Understanding Services in JBoss

The core of any Enterprise Service Bus (ESB) revolves around the definition of services and the way in which these services communicate with each other. How you choose to break up your application into services, whether dealing with the integration of legacy components or designing new functionality, and how they communicate can have a large effect on the performance, flexibility and resilience of your application.

In this article by Kevin Conner and Magesh Kumar Bojan, author of http://www.packtpub.com/jboss-esb-beginners-guide/book/pd/JBoss-abr1/021... " target="_blank">JBoss ESB Beginner's Guide, we will cover JBoss ESB Services, explaining the structure of the ESB message, the mechanics behind the Action Pipeline and the choices you have for implementing actions.

You will learn about:

• The structure of ESB messages and how to validate them
• The configuration mechanism within JBoss ESB
• The service pipeline and service actions
• Service chaining and continuations
• Transactional behavior and its effect on the pipeline
• Security context and its propagation

Understanding the DotNetNuke Core Architecture

In this article series by Ian Lackey and Michael Washington, we will be exploring the core functionality of the DotNetNuke architecture. We will be using the Source Code version of DotNetNuke 5.2.2 that can be downloaded from the DotNetNuke CodePlex site. We will start with an overview of the architecture, touching on key concepts employed by DotNetNuke. After this, we will examine some of the major sections that make up the framework. Finally, after we learn about the objects that make up the core, we will follow a request for a page through this process to find out how each page is dynamically created.

Understanding the Model Development Process in IBM Cognos 8

IBM Cognos Planning allows you to create highly complex models using its advanced forecasting algorithms and scenario planning facilities. With this capability at your disposal, you may be tempted to build a model that "does everything at the push of the button". This article by Rich Babaran summarizes the key steps of the Model Development Process. Over the course of this article, you will learn how to:

• Design the model template in Analyst
• Build the Contributor application
• Enter and review plans in the Contributor Web user interface
• Publish and report on planning data
• Maintain the planning models

Unittest in Python

In this article by Daniel Arbuckle, we shall:

• Learn how to write and execute tests in the unittest framework
• Learn how to express familiar testing concepts using unittest
• Discuss the specific features that make unittest suitable for more complicated testing scenarios
• Learn about of couple of Mocker's features that integrate well with unittest

Unity 3.x Scripting-Character Controller versus Rigidbody

Character controller is extremely important part of any game. Essentially, it allows us to interact with it, control our alter-ego, shoot, explore, and do all kinds of crazy stuff. Most common character controller is humanoid, in general it needs to know how to walk, run, jump, attack, it needs to camera rig that will be accompanying it throughout play. All these actions need to be supported on a programming level and we will look into a way that it can be done in Unity. This article by Volodymyr Gerasimov and Devon Kraczla, the authors of the Unity 3.x Scripting, will help you to:

• Learn Character Controller versus Rigidbody – pros and cons
• Teach player-controlled character walk, run, jump, and shoot
• Program camera controls and switching between different camera types with a press of a single button
• Learn script animations to follow character's actions

Unity 3D Game Development: Don't Be a Clock Blocker

One cheap, effective way of amping up the game experience is to add a clock. Games have used clocks to make us nervous for time immemorial, and it's hard to find a video game in existence that doesn't include some sort of time pressure—from the increasing speed of falling Tetris pieces, to the countdown clock in every Super Mario Bros. level, to the egg timers packaged with many popular board games like Boggle, Taboo, and Scattergories.

This article by Ryan Henson Creighton, author of Unity 3D Game Development by Example Beginner's Guide, shows you how to build three different game clocks: a number-based clock, a depleting bar clock, and a cool pie wedge clock, all of which use the same underlying code. You can then reuse the code in a game of your own.

Unity Game Development: Interactions (Part 1)

Games are all about interacting with a virtual world, so where would our character be without some in-game actions? In this two-part article by Will Goldstone, we'll be looking at interactions and dive into two of the most crucial elements of game development, namely, Collision Detection and Ray Casting. In the first part, we will learn how to add an outpost model to our project and learn how to position, scale, assign colliders to objects as well as tag objects.

Unity Game Development: Welcome to the 3D world

Before getting started with any 3D package, it is crucial to understand the environment you'll be working in. This article by Will Goldstone covers the key 3D concepts and processes we'll need to understand to create games in Unity.

UNIX Monitoring Tool for PostgreSQL

Performance of your database server is directly tied to how well the underlying operating system is working, and there the performance is driven by the hardware you're using. To fit all of these pieces together—hardware performance, operating system performance, and database performance—you need a good monitoring system.

The simple performance tools on a UNIX-derived system are straightforward to use, and it's easy to show examples of good and bad behavior, the best way to teach how those tools are useful for monitoring. In this article by Gregory Smith, author of PostgreSQL 9.0 High Performance, we will cover iostat; Unix's monitoring tool.