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Windows Azure Service Bus Scatter-Gather Implementation
One of the more challenging enterprise integration patterns that developers may wish to implement is the Scatter-Gather pattern. In this article I will show the basic implementation of a scatter-gather pattern using the topic-subscription model of the windows azure service bus. I’ll be using the implementation in demos, and also as a lab in my training courses, and the pattern will also be included in the next release of my free e-book the “Windows Azure Service Bus Developer Guide”. The Scatter-Gather ......

Posted On Monday, April 16, 2012 9:53 AM

Windows Azure Service Bus Splitter and Aggregator
This article will cover basic implementations of the Splitter and Aggregator patterns using the Windows Azure Service Bus. The content will be included in the next release of the “Windows Azure Service Bus Developer Guide”, along with some other patterns I am working on. I’ve taken the pattern descriptions from the book “Enterprise Integration Patterns” by Gregor Hohpe. I bought a copy of the book in 2004, and recently dusted it off when I started to look at implementing the patterns on the Windows ......

Posted On Tuesday, April 10, 2012 11:35 AM

Transactional Messaging in the Windows Azure Service Bus
Introduction I’m currently working on broadening the content in the Windows Azure Service Bus Developer Guide. One of the features I have been looking at over the past week is the support for transactional messaging. When using the direct programming model and the WCF interface some, but not all, messaging operations can participate in transactions. This allows developers to improve the reliability of messaging systems. There are some limitations in the transactional model, transactions can only ......

Posted On Monday, April 2, 2012 9:46 AM

Windows Azure Service Bus Resequencer
Introduction I’ll be presenting a session at Sweden Windows Azure Group (SWAG) on Monday, as well as presenting on the Windows Azure Service Bus at various other events. I thought it would be fun to look at implementing some of the Enterprise Integration Patterns using the brokered messaging capabilities. I’ll use this article in the next release of Windows Azure Service Bus Developer Guide, and it will probably end up as a “challenge lab” for my Service Bus course. As a long-time BizTalk developer ......

Posted On Friday, March 23, 2012 10:47 AM

Sweden Windows Azure Group Meeting - Windows Azure Service Bus, 26th March, Stockholm
I’ll be presenting a session on “Windows Azure Service Bus” for the Sweden Windows Azure Group (SWAG) at AddSkills in Stockholm on the 26th March. It will be a demo intensive session looking at the relayed and brokered messaging capabilities of the Service Bus. Register for the event here. Sign up to Sweden Windows Azure Group (SWAG) for notifications of future events here. Read more about the Windows Azure Service Bus in my e-book “Windows Azure Service Bus Developer Guide” ......

Posted On Tuesday, March 13, 2012 9:20 AM

PDF and CHM versions of Windows Azure Service Bus Developer Guide Available & Azure Service Bus 2-day Course
I’ve just added PDF and CHM versions of “Windows Azure Service Bus Developer Guide”, you can get them here. The HTML browsable version is here. I have the first delivery of my 2-day course “SOA, Connectivity and Integration using the Windows Azure Service Bus” scheduled for 3-4 May in Stockholm. Feel free to contact me via my blog if you have any questions about the course, or would be interested in an on-site delivery. Details of the course are here ......

Posted On Friday, March 2, 2012 12:54 AM

Windows Azure Service Bus Developer Guide
I’ve just published a web-browsalbe version of “Windows Azure Service Bus Developer Guide”. “The Developers Guide to AppFabric” has been re-branded, and has a new title of “Windows Azure Service Bus Developer Guide”. There is not that much new in the way of content, but I have made changes to the overall structure of the guide. More content will follow, along with updated PDF and CHM versions of the guide ......

Posted On Tuesday, February 28, 2012 10:32 PM

Sweden Windows Azure Group (SWAG) Meeting, 20th September in Stockholm
For the first SWAG meeting of 2012 Ludwig Ahrle and Mikael Eriksson will present two developer focused sessions covering the work they have been doing for Curvande on the Windows Azure platform. This will be a great opportunity to see real-world Azure development hands-on. The presentations will take place between 18:00 and 20.30, with a 30 minute break for food, there will then be a chance to take a drink, chat and mingle with the presenters and other SWAG members. Register here. Sign up to join ......

Posted On Monday, February 13, 2012 9:48 AM

Azure Service Bus - Two Day Course in Stockholm
As I was working on “The Developers Guide to AppFabric” e-book I also started developing a training course on the Azure Service Bus. The first delivery of this course is scheduled for May 3-4 in Stockholm. I’m really looking forward to delivering this, it will be exciting to be working with emerging technologies. The course will be updated on regular bases to cover the new features as they pass through CTP and into release. The course details are here. If you have any questions about the course, ......

Posted On Thursday, February 9, 2012 5:36 PM

A Great Holiday Season for Azure Developers
There are a lot of reasons why the 2011 holiday season is a great time to take a look at Azure development. There are a number of offers and releases that allow you to start to explore cloud-based development on the Microsoft platform, best of all; they are all pretty much free to take advantage of. $0 Spending Limit on Azure Trial & MSDN Accounts Ever since the introduction of billing for Windows Azure it has always been an issue for many developers wanting to learn Azure that, if you are not ......

Posted On Sunday, December 18, 2011 10:59 AM

SWAG & SWENUG Security in the Cloud & Julfest
Sweden Windows Azure Group (SWAG) and Sweden .NET User Group (SweNUG) will be hosting a “Security in the Cloud” and Christmas event this Thursday. Sergio Molaro and Robert Folkesson will be presenting on different aspects of cloud security, there will be good food, good drinks and prizes in a great location. If you are in Stockholm it’s free to register to attend here . Sign up to join Sweden Windows Azure Group here ......

Posted On Tuesday, November 29, 2011 9:27 AM

The Developer's Guide to App Fabric November 2011

The November 2011 release expands on the Service Bus brokered messaging content to provide more details of the features. Deadlettering and message expiration are covered, along with message deferral, duplicate message detection, message correlation and sessions.

Get it here.


Posted On Tuesday, November 8, 2011 9:26 PM

Deadlettering in Azure AppFabric Service Bus Brokered Messaging
I’ve just published an article on deadlettering on “Deadlettering in Azure AppFabric Service Bus Brokered Messaging”. It looks at how deadlettering can be used to handle poison messages, and messages that do not meet business rules. The article will be included in the next release of “The Developer’s Guide to AppFabric”, a free e-book on Azure AppFabric development. The latest edition of the e-book is available for download here ......

Posted On Friday, October 21, 2011 11:28 AM

Sweden Windows Azure Group (SWAG) meeting on Thursday 27th October in Stockholm, "Extending to the Cloud",
I’ll be presenting a session on “Extending to the Cloud” at the Sweden Windows Azure User Group next week. Extending to the Cloud Extending to the cloud involves developing hybrid applications that leverage the capabilities of cloud based platforms. Many of the Windows Azure solutions developed today involve extending the capabilities of existing applications and infrastructure to leverage the capabilities of Azure. These hybrid applications allow developers to combine the best of both worlds. Existing ......

Posted On Monday, October 17, 2011 9:23 AM

Official release of “The Developer’s Guide to AppFabric"
I’ve just published the official release version of “The Developer’s Guide to AppFabric”. After receiving some great feedback from people I’ve corrected some errors and typos. There’s no new content since the CTP, but I’m busy working on that and there will be a lot more coverage of brokered messaging in the November release. If you want notification of new releases, follow me on Twitter @alansmith. You can download the October 2011 release here ......

Posted On Wednesday, October 12, 2011 10:59 AM

CTP Version of The Developers Guide to AppFabric
I’ve just published a CTP version of “The Developers Guide to AppFabric”. Any feedback on the content would be great, and I will include it in the full release next week. “The Developer’s Guide to AppFabric” is a free e-book for developers who are exploring and leveraging the capabilities of the Azure AppFabric platform. The goal is to create a resource that will evolve and mature in parallel with the Azure AppFabric technologies. The use of an electronic format will allow sections to be added as ......

Posted On Monday, October 3, 2011 11:15 AM

Two Great AppFabric Resources
If you want to get up to speed on Azure AppFabric brokered messaging there are a couple of resources you should check out. SB CTP Messaging User Guide This is a 30 page word document put together by the AppFabric dev team. It’s a great read to get an introduction to Queues, Topics and Subscriptions. If you are working in the AppFabric Labs environment using the May or June CTP the code will work fine. There have been significant changes in the API in the September 2011 release, so don’t expect any ......

Posted On Friday, September 23, 2011 1:54 PM

AppFabric Duplicate Message Detection
I’ve just published three webcasts looking at AppFabric Messaging, Introduction to Azure AppFabric Queues, AppFabric Duplicate Message Detection and AppFabric Messaging Message Expiration. There are more webcasts on the AppFabric June CTP here. This article will take a look at the code used in the duplicate detection webcast and explain the concepts involved. Bear in mind that this code is based on the AppFabric June CTP, things may change when the production version is released. AppFabric Duplicate ......

Posted On Wednesday, August 17, 2011 12:08 AM

Tutorial: Create Custom External Services in Azure AppFabric June CTP
Introduction One of the first things I wanted to do after installing the Azure AppFabric June CTP was to create an AppFabric application that used the Bing Map SOAP services. That was when I hit my first roadblock. There is currently no option in the AppFabric Application Designer to add a reference to an external service. After asking around in the forums I learned that I should build an external service to do this. There is currently very little documentation on creating external services for Azure ......

Posted On Monday, July 18, 2011 8:25 AM

Another AppFabric Walkthrough - Introducing Topics and Subscriptions
I’ve added a third walkthrough to the AppFabric Walkthrough series. “The following walkthrough will show how topics and subscriptions can be used to implement a simple publish-subscribe messaging channel. The next walkthrough will build on this sample and explore the use of filters on subscriptions.” Introducing Topics and Subscriptions The other two walkthroughs are here. Simple Brokered Messaging Creating a Simple Queue Management Tool At present there are no charges for using the new brokered ......

Posted On Thursday, September 22, 2011 12:12 AM

AppFabric Walkthrough: Creating a Simple Queue Management Tool
I’ve added a second AppFabric Walkthrough based on the Azure AppFabric Service Bus September 2011 release. The second one looks at using the NamespaceManager class to create, list, get and delete queues in an AppFabric service bus namespace using a simple C# console application. Feel free to expand on this scenario to create more sophisticated management consoles. As with the first walkthrough there have been a lot of changes in the classes used to interact with the service bus, so don’t expect this ......

Posted On Monday, September 19, 2011 9:54 AM

AppFabric Walkthrough: Simple Brokered Messaging
I’ve published a basic walkthrough of using the new brokered messaging capabilities in the Azure AppFabric service bus September 2011 release. If you have not used queues in AppFabric before this will get you started with a basic application that you can build upon. If you have used queues in the May or June CTP releases then this walkthrough will be useful to highlight the changes in the management portal and service bus API. (Quite a lot has changed, for the better, but I have a lot of rework to ......

Posted On Friday, September 16, 2011 11:40 PM

Windows Azure AppFabric SDK V1.5 September 2011 – Brokered Messaging is Live!
The Azure AppFabric Service Bus Brokered Messaging functionality has shipped to production, and is available in Azure data centers across the world. This means that we now have point-to-point queuing and publish-subscribe messaging available in the cloud in the form of Queues, Topics and Subscriptions. Be aware that there are substantial changes in the classes in the Microsoft.ServiceBus.Messaging namespace, which means I will have to re-record webcasts and repost blog posts. I’ve spent quite a bit ......

Posted On Thursday, September 15, 2011 2:25 AM

AppFabric Access Control Service Webcast - Using Social Identity Providers
I’ve started to take a look at the Azure AppFabric Access Control Service (ACS), and have started an ACS sectionon Cloud Casts. The first webcast looks at using social identity providers to provide authentication for websites. I’m going to focus on ACS for a bit and wait for the AppFabric messaging capabilities to be released before returning to them and looking in more detail. I have a few webcasts on AppFabric messaging here ......

Posted On Tuesday, September 13, 2011 7:24 AM

New Webcast on AppFabric Caching
It’s cool when you have to use a map of the world to show how your application is deployed. I’ve added a webcast on AppFabric Caching using a very distributed application. The application is tested in Stockholm Sweden with the database located in South East Asia, and the Cache in South-central US. The application is then deployed to the South-central US data center, accessing the database in South East Asia. The point of all this is to show how the AppFabric cache can be used to reduce latency in ......

Posted On Monday, July 4, 2011 2:33 AM

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