ODP: JESS: Problem when loading Rule as a String

Thanks for the quick and good answer W.

I've noticed that JessSAXParser expects a "rulebase" node and XMLVisitor
doesn't provide that node but instead a "rule" one. Manually inserting the
"rulebase" node (c.f. code below) seems to work. However this makes me think
that there must be a better way to do this. With XMLWriter maybe?

All the best,
Pierre

Code:
	if (element instanceof Defrule) {
		XMLVisitor toXML = new XMLVisitor((Defrule) element);
		String sTemp = "<rulebase>" + toXML.toString() +
"</rulebase>";
		kbs.add(sTemp);
	}



-----Wiadomość oryginalna-----
Od: [email protected] [mailto:[email protected]] W
imieniu Wolfgang Laun
Wysłano: Wednesday, July 28, 2010 6:30 PM
Do: [email protected]
Temat: Re: JESS: Problem when loading Rule as a String

If the String s contains XML, you should use a JessSAXParser. Jesp
parses only .clp.
-W

On 28 July 2010 15:46, Pierre de Leusse <[email protected]> wrote:
> Hello all,
>
>
>
> I receive a Jess rule through the network in XML format and when I try to
> load it in the Rete engine, it throws an error. I know the rule itself is
> valid.
>
>
>
> Am I doing something wrong?
>
>
>
> Thanks for the help and tips,
>
> Pierre
>
>
>
> Code:
>
> for (String s : rules){
>
> try {
>
>             StringReader read = new StringReader(s);
>
>             Jesp parser = new Jesp(read, Demo.engine.getEngine());
>
>             parser.parse(false);
>
>       } catch (JessException e) {
>
>             e.printStackTrace();
>
>       }
>
> }
>
>
>
> Error:
>
> Jess reported an error in routine Jesp.parseExpression.
>
>   Message: Expected a '(', constant, or global variable at token '&'.
>
>   Program text: &  at line 22 in file <unknown>.
>
>       at jess.Jesp.error(Unknown Source)
>
>       at jess.Jesp.parseExpression(Unknown Source)
>
>       at jess.Jesp.promptAndParseOneExpression(Unknown Source)
>
>       at jess.Jesp.parse(Unknown Source)
>
>       at jess.Jesp.parse(Unknown Source)
>
>       at
>
agh.edu.pl.soa.yield.jess.middleware.Functional.putRules(Functional.java:100
)
>
>       at
>
agh.edu.pl.soa.yield.jess.middleware.test.FunctionalTest.testPutRules(Functi
onalTest.java:59)
>
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>
>       at
>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
>
>       at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
>
>       at java.lang.reflect.Method.invoke(Method.java:597)
>
>       at junit.framework.TestCase.runTest(TestCase.java:154)
>
>       at junit.framework.TestCase.runBare(TestCase.java:127)
>
>       at junit.framework.TestResult$1.protect(TestResult.java:106)
>
>       at junit.framework.TestResult.runProtected(TestResult.java:124)
>
>       at junit.framework.TestResult.run(TestResult.java:109)
>
>       at junit.framework.TestCase.run(TestCase.java:118)
>
>       at junit.framework.TestSuite.runTest(TestSuite.java:208)
>
>       at junit.framework.TestSuite.run(TestSuite.java:203)
>
>       at
>
org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3T
estReference.java:130)
>
>       at
>
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:3
8)
>
>       at
>
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.java:467)
>
>       at
>
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRu
nner.java:683)
>
>       at
>
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.
java:390)
>
>       at
>
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner
.java:197)
>
>
>
>
>
> Which seems to come from the following line in the XML
>
>             <funcall>
>
>               <name>&gt;</name>




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