Re: [HAPI-devel] Using Z-segments in ADT_AXX superstructure

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 422-6466

Hi Ian,

I was able to recreate this, and it's a bug all right.

I'll put a fix in, but I was able to work around it in the current version
of HAPI by using a newly created parser that had validation disabled. The
following snippet (which is kind of weird but does demonstrate a
workaround..) works for me:

 ADT_AXX msg = new ADT_AXX();

 String message =
"MSH|^~\\&|NES|NINTENDO|AGNEW|CORNERCUBICLE|20010101000000||ADT^A01|Q123456789T123456789X123456|P|2.3\r\n"

  + "PID|2||123456789|0123456789^AA^^JP|BROS^MARIO^^^^||19850101000000|M|||123
FAKE STREET^MARIO \\T\\ LUIGI BROS PLACE^TOADSTOOL
KINGDOM^NES^A1B2C3^JP^HOME^^1234|1234|(555)555-0123^HOME^JP:1234567|||S|MSH|12345678|||||||0|||||N\r\n"
;

 msg.parse(message);

  msg.addNonstandardSegment("ZZZ");

 GenericSegment zzz = (GenericSegment) msg.get("ZZZ");

 zzz.parse("ZZZ|1|2");

 DefaultHapiContext ctx = new DefaultHapiContext();

 ctx.setValidationContext(new ValidationContextImpl());

  String out = ctx.getPipeParser().encode(msg);

 ourLog.info(out);

Cheers,

James

On Mon, Jul 21, 2014 at 7:37 PM, Ian Vowles <Ian...@he...>
wrote:

> 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
>
>
> ********************************************************************************
> This email, including any attachments sent with it, is confidential and
> for the sole use of the intended recipient(s). This confidentiality is not
> waived or lost, if you receive it and you are not the intended
> recipient(s), or if it is transmitted/received in error.
> Any unauthorised use, alteration, disclosure, distribution or review of
> this email is strictly prohibited.  The information contained in this
> email, including any attachment sent with it, may be subject to a statutory
> duty of confidentiality if it relates to health service matters.
> If you are not the intended recipient(s), or if you have received this
> email in error, you are asked to immediately notify the sender by telephone
> collect on Australia +61 1800 198 175 or by return email.  You should also
> delete this email, and any copies, from your computer system network and
> destroy any hard copies produced.
> If not an intended recipient of this email, you must not copy, distribute
> or take any action(s) that relies on it; any form of disclosure,
> modification, distribution and/or publication of this email is also
> prohibited.
> Although Queensland Health takes all reasonable steps to ensure this email
> does not contain malicious software, Queensland Health does not accept
> responsibility for the consequences if any person's computer inadvertently
> suffers any disruption to services, loss of information, harm or is
> infected with a virus, other malicious computer programme or code that may
> occur as a consequence of receiving this email.
> Unless stated otherwise, this email represents only the views of the
> sender and not the views of the Queensland Government.
>
> **********************************************************************************
>
>
>
> ------------------------------------------------------------------------------
> Want fast and easy access to all the code in your enterprise? Index and
> search up to 200,000 lines of code with a free copy of Black Duck
> Code Sight - the same software that powers the world's largest code
> search on Ohloh, the Black Duck Open Hub! Try it now.
> http://p.sf.net/sfu/bds
> _______________________________________________
> Hl7api-devel mailing list
> Hl7...@li...
> https://lists.sourceforge.net/lists/listinfo/hl7api-devel
>