[jboss-jira] [JBoss JIRA] (WFCORE-731) TransformerAttachmentGrabber always returns null with map operations

[Radoslav Husar (JIRA)]

    [ https://issues.jboss.org/browse/WFCORE-731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13074045#comment-13074045 ] 

Radoslav Husar commented on WFCORE-731:
---------------------------------------

Thanks, this is uderstood and this is what I am doing I believe. The only difference is whether im transforming a map operation or any other operation:

{noformat}
            org.jboss.as.controller.transform.OperationTransformer clearPropertiesTransformer = new org.jboss.as.controller.transform.OperationTransformer() {
                @Override
                public TransformedOperation transformOperation(TransformationContext context, PathAddress address, ModelNode operation) throws OperationFailedException {
                    PropertiesAttachment attachment = context.getAttachment(PropertiesAttachment.KEY);

                    return new TransformedOperation(operation, OperationResultTransformer.ORIGINAL_RESULT);
                }
            };

            // attachment = null
            builder.addRawOperationTransformationOverride(MapOperations.MAP_CLEAR_DEFINITION.getName(), clearPropertiesTransformer);

            // attachment OK
            builder.addRawOperationTransformationOverride("undefine-attribute", clearPropertiesTransformer);
{noformat}

> TransformerAttachmentGrabber always returns null with map operations
> --------------------------------------------------------------------
>
>                 Key: WFCORE-731
>                 URL: https://issues.jboss.org/browse/WFCORE-731
>             Project: WildFly Core
>          Issue Type: Bug
>    Affects Versions: 2.0.0.Alpha3
>            Reporter: Radoslav Husar
>            Assignee: Kabir Khan
>             Fix For: 2.0.0.Alpha4
>
>
> Kabir, this thing seems a bit fragile. IIUC this was deviced primarily to address the issue with map operations not being transformable, but org.jboss.as.subsystem.test.TransformerAttachmentGrabber doesn't work with map operations, the attachment is always null.
> I think the problem is with the step order, in org.jboss.as.subsystem.test.TransformerAttachmentGrabber#execute because the real op being a map operation which does attach(...) happens after the attachment is grabbed, that map ops are runtime only org.jboss.as.controller.operations.global.MapOperations#MAP_CLEAR_DEFINITION



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