[Biojava-l] BioJava, Dazzle and Google App Engine (Java version)

[Rouilly, Vincent]

Hi,  

thanks for your quick replies.

Sorry, I forgot to mention that I am also using the stand-alone Google Engine for now, with the Eclipse plug-in. 
And, my development platform is a Mac OS 10.4.11, with JRE 1.6 from Soylatte, and Eclipse v3.4.2. 

I have read through the dazzle documentation, but I still can't get it to work within the Google App Engine / Eclipse environment.
I am not very familiar with Eclipse, so it is very likely that I am not doing things right.
 
Here is the process I have followed to give Dazzle  a try to on the Google Engine. But remember, this process doesn't work for me.
I hope it makes sense, and that someone can point me to the right direction.

many thanks,
Vincent.

1- Download 'dazzle' in /tmp/  using subversion (http://biojava.org/wiki/Dazzle):
	svn checkout http://www.derkholm.net/svn/repos/dazzle/trunk /tmp/dazzle

2- Create new Google App Engine project from Eclipse (after Google Engine plugin installation):
	Project name: dazzle
	Package: org.biojava.servlets.dazzle
	Uncheck 'Use Google Web Toolkit'
	Finish

3- Import 'dazzle' Jar files into 'dazzle google engine' project
	import from /tmp/dazzle/jars: bioJava.jar, bytecode.jar, dasmi-model.jar, servlet-api-2.3.jar
	In Eclipse, 'dazzle' project Properties -> Java Build Path -> Add  External Jars

4- Import 'dazzle' src files into 'dazzle google engine' project
	drag-and-drop /tmp/dazzle/src/org folder into 'Eclipse:/ dazzle/src' folder

5- Import 'dazzle' ressources folder into 'dazzle google engine' project
	drag-and-drop /tmp/dazzle/resources folder into 'Eclipse:/dazzle' folder

5- Import WEB-INF files into 'dazzle google engine' project
	drag-and-drop files from /tmp/dazzle/dazzle-webapp into Eclipse:/dazzle/war/.

6- Update web.xml file in Eclipse:/dazzle/war/WEB-INF/
	 <servlet>
     	 <servlet-name>DazzleServerMain</servlet-name>
      	<servlet-class>org.biojava.servlets.dazzle.DazzleServlet</servlet-class>
    	</servlet>

    	<servlet-mapping>
      	<servlet-name>DazzleServerMain</servlet-name>
      	<url-pattern>/*</url-pattern>
    	</servlet-mapping>

	welcome-file-list: dazzle-welcome.html

6- Run application as web Application in Eclipse
	check with web browser: http://localhost:8080/das/dsn



________________________________________
From: andreas.prlic at gmail.com [andreas.prlic at gmail.com] On Behalf Of Andreas Prlic [andreas at sdsc.edu]
Sent: Saturday, August 08, 2009 9:50 PM
To: Rouilly, Vincent
Subject: Re: [Biojava-l] BioJava, Dazzle and Google App Engine (Java version)

Hi Vincent,

did you try following the instructions at
http://biojava.org/wiki/Dazzle ?

I have never tried to run it using the google app engine, but it works fine for me using Eclipse or standalone... Also have a look at
http://biojava.org/wiki/Dazzle:deployment

Hope that helps,
Andreas



On Sat, Aug 8, 2009 at 10:33 AM, Rouilly, Vincent <vincent.rouilly03 at imperial.ac.uk<mailto:vincent.rouilly03 at imperial.ac.uk>> wrote:
Hi,

first of all, congratulations and thanks to all BioJava contributors for providing such a great library.

Over the last few days, I have been trying to use BioJava on the Google App Engine (with its latest Java support).
http://code.google.com/appengine/docs/java/gettingstarted/

Has anyone got experience with that ?

I am especially interested in setting up a Dazzle DAS server on the google app engine (basic configuration).
It would be a great way for people to easily share their data through DAS.

However, whatever DAS request, I always get the exceptions:
DataSourceException("Basic installation only covers flat namespace of data-sources");

Any suggestions ?

many thanks,

Vincent.

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