Hey Christian,
Thanks for the help. I got the validation section licked - thanks for the input.
I'm not really looking to parse and get data from messages. What I'm attempting
at doing is a pure HL7v3 to HL7v2 and HL7v2 to HL7v3 transformation. At this
point in time I just need to see if it works as a PoC.
I looked at the CustomModelClasses example you listed, and it makes sense. How
would one implement something similar so it is automatically used during the
parsing of a Q21 / Q22 / R21 / R22? Or use some of the logic from James' post
above to get HAPI parsing the PID fields without unknown and with the proper
PID.1, PID.2 etc.
Cheers,
Ryan
From: Christian Ohr [mailto:[email protected]]
Sent: April-17-13 12:49 AM
To: Ternier, Ryan
Subject: Re: [HAPI-devel] Weird behavior running a parse on QBP_Q21 HL7v2.4
Well, the parser does about as best as it can - QPD-3 is a repeatable Varies
field by default (check the spec!). IHE has instead decided assign concrete
data types to QPD-3, QPD-4 and QPD-8 for the parameters of PDQ queries. Note
that you can still use the Terser to read data e.g. from QPD-3(0)-1, QPD-3(0)-2
etc.
You still may want to have a custom HL7 model for this message, see the example
http://hl7api.sourceforge.net/xref/ca/uhn/hl7v2/examples/CustomModelClasses.html
on how to do this with HAPI.
Luckily, for a number of HL7 models for IHE transactions this has been done
already, e.g. in the Open eHealth Integration Platform (IPF). The model
definitions are here:
https://github.com/oehf/ipf/tree/master/commons/ihe/hl7v2/src/main/java/org/openehealth/ipf/commons/ihe/hl7v2/definitions.
cheers
Christian
2013/4/16 Ternier, Ryan <[email protected]<mailto:[email protected]>>
I'm not sure what's going on with the parser. It's not parsing out the PID
information correctly. When I've ran the parser to convert from a format that
does look correct to HL7v2, it works, but it seems it hates this format which
is used by one of the largest health systems:
I have the following HL7v2 message:
MSH|^~\\&|SOME_SOURCE|SOME_ORGANIZATION|BCSYSTEM|BCSYSTEM|20130213094112||QBP^Q22^QBP_Q21|46320||2.4
QPD|Q22^IHE PDQ
Query|46320|@PID.3.1^[email protected][email protected][email protected]^[email protected]^[email protected]^[email protected]^F||Exact<mailto:Query|46320|@PID.3.1%[email protected][email protected][email protected]%[email protected]%[email protected]%[email protected]%5eF||Exact>
RCP|D|25^RD
Running the following code:
PipeParser p = new PipeParser();
Message m = p.parse(hl7Message); //pasted above
XMLParser xmlParser = new DefaultXMLParser();
String ackMessageInXML = xmlParser.encode(m);
System.out.println(ackMessageInXML);
====
I get the XML output which seems incorrect, why are the PID's not
<?xml version="1.0"?>
<QBP_Q21 xmlns="urn:hl7-org:v2xml">
<MSH>
<MSH.1>|</MSH.1>
<MSH.2>^~\&</MSH.2>
<MSH.3>
<HD.1>SOME_SOURCE</HD.1>
</MSH.3>
<MSH.4>
<HD.1>SOME_ORGANIZATION</HD.1>
</MSH.4>
<MSH.5>
<HD.1>BCSYSTEM</HD.1>
</MSH.5>
<MSH.6>
<HD.1>BCSYSTEM</HD.1>
</MSH.6>
<MSH.7>
<TS.1>20130213094112</TS.1>
</MSH.7>
<MSH.9>
<MSG.1>QBP</MSG.1>
<MSG.2>Q22</MSG.2>
<MSG.3>QBP_Q21</MSG.3>
</MSH.9>
<MSH.10>46320</MSH.10>
<MSH.12>
<VID.1>2.4</VID.1>
</MSH.12>
</MSH>
<QPD>
<QPD.1>
<CE.1>Q22</CE.1>
<CE.2>IHE PDQ Query</CE.2>
</QPD.1>
<QPD.2>46320</QPD.2>
<QPD.3>
<UNKNOWN.1>@PID.3.1</UNKNOWN.1>
<UNKNOWN.2>2162973</UNKNOWN.2>
</QPD.3>
<QPD.3>@PID.3.4</QPD.3>
<QPD.3>@PID.3.5</QPD.3>
<QPD.3>
<UNKNOWN.1>@PID.5.1</UNKNOWN.1>
<UNKNOWN.2>phsaempifive</UNKNOWN.2>
</QPD.3>
<QPD.3>
<UNKNOWN.1>@PID.5.2</UNKNOWN.1>
<UNKNOWN.2>Helium</UNKNOWN.2>
</QPD.3>
<QPD.3>
<UNKNOWN.1>@PID.7</UNKNOWN.1>
<UNKNOWN.2>19780930000000</UNKNOWN.2>
</QPD.3>
<QPD.3>
<UNKNOWN.1>@PID.8</UNKNOWN.1>
<UNKNOWN.2>F</UNKNOWN.2>
</QPD.3>
<QPD.5>Exact</QPD.5>
</QPD>
<RCP>
<RCP.1>D</RCP.1>
<RCP.2>
<CQ.1>25</CQ.1>
<CQ.2>
<CE.1>RD</CE.1>
</CQ.2>
</RCP.2>
</RCP>
</QBP_Q21>
Any thoughts?
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