Well, I worked on some fine details regarding the Message object that is
being passed into the Terser object, and now I am not getting 'null' for
everything I try to extract from the PID segment, so 2/ I've answered
myself.
But number one still looks like it may pose a problem for my purposes...
+++++++++++++++++++++++++++++++++++++++++
NovaMan wrote:
>
> I've got a few questions about HAPI for you...
>
> 1/ I've got HL7 v2.3.1 ORU_R01 messages that are constructed thusly:
>
> MSH | …
> PID | 1 | …
> NTE | 1 | …
> NTE | 2 | …
> PV1 | 1 | …
> OBR | 1 | …
> OBX | 1 | …
> OBX | 2 | …
> OBX | 3 | …
> .
> .
> .
> OBX | 32 | ...
> OBR | 2 | …
> OBX | 33 | …
> .
> .
> .
> OBX | n | …
> OBX | 1 | …
> OBX | 2 | …
> .
> .
> .
> OBX | n |
> ZU1 |
> ZU2 |
>
> So there are multiple groups of multiple, contiguous OBX segments with OBR
> segments interspersed between these groups, with 'Z' segments at the end.
>
> Is there any way to (easily?) process these OBX segments/groups?
>
> 2/ I've been trying out HAPI on a sample HL7 file and I'm having trouble
> getting the patient ID (or anything else) from the PID segment. It works
> fine for the MSH segment, but as soon as I try the same type of extraction
> technique on the PID segment, I'm getting 'null' values. The code looks
> like:
>
> // Retrieve some data from the MSH segment.
> Terser t = new Terser(hapiMsg);
> String msgType, msgTrigger, sendingApp, sendingFacility, patientId;
> try {
> msgType = t.get("/MSH-9-1");
> msgTrigger = t.get("/MSH-9-2");
> sendingApp = t.get("/MSH-3-1");
> sendingFacility = t.get("/MSH-4-1");
> patientId = t.get("/.PID-3-1");
> } catch(HL7Exception HL7e) {
> logger.error("ProcessHL7Files::process_msg() : HL7Exception thrown in
> process_msg()!");
> HL7e.printStackTrace();
> return -1;
> }
>
> logger.info("ProcessHL7Files::process_msg() : 'msgType' = " + msgType);
> logger.info("ProcessHL7Files::process_msg() : 'msgTrigger' = " +
> msgTrigger);
> logger.info("ProcessHL7Files::process_msg() : 'sendingApp' = " +
> sendingApp);
> logger.info("ProcessHL7Files::process_msg() : 'sendingFacility' = " +
> sendingFacility);
> logger.info("ProcessHL7Files::process_msg() : 'patientId' = " +
> patientId);
>
> I believe that the '.' character is supposed to be where I have it in the
> line patientId = t.get("/.PID-3-1");
>
> Any help would be very highly appreciated.
>
>
--
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