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ColdFusion Authors: Yakov Fain, Jeremy Geelan, Maureen O'Gara, Nancy Y. Nee, Tad Anderson

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CFEverywhere Part 3

Conclusion

Launching from an HTA File
One aspect of the Java/NativeJ launcher that some folks might find undesirable is the appearance of the command window (and perhaps the license fee). On the CFEverywhere mailing list, Adam Haskell shared a great tip on how to use an HTA (HTML Application) file to create a CFE launcher that doesn't create a command line window. You can learn more about HTA at http://msdn.microsoft.com/library/default.asp?url=/ workshop/author/hta/overview/htaoverview.asp (see Listing 4). When you double-click the cfeverywhere.hta file, the VBScript block executes, which instantiates an instance of the Wscript.Shell. This object allows you to execute the batch files to start Jetty and Derby. In order to give the servers time to start, we load a wait.html (Listing 5) in an iframe. Wait.html displays a loading animated gif and uses a meta-fresh to load the application page after a set time. When you want to quit, simply close the application/browser window and the onUnload() event will shutdown Jetty and Derby. It's a Windows-only solution but it works quite nicely and the price is right.

Creating a CFEverywhere CD
Creating a CD is really quite simple. For the entire process, we have been careful to only use relative paths when referring to files. All of the server components are designed to work in a read-only mode. Before we create the CD, let's set it up to automatically run our CFML application when the disc is inserted. Download AutoRun.exe and place it in the cfeverywhere folder. Create a text file called autorun.inf with these contents:

[autorun]
OPEN=autorun.exe cfeverywhere.hta

If you have a custom icon you can add:

    icon=myicon.ico

To make a CD, simply create a project that contains everything in the cfeverywhere folder and burn the CD. Insert the CD on another computer (that has a Java runtime) and try it out. Note that starting a J2EE server and database server from CD is not the quickest thing in the world. You may have to set the wait time in wait.html to upwards of 20 seconds or more depending on the system. Regardless, it brings a smile to you face the first time you put a CD of your application in the computer and see your app launch.

Conclusion
Well, now you have all the tools and knowledge to create your own CFEverywhere applications. I hope this sparks your imagination and inspires you to try it out. If you do create a CFEverywhere application please share your experience on the CFEverywhere mailing list.

Resources

More Stories By Phil Cruz

Phil Cruz is a Macromedia Certified Advanced ColdFusion developer and has over 12 years of experience in the computing industry. He is responsible for www.mach-ii.info, a community site for the Mach-II framework. As a micro-ISV, he created Tracking Tools, an easy-to-use bug tracking application built with Mach-II (www.tracking-tools.com).

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Most Recent Comments
Anthony Planavsky 02/08/08 03:44:34 PM EST

Hello,

I am trying to implement CFEverywhere, and have everything set up to the point where after clicking the executable icon, the command line window launches and gets to the '..waiting to launch browser...' system print line. But when it tries to run the line 'org.mortbay.jetty.Server.main(myargs);' an error appears in the command line window that says: 'log4j:WARN No appenders could be found for logger (org.mortbay.util.FileResource).
log4j:WARN Please initialize the log4j system properly.

The browser window launches, but we get a Page Not Found page because the server did not start due to the error we are getting.

If you could give me any help as to why we are getting this error it would be greatly appreciated.

I was thinking that maybe it had to do with the build path. In the Java Build Path window, we chose the Libraries tab and clicked Add External JARs and imported the org.mortbay.jetty.jar library. Is this the correct way to reference the build path?

Thanks in advance...

Anthony Planavsky

CFDJ News Desk 10/21/05 09:22:00 PM EDT

ColdFusion Developer's Journal - CFEverywhere Part 3
After somewhat of a hiatus, we're back to continue and conclude our CFEverywhere journey. I should note that Dick Applebaum, my copilot for parts 1 and 2, was unable to join me for this last installment. It won't be the same without his contribution but we'll have to make do. Moreover, as Dick provided the knowledge for the Mac side of things, I'll have to apologize in advance for the lack of detail on that front.

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