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checkout the unit test test, hopefully that should help:<br>
<a class="moz-txt-link-freetext" href="http://anonsvn.labs.jboss.com/labs/jbossrules/trunk/drools-pipeline/drools-transformer-smooks/src/test/java/org/drools/runtime/pipeline/impl/SmookStatefulSessionTest.java">http://anonsvn.labs.jboss.com/labs/jbossrules/trunk/drools-pipeline/drools-transformer-smooks/src/test/java/org/drools/runtime/pipeline/impl/SmookStatefulSessionTest.java</a><br>
<br>
Mark<br>
Dave Macpherson wrote:
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<p><span style="font-size: 10pt; font-family: "Arial","sans-serif";">Hey
guys
(Drools newbie here)</span> <o:p></o:p></p>
<p><span style="font-size: 10pt; font-family: "Arial","sans-serif";">I'm
*attempting* to use the Drools/Smooks pipeline functionality to insert
facts
into my knowledgebase and I'm having a little trouble figuring out
exactly how
to do this. I've read the API docs for the 5.0.0.M5 and looked at the
test
cases but I guess I'm still not quite getting it, so I'm hoping someone
here
can point me in the right direction.</span><o:p></o:p></p>
<p><span style="font-size: 10pt; font-family: "Arial","sans-serif";">I've
got an
XML file defined basically like this:</span> <o:p></o:p></p>
<p><span style="font-size: 10pt; font-family: "Arial","sans-serif";"><submission></span>
<br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<facility></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<faccode>xxx</faccode></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
</facility></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<lineitem></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<acctcode>xxxx</acctcode></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<amount>999</amount></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<lineitem></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<lineitem></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<acctcode>xxxx</acctcode></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<amount>999</amount></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";">
<lineitem></span> <br>
<span style="font-size: 10pt; font-family: "Arial","sans-serif";"><submission></span>
<o:p></o:p></p>
<p><span style="font-size: 10pt; font-family: "Arial","sans-serif";">Within
the
XML file, there is 1 and only 1 "facility" node and multiple
"lineitem" nodes. I'd like to use the DroolsSmooks pipleline
functionality to use Smooks to insert 1 "facility" fact and multiple
"lineitem" facts into my knowledgbase.</span><o:p></o:p></p>
<p><span style="font-size: 10pt; font-family: "Arial","sans-serif";">The
code
I've written to do this is similar to the following (taken from sample
test
code I've seen in the Drools source):</span><o:p></o:p></p>
<p style="margin-left: 36pt;"><span
style="font-size: 10pt; font-family: "Courier New";">StatefulKnowledgeSession
ksession = kbase.newStatefulKnowledgeSession();</span> <br>
<span style="font-size: 10pt; font-family: "Courier New";">Action
executeResultHandler = PipelineFactory.newExecuteResultHandler();</span>
<br>
<span style="font-size: 10pt; font-family: "Courier New";">KnowledgeRuntimeCommand
insertStage = PipelineFactory.newStatefulKnowledgeSessionInsert();</span>
<br>
<span style="font-size: 10pt; font-family: "Courier New";">insertStage.setReceiver(executeResultHandler);</span>
<br>
<span style="font-size: 10pt; font-family: "Courier New";">Smooks
smooks = new
Smooks("smooks-config.xml");</span> <br>
<span style="font-size: 10pt; font-family: "Courier New";">Transformer
transformer = PipelineFactory.newSmooksFromSourceTransformer(smooks,
"root");</span> <br>
<span style="font-size: 10pt; font-family: "Courier New";">transformer.setReceiver(insertStage);</span>
<br>
<span style="font-size: 10pt; font-family: "Courier New";">Pipeline
pipeline =
PipelineFactory.newStatefulKnowledgeSessionPipeline(ksession);</span> <br>
<span style="font-size: 10pt; font-family: "Courier New";">pipeline.setReceiver(transformer);</span>
<br>
<span style="font-size: 10pt; font-family: "Courier New";">ResultHandlerImpl
resultHandler = new ResultHandlerImpl();</span> <br>
<span style="font-size: 10pt; font-family: "Courier New";">pipeline.insert(ResourceFactory.newClassPathResource("submission.xml"),
resultHandler );</span> <o:p></o:p></p>
<p><span style="font-size: 10pt; font-family: "Arial","sans-serif";">While
stepping through the above code, the last line returns an NPE. I've
tried
playing with the "Transformer transformer - PipeLineFactory…" line,
substituting "root" for something else and it goes into an infinite
loop. What is the purpose of the "root" value being set in this line?</span><o:p></o:p></p>
<p><span style="font-size: 10pt; font-family: "Arial","sans-serif";">Can
anyone
tell me if I'm even on the right track here, or am I misunderstanding
what the
Smooks data loader can do for me?</span><o:p></o:p></p>
<p><span style="font-size: 10pt; font-family: "Arial","sans-serif";">Regards,
<o:p></o:p></span></p>
<p><span
style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Dave<o:p></o:p></span></p>
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