Sorry, it occurs to me that I mentioned the new support for not sending an
acknowledgement but didn't actually mention how to do it.
If you want to try this out, have a look at
HapiContext#getServerConfiguration()
Cheers,
James
On Wed, Mar 5, 2014 at 10:06 AM, James Agnew <ja...@jamesagnew.ca> wrote:
> Hi Tom,
>
> Your first question is well timed. The new 2.2 release just introduced the
> ability for you to configure servers to not send any ACK/NAK message in
> response when an application exception is detected in the processing code.
> This wasn't designed with your exact use case in mind, but I believe it
> should meet your needs.
>
> Unfortunately enhanced mode support is not great in HAPI. I think there is
> some support that was contributed at one point in the deprocated
> .protocol.* packages but I haven't ever used it. Possibly someone else on
> the list could speak to that.. Really what would be idea would be for
> someone to have a go at adding support into the main server implementation.
> I imagine it wouldn't be too hard, but it wouldn't be trivial either. Help
> welcome! :)
>
> Cheers,
> James
>
>
>
>
> On Tue, Mar 4, 2014 at 5:49 PM, Tom Wilson <twil...@sujansky.com> wrote:
>
>>
>>
>> Hi. I am trying to implement enhanced ACK mode with HAPI and encountered
>> the same problem described here:
>>
>>
>>
>>
>> https://www.mail-archive.com/hl7api-devel%40lists.sourceforge.net/msg01398.html
>>
>>
>>
>> I am testing a system which receives ORU messages, does some processing,
>> and sends an asynchronous ACK (enhanced mode) back to the sending system.
>>
>>
>>
>> Two things I want to accomplish:
>>
>>
>>
>> 1) Implement a HAPI server which will receive ORU messages, and
>> optionally return an accept ACK. It appears that it is not possible to omit
>> the accept ACK. How do I implement the processMessage method to not send an
>> accept ACK? If I simply return null, HAPI throws an exception and returns
>> its own NACK:
>> MSH|^~\&|||||20140304142506.948-0800||ACK^R01^ACK|502|D|2.5.1
>> MSA|AE|2013101516464300008
>> ERR|||207^Application internal error^HL70357^^^^^^Message may not be
>> null|E
>>
>> 2) For testing purposes I have several "dummy" HAPI servers which:
>>
>> a. Send HL7 ORU messages and receive ACKs asynchronously
>>
>> b. Receive HL7 ORU messages and send ACKs synchronously
>>
>> c. Print everything to stdout
>>
>>
>>
>> I don't care so much about data integrity (this is checked manually
>> during testing). In fact, it would be easier if I had one HAPI server that
>> receives ACKs and prints them to stdout without caring if the message
>> control ID matches a previously sent message.
>>
>>
>>
>> So is enhanced ACK mode supported? And how would that work?
>>
>>
>> Thanks in advance,
>>
>>
>>
>> -tom
>>
>
>
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