Difference between revisions of "IS-Publisher"

Revision as of 21:52, 7 January 2009

The IS-Publisher is an interface defined in the context of the gCore Framework to decouple gCube Services from the specific implementation of the Information Service. In conjunction with the IS-Client and the IS-Notifier, it represents the mediation layer gCube Services will rely on to interact with the Information Service as a whole.

The role of the IS-Publisher is to feed the IS with:

• GCUBEResource profiles
• services' states as of WS-ResourceProperty documents

Operations

The main functions supported from the IS-Publisher are:

• registerGCUBEResource() – which takes as input parameter a message containing a resource (gCUBEResource), an operational scope (GCUBEScope), i.e. an object representing a scope in the gCube model of VO/VREs, and a security manager (GCUBESecurityManager), i.e. the component keeping track of credentials, and returns a string containing the registered profile if the registration is successful;
• registerISNotification() – which takes as input parameter a message containing the topic producer (actually its EPR), a list of topics, an operational scope and a security manager and registers such topics in the IS-Notifier;
• registerToISResource() – which takes as input parameter a message containing the topic producer (actually its EPR), a list of topics, an operational scope and a security manager and registers such topics in the IS-Notifier;
• registerWSResource() – which takes as input parameter a message containing a stateful resource (each stateful entity different from a gCube Resource) and optionally the registration name and the scope and register such a resource in the IS;
• removeGCUBEResource() – which takes as input parameter a message containing a resource ID, a resource type, an operational scope and a security manager and removes the corresponding resource previously registered in the IS;
• removeWSResource() – which takes as input parameter a message containing a stateful resource (each stateful entity different from a gCube Resource) and optionally the registration name and the scope and removes such a resource;
• unregisterFromISNotification() – which takes as input parameter a message containing the topic producer (actually its EPR), a list of topics, an operational scope and a security manager and un-registers such topics from the IS-Notifier;
• unregisterISNotification() – which takes as input parameter a message containing the topic producer (actually its EPR), a list of topics, an operational scope and a security manager and un-registers such topics from the IS-Notifier;
• updateGCUBEResource() – which takes as input parameter a message containing a resource, an operational scope and a security manager and updates a resource previously registered in the IS.