[jira] [Commented] (NIFI-6852) CTL doesn't work in ExecuteGroovyScript processor with Apache NiFi 1.10.0

["Dmitry Lukyanov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-6852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16969445#comment-16969445 ] 

Dmitry Lukyanov commented on NIFI-6852:
---------------------------------------

Details about this bug:

 

In {{ExecuteGroovyScript}} processor it's possible to define {{CTL.*}} parameters with link to {{ControllerService}} by  {{ControllerService.class}}

It means any controller service could be linked to this property.

Dynamic property definition in ExecuteGroovyScript.java|https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-groovyx-bundle/nifi-groovyx-processors/src/main/java/org/apache/nifi/processors/groovyx/ExecuteGroovyScript.java#L427]:

 
{code:java}
if (property.getKey().getName().startsWith("CTL.")) { 
   //get controller service 
   ControllerService ctl = context.getProperty(property.getKey()).asControllerService(ControllerService.class); 
   CTL.put(property.getKey().getName().substring(4), ctl); 
} else ...
{code}
However, when you define any property with name {{CTL.*}} ( * - means any name ) then
 there is an error message on nifi screen

!NIFI_CTL.png! 
  
 And seems the error raised in [AbstractComponentNode.java|https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core-api/src/main/java/org/apache/nifi/controller/AbstractComponentNode.java#L746]:
{code:java}
        final boolean matchesApi = matchesApi(extensionManager, controllerServiceBundle, controllerServiceApiCoordinate);

        if (!matchesApi) {
            final String controllerServiceType = controllerServiceNode.getComponentType();
            final String controllerServiceApiType = controllerServiceApiClass.getSimpleName();

            final String explanation = new StringBuilder()
                .append(controllerServiceType).append(" - ").append(controllerServiceCoordinate.getVersion())
                .append(" from ").append(controllerServiceCoordinate.getGroup()).append(" - ").append(controllerServiceCoordinate.getId())
                .append(" is not compatible with ").append(controllerServiceApiType).append(" - ").append(controllerServiceApiCoordinate.getVersion())
                .append(" from ").append(controllerServiceApiCoordinate.getGroup()).append(" - ").append(controllerServiceApiCoordinate.getId())
                .toString();

            return createInvalidResult(serviceId, propertyName, explanation);
{code}

Could somebody explain the validation above?

> CTL doesn't work in ExecuteGroovyScript processor with Apache NiFi 1.10.0
> -------------------------------------------------------------------------
>
>                 Key: NIFI-6852
>                 URL: https://issues.apache.org/jira/browse/NIFI-6852
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 1.10.0
>            Reporter: Behrouz
>            Priority: Major
>         Attachments: NIFI_CTL.png
>
>
> more information is available in this stackoverflow question:
> [https://stackoverflow.com/questions/58731092/why-ctl-doesnt-work-in-executegroovyscript-processor-with-apache-nifi-1-10-0]
> according to daggett comment in stackoverflow the source of error seems to be [https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core-api/src/main/java/org/apache/nifi/controller/AbstractComponentNode.java#L746|http://example.com/]



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