I am trying to encode an HL7 message of the type ORU_R01 using the HAPI 2.0 library for an OpenMRS module. I have followed the tutorials given in the HAPI documentation and according to that, I have populated the required fields of the ORU_R01 message. Now, I want to post this message using the following link:
http://localhost:8080/openmrs/remotecommunication/postHl7.form I am using the following message for testing:
MSH|^~\&|||||20140713154042||ORU^R01|20140713154042|P|2.5|1 PID|||1 OBR|1||1234^SensorReading|88304 OBX|0|NM|1||45 OBX|1|NM|2||34 OBX|2|NM|3||23 I have properly ensured that all the parameters are correct. Once I have posted the HL7 message, I start the HL7 task from the scheduler. Then I go to the admin page and click on "Manage HL7 errors" in order to see if the message arrives there. I get the following stack trace:
ca.uhn.hl7v2.HL7Exception: HL7 encoding not supported ... Caused by: ca.uhn.hl7v2.parser.EncodingNotSupportedException: Can't parse message beginning MSH|^~\ at ca.uhn.hl7v2.parser.Parser.parse(Parser.java:140) The full stack trace is here: http://pastebin.com/ZnbFqfWC. I have written the following code to encode the HL7 message (using the HAPI library):
public String createHL7Message(int p_id, int concept_id[], String val[]) throws HL7Exception { ORU_R01 message = new ORU_R01(); SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss", Locale.ENGLISH); MSH msh = message.getMSH(); msh.getFieldSeparator().setValue("|"); msh.getEncodingCharacters().setValue("^~\\&"); msh.getProcessingID().getProcessingID().setValue("P"); msh.getSequenceNumber().setValue("1"); msh.getMessageType().getTriggerEvent().setValue("R01"); msh.getMessageType().getMessageCode().setValue("ORU"); msh.getVersionID().getVersionID().setValue("2.5"); msh.getMessageControlID().setValue( sdf.format(Calendar.getInstance().getTime())); msh.getDateTimeOfMessage().getTime() .setValue(sdf.format(Calendar.getInstance().getTime())); ORU_R01_ORDER_OBSERVATION orderObservation = message .getPATIENT_RESULT().getORDER_OBSERVATION(); ca.uhn.hl7v2.model.v25.segment.PID pid = message.getPATIENT_RESULT() .getPATIENT().getPID(); Patient patient = (Patient) Context.getPatientService() .getPatient(p_id); System.out.println(String.valueOf(p_id) + " " + patient.getGivenName() + " " + patient.getFamilyName()); pid.getPatientName(0).getFamilyName().getSurname() .setValue(patient.getFamilyName()); pid.getPatientName(0).getGivenName().setValue(patient.getGivenName()); pid.getPatientIdentifierList(0).getIDNumber() .setValue(String.valueOf(p_id)); System.out.println(); // Parser parser = new PipeParser(); // String encodedMessage = null; // encodedMessage = parser.encode(message); // System.out.println(encodedMessage); // Populate the OBR OBR obr = orderObservation.getOBR(); obr.getSetIDOBR().setValue("1"); obr.getFillerOrderNumber().getEntityIdentifier().setValue("1234"); obr.getFillerOrderNumber().getNamespaceID().setValue("SensorReading"); obr.getUniversalServiceIdentifier().getIdentifier().setValue("88304"); Varies value = null; // Varies value[] = new Varies[4]; for (int i = 0; i < concept_id.length; i++) { ORU_R01_OBSERVATION observation = orderObservation .getOBSERVATION(i); OBX obx2 = observation.getOBX(); obx2.getSetIDOBX().setValue(String.valueOf(i)); obx2.getObservationIdentifier().getIdentifier() .setValue(String.valueOf(concept_id[i])); obx2.getValueType().setValue("NM"); NM nm = new NM(message); nm.setValue(val[i]); value = obx2.getObservationValue(0); value.setData(nm); } Parser parser = new PipeParser(); String encodedMessage = null; encodedMessage = parser.encode(message); return encodedMessage; } In all likelihood, something is wrong with the MSH segment of the message, but I cannot seem to figure out what it is. What can I do to correct this error?
