The way you're doing it is fine. Otherwise, you could continue to send
document fragments containing just a "defrule" element and then do this:
Rete engine = ...
JessSAXParser parser = new JessSAXParser(engine, "defrule");
parser.parse(...)
Yes, I know the Javadoc says otherwise, but it will work anyway.
On Jul 29, 2010, at 5:34 AM, Pierre de Leusse wrote:
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>></name>
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---------------------------------------------------------
Ernest Friedman-Hill
Informatics & Decision Sciences Phone: (925) 294-2154
Sandia National Labs
PO Box 969, MS 9012 [email protected]
Livermore, CA 94550 http://www.jessrules.com
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