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Maxim Veksler wrote:
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cite="mid:b400c69a0811160115h4222db10vfd14d0bcf4c4c9da@mail.gmail.com"
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<pre wrap="">Hello Andrew
On Sat, Nov 15, 2008 at 11:50 PM, Andrew Waterman
<a class="moz-txt-link-rfc2396E" href="mailto:andrew.waterman@gmail.com"><andrew.waterman@gmail.com></a> wrote:
</pre>
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<pre wrap="">Hi Maxim,
We too use drools from within a web container. The way that I've debugged
my runtime issues (and this may not be the most efficient way at all) is
simply through jUnit tests that replicate error conditions during build
time. Depending on what you're up to, you can often insert the same data
into working memory that you are explicitly inserting on the server-side.
Of course, this is a pretty obvious solution, but I've found it to be a
help with debugging my rules. If you upgrade to the new Drools 5.0 plugin
for eclipse, stepping through the rules code is pretty easy, and, I believe,
also possible with 4.0.7 setups. Of course, this may not help with an error
condition triggered on large groups of data, or something specific to the
container. With regards to the container, we also run a set of integration
tests that manipulate our rules through local handles to the EJBs that I use
to work with Drools. Both approaches have helped us out a great deal, but
we are activating Drools statelessly.
best wishes,
Andrew
</pre>
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<pre wrap=""><!---->
Thank you for the details answer Andres.
Trouble is this is not enough, I want to be able to debug runtime
data. I don't mind this "runtime" will be running from my Eclipse
instance but I need to be running from within the Servlet.
Does someone knows, perhaps one of the devs? How the drools plugin
speaks with the WM?
</pre>
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Remote debugging is not possible. What you can do is turn on the audit
log, or even add your own set of listeners, to create an execution
trace of the engine and it's actions.<br>
<br>
Mark<br>
<blockquote
cite="mid:b400c69a0811160115h4222db10vfd14d0bcf4c4c9da@mail.gmail.com"
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<pre wrap="">Maybe we could write some interface that would allow to poll it "from
outside" - That is from something that is running in a different
project.
</pre>
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<pre wrap="">On Sat, Nov 15, 2008 at 12:57 PM, Maxim Veksler <a class="moz-txt-link-rfc2396E" href="mailto:maxim.veksler@gmail.com"><maxim.veksler@gmail.com></a>
wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Hello
We are using MyEclipse extension to launch a webapp that contains Drools.
I would like to debug the WorkingMemory state of this webapp.
>From reading the user guide I see that suggested method of debugging a
drools application is launching the Main class, as my application is a
webapp the concept of a Main class does not exists.
How should I debug Drools from in this case?
Can I maybe remote connect or instruct Drools to simply treat the running
JVM as a "Drools Application" when in fact it was launched by Apache Tomcat
servlet ?
Thank you,
Maxim.
--
Cheers,
Maxim Veksler
"Free as in Freedom" - Do u GNU ?
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<pre wrap="">
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<pre wrap=""><!---->
</pre>
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