Tom Sugden: September 2009 Archives

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September 29, 2009

Vote for Morgan Stanley Matrix!

Morgan Stanley Matrix has reached the finals for a MAX Award in the Enterprise Productivity category. You can view the vignettes and cast your vote at:

Public voting has started and the voting will be live until Tuesday, October 6, when the winners will be announced at the event. For more info about Morgan Stanley Matrix, see my earlier blog post or come to the Building Morgan Stanley Matrix session at MAX next week.

Posted by tsugden at 1:59 PM | Comments (1)

September 21, 2009

Morgan Stanley Matrix at MAX

Next month at Adobe MAX 2009 in Los Angeles, Børre Wessel (Lab49) and myself will be presenting Matrix, the next-generation sales and trading platform from Morgan Stanley.

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The session is entitled, "Building Matrix – Scaling Flex for a Large Trading Application" and it will cover our experiences as we worked on the client-side architecture of Matrix, together with a large team of developers. We will discuss the patterns and practices that made the delivery possible — modularization, dependency management, performance tuning, inversion-of-control, etc. — and the challenges we faced along the way, providing guidance for other large-scale enterprise Flex projects.

For more information, put on your headphones and check out the Morgan Stanley Matrix micro-site. Some other resources are listed below. Hope to see you there!

Posted by tsugden at 9:40 PM | Comments (2)

September 13, 2009

Coming Soon: Cairngorm 3

Cairngorm is about to undergo a transformation that will broaden its scope and increase its value to clients and partners. Instead of centering around a specific implementation of the Model-View-Controller pattern, Cairngorm 3 will consist of a set of best practices, tools and libraries, many of which apply across frameworks. This is the knowledge gathered by the Adobe Technical Services organization and partners over the last five or six years, condensed and presented to help others to deliver successful Flex projects in the enterprise.

For those familiar with the Cairngorm 1 & 2 micro-architecture, the traditional Cairngorm library remains a part of Cairngorm 3. Our best practices for applying the Cairngorm library will be shared, together with information about tried-and-tested extensions. And like before, Cairngorm 3 will recommend a layered architecture that separates concerns and supports test-driven development, but this time the approach has been refined and most parts of it complement multiple frameworks.

So what is Cairngorm now if it isn’t just a framework? Well it’s a foundation for delivering successful Flex projects. It’s the answer to the question, “What are the best practices for Flex in the enterprise?”, to help set new teams off on the right track. It’s the information that can’t always be found in official documentation or framework manuals. It's going to be accessible, informative and open-source. And it’s coming soon...

Posted by tsugden at 8:57 PM | Comments (6)

September 4, 2009

Eliminate Common Bad Practices with FlexPMD

Adobe Technical Services are pleased to release FlexPMD to the community. FlexPMD is a new open-source tool for improving code quality. It works by analyzing ActionScript and MXML source files to identify common bad practices, like over-long classes or functions, reliance on magic strings, unused parameters, and many other programming mistakes or misjudgments. It can even spot code that might be causing performance problems, and furthermore, the ruleset can be customized and extended, to include rules specific to the coding conventions of your own project.

FlexPMD can be launched from the command line, but the best practice is to invoke it from your Ant or Maven continuous integration build scripts. In this case, a report will be generated each time a build is performed, describing the violations of your chosen ruleset. As soon as someone checks in their fancy new 1,000 line algorithm with nested loops, numeric variable names and a gaggle of change-watchers, the red flag will be raised. The report produced by Flex PMD allows simple coding mistakes to be identified and corrected immediately, when the cost is far cheaper than attempting to refactor a system that has been decaying for months.

FlexPMDReport.jpg

Figure 1: A Sample FlexPMD Report

Another benefit of FlexPMD is that code reviews become more valuable. Since FlexPMD can automatically identify the common problems, code reviewers are left to reflect on the deeper issues, like domain modeling, separation of concerns, proper encapsulation, and so on.

To find out more about FlexPMD and start using it on your own projects, follow these links to Adobe Open Source:

Credit goes to Xavier Agnetti for conceiving and leading this effort, with support and contributions from many in the Technical Services organization and other parts of Adobe.

Posted by tsugden at 7:21 AM | Comments (0)