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<div class="moz-cite-prefix">I could not reproduce the issue.. <br>
could you submit a self-contained, obfuscated test case (DRL +
classes)?<br>
I suspect you are leaving out some detail which is the real cause
of the error<br>
Thanks<br>
Davide<br>
<br>
p.s. I used this mock class:<br>
<br>
<pre>package vrpn;</pre>
<pre>
public class TrackerRemote {</pre>
<pre>
public TrackerUpdate getUpdate() {</pre>
<pre> return new TrackerUpdate();</pre>
<pre> }</pre>
<pre>
public class TrackerUpdate {</pre>
<pre>
}</pre>
<pre>}</pre>
<br>
and your rule, removing the "message" from the RHS<br>
<br>
<br>
<br>
On 07/30/2013 01:51 AM, De Rooms Brecht wrote:<br>
</div>
<blockquote cite="mid:51F77E89.5010600@vub.ac.be" type="cite">
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<div class="moz-cite-prefix">Op 24/07/2013 14:24, Davide Sottara
schreef:<br>
</div>
<blockquote cite="mid:51EFC77E.50703@gmail.com" type="cite">
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http-equiv="Content-Type">
<div class="moz-cite-prefix">Two clarifications first:<br>
<br>
1) Which version are you using?<br>
</div>
</blockquote>
I am using version 5.5<br>
<blockquote cite="mid:51EFC77E.50703@gmail.com" type="cite">
<div class="moz-cite-prefix"> 2) Is TrackerUpdate a static class
inside TrackerRemote? <br>
In case, could you post the exact "import" statements you are
using?<br>
<br>
</div>
</blockquote>
the TrackerUpdate is not static, but it's a class defined within
the TrackerUpdate class.<br>
<i><small>public class TrackerRemote<br>
....<br>
public class TrackerUpdate {<br>
public java.util.Date msg_time;<br>
public int sensor;<br>
public double[] pos;<br>
public double[] quat;<br>
<br>
public TrackerUpdate() { /* compiled code */ }<br>
}</small></i><br>
<br>
The full imports and rule is:<br>
package derooms.be.testRule<br>
import derooms.be.server.predefinedtypes.Event;<br>
import derooms.be.test.Message;<br>
import vrpn.TrackerRemote;<br>
<i><small><br>
rule "TrackerRemote.TrackerUpdate"<br>
when<br>
message:TrackerRemote.TrackerUpdate()<br>
then<br>
System.out.println("Tracker: " + message);<br>
end</small></i><br>
<br>
Sorry that I didn't sent it earlier, I actually sent this e-mail
already but it didn't came through.<br>
<br>
B<br>
<br>
<blockquote cite="mid:51EFC77E.50703@gmail.com" type="cite">
<div class="moz-cite-prefix"> Thanks<br>
Davide<br>
<br>
On 07/24/2013 02:14 PM, De Rooms Brecht wrote:<br>
</div>
<blockquote cite="mid:51EFC517.1060508@vub.ac.be" type="cite">
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
Dear rules users,<br>
<br>
I am currently writing my own Drools-server since I wanted
more control than the drools-execution server (and it never
worked very well here) where I can send rules/facts over
JMS/AQMP/STOMP. Rules which are sent are saved on the
server-side in DRL files that are monitored. That way, I can
debug easily by changing the sent files. However, when I sent
the following code, the agent does not provide me with an
error message at all and hangs: <br>
<small><i><br>
</i><i>rule "TrackerRemote.TrackerUpdate"</i><i><br>
</i><i> when</i><i><br>
</i><i> message:TrackerRemote.TrackerUpdate()</i><i><br>
</i><i> then</i><i><br>
</i><i> System.out.println("Tracker: " + message);</i><i><br>
</i><i>end</i></small><br>
<br>
at first I thought it was because TrackerRemote.TrackerUpdate
is not in that package anymore and thus unknown so I tried to
send the rule listed below which gives me the nice and
expected error:<br>
Unable to resolve ObjectType 'NotExistingType' : [Rule
name='Foo']<br>
<small><br>
<i>rule "Foo"</i><i><br>
</i><i> when </i><i><br>
</i><i> NotExistingType( bloe == "test")</i><i><br>
</i><i> then</i><i><br>
</i><i> System.out.println("this should not work");</i><i><br>
</i><i>end</i></small><br>
<br>
when I compile the rule myself with a KnowledgeBuilder:<br>
<br>
<small>KnowledgeBuilder kbuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder();<br>
InputStream is = new
ByteArrayInputStream(drlstring.getBytes());<br>
kbuilder.add(
ResourceFactory.newInputStreamResource(is),ResourceType.DRL
);</small><br>
<br>
I receive the error: <br>
org.drools.rule.Rule cannot be cast to org.drools.rule.Query<br>
which I think doesn't tell me anything about the mistake I
made in my rule, is this a Drools bug and should I post this
somewhere?<br>
<br>
Kind Regards,<br>
De Rooms Brecht<br>
<br>
<br>
Full Stack:<br>
java.lang.ClassCastException: org.drools.rule.Rule cannot be
cast to org.drools.rule.Query<br>
at
org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:175)<br>
at
org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:118)<br>
at
org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:67)<br>
at
org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:84)<br>
at
org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:2706)<br>
at
org.drools.compiler.PackageBuilder.compileRules(PackageBuilder.java:930)<br>
at
org.drools.compiler.PackageBuilder.compileAllRules(PackageBuilder.java:839)<br>
at
org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:831)<br>
at
org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:467)<br>
at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:673)<br>
at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:45)<br>
at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:34)<br>
at
derooms.be.server.listeners.RulesListener.processMessage(RulesListener.java:33)<br>
at
derooms.be.server.listeners.AbstractListener.onMessage(AbstractListener.java:35)<br>
at
org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1321)<br>
at
org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)<br>
at
org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)<br>
at
org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:129)<br>
at
org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:47)<br>
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)<br>
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)<br>
at java.lang.Thread.run(Thread.java:722)<br>
<br>
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