Re: [HAPI-devel] Obtaining XPath during "client" mode...

[Russell B. <ru...@wi...>]

Oops, sorry James, I though I had that list. I will correct that for 
next time. Many thanks!

On 4/6/20 12:38 PM, James Agnew wrote:
> Hi Russell,
>
> FYI this is the HAPI-HL7v2 mailing list, it's probably better to ask 
> this question on the HAPI FHIR list at : 
> https://groups.google.com/forum/#!forum/hapi-fhir
>
> That said, there isn't a built-in way of applying XPath, but you might 
> look at FhirContext#newFluentPath() (renamed to newFhrPath on HAPI 
> FHIR 5.0.0-SNAPSHOT). This allows you to apply FHIRPath expressions to 
> FHIR resources. These are not exactly like xpath, but are just as 
> expressive.
>
> Cheers,
> James
>
> On Mon, Apr 6, 2020 at 2:10 PM Russell Bateman <ru...@wi... 
> <mailto:ru...@wi...>> wrote:
>
>     I wonder if there's a way to get an XPath within the source
>     document for any, given piece of information I'm able to get out
>     of the API. (Note that there is a way to do this using MDHT for
>     HL7 v3 work; this is why I ask.) I need to annotate data I extract
>     with the location where I found it in the original source document.
>
>     For example, let's assume the following code:
>
>         FhirContext context = FhirContext.forDstu3();
>         IParser     parser  = context.newXmlParser();
>         Patient     patient = parser.parseResource( Patient.class,
>         getFhirRecord() );
>
>         List< HumanName > names = patient.getName();
>         for( HumanName name : names )
>         {
>           String family = name.getFamily();
>           List< StringType > givenNames = name.getGiven();
>
>           for( StringType given : givenNames )
>           {
>             String name  = given.toString();
>             String xpath = ?;                 // x marks the spot
>           }
>         }
>
>     Neither by inspecting data structures in the debugger nor by
>     examining the Javadoc for /org.hl7.fhir.dstu3.model.Patient/ am I
>     able to find way to get back something like
>
>         /Patient/contained[1]/Patient/name/given[1]/
>
>     for a given name at [x marks the spot above] .
>
>     How are others solving this? Does anyone else need to solve this?
>
>     Thanks
>
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