Jim Marino wrote:
Which code base are you intending to use: the M1 which implements the
"old" .9 spec or the sandbox one which implements support for the new
recursive model, or both?
In terms of how to specifically improve the extensibility story, my
opinions have been embodied in the sandbox code and presentation
Jeremy and I gave the other week (there are several slides providing
high-level overviews of how to extend things) :-) Comments on that
approach would be appreciated.
Jim
On Jun 19, 2006, at 6:25 PM, Jean-Sebastien Delfino wrote:
In order to better understand our extensibility story and how we can
improve it for M2, I'd like to experiment a little with our
extensibility APIs and try to develop two simple extensions:
- a jruby implementation extension (I won't be starting from scratch,
we already have an initial implementation, but I'll try to add
support for properties, references, lifecycle management, and
deployment maybe)
- a simple TCP/IP (socket) binding implementation
I'll bring any questions and issues I run into and improvement
proposals on the mailing list and I'm thinking about keeping track of
this on a Wiki page as well.
I'm going to start with the component implementation extension. If
anybody wants to help and start the TCP/IP binding extension, please
let me know and we can coordinate (I think we'll find common
techniques and patterns between the two).
--Jean-Sebastien
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I'm starting with both. Interestingly most of the differences between
the two sets of SPIs are not related to the spec changes to support
recursive composition, I found this surprising.
I'm also going to propose, in the form of prototypes, improvements to
the SPIs, there are good (and less good) things in both code streams,
and I'd like to try to combine the best of both.
Right now I'm prototyping this with the head stream, as I don't see yet
how to run a simple sample with the code in sandbox, I'm running into
the following issues:
- I cannot find TuscanyRuntime anymore, has this been removed? has the
mechanism for a client to bootstrap the runtime changed? is there a
sample anywhere?
- I was counting on the groovy container that you pointed me to
yesterday to understand better the new SPIs but I'm not able to build
it, the test cases fail with:
java.lang.NoSuchMethodError:
org.objectweb.asm.ClassVisitor.visit(IILjava/lang/String;Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;)V
at
org.codehaus.groovy.classgen.AsmClassGenerator.visitClass(AsmClassGenerator.java:317)
at
org.codehaus.groovy.control.CompilationUnit$7.call(CompilationUnit.java:690)
at
org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:956)
at
org.codehaus.groovy.control.CompilationUnit.classgen(CompilationUnit.java:629)
at
org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:464)
at
groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:300)
at
groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:262)
at
groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:257)
at
groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:233)
at
org.apache.tuscany.container.groovy.GroovyAtomicComponent.createInstance(GroovyAtomicComponent.java:77)
--
Jean-Sebastien
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