How to use

Message

in

ca.uhn.hl7v2.model

parser.setValidationContext( validationContext );
Message msg = parser.parse( message );
Structure structure = msg.get( "MSH" );
String messageType = null;
String version = msg.getVersion();

/**
 * Generates an HL7v2 NAK response message on the basis
 * of the thrown exception and the original HAPI request message.
 *
 * @param exception       thrown exception.
 * @param originalMessage original HAPI request message.
 * @param ackTypeCode     HL7v2 acknowledgement type code.
 */
public Message createNak(Message originalMessage, HL7Exception exception, AcknowledgmentCode ackTypeCode) throws HL7Exception, IOException {
  return originalMessage.generateACK(ackTypeCode, exception);
}

parser.setValidationContext( validationContext );
Message msg = parser.parse( message );
Message ack = msg.generateACK();
String ackMessage = ack.encode();

  new HL7Value( message.getVersion(), rootGroup.getName(), group.getName(), structure.getName(),
    structureNumber, names[n - 1], coordinates, types[t].getName(), description, string );
values.add( value );

/**
 * @deprecated use {@link Message#generateACK()}
 */
public static Message makeACK(Segment inboundHeader) throws HL7Exception,
    IOException {
  // Make sure that the referenced message is not just a dummy
  DeepCopy.copy(inboundHeader, (Segment)inboundHeader.getMessage().get("MSH"));
  return inboundHeader.getMessage().generateACK();
}

private String handleProcessMessageException(String incomingMessageString, Map<String, Object> theMetadata, Message incomingMessageObject, Exception e) throws HL7Exception {
  String outgoingMessageString;
  Segment inHeader = incomingMessageObject != null ? (Segment) incomingMessageObject.get("MSH") : null;
  outgoingMessageString = logAndMakeErrorMessage(e, inHeader, myParser, myParser.getEncoding(incomingMessageString));
  if (outgoingMessageString != null && myExceptionHandler != null) {
    outgoingMessageString = myExceptionHandler.processException(incomingMessageString, theMetadata, outgoingMessageString, e);
  }
  return outgoingMessageString;
}

public Parser getParser() {
  return getDelegate().getParser();
}

/**
 * Always returns true, assuming that the router calling this handler will only call this
 * handler with ADT_A28 messages.
 *
 * @return true
 */
@Override
public boolean canProcess(Message message) {
  return message != null && "ADT_A28".equals(message.getName());
}

/**
 * Returns an instance using the MSH-1 and MSH-2 values of the given message
 *
 * @param message the message
 * @return the encoding characters for this message
 * @throws HL7Exception If either MSH-1 or MSH-2 are not populated
 * @since 1.0
 */
public static EncodingCharacters getInstance(Message message) throws HL7Exception {
  final String encodingCharactersValue = message.getEncodingCharactersValue();
  if (encodingCharactersValue == null || encodingCharactersValue.length() == 0) {
    throw new HL7Exception("encoding characters not populated");
  }
  final Character fieldSeparatorValue = message.getFieldSeparatorValue();
  if (fieldSeparatorValue == null) {
    throw new HL7Exception("Field separator not populated");
  }
  return new EncodingCharacters(fieldSeparatorValue, encodingCharactersValue);
}

private Message instantiateACK() throws HL7Exception {
  ModelClassFactory mcf = getParser() != null ? 
      getParser().getFactory() : 
      new DefaultModelClassFactory();
  Version version = Version.versionOf(getVersion());
  Message out = null;
  if (version != null && version.available()) {
    Class<? extends Message> clazz = mcf.getMessageClass("ACK", version.getVersion(), false);
    if (clazz != null) {
      out = ReflectionUtil.instantiateMessage(clazz, mcf);
    }
  }
  if (out == null) {
    out = new GenericMessage.UnknownVersion(mcf);
  }
  
  if (out instanceof GenericMessage) {
    if (!ArrayUtil.contains(out.getNames(), "MSA")) {
      out.addNonstandardSegment("MSA");
    }
    if (!ArrayUtil.contains(out.getNames(), "ERR")) {
      out.addNonstandardSegment("ERR");
    }
  }
  
  return out;
}

public String encode() throws HL7Exception {
  return originalMessage != null ? originalMessage : getDelegate().encode();
}

public Character getFieldSeparatorValue() throws HL7Exception {
  return getDelegate().getFieldSeparatorValue();
}

public String getEncodingCharactersValue() throws HL7Exception {
  return getDelegate().getEncodingCharactersValue();
}

private void validate(Message message) throws HL7Exception {
  message.getVersion();
}

/**
 * @deprecated use {@link Message#generateACK()}
 */
public static Message makeACK(Segment inboundHeader) throws HL7Exception,
    IOException {
  // Make sure that the referenced message is not just a dummy
  DeepCopy.copy(inboundHeader, (Segment)inboundHeader.getMessage().get("MSH"));
  return inboundHeader.getMessage().generateACK();
}

private String handleProcessMessageException(String incomingMessageString, Map<String, Object> theMetadata, Message incomingMessageObject, Exception e) throws HL7Exception {
  String outgoingMessageString;
  Segment inHeader = incomingMessageObject != null ? (Segment) incomingMessageObject.get("MSH") : null;
  outgoingMessageString = logAndMakeErrorMessage(e, inHeader, myParser, myParser.getEncoding(incomingMessageString));
  if (outgoingMessageString != null && myExceptionHandler != null) {
    outgoingMessageString = myExceptionHandler.processException(incomingMessageString, theMetadata, outgoingMessageString, e);
  }
  return outgoingMessageString;
}

public Parser getParser() {
  return getDelegate().getParser();
}

/**
 * Always returns true, assuming that the router calling this handler will only call this
 * handler with ORU_R01 messages.
 *
 * @return true
 */
@Override
public boolean canProcess(Message message) {
  return message != null && "ORU_R01".equals(message.getName());
}

/**
 * Returns an instance using the MSH-1 and MSH-2 values of the given message
 *
 * @param message the message
 * @return the encoding characters for this message
 * @throws HL7Exception If either MSH-1 or MSH-2 are not populated
 * @since 1.0
 */
public static EncodingCharacters getInstance(Message message) throws HL7Exception {
  final String encodingCharactersValue = message.getEncodingCharactersValue();
  if (encodingCharactersValue == null || encodingCharactersValue.length() == 0) {
    throw new HL7Exception("encoding characters not populated");
  }
  final Character fieldSeparatorValue = message.getFieldSeparatorValue();
  if (fieldSeparatorValue == null) {
    throw new HL7Exception("Field separator not populated");
  }
  return new EncodingCharacters(fieldSeparatorValue, encodingCharactersValue);
}

private Message instantiateACK() throws HL7Exception {
  ModelClassFactory mcf = getParser() != null ? 
      getParser().getFactory() : 
      new DefaultModelClassFactory();
  Version version = Version.versionOf(getVersion());
  Message out = null;
  if (version != null && version.available()) {
    Class<? extends Message> clazz = mcf.getMessageClass("ACK", version.getVersion(), false);
    if (clazz != null) {
      out = ReflectionUtil.instantiateMessage(clazz, mcf);
    }
  }
  if (out == null) {
    out = new GenericMessage.UnknownVersion(mcf);
  }
  
  if (out instanceof GenericMessage) {
    if (!ArrayUtil.contains(out.getNames(), "MSA")) {
      out.addNonstandardSegment("MSA");
    }
    if (!ArrayUtil.contains(out.getNames(), "ERR")) {
      out.addNonstandardSegment("ERR");
    }
  }
  
  return out;
}