog has a nice post on how to use Spring's robust multipart file upload support. Spring's support abstracts away common APIs for file uploads - including the commons-fileupload API and the Servlet 3 API - and lets you use those APIs for HTTP miltipart-encoded file uploads, typically in web applications or REST services. Definitely worth a read, check it out! Idan Fridman put together a rundown on some of the common types of components in Spring Integration, including splitters, transformers, aggregators, and more. The Spring tutorials blog has a great post introduce Spring's @Async and @Scheduled annotations. [Less]

We are pleased to announce the availability of Spring Integration 2.2.4 and 2.1.6 maintenance releases. Spring Integration's Twitter module uses Spring Social Twitter, which has been updated to version 1.0.5 in anticipation of the Twitter v1.0 API ... [More] retirement. The Spring Social Twitter 1.0.4.RELEASE [1] and 1.0.5.RELEASE [2] announcements provide more information about the recent updates to that project. For anyone using Twitter search adapters, the underlying search API in v1.1 requires authorization, so you will need to update the configuration for any TwitterTemplate (if not already configured) with authentication details. The Spring Integration Twitter sample application [3] has been updated to reflect this change. While the Twitter change is the main driver for these Spring Integration releases, they do also resolve a small number of important issues that may be of interest to other users. Please see the release notes for 2.2.4 [4] and the release notes for 2.1.6 [5] for more information. While we have provided this important update to the 2.1.x stream in 2.1.6, all users are encouraged to upgrade to 2.2.4. The project page [6] has links to documentation and downloads and the artifacts are available in the SpringSource maven repository and maven central. [1]: http://www.springsource.org/spring-social/news/spring-social-twitter-1.0.4-released [2]: http://www.springsource.org/spring-social/news/spring-social-twitter-1.0.5-released [3]: https://github.com/SpringSource/spring-integration-samples/tree/master/basic/twitter [4]: https://jira.springsource.org/secure/ReleaseNote.jspa?projectId=10121&version=14100 [5]: https://jira.springsource.org/secure/ReleaseNote.jspa?projectId=10121&version=14035 [6]: http://www.springsource.org/spring-integration [Less]

Head over to the Pivotal Blog for a short primer on Hadoop programming, which walks you through a simple word count program. Learn some basics about Apache Hadoop via four coding approaches: using the native Hadoop library alternate libraries ... [More] such as Pig, Hive and Cascading Stay tuned for the next blog entry in the series, where Spring for Apache Hadoop is introduced for a beginning audience, providing a unified, consistent alternative to the four different methods discussed in this blog post. [Less]

Dear Spring Community, I'm happy to announce the release of Spring Social Twitter 1.0.5.RELEASE. Spring Social is an extension of the Spring Framework that enables you to connect your Java applications to Software-as-a-Service (SaaS) providers such ... [More] as Facebook and Twitter. Spring Social Twitter 1.0.5.RELEASE is a bug fix release that addresses a couple of bugs found since 1.0.4.RELEASE. Specifically, the following items have been fixed: Spring 3.0.x compatibility issue when creating a TwitterTemplate using an application token. Improper deserialization of the max_id property in SearchMetadata. As with the previous release, Spring Social Twitter 1.0.5.RELEASE is being made available in anticipation of the retirement of version 1.0 of Twitter's API, scheduled to take place tomorrow, June 11, 2013. To get the software, download the release distribution or change the Spring Social Twitter dependency in your build file to reference 1.0.5.RELEASE. We invite you to discuss this release as well as the continuing work toward Spring Social 1.1.0 in the Spring Social Forum and to report any bugs or improvements in the Spring Social Twitter issue tracker. [Less]

We are pleased to announce that Spring Batch 2.2.0.RELEASE is now available via Maven Central, Github and the SpringSource download repository. Spring Batch Home | Source on GitHub | Reference Documentation Support for Spring Data Spring Data is a ... [More] collection of projects intended to make it easier to develop Spring-powered applications that use new data access technologies such as non-relational (NoSQL) databases. Based on a model of exposing Repository objects, Spring Data allows applications to access data in a simple and consistent way across many new platforms. Spring Batch 2.2.0.RELEASE provides ItemReader implementations for Neo4J and MongoDB as well as ItemWriter impelementaions for Neo4J, MongoDB and Gemfire. We also have created a RepositoryItemReader and RepositoryItemWriter. Each of these implementations wrap any custom implementation of PagingAndSortingRepository and CrudRepository respsectively. Java Configuration Joining most of the other major Spring projects, with Spring Batch 2.2.0.RELEASE, you will be able to configure your batch jobs via Java config. The @EnableBatchProcessing annotation provides access to not only builders that you can use to construct your batch jobs, but it adds the ability to autowire a number of useful objects (A JobRepository, JobLauncher, JobRegistry, PlatformTransactionManager) with no additional configuration required. Below is an example job configured via the new Java config. @Configuration @EnableBatchProcessing @Import(DataSourceCnfiguration.class) public class AppConfig { @Autowired private JobBuilderFactory jobs; @Bean public Job job() { return jobs.get("myJob").start(step1()).next(step2()).build(); } @Bean protected Step step1() { ... } @Bean protected Step step2() { ... } } The above java config is equivelant to the below XML configuration. <batch> <job-repository /> <job id="myJob"> <step id="step1" .../> <step id="step2" .../> </job> <beans:bean id="transactionManager" .../> <beans:bean id="jobLauncher" class="org.springframework.batch.core.launch.support.SimpleJobLauncher"> <beans:property name="jobRepository" ref="jobRepository" /> </beans:bean> </batch> Non-identifying Job Parameters Running batch jobs that need the same parameters is a common use case. As of Spring Batch 2.2.0.RELEASE, Spring Batch now supports this use case by allowing jobs to accept non-identifying job parameters (parameters that do not contribute to the creation of a new JobInstance). This update did require both code changes as well as updates to the underlying database schema used by the Spring Batch job repository. Fortunately, we have provided a migration script to help with the transition. You can read the details about the migration script in the Getting Started Guide. AMQP support Utilizing the Spring AMQP project, Spring 2.2.0.RELEASE offers support for both reading and writing to AMQP endpoints. SQLFire support Previous versions of Spring Batch provided a number of options for what database to use within the job repository. With the release of Spring Batch 2.2.0.RELEASE, we add support for SQLFire as yet another option for you to store job repository data. Dependency upgrade As part of the ongoing work to keep the dependencies of Spring Batch up to date, we updated batch to support Spring 3.2.x (minimum level of support is now 3.1.2) as well as Hibernate 4 (within the Hibernate based ItemReaders and ItemWriters). Other updates and fixes Beyond all of the new features, we also address many bugs and provided numerous other improvements. The complete list of what has changed between Spring Batch 2.2.0.RELEASE and your current version of Spring Batch can be found here in the changelog. Links Spring Batch Home | Source on GitHub | Reference Documentation [Less]

Dear Spring Community, I'm happy to announce the release of Spring Social Twitter 1.0.4.RELEASE and Spring Social 1.0.3.RELEASE. Spring Social is an extension of the Spring Framework that enables you to connect your Java applications to ... [More] Software-as-a-Service (SaaS) providers such as Facebook and Twitter. Spring Social Twitter 1.0.4.RELEASE is being made available in anticipation of the retirement of Twitter API v1.0. Although Spring Social Twitter has supported the v1.1 of the Twitter API since 1.0.3.RELEASE, it required user authorization for all operations. Twitter has since started supporting application authorization (e.g., OAuth 2 Client Credentials Grant) for resources that do not strictly need user authorization (such as search). Spring Social Twitter 1.0.4.RELEASE now offers a new constructor for TwitterTemplate that accepts an application access token for accessing resources that allow application authorization. In addition, a few minor bugs in the Twitter API binding have been addressed. In support of the changes in Spring Social Twitter 1.0.4.RELEASE, Spring Social 1.0.3.RELEASE offers a new authenticateClient() method in OAuth2Operations to enable an application to obtain an application access token. This application token can be used to construct a TwitterTemplate through the new constructor. To get the software, download the release distribution: Spring Social Twitter 1.0.4.RELEASE Spring Social 1.0.3.RELEASE We invite you to discuss these releases as well as the continuing work toward Spring Social 1.1.0 in the Spring Social Forum and to report any bugs or improvements in issue tracking (Core | Twitter). [Less]

Dear Spring Community, I am happy to announce the second milestone release 3.3.0.M2 of the Spring Tool Suite (STS) and the Groovy/Grails Tool Suite (GGTS). Highlights from this milestone build include: 4.x-based distributions now on Eclipse Kepler ... [More] 4.3 (RC2) ready for Spring 4 new and unified "New Spring Project" wizard improved support for JavaConfig-driven Spring projects Groovy-Eclipse now has a smaller install footprint and uses less memory GGTS now includes Grails 2.2.2 Both tool suites ship on top of the latest Eclipse Juno SR2 release as well as on top of the latest Eclipse Kepler 4.3.0.RC2 release candidate. For optimal performance and stability we still recommend the distribution that is based on Eclipse 3.8.2. The 3.3.0 release is scheduled for July 2013 - shortly after the Eclipse Kepler release. To download the distributions, please go visit: Spring Tool Suite: http://www.springsource.org/sts Groovy/Grails Tool Suite: http://grails.org/products/ggts Detailed new and noteworthy notes can be found here: STS/GGTS 3.3.0.M2 New & Noteworthy. Enjoy! [Less]

Welcome to another installment of This Week in Spring. The SpringOne2GX super early bird registration discount expires on June 10th, 2013, so make your arrangements now to secure the discount. Also, we've got three webinars coming up this month ... [More] , check out the details below. As usual, we've got a lot to cover, so let's get to it! I'll be doing a webinar on building effective REST APIs with Spring on June 13th. I'll be introducing Spring's deep support for REST services, starting with Spring MVC and moving up the Richardson Maturity Model to incorporate Spring HATEOAS and, ultimately, Spring Data REST. Along the way we'll look at the REST shell, and other concerns like security through OAuth. Join Jon Brisbin as he introduces Reactor in a webinar on June 18th. Reactor provides a foundational framework for applications that need high throughput when performing reasonably small chunks of stateless, asynchronous processing. Join Tony Erksine from Liberty University on June 27th as he instructs us How to talk Spring and Influence People, a pragmatic lesson on soft skills and technology adoption strategies needed to help get other developers in your company excited about,a nd using, new technology -- in this case, with Spring. If you're in the bay area, be sure to check out JAXConf happening right now in Santa Clara. Admission is free and there are some great speakers there. I will be speaking there tomorrow on Spring 4, and Multi Client Development with Spring, so feel free to drop by if you'd like to talk Spring, Cloud Foundry and big-data. You probably saw Paul Chapman's awesome posts introducing Spring MVC's support for content negotiation last month and this month he's back with a post on content negotiation using Spring MVC views. Be sure to check both of them out, as they provide solid foundations for dealing with content negotiation in the ever increasing paradigm of REST. Our friend Petri Kainulainen continues his look at Spring Data SOLR and explains how to add custom repository methods to the implementations above and beyond what Spring Data already provides out of the box. This example is in the context of Spring Data SOLR but the approach is generic and works for all the repository implementations. RabbitMQ ninja Alvaro Videla has done an amazing job introducing RabbitMQ's power in the latest edition of Developer Magazine. Every now and then I run into old but cool content, like this project demonstrating how to build a Spring MVC application with Scala. As you might imagine, there's not much difference between Scala and Java, but this is nonetheless an interesting example. Check it out. I've been knee deep in REST, in preparation for my upcoming webinar, and I stumbled upon a great, albeit older, post by Apache Shiro PMC member and REST-ninja Lez Hazelwood on providing good client feedback on errors with REST in Spring MVC. Spring HATEOAS lead and Spring Data ninja Oliver Gierke did an amazing talk introducing Spring HATEOAS at Oredev last year and it's available online. Definitely be sure to check it out! Our pal Nicolas Fränkel is back, this time with a short rant on how to approach modularity in Spring configuration. JavaBeat has a nice post on how to handle themes in Spring MVC. The BitwiseOR blog has a nice post on how to setup a simple, working Spring MVC application. Alexey Zvolinskiy put together a nice, complete-with-code, post on how to use Spring Data JPA to build an application. David, from The small world for Yiyi blog, has put together a nice post on using PDF, XML and JSON from Spring MVC. Our pal Johnathan Mark Smith is back, this time with another video introducing how to use Spring's Java configuration [Less]

Start: 2013-06-27 10:00 End: 2013-06-27 11:00 Timezone: US/Pacific Start: 2013-06-27 10:00 End: 2013-06-27 11:00 Timezone: US/Pacific Sure the new features coming out in Spring Framework 4.0 ... [More] are super exciting, but what about those of us that are still explaining dependency injection to our junior developers? And while Spock, Geb, and spring-test-mvc are revolutionizing our ability to test applications, what about the senior developers that are still justifying the value of unit testing to their managers. Strong technical leadership can overcome the organizational inertia that often resists your team's adoption of Spring technologies. Improve your leadership skills by drawing from lessons that were learned during the process of migrating Liberty University’s software development department from “cut-and-paste coding” in ColdFusion to enterprise grade application development on the Spring Framework. Learn to plan an effective technology adoption strategy that avoids “new technology overload” and balances the pace of technology improvement with the necessity to continue production. Relationships with managers, junior developers, and production system administrators will all be important. Gain a better understanding of nontechnical managers and explore strategies for providing the context they need to make the right decisions. Examine ways to build mentoring plans for your junior developers that include but extend beyond training and certifications from SpringSource University so that you can spend less time teaching and more time coding. Speaker: Tony Erksine, Liberty University Europe: Thursday, June 27 3:00pm GMT Summer Time (London, GMT+01:00) Register North America: Thursday, June 27 10:00am Pacific Daylight (San Francisco, GMT-07:00) Register [Less]