Richard Wallace wrote:
Hey again,The registry is the mechanisms used by blocks to export the services establisted by their respective implementations. It will be important in respect to block level assembly (which is not in place yet). Currently the machinery is in place for capturing the service export and these are expressed as URLs.
On Tue, 2003-01-21 at 18:59, Stephen McConnell wrote:
Sounds to me like you should be creating a Block instead of stuffingI did number one from above. I've got everything else setup properly. I have the jars in the WEB-INF/lib and just use the Tomcat ClassLoader
around with bootstrapping.
1. create an EngineClassLoader
* this means referencing externally located jar files
containing the components you want to use
* if the web app is not running as a component within
Merlin then you will need to create the logging system (see
the engine test case in the assembly package for an
example)
2. create a block
* create a appliance context and populate it with
everything it needs
* use the engine to create the block using the appliance
context as an argument
see DefaultBlockLoader.createBlock( ...) for an example
3. start the block
to create the EngineClassLoader. That worked out well.
I'm having some problems with step two. Everywhere I look there is a
reference to the registry, even in the DefaultBlockLoader.createBlock()
method. It seems to play an important role.
But, every time I try andI'm looking into this now - basically uping the error handling because I think the problem is occuring somewhere where I'm not expecting a problem. Will have some more news on this in a bit.
create an instance of the DefaultRegistry class I get the same
MalformedURLException saying "native" is an unknown protocol. My guess
is that Tomcat sets the URLStreamHandler so when the DefaultRegistry
tries to set it again, it fails. I haven't been able to find anywhere
where this might be configurable in Tomcat v4.1.18 (so I can tell it
what to use).
Sylvain Wallez is the guy who is working on this. I've been looking over the package but I havn't go too far (not much documetation the last time looked but I know Sylvain has been working on this). Have CC'ed Sylvain with the objective of pulling him into this discussion.You mentioned something about using Excalibur source resolver instead of the current setup. Any progress on that so far? I think I might be kinda at a standstill until this gets resolved. I'd be willing to help if you could give me direction.
Cheers, Steve.
Thanks.
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