In the current transformation I am working on I thought I would try using the
ADT_AXX superstructure, since multiple ADT types need to be handled.
Some complexity was present, given that the inbound has several Z-Segments,
which I have built definitions for, and the outbound has one of a different
structure to the inbounds.
Snippets from the code dealing with them are shown below. The hl7In mentioned
is of ADT_AXX type.
ADT_AXX hl7Out = new ADT_AXX();
hl7Out.setValidationContext(new NoValidation());
ZPX zpxIn = new ZPX(hl7In.getParent(), hl7In.getModelClassFactory());
ZVX zvxIn = new ZVX(hl7In.getParent(), hl7In.getModelClassFactory());
GenericSegment zSeg;
try {
zSeg = (GenericSegment) hl7In.getINSURANCE().get("ZPX");
zpxIn.parse(zSeg.encode());
} catch (HL7Exception ex) {
// Problem finding zpx leave it empty
}
try {
zSeg = (GenericSegment) hl7In.getINSURANCE().get("ZVX");
zvxIn.parse(zSeg.encode());
} catch (HL7Exception ex) {
// Problem finding zvx, leave it empty
}
hl7Out.addNonstandardSegment("ZPD");
GenericSegment zpdGen = (GenericSegment) hl7Out.get("ZPD");
ZpdEdis zpdOut = new ZpdEdis(hl7Out.getParent(),
hl7Out.getModelClassFactory());
SegmentTranslation.processZpd(zpxIn, hl7In.getPV1(), zvxIn, zpdOut);
zpdGen.parse(zpdOut.encode());
All of this works very nicely, and all was proceeding through test cases for
different message types with me reviewing the content of a .printstructure().
I got a nasty surprise when I finally came to .encode() the result:
java.lang.NullPointerException
at
java.util.Collections$UnmodifiableCollection.<init>(Collections.java:994)
at java.util.Collections$UnmodifiableSet.<init>(Collections.java:1066)
at java.util.Collections.unmodifiableSet(Collections.java:1056)
at
ca.uhn.hl7v2.model.AbstractSuperMessage.getStructuresWhichChildAppliesTo(AbstractSuperMessage.java:78)
at
ca.uhn.hl7v2.validation.builder.support.OnlyAllowableSegmentsInSuperstructureRule.checkStructure(OnlyAllowableSegmentsInSuperstructureRule.java:71)
at
ca.uhn.hl7v2.validation.builder.support.OnlyAllowableSegmentsInSuperstructureRule.apply(OnlyAllowableSegmentsInSuperstructureRule.java:55)
at
ca.uhn.hl7v2.validation.builder.support.OnlyAllowableSegmentsInSuperstructureRule.apply(OnlyAllowableSegmentsInSuperstructureRule.java:46)
at
ca.uhn.hl7v2.validation.AbstractValidator.testMessageRules(AbstractValidator.java:98)
at
ca.uhn.hl7v2.validation.AbstractValidator.validate(AbstractValidator.java:82)
at ca.uhn.hl7v2.parser.Parser.assertMessageValidates(Parser.java:611)
at ca.uhn.hl7v2.parser.Parser.encode(Parser.java:275)
at ca.uhn.hl7v2.parser.PipeParser.encode(PipeParser.java:1003)
at ca.uhn.hl7v2.model.AbstractMessage.encode(AbstractMessage.java:207)
at
au.gov.qld.health.sit.transform.hl7.HbcisNormAdtTxEdisTest.testTransformA01(HbcisNormAdtTxEdisTest.java:81)
Doing a .setValidationContext(new NoVAlidation) on the result message does not
prevent the error.
Is there anything I can do to enable this result to .encode()? The
prinstructure() shows everything exactly as I want it.
Thanks
Ian
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