The XML2HL7 component is used to parse XML document and convert it to HL7 (Health Level Seven) v2.x format. HL7 v2.x is a messaging standard used to define how information is packaged and communicated between different systems in hospital workflows.
An equivalent XML format (XML Schema) is defined for each HL7 v2.x message format. The component, upon receiving a XML message that confirms to any of the XML Schemas defined, will convert it into an appropriate HL7 v2.x message.
Figure 1: Component Configuration panel
Custom HL7 Message Packages
The Table contains a Map for version of HL7Message mapped to the list of provided Custom packages separted by delimeter ;
this option is seen only if Show Expert Properties is enabled.
Error Handling Configuration
If the component receives message of same format at all times, then XML schema of that message format can be provided here using schema editor which opens upon clicking the ellipsis button . The component will convert any valid XML message conforming to XML schemas defined for HL7 messages to respective HL7 v2.x message irrespective of the schema provided here. Defining a XML schema here will only set the schema on the input port of the component so that any required transformations can be defined using the schema.
Append MLLP characters to Response
Appends configured MLLP characters to the transformed HL7 message before sending it to output port, for example, ([StartBlock]Message[EndBlock][LastCharacter]).
This scenario explains the basic functionality of XML2HL7 component.
Create flow by connecting XML2HL7 to feeder and display components. Send sample input (valid XML message) to check the response(transformed HL7 format). Message in XML format is sent from the feeder and the corresponding message in HL7 v2.x format can be seen in display.
Figure 3: Sample Event Process
Figure 4: Sample Input (Expand to see) provided in Feeder
Figure 5: Output in Display window
Please refer to http://www.hl7.org/ for more information about HL7 messages.