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J2EE

What I realized shortly after we put out Magnolia 4.3 is that while we tried to explain new multisite support for example in this screencast there are still plenty of grey areas and lot of confusion when people actually get to use the multisite support. And I think I wrote and talked about this topic earlier as well. Of course as with any new functionality, there are still...
on May 3, 2010

Community

This is the first edition of a new column I'll be writing each weekend titled "java.net: the Week in Review." In the column, I'll present all of the previous week's Java Today news items, a selection of java.net blog posts, polls, and spotlights. I'll organize the presentation by categorizing the featured news items, so if, for example, your interest is JavaEE and GlassFish, you'll be...
on May 1, 2010
FESI Research Program Overview FESI is the Free and open source software Enterprise Solutions Institute. We are a research program designed to study tomorrow's internet technologies as a means to teach folks in the local workforce how to use technologies our customers will likely want to implement.  We also perform this research to prepare local engineers with the knowledge and...
on Apr 27, 2010
My last blog entry about JSR-314-OPEN@JCP.ORG was over a year ago. This list is the official Expert Group (EG) mailing list on which the development of the JSR-314 specification (JSF 2.0) is discussed. The information on how to subscribe/unsubscribe to this list changed in June 2010, but I haven't updated any existing information or blogged any new information about it. This is the overdue...
on Mar 19, 2010

JSR

I wanted to describe an interesting problem I recently faced that involved the most excellent JAX-RS specification and its Jersey implementation.  The quick overview is that we wanted the output of our JAX-RS resource classes to be client-agnostic, but we also wanted the ability to insert a decorator of sorts in between the objects we were returning and the normal JAX-RS serialization/...
on Apr 28, 2010

EJB

On April 28th, 2010, we will be kicking off the first phase of FESI's research.  This where we set up the project, and start to get our hands dirty. Attached is the flyer we will use to promote FESI and what we're trying to accomplish.  Hopefully it will help us get the word out to the local community. Also as the kickoff, we'll be participating with a networking group that meets...
on Apr 27, 2010
I will wrap up my experience at eclipsecon. This was my first time at eclipsecon. Folks who had been here earlier told me that this year there was a lot of topics around eclipse runtime projects – so the focus has shifted from tools to runtime. Overall I liked eclipsecon. My topic, OSGi & Java EE in GlassFish, was also of the same type. The slides of my talk are...
on Mar 30, 2010
As promised earlier, I am going to quickly go over the key points I gathered from the talks I attended at eclipsecon and I also want to brief you about my topic at the conference. Because of a migrane attack earlier today which I firmly believe was caused by severe jat lag, I could not attend as much on day #2 as I had earlier decided to, and that's the very reason why I will keep...
on Mar 24, 2010

Web Services and XML

Recently a user in GlassFish forum asked about developing JAX-WS web service in an OSGi bundle. Here is a complete sample demonstrating a JAX-WS web service invoking an OSGi service via OSGi service registry. You can download it from here. The diagram below hopefully explains the organisation of the sample:   As the above diagram shows, we have three components, viz: 1) osgi-service.jar:...
on Apr 8, 2010
I've extended the declarative hyperlinking module to support the HTTP Link header. It works similarly to the @Link annotation I described earlier except you annotate the response entity class with @LinkHeader (or @LinkHeaders if you need more than one Link header) instead of annotating response entity fields with @Link. Here's a complete example that shows both annotations in action: @LinkHeader(...
on Mar 18, 2010
I've spent some time fleshing out the code in the experimental declarative hyperlinking module I blogged about earlier. In that earlier entry I showed how you could use the new @Link annotation with existing URI templates either explicitly like this: @Link("widgets/{id}")URI link; or by referencing a resource class @Path annotation value like this: @Link(resource=WidgetResource.class)...
on Mar 17, 2010

GUI

Have you ever got into the situation where you feel like you need to stretch the limits of HTTP form processing? Sometimes when developing complex web applications you end up with a form that has just too many features on it. This situation is particularly common when the application uses Ajax forms, as these forms often end up accumulating an enormous amount of funcionality - different actions...
on Mar 30, 2010

Web Applications

Have you got magnolia-4.3? Setup multiple sites? All right, you are all done. The only thing left is to observe the load on the server and how many requests you can serve. You might have noticed that after activating the content, load on the public is bit higher even though there is no increase in traffic. Why? Simply because after activating the piece of content, cache on the public...
on Mar 26, 2010
Last bunch of the entries have been all about the code. Today let's try something different. Partly because at the time of writing I'm just 34 thousand feet above Atlantic and really don't feel like coding anything, but partly also because i have been thinking about the problem I'm going to describe for while already. I'm sure most of you have seen similar issue in the past as well or are...
on Mar 20, 2010
I wrote about Magnolia cache few times already since it have been re-implemented for Magnolia 3.6. And it seems like with Sprint 4 of Magnolia 4.3 it came back to bite me. There was a bunch of tickets related to various aspects of the cache. Most of it was related to the fact that the default cache key (only URI) was not enough for many installations which were...
on Mar 11, 2010

Security

 During implementation of the NTLM authentication into our application, I wanted to achieve failover to standard login page (html form) if NTLM authentication fail. http://aloiscochard.blogspot.com/2010/03/integration-failover-strategy-for-ntlm.html
on Mar 25, 2010
Spring framework is one of the biggest and the most comprehensive frameworks Java Community can utilize to cover most of the  end to end requirement of a software system when it come to implementation. Spring Security and Spring Remoting are two important parts of the framework which covers security in a descriptive way and let us have remote invocation of a spring bean methods using a local...
on Mar 18, 2010

Programming

Meeting with OSGi Experts   Although I had interacted with a number of active members of OSGi [1] expert group, last week I had the opportunity to meet some of these experts at an OSGi Enterprise Expert Group face2face event held at LinkedIn's Mountain View office. This is also the first time I met Richard S. Hall, the Felix guy (don't confuse with a very active Felix [2]...
on Mar 22, 2010

Databases

A big part of  my current company work is related to managing infrastructure hosted in cloud computing environments. I have recently released an open source project (Rain Toolkit) to help ease the management of Amazon EC2 objects. It is a set of command-line tools for performing day-to-day administration tasks. Since Rain Toolkit deals with the management of EC2 resources, it seemed only...
on Mar 16, 2010

Linux

There are several ways to enable user authentication for web based applications, like .htaccess files, plain tekst files, databases, LDAP, etc. They all have their pros and cons. In case a central, flexible solution is needed, either a database or LDAP solution can be used. I chose for an LDAP solution since it can be reused by many web and application servers and the applications that run on...
on Mar 15, 2010