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Web Development Tools

How do you write a application that enables communication between two SIP phones? What if you also want to support video calling? If you are using SIP servlets, you would be writing one or two sip servlets (atleast a few hundred lines of SIP servlet code) to achieve this. But if you are using Sailfin CAFE, then things change quite dramatically. Here is the code to do all of the above, I...
on Oct 1, 2009

Servlets

X-Lite configuration is where users commonly make mistakes while using sailfin. Here are some tips that I use while using X-Lite. Remember, this is not a guide to using X-Lite with any VOIP provider, but these are tips to use X-Lite with a SIP application server like SailFin for trying out sample applications, testing your sip application etc. Most of these are very simple, but still........
on Sep 29, 2009
The newly introduced "Basic3pcc" sample demonstrates a simple Third Party Call Control (3pcc) application in SailFin. Download latest SailFin to get this sample. This sample includes 2 applications as shown in the figure below: Figure 1. Applications bundled in Basic3pcc sample.   Application #1 (i.e., 3pccConvergedApp.sar) is a 3pcc call controller application....
on Sep 21, 2009
I've had questions about how to inject Web Beans into servlets and whether that is supported.  In this entry I'll outline a method of accomplishing just that. This is a simple login application that communicates to a servlet using Ajax calls from a JSP view.  I'm not going to focus on the view or the protocol (Ajax) that  is used to communicate with the servlet.  If you are...
on Sep 9, 2009

Databases

Content available at: http://blog.arungupta.me/2009/09/totd-105-how-to-install-oracle-database...
on Sep 28, 2009
Well, this is the second time I am using the new blogging platform of Java.net. This time it was much easier and with less hurdle. I want to write about JPA, performance, caching and related things. Though it wont be very well organized but it may come useful for new JPA developers. recently I have assigned a task to work on performance problems of a first tier application and further extend it...
on Sep 3, 2009

J2EE

Poison messages are basically delivery deadlocks caused by a continuous redelivery of a message to a JMS Queue or Topic. That usually happens due to a code bug or configuration problems in the project. How to reproduce poison messages The easiest way of reproducing the poison messages issue is to create a Message Driven Bean and then to throw an exception in its onMessage method, like the example...
on Sep 24, 2009
Content available at: http://blog.arungupta.me/2009/09/totd-104-glassfish-v3-monitoring-how-to...
on Sep 23, 2009
Content available at http://blog.arungupta.me/2009/09/totd-101-applying-servlet-3-0java-ee-6-%E2%80%9Cweb-fragment-xml%E2%80%9D-to-lift-%E2%80%93-deploy-on-glassfish-v3/
on Sep 16, 2009
Content available at http://blog.arungupta.me/2009/09/totd-100-getting-started-with-scala-lift-on-glassfish-v3/.
on Sep 16, 2009
Introduction   What are our options to administer OSGi runtime in GlassFish? We have already talked about a) a command line tool, and b) a web console. We now have a third option. Recently I came across a REST based console being developed by Filippo Diotalevi. We already have all the necessary support in GlassFish - the REST console requires OSGi/HTTP Service and we have an implementation...
on Sep 4, 2009
The Open Ajax Alliance is a standards organization with the mission of ensuring interoperability within Web based Ajaxified applications. One of their standards relates to intercomponent communication - the ability to subscribe and publish messages which can then be picked up by code written by other authors. Please note that if you don't have an interest in Open Ajax, this post may not be...
on Sep 3, 2009
  Lots of fixes have gone into SailFin 2.0, some of these fixes are related to functionality whereas others are to improve performance. The changes sometimes required creation of new user configurable properties in order to extract the optimal-performance/desired-behavior depending on the users deployment. This article tries to explain some of the properties/attributes that were introduced...
on Sep 2, 2009

Web Applications

Content available at: http://blog.arungupta.me/2009/09/redmine-typo-mephisto-on-glassfish-v3/
on Sep 18, 2009

Web Services and XML

Rule of thumb: Avoid to use {variables} as the first path of a Jersey's @Path I am working on the Arena PUJ Project, a RESTful web-service to support PUJ competitions. We are in the early stages of the project but we already got some resources published on the web. Let me show you a few URL samples: An insecure GET method to read all competitions promoted by a JUG: GET /{competition_id}/...
on Sep 17, 2009

Community

Content available at: http://blog.arungupta.me/2009/09/fishcat-glassfish-v3-community-acceptan....
on Sep 16, 2009

Open Source

Content available at : http://blog.arungupta.me/2009/09/totd-103-glassfish-v3-with-different-os...
on Sep 16, 2009

Eclipse

Content available at http://blog.arungupta.me/2009/09/totd-102-java-ee-6-servlet-3-0-and-ejb-....
on Sep 16, 2009

Mobility

The GlassFish Mobility Platform team has been working on many new features since the 1.1 release back in February 2009, one of which is adding support for MCBO on the Java SE platform.  This will allow the development of desktop synchronization clients that are much more powerful than their mobile Java ME siblings. What's the Difference Between the Java ME and Java SE MCBO ...
on Sep 11, 2009

Research

I am working out a new pet project, an online system to support PUJ Competitions. It is still a work under progress and I plan to start to blog some technical results here, but until that glorious free time I would give you a glimpse about what is keeping my blog so quiet :) So, PUJ is an academic competition where undergraduate student submit their homeworks for the evaluation...
on Sep 7, 2009