boakes.org

the road to Globus Tooklit version 4 (GT4) is a long one and (to continue the metaphor a little) it is also a winding one.

it’s getting closer though. of most interest to me at the moment is the Java Web Services Core which provides WSRF capabilities, and as a corollary to that the Java CoG Kit 2.0 which happily has a fledgling manual already.

note: although technically the 2.0 cog kit - it will be released as version 4.0

This is all about modelling state in web services, which are by default, stateless. WSRF add

OGSI is dead, long live WSRF

The WebServices-ResourceFramework (WSRF) is a refactoring of the capabilities of OGSI, to take account of newer standards such as WebServices-Addressing

WSRF & WSNotification specs from HP

In Globus, a Resource object implements the ResourceProperties interface which provides a getResourcePropertiesSet method. This set, in turn, contains objects that implement ResourceProperty.

This 3.9.2 design doc is pretty helpful in explaining how the WSRF core fralls together.

When they’re written Information Service Documentation for GT4 will be linked from this large table.

Interestingly it says in the latest release notes that that

This release will aggregate Resource Properties from registered resources and publish in service group form.This release does not contain clients for registering or accessing indexes. You can find example code that demonstrates use of the index in the index package at: src/org/globus/mds/index/impl/test1.java

Hmmm the GT4 fact sheet says that “Support for Xindice and aggregated data persistence has been removed.”

This is nice Globus Toolkit 3.9.2 Development Documentation: WS Java Core

the old stuff is broken

Since GT 3.2 the API is mostly new, and the XML schemas in use are all new too (OASIS WSRF and WSN w.d. spec + WS-Addressing from Mar 2004