SOA Talk - A SearchSOA.com blog

SOA Talk:

 

A SearchSOA.com blog


The SOA blog with observations and commentary for architects and developers about SOA, Web services, integration technologies (ESBs, Grids, XML) and development platforms such as Java EE and .NET

What’s next for Java? Take a look at GlassFish.

I’m heading out to the JavaOne conference this week and it struck me that Java has had a very quiet year. Two years ago Sun launched Java EE 5 and almost immediately analysts began to call it a heavyweight dinosaur not likely to survive in an SOA world. Sun and others insisted Java would become more modular in the future, but last year Sun concentrated mostly on client development during JavaOne and it’s most momentous move during that past 12 months was to acquire MySQL, which doesn’t exactly point to any new directions for Java.

So what tea leaves can we read? I asked Brad Shimmin over at Current Analysis his thoughts and he said:

My impression with Java’s momentum is that it has reached a point where the platform needs to remain “consistent” top to bottom while affording specialization — much as Spring specialized as an alternative to EJB. I think Java EE 6 heads in this direction greatly with a highly modular approach that lets ISVs certify against particular aspects of the standard. That’s a good thing. Look at GlassFish for a vision of where this whole modularity thing is heading with its use of OSGi.

Well, sure enough, GlassFish v3 has OSGi support and a bunch of cool little subprojects like RESTful Web services, XML pipeline processing and an Ajax UI. Might we see the relationship between OSGi (and probably the Eclipse Foundation) and Java deepen? Now that would be revolutionary. The JCP page on Java EE 6 also mentions that Service Component Architecture could be part of the Java enterprise platform in the future.

Yet it makes you wonder if Java EE 6 has as much to offer the world as GlassFish v4 … or v5 even. Back in 2005, Sun had two hot new kids on the technology block - GlassFish and JBI. While JBI hasn’t gone much of anywhere, Sun continues to push and innovate with GlassFish. Why break a winning streak? What more can be done with the open source application server? Perhaps the biggest news this week won’t be what’s new for Java, but what’s coming up in GlassFish.

Open source leading SOA charge in 2008

Last August I noted that Microsoft regularly finds itself buried under an avalanche of news coming from its Java-based competition. It’s impossible to compete with that kind of volume and that fact alone has caused the SOA market to gravitate toward Java and away from .NET.

Well, something similar is happening this year with open source vs. proprietary vendor in 2008, but, in what should be considered a bit of a stunner, it’s the open source folks who are creating the news deluge. It started innocently enough when Mulesource and WSO2 both released REST-based SOA registries. Then Red Hat released a modularized SOA platform in February. Now WSO2 and Mulesource are back with another major round of announcements. Based on its December Spring Integration release, you can expect SpringSource to become an increasingly visible player in the SOA market. Sun Microsystems will surely have some service-oriented dogs and ponies to show off at next month’s JavaOne conference and Eclipse, which has already debuted the Swordfish SOA runtime this year, will have a whole slate of SOA-enabled tools in its June Ganymede release.

The open source players are pounding away at the news cycle, throwing a steady stream of innovation into the mix. Obviously traditional app dev titans still dominate the market in terms of dollars and customers, but it’s about time somebody noted that we’ve got a movement on our hands. If you’re looking to build loosely coupled services, there are a host of open source vendors to choose from and that ecosystem is growing at an aggressive rate.

Change, particularly in an established market, doesn’t come in one big seismic event. It takes years of consistent pressure to remake this kind of landscape, but to be sure, we are in a period of volcanic activity for the open source market.

Eclipse forms OSGi community

At EclipseCon this week, the Eclipse Foundation announced that it is forming a new open source community project “to develop and promote open source runtime technology based on Equinox, a lightweight OSGi-based runtime.”

Mike Milinkovich, executive director of the Eclipse Foundation, told SearchSOA that this is important news for architects and developers working on service-oriented architecture (SOA) projects for three reasons:

  1. “OSGi itself and Equinox as its implementation has a service-oriented component to it. It is a technology that you use to pull together services in a runtime.
  2. “EclipseLink, which provides persistence to enterprise applications for storing either relational data or XML Schema supports the acronyms enterprise architects love like FDO [Feature Data Objects]. You can get implementations of that specification through EclipseLink.
  3. “It is part of the Eclipse Swordfish project, which is a full SOA runtime.”

When Swordfish was announced earlier this year, Anne Thomas Manes, research director for Burton Group Inc., said OSGi added “real value” and is a good fit for the Eclipse plug-in philosophy.

“There’s a lot of nice features to OSGi,” Manes told SearchSOA. “You deliver software in something called a bundle. As part of the bundle it identifies the manifest of all the things that are in there and also identifies the dependencies that this code has. Then the OSGi runtime can look at it and say in order to deploy this I have to get these things that are listed in the dependencies, and get those installed first. It’s a very clean and elegant way to package stuff up. The idea here is that you are going to package up services using OSGi.”

There is currently a discussion thread on TheServerSide.com regarding Equinox, EclipseLink, OSGi and its relation to the Java Community Process work on the Java Persistence API (JPA 2.0).