Package ca.uhn.hl7v2.util

Examples of ca.uhn.hl7v2.util.Hl7InputStreamMessageIterator

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    /**
     * {@inheritDoc}
     */
    public Message processMessage(Message theIn) throws ApplicationException, HL7Exception {

        String encodedMessage = new PipeParser().encode(theIn);
        System.out.println("Received message:\n" + encodedMessage + "\n\n");

        // Now we need to generate a message to return. This will generally be an ACK message.
        Segment msh = (Segment) theIn.get("MSH");
        Message retVal;
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        System.out.println("[ Executing HL7Sender : HOST:" + host + "  ;port :" + port + " ]");
        // The connection hub connects to listening servers
        ConnectionHub connectionHub = ConnectionHub.getInstance();
        // A connection object represents a socket attached to an HL7 server
        Connection connection = connectionHub
                .attach(host, port, new PipeParser(), MinLowerLayerProtocol.class);

        // The initiator is used to transmit unsolicited messages
        Initiator initiator = connection.getInitiator();
        HL7Message sampleMessage = new HL7Message();

        //send
        Message response = null;
        try {
            response = initiator.sendAndReceive(sampleMessage.getHL7Message());
            PipeParser parser = new PipeParser();
            String responseString = parser.encode(response);
            System.out.println("Received response:\n" + responseString);
        } catch (LLPException e) {
            System.out.println("Error : " + e);
        } catch (IOException e) {
            System.out.println("Error : " + e);
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    }

    @Override
    protected void startEndpoint(HL7Endpoint endpoint) throws AxisFault {
        LowerLayerProtocol llp = LowerLayerProtocol.makeLLP();
        PipeParser parser = new PipeParser();
        SimpleServer server = new SimpleServer(endpoint.getPort(), llp, parser);
        Application callback = new HL7MessageProcessor(endpoint);
        server.registerApplication("*", "*", callback);
        server.start();
        serverTable.put(endpoint, server);
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            MessageContext messageContext = endpoint.createMessageContext();
            messageContext.setIncomingTransportName(HL7Constants.TRANSPORT_NAME);
            messageContext.setEnvelope(createEnvelope(message));
            /* set the raw HL7 message in message context to be used if needed later */
            messageContext.setProperty(HL7Constants.HL7_RAW_MESSAGE_PROPERTY_NAME,
                new PipeParser().encode(message));
            AxisEngine.receive(messageContext);
            return createAck(message);

        } catch (AxisFault axisFault) {
            return createNAck(message, "Error while processing the HL7 message " +
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    private Connection getConnection(String targetEPR, ConnectionHub hub) throws AxisFault {
        try {
            URI url = new URI(targetEPR);
            String targetHost = url.getHost();
            int targetPort = url.getPort();
            return hub.attach(targetHost, targetPort, new PipeParser(),
                    MinLowerLayerProtocol.class);
        } catch (URISyntaxException e) {
            handleException("Malformed HL7 URI syntax: " + targetEPR, e);
        } catch (HL7Exception e) {
            handleException("Error while obtaining HL7 connection to: " + targetEPR, e);
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        // Helper class
    }

    @Converter
    public static String toString(Message message) throws HL7Exception {
        Parser parser = new PipeParser();
        String encoded = parser.encode(message);
        return encoded;
    }
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    @Converter
    public static Message toMessage(String body) throws HL7Exception {
        // replace \n with \r as HL7 uses 0x0d = \r as segment terminators and HAPI only parses with \r
        body = body.replace('\n', '\r');

        Parser parser = new PipeParser();
        Message message = parser.parse(body);
        return message;
    }
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        }

        // convert to string
        String body;
        if (message instanceof Message) {
            Parser parser = new PipeParser();
            body = parser.encode((Message)message);
        } else if (message instanceof String) {
            body = (String)message;
        } else if (message instanceof byte[]) {
            body = new String((byte[])message);
        } else {
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    // It's generally a good idea to buffer file IO
    is = new BufferedInputStream(is);
   
    // The following class is a HAPI utility that will iterate over
    // the messages which appear over an InputStream
    Hl7InputStreamMessageIterator iter = new Hl7InputStreamMessageIterator(is);
   
    while (iter.hasNext()) {
     
      Message next = iter.next();
     
      // Do something with the message
     
    }
   
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     * send out.
     */
    FileReader reader = new FileReader("message_file.txt");
   
    // Create an iterator to iterate over all the messages
    Hl7InputStreamMessageIterator iter = new Hl7InputStreamMessageIterator(reader);
   
    ConnectionHub connectionHub = ConnectionHub.getInstance();
    Connection conn = null;
   
    while (iter.hasNext()) {
     
      Message next = iter.next();
     
      /* If we don't already have a connection, create one.
       * Note that unless something goes wrong, it's very common
       * to keep reusing the same connection until we are done
       * sending messages. Many systems keep a connection open
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Related Classes of ca.uhn.hl7v2.util.Hl7InputStreamMessageIterator

  • ca.uhn.hl7v2.DefaultHapiContext
  • ca.uhn.hl7v2.examples.ReadMessagesFromFile
  • ca.uhn.hl7v2.model.Message
  • ca.uhn.hl7v2.model.v22.segment.ERR
  • ca.uhn.hl7v2.model.v22.segment.GT1
  • ca.uhn.hl7v2.model.v22.segment.MFI
  • ca.uhn.hl7v2.model.v22.segment.NPU
  • ca.uhn.hl7v2.model.v22.segment.NST
  • ca.uhn.hl7v2.model.v22.segment.OBX
  • ca.uhn.hl7v2.model.v22.segment.ODS
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