[rules-users] Drools and Jersey

mike mikemps at gmail.com
Wed Mar 14 11:41:32 EDT 2012


Hi Mauricio,

Thank you for the speedy reply. Ia m making rest call to web services using
jersey. I simplified the rule to the max. The 'when' is not really needed.
I get the exception on the call to "new Client()". Please keep in mind it
works without dialect "mvel".

Thank you very much
Mike

Here's the stack trace .............
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.<init>(Unknown Source)
at org.mvel2.CompileException.showCodeNearError(CompileException.java:149)
at
org.mvel2.CompileException.generateErrorMessage(CompileException.java:219)
at org.mvel2.CompileException.toString(CompileException.java:62)
at java.lang.Throwable.<init>(Throwable.java:242)
at java.lang.Exception.<init>(Unknown Source)
at java.lang.RuntimeException.<init>(Unknown Source)
at
org.drools.runtime.rule.ConsequenceException.<init>(ConsequenceException.java:31)
at
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1101)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1029)
at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1251)
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:709)
at
org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:673)
at
org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218)
at com.ultimatesoftware.engine.tests.Wip.drools_new_client(Wip.java:32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:69)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:48)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.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)



2012/3/14 Mauricio Salatino <salaboy at gmail.com>

> what are you trying to do?
> what's the error?
>
> the rule should look like
>
> rule "create Rest Client"
>     when
>     then new Client();
> end
>
> 2012/3/14 mike <mikemps at gmail.com>
>
>> Hi there,
>>
>> I am trying to make rest calls from Drools. For that I am using Jersey
>> http://jersey.java.net/. I cannot no get it to work if I use mvel,
>> otherwise it works fine.
>>
>> Here is a sample rule:
>> ----------------------------------------------------------
>> import com.sun.jersey.api.client.Client;
>>
>> dialect  "mvel"
>>
>> rule "create Rest Client"
>>     then new Client();
>> end
>> ----------------------------------------------------------
>>
>> I would love to be able to use mvel since it curves java syntax :)
>>
>> Thank you
>> Mike
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>
>
> --
>  - MyJourney @ http://salaboy.wordpress.com
>  - Co-Founder @ http://www.jugargentina.org
>  - Co-Founder @ http://www.jbug.com.ar
>
>  - Salatino "Salaboy" Mauricio -
>
>
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