Mirth Add Segment HL7 V3 - mirth

Question

I am new to Mirth/JavaScript. I have a project where I need to add a segment to an incoming HL7 v3 XML file. I have tried the following JavaScript in the destination transformer;
tmp = msg.copy();
tmp.createSegment('templateId', ClinicalDocument, 1);
tmp.ClinicalDocument['templateId'][1]['#root'] ="2.16.840.1.113883.10.20.22.1.1";
This generates an error.
Also I need to place this new segment before the existing templateID segment.
Currently this is what we receive –
<ClinicalDocument xmlns="urn:hl7-org:v3" xmlns:mif="urn:hl7-org:v3/mif" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:sdtc="urn:hl7-org:sdtc">
<realmCode code="US" />
<typeId root="2.16.840.1.113883.1.3" extension="POCD_HD000040" /><br/>
<templateId root="2.16.840.1.113883.10.20.22.1.2" extension="2015-08-01" />
We want to add
Tranformed Output Desired -
Any help on how to accomplish this will be greatly appreciated.
Thank You

Answer 1

I understand your requirement in this way. That you need to add
<templateId root="2.16.840.1.113883.10.20.22.1.1" extension="2015-08-01" />
Exactly before the templateID
<templateId root="2.16.840.1.113883.10.20.22.1.2" extension="2015-08-01" />
If that's the requirement, this JAVA code will work
public static void main(String[] args) throws SAXException, IOException, ParserConfigurationException, TransformerException {
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
// Source XML
File fXmlFile = new File("C:\\Labs\\POC\\Import_Export\\TEST.xml");
Document doc = dBuilder.parse(fXmlFile);
// Get the element after which template ID code has to be added
Node nodeName = doc.getElementsByTagName("typeId").item(0);
// Code to add new Template ID
Element newTemplateID = doc.createElement("templateId");
newTemplateID.setAttribute("root", "2.16.840.1.113883.10.20.22.1.1");
newTemplateID.setAttribute("extension", "2015-08-01");
// Inserting exactly on specific area
nodeName.getParentNode().insertBefore(newTemplateID, nodeName.getNextSibling());
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
DOMSource source = new DOMSource(doc);
// destination XML
StreamResult result = new StreamResult(new File("C:\\Labs\\POC\\Import_Export\\TESTNew.xml"));
transformer.transform(source, result);
}
you will get an XML like this
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<ClinicalDocument xmlns="urn:hl7-org:v3" xmlns:mif="urn:hl7-org:v3/mif" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:sdtc="urn:hl7-org:sdtc">
<realmCode code="US"/>
<typeId extension="POCD_HD000040" root="2.16.840.1.113883.1.3"/>
<templateId extension="2015-08-01" root="2.16.840.1.113883.10.20.22.1.1"/>
<templateId extension="2015-08-01" root="2.16.840.1.113883.10.20.22.1.2"/>
</ClinicalDocument>
Refactor the above code for Mirth specification u will get same output, else u simply want to add extra tags on the end of xml you can use this code in Mirth script
var addTemplateId = new XML("<templateId></templateId>");
addTemplateId['#root'] = '2.16.840.1.113883.10.20.22.1.1';
addTemplateId['#extension'] = '2015-08-01';
var newValue = msg.appendChild(addTemplateId);
msg = newValue;
This will add new tags at the end of the existing tags of the message. which means your output will be like this
<ClinicalDocument xmlns="urn:hl7-org:v3" xmlns:mif="urn:hl7-org:v3/mif" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:sdtc="urn:hl7-org:sdtc">
<realmCode code="US"/>
<typeId extension="POCD_HD000040" root="2.16.840.1.113883.1.3"/>
<templateId extension="2015-08-01" root="2.16.840.1.113883.10.20.22.1.2"/>
<templateId extension="2015-08-01" root="2.16.840.1.113883.10.20.22.1.1"/>
</ClinicalDocument>