Re: [HAPI-devel] Error parsing ACK message

[Andrew R. <and...@ni...>]

I did some further testing, and parsing ACK messages generated by HAPI,
dcm4che, and 7Edit all works correctly. I haven't dug into standards enough
to determine if the HL7 Soup ACK is well formed within the standard, or
not, as yet.

On Wed, Jan 15, 2020, 9:01 PM Ian Vowles <Ian...@he...>
wrote:

> I think having the 3rd component in MSH-9 makes the parse create the
> message type specified there.
>
>
>
> Is it possible to omit the MDM_T01 in MSH-9?
>
>
>
>
>
> *Ian Vowles*
>
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> *From:* Andrew Ring via Hl7api-devel <hl7...@li...>
> *Sent:* Wednesday, 15 January 2020 3:28 PM
> *To:* hl7...@li...
> *Subject:* [HAPI-devel] Error parsing ACK message
>
>
>
> I'm new to hapi, and am trying to check the ACK response from having sent
> a message. The message is received properly, and the response appears well
> formed, however when I attempt to parse the ACK message, it's being
> interpreted as the type of the original message. (NB: The original message,
> as well as the response, are generated by HL7 Soup)
>
>
>
> final Message response = initiator.sendAndReceive(message);
>
>
>
> // Convert message into most recent version format, since they're backwards
>
> // compatible
>
> final HapiContext versionedContext = new DefaultHapiContext();
>
> final CanonicalModelClassFactory modelClassFactory = new
> CanonicalModelClassFactory("2.8.1");
>
> versionedContext.setModelClassFactory(modelClassFactory);
>
> final Message versionedResponse =
> versionedContext.getPipeParser().parse(response.toString());
>
> if (!(versionedResponse instanceof ACK)) {
>
>     final String errorMessage = String.format("Response invalid message
> type;\n  expected %s\n  found %s:\n%s",
>
>           ACK.class.getName(),
> versionedResponse.getClass().getName(), HL7Utils.forPrinting(versionedResponse));
>
>     recordSendAttempt(hl7DestinationInfo, false, errorMessage);
>
> }
>
>
>
> results in
>
>
>
> Error sending hl7 message with id '8': Response invalid message type;
>
>   expected ca.uhn.hl7v2.model.v281.message.ACK
>
>   found ca.uhn.hl7v2.model.v281.message.MDM_T01:
>
>
> MSH|^~\&|HL7Soup|Instance2|HL7Soup|Instance1|200911021022||ACK^T01^MDM_T01|64322|P|2.5.1
>
> MSA|AA|64322
>
>
>
> Can anyone point out what I'm doing wrong?
>
>
>
> Thanks,
>
> Andrew
>
>
>
>
>
>
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