[Blue-devel] New Dynamic Registry Code

[Rob B. <rob...@ar...>]

All,

I've checked in new Dynamic registry code. It's now under 
blue/java/registry/org/blue/registry. I've moved it over to using Jboss 
Remoting and the required library is under blue/java/registry/lib. If 
people could take the time to review the concepts and leave comments 
that would be appreciated.

My basic thoughts on how the registry is to work includes the following:

1: We extend blue.cfg with a new option registrar_config. This allows 
the user to specify a .cfg file that contains the configuration 
information for the registrar. Within the registrar config the user can 
specify the port on which it is to run, the transport it is to use, 
whether it accepts multicast requests to register, are we actually 
allowing dynamic registration. 
 
2: Based around the above configuration file, the registry is started 
within Blue. 
 
3: The user must specify a range of templates for dynamic registration. 
These in effect identify a "type" of remote host. So for instance my 
remote host could be of type "remote-db". The user defines a template 
for hosts of type remote-db that define what services are to monitored, 
who should be contacted and the method in which the monitoring is 
conducted. 
 
4: The registry simply listens for requests from remote agents to 
register with Blue. When a request is received, the registry checks 
against it's known templates. If the remote agent identifies itself as a 
known template type, the registry writes into the configuration file 
mentioned above the new configuration for the remote host. 
 
5: The registry then writes to the external command file asking Blue to 
check for the latest hosts that have been added.


Rich, if you could get your work on the new inventory features of Blue 
checked in when you have the chance that would be appreciated.

cheers

Rob

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