[HAPI-devel] Dynamically generating HL7 messages

[ray_lukas]

I am building an application which of course has a model. I want to construct as HL7 message from this model. I have a mapping table in my database, used to identify each field I am interested in using from my model, which maps to a HL7 entity. I am generating requests for tests to several (hundreds of) labs and each lab is going to be different. So I will go to my mapping table and load the mappings from my model into the unique HL7 layout for that lab.

I will create a HL7 MSH segment and then from that use the addNonstandardSegment method. Can this method also add standard normal segments and such. Am I thinking correctly, is there a better way..

Reading an HL7 message and mapping into my model is fairly easy, use Terser and one of the segment iterators and .. not too bad.. are there any tricks in HAPI that I should know about to Generate an HL7 message given what I have described..

using code like this is not going to work to well..

ORM_O01 orm = new ORM_O01();

MSH mshSegment = orm.getMSH();

mshSegment.getFieldSeparator().setValue("|");

mshSegment.getEncodingCharacters().setValue("^~\\&");

mshSegment.getVersionID().setValue("2.3");

mshSegment.getDateTimeOfMessage().getTimeOfAnEvent().setValue("200701011539");

mshSegment.getSendingApplication().getNamespaceID().setValue("TestSendingSystem");

mshSegment.getSequenceNumber().setValue("123");

mshSegment.getMessageType().getMessageType().setValue("ORM");

mshSegment.getMessageType().getTriggerEvent().setValue("O01");

// Populate the PID Segment

Date now = new Date();

ORM_O01_PATIENT patient = orm.getPATIENT();

patient.getPID().getPatientIDInternalID(0).getCx1_ID().setValue("PatId123");

etc

etc

etc

 

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