Redefining web applications with AJAX, Servlets and JSON
JSON, Java Servlets and AJAX example
In this article I would like to show how JSON (JavaScript Object Notation) and Java servlet can be used together in a little AJAX (Asynchronous JavaScript and XML) application. To give brief description to those who are not closely familiar with JSON - JSON is a lightweight syntax for representing data, which ...
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You gotta love Linux
Last Friday as I was working, I was asked to get some information from the application logs for a particular period of time. I needed to extract some data and count the results. The given period was last twelve months. Luckily I am working with Linux, so I opened a shell session and typed the following after doing ...
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Categories : linux
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Rule Engine Stress Testing
Comparing Drools performance to other BRMS
I came across a blog by a company called Illation. What those guys do is compare performance of several rule engines available on the market: Drools, ILog, OPSJ and Jess. The stress tests cover different aspects, for example: Rules firing time Data load time Memory usage Pre-run memory used ...
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My voice is on iPhone App
My colleague Ila, has developed an iPhone app that reads out phone numbers from the phone book when you need it. Ila has requested some of us to "contribute&quo...
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Categories : iPhone
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VMware and Melbourne IT launch cloud service
Demand increases for local cloud computing services
Australian web hosting provider from Melbourne, Melbourne IT has launched cloud computing services together with VMware. The service is still in beta mode and it is called "vCloud Express" Its nice to see local provider offering cloud computing services as other big players on the market. A lot of ...
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Categories : it
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Drools 5 Case Study 2 - Complex Event Processing
Creating rules to process complex events using sliding time and length windows
In my previous post Drools 5 - Complex Event Processing, I gave introduction to Drools Fusion module. In the current post, I would like to demonstrate Drools Fusion capabilities. As an example chosen for the current article, I decided to use a scenario when an insurance firm rewards its policy members. The members ...
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Categories : drools
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Drools 5 - Complex Event Processing
Introduction to Drools Fusion
From Drools version 4 to version 5, the framework has undergone quite a few improvements. These include support for three additional business modeling techniques. So today, Drools is not only a rule engine, but much more than that. One of these techniques is event processing. The module that added event processing ...
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Categories : drools
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Drools 5 Case Study 1- Writing DSL for DRL rule
A small real life case study from one of the blog readers
One of the blog readers, who posted a comment in my previous post Drools - tutorial on writing DSL template asked to me to help him with creating DSL for the following rule, so I decided to use his example as a small case study: For readability, I added some comments to the original rule: rule 'Rank accomodation ...
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Categories : drools
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JBoss Security - JMX Console
Importance of securing JMX Console in production environment
I was reading about JBoss security today, and came across the following page: JBoss Security vulnerability JMX Management Console. The guy tells how common is to come across servers on the Internet that run completely unsecured JMX-Console. I gave it a try, typed few keywords in Google, and voilà - around ...
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Feedback by the Drools Team
Mark Proctor, the project lead notices Java Beans dot Asia
Today while checking my blog's referrers, to my pleasant surprise I discovered that few Drools articles I have published on this blog, were praised by Mark Proctor in Drools blog. Mark is one of the Drools creators and I think at the moment the project lead. The following is the post where my articles were ...
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Categories : drools
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