OGSA-DAI Tutorial (13 March 2005)

Note that we cannot guarantee that public services running on coal.epcc.ed.ac.uk will be operational at all times after this tutorial.

Timetable (with links to slides)

Practical: Data Browser

The data browser can be started as follows: Change to your local installation of OGSA-DAI 5.0 and start the databrowser.

> cd ogsadai-5.0
> ant databrowser

• There is a public OGSA-DAI registry at http://coal.epcc.ed.ac.uk:9080/ogsa/services/ogsadai/DAISGR.
• Connect to the public MySQL GDSF at http://coal.epcc.ed.ac.uk:9080/ogsa/services/ogsadai/MySQLGDSF (or replace the URL with the location of your local Grid Data Service Factory if you have OGSA-DAI installed).
• Send an SQL query to the GDSF, for example:

  SELECT * FROM littleblackbook WHERE id>100 AND id<150
  

  and browse the results in the pop-up window.

Documentation: /doc/ogsi/clients/Databrowser.html

Practical: Quickview Client

A public quickview client is available here: http://coal.epcc.ed.ac.uk:9080/ogsadai-quickview.

• Use the public MySQL data resource at http://coal.epcc.ed.ac.uk:9080/ogsa/services/ogsadai/MySQLGDSF.
• There is a registry at http://coal.epcc.ed.ac.uk:9080/ogsa/services/ogsadai/DAISGR.
• An XSL transformation document which transforms the output from an SQL query into html can be found here: http://coal.epcc.ed.ac.uk:9080/transformRowSet.xsl

Documentation: /docs/R5/doc/ogsi/clients/QuickviewClient.html

You may also install the quickview client on your local machine as described in the documentation. Connect to your local GDSF, for example http://localhost:8080/ogsa/services/ogsadai/MySQLGDSF.

Practical: Client Toolkit Tutorial

Start the client toolkit tutorial from here: /docs/R5/doc/clients/clienttoolkit/index.html. The following public GDSFs are available:

• Relational database: http://coal.epcc.ed.ac.uk:9080/ogsa/services/ogsadai/MySQLGDSF
• XML database: http://coal.epcc.ed.ac.uk:9080/ogsa/services/ogsadai/XindiceGDSF

If you have deployed an OGSA-DAI test factory on your local system you can run the SQL examples.

Practical: How To Write An Activity

This is a more advanced tutorial if you would like to add more functionality to an OGSA-DAI service. /docs/R5/doc/tutorials/activitywrite/index.html

Example Database

The example database contains a table littleblackbook which looks as follows:

https://ogsadai.org.uk