Friday Feb 26, 2010

GlassFish ESB Resilience Options

It is expected that business solutions, whether designed in accordance with the Service Oriented Architecture principles, or designed following any of the other accepted architectural principles, are robust, reliable and available. Robustness, reliability and availability, in this context, means not just that solutions are free of design and implementation defects but are also architected and deployed in such a way that business users can access them when needed, in spite of any failures that may occur.

In an ideal world all applications will always be available for use. In the real world this may not be possible, or may not be possible at a reasonable cost.

The document referenced below discusses resilience options available to the designers of GlassFish ESB solutions and considerations that need to be entered into when designing GlassFish ESB solutions for resilience and high availability.

The original article, GlassFish ESB Resilience Options, is available at http://blogs.czapski.id.au/2010/03/glassfish-esb-resilience-options

Friday Jan 09, 2009

Java CAPS Basics Book - Project Exports Archive

The Archive, __Book_20061221_1320_512_with_Env.zip, contains all (I think) projects featured in the book “Java CAPS Basics – Implementing Common EAI Patterns”, ISBN-13 978-0-13-713071-9, whether in Part I or in Part II (which is on the CD that accompanies the hardcopy book).

See Note at http://mediacast.sun.com/users/Michael.Czapski-Sun/media/JavaCAPSBasics_ProjectExports_Archive.pdf/details for additional details, including project hierarchy and prerequisite Java CAPS components.

Saturday Mar 08, 2008

Java CAPS Basics - Implementing Common EAI Patterns - On Safari Books Online

It has been a long road but the Java CAPS Book, on which my colleagues and I have been working for a while, is about to make it into the world. The publisher made it available on line through the Safari Books Online - Rough Cuts.

 
Anyone with a subscription can get their hands on the material right now. Anyone without a subscription can get a trial subscription from Safari Books Online.

The URL is: http://safari.oreilly.com/9780137146130
 

The printed version is expected early May 2008. 

Enjoy.

PS.

A correction - Sebastian's name is spelt incorrectly - it is actually Sebastian Krueger - we are working on getting the spelling corrected.

Thanks Christian for picking up the acronym error.


Thursday Nov 08, 2007

Java CAPS 5.1.3 - Using JMS RequestReply() in synchronous messaging

By default Java CAPS uses the Java Message Service infrastructure as its underlying messaging layer. Occasionally there is a requirement or a temptation to develop synchronous service, for example invoked as web services or as HTTP Request/Response services, that invoke some back-end component over JMS. In request/response scenarios the response must be delivered by the component which received the request, a JCD or a BP. If the request is passed to the nback-end infrastructure through a JMS Queue or Topic there arises an issue of getting the response back to the same instance of the JCD or a BP that sent the original request. The attached extract, JMS RequestReply, from an early draft of the "Java CAPS Basics - Implementing Common EAI Patterns", discusses and illustrates how the JMS RequestReply() method of the JMS OTD can be used to implement this kind of functionality.

Tuesday Oct 23, 2007

Java CAPS Basics - Implementing Common EAI Patterns (Book)

After almost 2 years the Java CAPS Book I authored with
Sebastian Krueger, Brendan Marry, Saurabh Sahai, Peter Vaneris and Andrew Walker, seems like finally seeing the light of day. The tentative print date for the book, “Java CAPS Basics – Implementing Common EAI Patterns”, Part I, is advertised as set at February 2008 at the pre-order page at Amazon.com.

Here are the Table of Contents and the Preface

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In this Blog I post abstracts of articles / writeups / notes on various aspects of Java CAPS and SOA Suite including solutions, discussions and screencasts. The links to the referenced material are included in the bodies of the abstracts.

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