Op 24/07/2013 14:24, Davide Sottara schreef:
Two clarifications first:
1) Which version are you using?
I am using version 5.5
2) Is TrackerUpdate a static class inside TrackerRemote?
In case, could you post the exact "import" statements you are using?
the TrackerUpdate is not static, but it's a class defined within the
TrackerUpdate class.
/public class TrackerRemote
....
public class TrackerUpdate {
public java.util.Date msg_time;
public int sensor;
public double[] pos;
public double[] quat;
public TrackerUpdate() { /* compiled code */ }
}/
The full imports and rule is:
package derooms.be.testRule
import derooms.be.server.predefinedtypes.Event;
import derooms.be.test.Message;
import vrpn.TrackerRemote;
/
rule "TrackerRemote.TrackerUpdate"
when
message:TrackerRemote.TrackerUpdate()
then
System.out.println("Tracker: " + message);
end/
Sorry that I didn't sent it earlier, I actually sent this e-mail already
but it didn't came through.
B
Thanks
Davide
On 07/24/2013 02:14 PM, De Rooms Brecht wrote:
> Dear rules users,
>
> 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:
> /
> //rule "TrackerRemote.TrackerUpdate"//
> // when//
> // message:TrackerRemote.TrackerUpdate()//
> // then//
> // System.out.println("Tracker: " + message);//
> //end/
>
> 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:
> Unable to resolve ObjectType 'NotExistingType' : [Rule
name='Foo']
>
> /rule "Foo"//
> // when //
> // NotExistingType( bloe == "test")//
> // then//
> // System.out.println("this should not work");//
> //end/
>
> when I compile the rule myself with a KnowledgeBuilder:
>
> KnowledgeBuilder kbuilder =
> KnowledgeBuilderFactory.newKnowledgeBuilder();
> InputStream is = new ByteArrayInputStream(drlstring.getBytes());
> kbuilder.add(
> ResourceFactory.newInputStreamResource(is),ResourceType.DRL );
>
> I receive the error:
> org.drools.rule.Rule cannot be cast to org.drools.rule.Query
> 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?
>
> Kind Regards,
> De Rooms Brecht
>
>
> Full Stack:
> java.lang.ClassCastException: org.drools.rule.Rule cannot be cast to
> org.drools.rule.Query
> at
> org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:175)
> at
> org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:118)
> at
> org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:67)
> at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:84)
> at
> org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:2706)
> at
> org.drools.compiler.PackageBuilder.compileRules(PackageBuilder.java:930)
> at
> org.drools.compiler.PackageBuilder.compileAllRules(PackageBuilder.java:839)
> at
> org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:831)
> at
> org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:467)
> at
> org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:673)
> at
> org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:45)
> at
> org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:34)
> at
> derooms.be.server.listeners.RulesListener.processMessage(RulesListener.java:33)
> at
> derooms.be.server.listeners.AbstractListener.onMessage(AbstractListener.java:35)
> at
>
org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1321)
> at
>
org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)
> at
>
org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)
> at
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:129)
> at
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:47)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
>
>
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