5:33 a.m.
I've been using the Rete DSL a lot these days and was thinking that it could
be a good idea to provide some Eclipse infra-structure (syntax highlighting,
code completion, validation) to it using Xtext (
http://www.eclipse.org/Xtext/). It's built on top of antlr, so maybe we
could even reuse the grammar that we already have. I know that, by default,
you should right you grammar using their simplified version.
Maybe the guys there would also be interested in providing something to
Drools. It could be a showcase for them.
Not sure if this also applies to the Eclipse DRL things that we have.
Cheers,
Leonardo.
5:58 a.m.
On 08/11/2010 10:33, Leonardo Gomes wrote:
I've been using the Rete DSL a lot these days and was thinking
that it
could be a good idea to provide some Eclipse infra-structure (syntax
highlighting, code completion, validation) to it using Xtext
(http://www.eclipse.org/Xtext/). It's built on top of antlr, so maybe
we could even reuse the grammar that we already have. I know that, by
default, you should right you grammar using their simplified version.
sure could be
intersting.
I'd be careful about doing too much work, as I'm gonna need to see the
testing framework updated, so that it an unit test the new rete data
structures I have for collection oriented match.
I'm also wondering if we might be better served using a type safe Scala
datastructure/dsl....
Mark
Maybe the guys there would also be interested in providing something
to Drools. It could be a showcase for them.
Not sure if this also applies to the Eclipse DRL things that we have.
Cheers,
Leonardo.
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9:52 a.m.
Leonardo,
I did prototyped a Rete DSL editor with Xtext when I was developing
the grammar for this. The reason in the end for me to drop it is that
we need the parser running in core to execute the tests quickly during
build and the parser generated by XText requires the addition of
several dependencies (due to the instrumentation it does) that we
don't want in core.
Since it is something that is of use for basically 3 people in the
whole world (me, you and mark)... :) I did not wanted to spend more
time figuring a way to either allow the parser to be "cleaned up"
somehow for inclusion in core without the dependencies or a way to
make a separate module that would be responsible for testing Rete.
Of course, if someone wants to step up and do it, we would not
oppose, but there are lots of other priorities in our plates
already... :(
Edson
2010/11/8 Mark Proctor <mproctor(a)codehaus.org>:
On 08/11/2010 10:33, Leonardo Gomes wrote:
I've been using the Rete DSL a lot these days and was thinking that it could
be a good idea to provide some Eclipse infra-structure (syntax highlighting,
code completion, validation) to it using Xtext
(http://www.eclipse.org/Xtext/). It's built on top of antlr, so maybe we
could even reuse the grammar that we already have. I know that, by default,
you should right you grammar using their simplified version.
sure could be intersting.
I'd be careful about doing too much work, as I'm gonna need to see the
testing framework updated, so that it an unit test the new rete data
structures I have for collection oriented match.
I'm also wondering if we might be better served using a type safe Scala
datastructure/dsl....
Mark
Maybe the guys there would also be interested in providing something to
Drools. It could be a showcase for them.
Not sure if this also applies to the Eclipse DRL things that we have.
Cheers,
Leonardo.
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--
Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com
10:37 a.m.
Ahh ok, I faced the same problem sometime I ago when I tried to use it in a
project and realize that it was really hard to do anything maven-related
with it!
It has improved a lot and I haven't looked at it since 1,5 years, at least.
So, maybe it's better now.
Anyway, it's as you said.. lot's of more important things. It passed through
my mind, because I'm really spending time with all the nodeTestCases that
I'm breaking these days :)
On Mon, Nov 8, 2010 at 3:52 PM, Edson Tirelli <tirelli(a)post.com> wrote:
Leonardo,
I did prototyped a Rete DSL editor with Xtext when I was developing
the grammar for this. The reason in the end for me to drop it is that
we need the parser running in core to execute the tests quickly during
build and the parser generated by XText requires the addition of
several dependencies (due to the instrumentation it does) that we
don't want in core.
Since it is something that is of use for basically 3 people in the
whole world (me, you and mark)... :) I did not wanted to spend more
time figuring a way to either allow the parser to be "cleaned up"
somehow for inclusion in core without the dependencies or a way to
make a separate module that would be responsible for testing Rete.
Of course, if someone wants to step up and do it, we would not
oppose, but there are lots of other priorities in our plates
already... :(
Edson
2010/11/8 Mark Proctor <mproctor(a)codehaus.org>:
> On 08/11/2010 10:33, Leonardo Gomes wrote:
>
> I've been using the Rete DSL a lot these days and was thinking that it
could
> be a good idea to provide some Eclipse infra-structure (syntax
highlighting,
> code completion, validation) to it using Xtext
> (http://www.eclipse.org/Xtext/). It's built on top of antlr, so maybe we
> could even reuse the grammar that we already have. I know that, by
default,
> you should right you grammar using their simplified version.
>
> sure could be intersting.
>
> I'd be careful about doing too much work, as I'm gonna need to see the
> testing framework updated, so that it an unit test the new rete data
> structures I have for collection oriented match.
>
> I'm also wondering if we might be better served using a type safe Scala
> datastructure/dsl....
>
> Mark
>
> Maybe the guys there would also be interested in providing something to
> Drools. It could be a showcase for them.
>
> Not sure if this also applies to the Eclipse DRL things that we have.
>
> Cheers,
> Leonardo.
>
> _______________________________________________
> rules-dev mailing list
> rules-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-dev
>
>
> _______________________________________________
> rules-dev mailing list
> rules-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-dev
>
>
--
Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com
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5:59 a.m.
What precisely do you mean by "Rete DSL"?
-W
On 8 November 2010 11:33, Leonardo Gomes <leonardo.f.gomes(a)gmail.com> wrote:
I've been using the Rete DSL a lot these days and was thinking
that it
could be a good idea to provide some Eclipse infra-structure (syntax
highlighting, code completion, validation) to it using Xtext (
http://www.eclipse.org/Xtext/). It's built on top of antlr, so maybe we
could even reuse the grammar that we already have. I know that, by default,
you should right you grammar using their simplified version.
Maybe the guys there would also be interested in providing something to
Drools. It could be a showcase for them.
Not sure if this also applies to the Eclipse DRL things that we have.
Cheers,
Leonardo.
_______________________________________________
rules-dev mailing list
rules-dev(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-dev
6:34 a.m.
On 08/11/2010 10:59, Wolfgang Laun wrote:
What precisely do you mean by "Rete DSL"?
-W
I wrote a low level testing DSL for rete networks a while back:
http://blog.athico.com/2009/11/rete-dsl-testing-harness.html
Hmm the new blog template needs some work....
You can see the tests here:
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-core/src...
The tests look a little like:
TestCase "Join Node assert/retract test case"
Setup
ObjectTypeNode:
otnLeft1, org.drools.Person;
LeftInputAdapterNode:
lian0, otnLeft1;
ObjectTypeNode:
otnRight1, org.drools.Person;
ObjectTypeNode:
otnRight2, org.drools.Person;
Binding:
p1, 0, org.drools.Person, age;
JoinNode:
join1, lian0, otnRight1;
age, !=, p1;
JoinNode:
join2, join1, otnRight2;
age, !=, p1;
Facts:
new org.drools.Person('darth', 35), new org.drools.Person('bobba',
36),
new org.drools.Person('yoda', 37), new org.drools.Person('luke',
38),
new org.drools.Person('dave', 33), new org.drools.Person('bob', 32);
Test "Assert/retract test"
/**
* check single left assertion and retraction
*/
assert:
otnLeft1, [h0];
join1:
leftMemory, [[h0]];
join2:
leftMemory, [];
retract:
otnLeft1, [h0];
/**
* check single right assertion and retraction
*/
assert:
otnRight1, [h1];
join1:
rightMemory, [h1];
join2:
leftMemory, [];
retract:
otnRight1, [h1];
/**
* check single left then right assertion
*/
assert:
otnLeft1, [h0];
otnRight1, [h1];
join1:
leftMemory, [[h0]];
rightMemory, [h1];
join2:
leftMemory, [[h0, h1]];
retract:
otnLeft1, [h0];
otnRight1, [h1];
/**
* check single right then left assertion
*/
assert:
otnRight1, [h1];
otnLeft1, [h0];
join1:
leftMemory, [[h0]];
rightMemory, [h1] ;
join2:
leftMemory, [[h0, h1]];
retract:
otnLeft1, [h0];
otnRight1, [h1];
On 8 November 2010 11:33, Leonardo Gomes <leonardo.f.gomes(a)gmail.com
<mailto:leonardo.f.gomes@gmail.com>> wrote:
I've been using the Rete DSL a lot these days and was thinking
that it could be a good idea to provide some Eclipse
infra-structure (syntax highlighting, code completion, validation)
to it using Xtext (http://www.eclipse.org/Xtext/). It's built on
top of antlr, so maybe we could even reuse the grammar that we
already have. I know that, by default, you should right you
grammar using their simplified version.
Maybe the guys there would also be interested in providing
something to Drools. It could be a showcase for them.
Not sure if this also applies to the Eclipse DRL things that we have.
Cheers,
Leonardo.
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4916
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5 comments
4 participants
participants (4)
-
Edson Tirelli -
Leonardo Gomes -
Mark Proctor -
Wolfgang Laun