FHIR Chat · HAPI Validator Transformation

Stream: implementers

Topic: HAPI Validator Transformation

Lallu Anthoor (Sep 13 2019 at 08:58):

I'm trying to use the HAPI FHIR Validator to transform one Resource to another. I am using one of the provided StructureMap (ActivityDefinition to ServiceRequest) with the default tx server (http://tx.fhir.org), and an ActivityDefinition from HAPI server. I'm getting the following error:

$ java -jar org.hl7.fhir.validator.jar -debug -transform http://hl7.org/fhir/StructureMap/supplyrequest-transform -output OperationOutcome.xml -version 4.0.0 -log txlog.out input.json
FHIR Validation tool Version 4.0.5-SNAPSHOT - Built 2019-09-03T13:06:20.836+10:00 - Git bd382306624d
Arguments: -debug -transform http://hl7.org/fhir/StructureMap/supplyrequest-transform -output OO.xml -version 4.0.0 -log txlog.out ./input.json
  .. connect to tx server @ http://tx.fhir.org
  .. definitions from hl7.fhir.core#4.0.0
    (v4.0.0)
Start Transform http://hl7.org/fhir/StructureMap/supplyrequest-transform
Group : main; vars = source variables [source: (ActivityDefinition)], target variables [], shared variables []
  rule : status; vars = source variables [source: (ActivityDefinition)], target variables [], shared variables []
 ...Failure: Rule "status": target context not known: target
org.hl7.fhir.exceptions.FHIRException: Rule "status": target context not known: target
    at org.hl7.fhir.r5.utils.StructureMapUtilities.processTarget(StructureMapUtilities.java:1813)
    at org.hl7.fhir.r5.utils.StructureMapUtilities.executeRule(StructureMapUtilities.java:1406)
    at org.hl7.fhir.r5.utils.StructureMapUtilities.executeGroup(StructureMapUtilities.java:1393)
    at org.hl7.fhir.r5.utils.StructureMapUtilities.transform(StructureMapUtilities.java:1367)
    at org.hl7.fhir.r5.validation.ValidationEngine.transform(ValidationEngine.java:1036)
    at org.hl7.fhir.r5.validation.ValidationEngine.transform(ValidationEngine.java:1022)
    at org.hl7.fhir.r5.validation.Validator.main(Validator.java:459)

It would be of great help if anyone could help me figure this out.

Use-case: I'm trying to implement mapping/transformation between two FHIR profiles. The idea is to use StructureMap and HAPI Validator to achieve this.

Thanks!