Smitha Ajay CGL Report

Status report as of Nov 15th 06

2006-11-15T13:46:00.000-08:00

No change as of Monday,13th Nov report.

Just an observation that the XFire webapp is not being picked up by Tomcat.This is the error message that i am getting :
'org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/cdkSimxfire]has not been started'

These are the tasks planned for this week (by 19th Nov 06):

1)Try to resolve Xfire error by deploying the CDK webservice on a new tomcat instance
2)If that does not work, try to deploy a very basic Java public class on XFire

This seems to work : http://gf1.ucs.indiana.edu:5080/websvc/services/Banking?wsdl
Now will check the CDK webservice on XFire.

3)Continue work on displaying VOTable as a portlet

Status Report as of 13 Nov 06

2006-11-13T15:08:00.000-08:00

1)Evaluation of XFire :

Tried a v basic CDK web service for testing on XFire.
The process is v trivial and intuitive as compared to Axis1 or Axis 2.To convert the CDK class into a webservice and deploy the same in Tomcat almost took no time.

Result :

That said, i am getting the below error over the last 1 week :

java.lang.NoClassDefFoundError:org/xbean/spring/context/ClassPathXmlApplicationContextorg.codehaus.xfire.spring.XFireConfigLoader.loadConfig(XFireConfigLoader.java:30)org.codehaus.xfire.spring.XFireConfigLoader.loadConfig(XFireConfigLoader.java:44)org.codehaus.xfire.transport.http.XFireConfigurableServlet.configureXFireNew(XFireConfigurableServlet.java:126) org.codehaus.xfire.transport
..............

The people in the xfire user list presume it could be a problem of spring or xbean jar version.However, that did not seem to work either.I hope to resolve this by this week
(Nov 17th,2006)

2)Building a portlet using VOTable :

I investigated and found that i could use STIL - Starlink Tables Infrastructure Library for manipulating VOTables.
Sima has used SAVOT to work with VOTables and i thought i could try another option and evaluate STIL with SAVOT.
There are a bunch of other VOTable parsers :
http://www.us-vo.org/summer-school/2005/proceedings/presentations/votables.html

I am in the process of working on this and should have a basic structure done soon; hopefully by this weekend.

Status Report For Nov 1st, 2006

2006-10-30T18:13:00.000-08:00

This is a brief of where i left off before my hard drive crashed twice in quick succession.
I have just managed to recover my data and began using Sangyoon's PC since a week.I hope to pick up on the unfinished tasks soon.

Status so far :

-Created a number of portlets for the CDK web services
-Evaluating the various methods of deploying webservices in Axis 2 :
1)WSDL from Axis 1 - Done , Sep last week
2)No wsdl - using OMObject directly - Done, Oct 1st week
3)no wsdl - xmlbeans - Done
4)sun webservices..no axis 2 - have explored in brief
5)any other java wes service frame works - looking at this and andromda

Towards evaluating other framewoks, i found that Andromda is not suitable.It is more of a code generator.

http://galaxy.andromda.org/docs/

However XFire and Systinet Server for Java seems to have been spoken about as having better features than Axis 2 and simpler to use.

-XFire http://xfire.codehaus.org/
-Systinet Server for javahttp://www.systinet.com/doc/ssj-65/primerj/index.html

-Displaying a VOTable data in a portlet - still working on this

Schedule for unfinished tasks:

1)Complete evaluation of XFire and Systinet server - Nov 10th,06

2)Display VOTable data in a portlet - Nov 15th,06