Well, I've now come up with this block.xml:
<container name="hello">
<classloader> <classpath> <repository> <resource id="avalon-framework:avalon-framework-impl" version="4.1.5"/> </repository> <fileset dir="/home_local/jpermar/midcvs/perseus/output/classes"> <include name="**/*.class"/> </fileset> </classpath> </classloader>
<component name="hello" class="edu.mit.ll.perseus.hello.HelloComponent"/>
</container>
But now I'm still getting the ClassNotFoundException: ------cause--------------------------------- Exception: java.lang.ClassNotFoundException Message: edu.mit.ll.perseus.hello.HelloComponent
How can I turn on the merlin debug?
Create a merlin.properties file in the directory your running merlin in with the following content:
merlin.info = true merlin.debug = true
Stephen.
I'm sure the directory in the block.xml is correct, and I'm sure the class is there, but merlin still isn't finding it (just want to see what the classloader classpath is at run-time).
Justin
---- Original message ----
Date: Mon, 03 May 2004 20:16:48 +0200
From: Stephen McConnell <[EMAIL PROTECTED]> Subject: Re: running hello component To: Avalon framework users <[EMAIL PROTECTED]>
Justin Permar wrote:
OK, I can tell I'm very close now. Last thing.. how do I defin e the initial classpath? I set the CLASSPATH environment variable, but merlin seems not to use it...
I need to just find the HelloComponent.class reference in block.xml
Two options ...
(a) bundle (b) go independent
To bundle means that you include a block definitions (the xml
file
containing your container definition) in the jar file you
generate under
the path /BLOCK-INF/block.xml. Then if you run merlin a
provide the jar
file as an argument then merlin will look into the jar, find
the block
and deploy it and add the jar to the blocks classloader
implicitly.
The other option is to go independent - ie. to provide merlin
with a
pure block definition (the xml file containing the container
spec). In
this case the <container>'s <classloader>'s <classpath> needs
to include
the jar file you have created - and the jar file needs to
exist in
either the local cache or a remote repository.
Cheers, Steve.
Justin
---- Original message ----
Date: Mon, 03 May 2004 19:48:02 +0200
From: Stephen McConnell <[EMAIL PROTECTED]> Subject: Re: running hello component To: Avalon framework users <[EMAIL PROTECTED]>
Justin Permar wrote:
That doesn't work for us. No internet access.
I've actually removed the <host> references from both kernel.xml and debug.xml.
What I need of course then is a local repository. So.. back to my original question: what do I make to specify this artifact, and the jars related to the artifact? I'm assuming there's a file in ibiblio.org that I can just get and place locally? Then I can just add that location to kernel.xml as a file reference:
<host path="file:///my/local/repository/directory"/>
Does that sound right?
That perfectly reasonable.
What your defining is a remote repository that happens to be
hosted on
your local file system. Assuming that your local repository
has the
resource in [repo]/[group]/jars/[artifact-name][-[version]]
then your
cooking on gas.
Cheers, Stephen.
Justin
---- Original message ----
Date: Tue, 4 May 2004 00:39:28 +0800
From: Niclas Hedhman <[EMAIL PROTECTED]> Subject: Re: running hello component To: "Avalon framework users" <[EMAIL PROTECTED]>
On Tuesday 04 May 2004 00:20, Justin Permar wrote:
<resource
id="avalon-framework:avalon-framework-impl"
version="4.1.5"/>
This is part of Merlin's internals (I think), but even if it
wasn't, Merlin
will download it on-demand from a central repository. So, for your own components, you can either define your Jars
directly (not
strongly recommended) or use a central repository, where
things are picked up
on demand. Also, while developing and using Maven, if you
call the
jar:install goal, the JAR will be copied to the local
repository on your
computer, and be used between projects.
I know that's not complete, though, because I don't specify anything about resource
avalon-framework:avalon-framework-impl
---------------------------------------------------------------------which I need to run my component.
Translation happens so that the above becomes; avalon-framework/jars/avalon-framework-impl-4.1.5.jar And is looked up, first in the local repository, and then in
each central
repository that has been defined, for instance http://www.ibiblio.org/maven/avalon-framework/jars/avalon-framework-impl-4.1.5.jar
You can even bootstrap Merlin itself from the command-line
over the net, by
the same underlying mechanism... (I explain that elsewhere).
Anything else that is unclear?
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