[jira] [Created] (NIFI-4762) unable to use groovy from InvokeScriptedProcessor

["Martin Mucha (JIRA)" <ji...@apache.org>]

Martin Mucha created NIFI-4762:
----------------------------------

             Summary: unable to use groovy from InvokeScriptedProcessor
                 Key: NIFI-4762
                 URL: https://issues.apache.org/jira/browse/NIFI-4762
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core Framework
    Affects Versions: 1.4.0
            Reporter: Martin Mucha



Having following groovy, which just creates flowfile with sample json. Processor is configured such that it has script body in scriptBody property, while other property is empty.

{code:groovy}


import org.apache.nifi.processor.AbstractProcessor
import org.apache.nifi.processor.ProcessContext
import org.apache.nifi.processor.ProcessSession
import org.apache.nifi.processor.Relationship
import org.apache.nifi.processor.io.OutputStreamCallback

class GenerateJsonProcessor extends AbstractProcessor{

    def REL_SUCCESS = new Relationship.Builder().name("success").description('FlowFiles that were successfully processed are routed here').build()

    @Override
    Set<Relationship> getRelationships() {
        return Collections.singleton(REL_SUCCESS)
    }

    @Override
    void onTrigger(ProcessContext context, ProcessSession session) {
        def newFlowFile = session.create()
        def json = "{}"

        session.write(newFlowFile, new OutputStreamCallback() {
            @Override
            void process(OutputStream out) throws IOException {
                def writer = new OutputStreamWriter(out);
                writer.write(json)
                writer.close()
            }
        })

        session.transfer(newFlowFile, REL_SUCCESS)
//            session.commit()
    }
}

processor = new GenerateJsonProcessor()

{code}


produces following error:


{code:log}
java.lang.reflect.UndeclaredThrowableException: null
        at com.sun.proxy.$Proxy137.validate(Unknown Source)
        at org.apache.nifi.processors.script.InvokeScriptedProcessor.customValidate(InvokeScriptedProcessor.java:465)
        at org.apache.nifi.components.AbstractConfigurableComponent.validate(AbstractConfigurableComponent.java:126)
        at org.apache.nifi.controller.AbstractConfiguredComponent.validate(AbstractConfiguredComponent.java:329)
        at org.apache.nifi.controller.StandardProcessorNode.isValid(StandardProcessorNode.java:969)
        at org.apache.nifi.controller.FlowController.getProcessorStatus(FlowController.java:2976)
        at org.apache.nifi.controller.FlowController.getGroupStatus(FlowController.java:2571)
        at org.apache.nifi.controller.FlowController.getGroupStatus(FlowController.java:2513)
        at org.apache.nifi.controller.FlowController.getGroupStatus(FlowController.java:2485)
        at org.apache.nifi.controller.FlowController.getControllerStatus(FlowController.java:2473)
        at org.apache.nifi.reporting.SiteToSiteProvenanceReportingTask.onTrigger(SiteToSiteProvenanceReportingTask.java:227)
        at org.apache.nifi.controller.tasks.ReportingTaskWrapper.run(ReportingTaskWrapper.java:41)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: javax.script.ScriptException: java.lang.NullPointerException
        at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.invokeImpl(GroovyScriptEngineImpl.java:405)
        at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.access$100(GroovyScriptEngineImpl.java:98)
        at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl$3.invoke(GroovyScriptEngineImpl.java:446)
        ... 19 common frames omitted
Caused by: java.lang.NullPointerException: null
        at java.io.File.<init>(File.java:277)
        at org.apache.nifi.processor.util.StandardValidators$FileExistsValidator.validate(StandardValidators.java:784)
        at org.apache.nifi.components.PropertyDescriptor.validate(PropertyDescriptor.java:200)
        at org.apache.nifi.components.AbstractConfigurableComponent.validate(AbstractConfigurableComponent.java:116)
        at sun.reflect.GeneratedMethodAccessor489.invoke(Unknown Source)

{code}

where error lies outside of written code. I'd assume, that this line:
org.apache.nifi.processor.util.StandardValidators$FileExistsValidator.validate(StandardValidators.java:784)

is the most relevant from this stacktrace. Why are we validating `null` valued file for existence?




--
This message was sent by Atlassian JIRA
(v6.4.14#64029)