Re: [HAPI-devel] does hapi check that a segment i spresent in a message in mandatory

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HAPI doesn't test for valid structure by default. The thorough way to
do it is to use conformance profiles (see
http://www.hl7.org/Special/committees/ictc/index.cfm), and a
ca.uhn.hl7v2.validation.impl.ConformanceProfileRule. If that's too
much trouble, you can write a simpler
ca.uhn.hl7v2.validation.MessageRule yourself.

The empty segments are created when the parser iterates through the
message structure to find the right place to put the segment data.

Bryan

On Fri, Nov 28, 2008 at 5:26 AM, Fabio Daprile
<fab...@sy...> wrote:
> Hello,
>
> i received this message from a remote system:
>
> MSH|^~\&|G2|Insiel|RIS|Syncromed|20070702090200+0000||ADT^A08^ADT_A01|G2070000003114850300|P|2.5||||||8859/1
> PID|||9056752||RUBINI^RENATO||19431020000000+0000|M|||VIA DELLE BORRE
> 26^^036017^^41052~VIA DELLE BORRE
> 26^^036017^^41052^^M||||||||||||036017|||100
>
> This message is obviously wrong, because the segment PV1, which is
> mandatory, is absent.
>
> I parse this message with the following java code:
>
>        String msg6 =
> "MSH|^~\\&|G2|Insiel|RIS|Syncromed|200707020902||ADT^A08|G2070000003114850300|P|2.5|\r"
>            + "PID|||9056752||RUBINI^RENATO^^^^^L||194310200000|M|||VIA
> DELLE BORRE 26^^036017^^41052^^L41052~VIA DELLE BORRE
> 26^^036017^^41052^^M|||||||RBNRNT43R20E264C|46394391||||036017|||100";
>
>        String[] messages = {msg6};
>        PipeParser hapiPipeParser = new PipeParser();
>        try {
>            hapiMsg = hapiPipeParser.parse(msg6);
>        } catch (EncodingNotSupportedException e) {
>            // TODO Auto-generated catch block
>            e.printStackTrace();
>        } catch (HL7Exception e) {
>            // TODO Auto-generated catch block
>            e.printStackTrace();
>        }
>
>        Document hapidoc = null;
>        DefaultXMLParser xmlparse = new DefaultXMLParser();
>        try {
>            hapidoc = xmlparse.encodeDocument(hapiMsg);
>        } catch (HL7Exception e) {
>            // TODO Auto-generated catch block
>            e.printStackTrace();
>        }
>
> And the result is the following:
>
> <ADT_A01>
> <MSH>
> <MSH.1>|</MSH.1>
> <MSH.2>^~\&amp;</MSH.2>
> <MSH.3>
> <HD.1>G2</HD.1>
> </MSH.3>
> <MSH.4>
> <HD.1>Insiel</HD.1>
> </MSH.4>
> <MSH.5>
> <HD.1>RIS</HD.1>
> </MSH.5>
> <MSH.6>
> <HD.1>Syncromed</HD.1>
> </MSH.6>
> <MSH.7>
> <TS.1>200707020902</TS.1>
> </MSH.7>
> <MSH.9>
> <MSG.1>ADT</MSG.1>
> <MSG.2>A08</MSG.2>
> </MSH.9>
> <MSH.10>G2070000003114850300</MSH.10>
> <MSH.11>
> <PT.1>P</PT.1>
> </MSH.11>
> <MSH.12>
> <VID.1>2.5</VID.1>
> </MSH.12>
> </MSH>
> <SFT/>
> <EVN/>
> <PID>
> <PID.3>
> <CX.1>9056752</CX.1>
> </PID.3>
> <PID.5>
> <XPN.1>
> <FN.1>RUBINI</FN.1>
> </XPN.1>
> <XPN.2>RENATO</XPN.2>
> <XPN.7>L</XPN.7>
> </PID.5>
> <PID.7>
> <TS.1>194310200000</TS.1>
> </PID.7>
> <PID.8>M</PID.8>
> <PID.11>
> <XAD.1>
> <SAD.1>VIA DELLE BORRE 26</SAD.1>
> </XAD.1>
> <XAD.3>036017</XAD.3>
> <XAD.5>41052</XAD.5>
> <XAD.7>L41052</XAD.7>
> </PID.11>
> <PID.11>
> <XAD.1>
> <SAD.1>VIA DELLE BORRE 26</SAD.1>
> </XAD.1>
> <XAD.3>036017</XAD.3>
> <XAD.5>41052</XAD.5>
> <XAD.7>M</XAD.7>
> </PID.11>
> <PID.18>
> <CX.1>RBNRNT43R20E264C</CX.1>
> </PID.18>
> <PID.19>46394391</PID.19>
> <PID.23>036017</PID.23>
> <PID.26>
> <CE.1>100</CE.1>
> </PID.26>
> </PID>
> </ADT_A01>
>
>
> It seems that Hapi creates empty segments, if not present in the
> incoming message, but only up to the last existing segment. Why it does
> not create empty segments for the following segments ?
> And why it does not throw any exception when a Mandatory segment is not
> present in the message?
>
> If this is a feature and not a bug, somebody  can explain to me how to
> implement this check? Is it possible to use the Validators
> (ValidationContextImpl) for this? Maybe somebody has already a class
> that does this kind of job.
>
> If this is a bug, is there a bug ticket opened? Or should i open one?
>
> greetings,
> Fabio Daprile
> --
>
> ------------------------------------------------------------------------
>
> Fabio Daprile
>
> via Galilei, 2 39100 Bolzano (BZ) - Italy Mobile +39 3491204973 tel.
> +39.0471065901 fax. +39.0471065919 e-mail fab...@sy...
>
>
>
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