readpoint and bizLocation

[djbur...@gmail.com]

Hi all,

I've found another peculiarity with Fosstrak, in that the order of the readpoint & bizlocation nodes in the xml file seems to matter - it shouldn't, as xml is not (necessarily) an ordered dataset. Unless this is something specified in the EPCIS standard?

The data file:

<?xml version="1.0" encoding="UTF-8"?>
<ns5:EPCISDocument xmlns:ns5="urn:epcglobal:epcis:xsd:1" schemaVersion="1.0" creationDate="2015-08-01T18:36:10+01:00">
  <EPCISBody>
    <EventList>
      <TransactionEvent>
        <eventTime>2014-07-13T22:21:30+01:00</eventTime>
        <eventTimeZoneOffset>+01:00</eventTimeZoneOffset>
        <bizTransactionList>
          <bizTransaction type="urn:gs1:epcisapp:rail:btt:passage">http://transaction.networkrail.co.uk/passage/00000000-000D-E060-0000-014731D16123</bizTransaction>
        </bizTransactionList>
        <epcList/>
        <action>ADD</action>
        <bizStep>urn:epcglobal:cbv:bizstep:transporting</bizStep>
        <disposition>urn:epcglobal:cbv:disp:in_transit</disposition>
        <bizLocation>
          <id>urn:epc:id:sgln:5053555.00000.0</id>
        </bizLocation>
        <readPoint>
          <id>urn:epc:id:sgln:5053555.00000.2</id>
        </readPoint>
        <rail:vehicle xmlns:rail="urn:gs1:epcisapp:rail">
[...]
        </rail:vehicle>
[...]
        <rail:vehicle xmlns:rail="urn:gs1:epcisapp:rail">
[...]
        </rail:vehicle>
        <rail:trainVehicleCount xmlns:rail="urn:gs1:epcisapp:rail">11</rail:trainVehicleCount>
        <rail:trainAxleCount xmlns:rail="urn:gs1:epcisapp:rail">44</rail:trainAxleCount>
      </TransactionEvent>
    </EventList>
  </EPCISBody>
</ns5:EPCISDocument>

returns an error 400, but swapping the readpoint/bizlocation nodes round is fine!

<?xml version="1.0" encoding="UTF-8"?>
<ns5:EPCISDocument xmlns:ns5="urn:epcglobal:epcis:xsd:1" schemaVersion="1.0" creationDate="2015-08-01T18:36:10+01:00">
  <EPCISBody>
    <EventList>
      <TransactionEvent>
        <eventTime>2014-07-13T22:21:30+01:00</eventTime>
        <eventTimeZoneOffset>+01:00</eventTimeZoneOffset>
        <bizTransactionList>
          <bizTransaction type="urn:gs1:epcisapp:rail:btt:passage">http://transaction.networkrail.co.uk/passage/00000000-000D-E060-0000-014731D16123</bizTransaction>
        </bizTransactionList>
        <epcList/>
        <action>ADD</action>
        <bizStep>urn:epcglobal:cbv:bizstep:transporting</bizStep>
        <disposition>urn:epcglobal:cbv:disp:in_transit</disposition>
        <readPoint>
          <id>urn:epc:id:sgln:5053555.00000.2</id>
        </readPoint>
        <bizLocation>
          <id>urn:epc:id:sgln:5053555.00000.0</id>
        </bizLocation>
        <rail:vehicle xmlns:rail="urn:gs1:epcisapp:rail">
[...]
        </rail:vehicle>
[...]
        <rail:vehicle xmlns:rail="urn:gs1:epcisapp:rail">
[...]
        </rail:vehicle>
        <rail:trainVehicleCount xmlns:rail="urn:gs1:epcisapp:rail">11</rail:trainVehicleCount>
        <rail:trainAxleCount xmlns:rail="urn:gs1:epcisapp:rail">44</rail:trainAxleCount>
      </TransactionEvent>
    </EventList>
  </EPCISBody>
</ns5:EPCISDocument>

Any ideas?

Thanks again...
Dave

[marcantoine...@orange.com]

Hi,

 

Actually, I think it comes from the EPCIS standard itself : the xsd files include <xsd:sequence> tags, which request for a specific order of XML tags.

 

Marc-Antoine

 

De : foss...@googlegroups.com [mailto:foss...@googlegroups.com] De la part de djbur...@gmail.com
Envoyé : lundi 10 août 2015 19:31
À : fosstrak
Objet : [fosstrak] readpoint and bizLocation

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Thank you.

[djbur...@gmail.com]

Thanks for the extremely rapid response (again!), Marc-Antoine!

You're absolutely correct - the standard has a sequence specified, so that the nodes should be in the order:

epcList
action
bizStep
disposition
readPoint
bizLocation
bizTransactionList
extension
##other

I'd just not spotted it before, only copying examples from others, which just happened to be in the right order...!

Regards,
Dave

[djbur...@gmail.com]

Actually, just noticed - the order I was using still isn't correct - biztransactionlist should come way down the list, not near the top, as it is in my working xml file!
D