Fw: [NTAC] RE: External adapter examples

[James E Cabral <jec@mtgmc.com>]

Good news.  Scott Renner provided an example of embedding a non-NIEM standard, in this case GML, into a NIEM message using an external adapter.  From this example, it seems easier than I thought.  We should be able to use the same approach to embed UBL payment information into a NIEM-conformant ECF 5 message.

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Jim Cabral
502 509-4532

From: sar@mitre.org
Sent: ‎Wednesday‎, ‎September‎ ‎10‎, ‎2014 ‎10‎:‎10‎ ‎AM
To: ntac@lists.gatech.edu

James,

 

The CoT-NIEM IEPD found in the MPD toolkit contains a few adapter types for GML components.  That allows us to use GML components for geolocation, like this:

 

  <mof:EventLocation>

    <mof:LocationCylinder>

      <mof:LocationPoint>

        <gml:Point gml:id="I1" srsName="http://metadata.ces.mil/mdr/ns/GSIP/crs/WGS84E_3D">

          <gml:pos>32.23426 -110.34511 90.2</gml:pos>

        </gml:Point>

      </mof:LocationPoint>

      <mof:LocationCylinderRadiusValue>44.2</mof:LocationCylinderRadiusValue>

      <mof:LocationCylinderHalfHeightValue>21.7</mof:LocationCylinderHalfHeightValue>

      <mof:LocationCreationCode>MACHINE.GPS</mof:LocationCreationCode>

    </mof:LocationCylinder>

  </mof:EventLocation>

 

As you can see, there’s nothing obvious in the IEP to mark the boundary of the adapted content.  The “adapterness” is off-stage in the schema, in which mof:LocationPointType is an adapter type, defined as

 

 <xs:complexType name="LocationPointType" appinfo:externalAdapterTypeIndicator="true">

    <xs:complexContent>

      <xs:extension base="structures:ObjectType">

        <xs:sequence>

          <xs:element ref="gml:Point" minOccurs="1" maxOccurs="1"/>

        </xs:sequence>

      </xs:extension>

    </xs:complexContent>

  </xs:complexType>

 

The OGC’s Geo4NIEM experiment found that embedding GML components in NIEM messages via adapter types preserves the GML semantics and works great with GML-aware COTS tools.

 

cheers,

-- scott

 

From: ntac-request@lists.gatech.edu [mailto:ntac-request@lists.gatech.edu] On Behalf Of James E Cabral
Sent: Tuesday, September 09, 2014 4:31 PM
To: ntac@lists.gatech.edu
Subject: [NTAC] External adapter examples

 

For the next version of the Electronic Court Filing (ECF) specification, version 5 which will be based on NIEM 3, the ECF technical committee is considering changing the way we handle payments.  In the current version (ECF 4),  we have 2 messages: a NIEM-conformant filing message and a non-NIEM payment message that imports most of its content from the Universal Business Language (UBL), another OASIS standard.  The WSDL in the ECF web service profile defines the two messages as separate parts of the SOAP message.  In ECF 5, we would like to better connect the filer in the filing message with the payer in the payment message.  Therefore, we are considering using NIEM external adapters to embed the UBL components in a single NIEM-conformant message that will provide both filing and payment information. 

 

I have reviewed the section of the NDR on external adapters and it all looks doable but a real world example would be very illustrative to the technical committee.  Does anyone have any examples of the use of external adapters with NIEM 3 that they could share?

 

  thanks,

 

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Jim Cabral
502 509-4532