/// <param name="message">a parsed message to validate (note that MSH-9-1 and MSH-9-2 must be valued)
/// </param>
/// <returns> true if the message is OK
/// </returns>
/// <throws> HL7Exception if there is at least one error and this validator is set to fail on errors </throws>
public virtual bool validate(IMessage message)
{
Terser t = new Terser(message);
IMessageRule[] rules = myContext.getMessageRules(message.Version, t.Get("MSH-9-1"), t.Get("MSH-9-2"));
ValidationException toThrow = null;
bool result = true;
for (int i = 0; i < rules.Length; i++)
{
ValidationException[] ex = rules[i].test(message);
for (int j = 0; j < ex.Length; j++)
{
result = false;
ourLog.Error("Invalid message", ex[j]);
if (failOnError && toThrow == null)
{
toThrow = ex[j];
}
}
}
if (toThrow != null)
{
throw new HL7Exception("Invalid message", toThrow);
}
return result;
}
/// <summary>
/// Test
/// </summary>
/// <param name="msg"></param>
/// <returns></returns>
public override ValidationException[] test(NHapi.Base.Model.IMessage msg)
{
ValidationException[] result = new ValidationException[0];
foreach (MessageRegExRuleElement rule in regexRules)
{
bool flag1 = (rule.Version == "*") || (msg.Version == rule.Version);
string structureName = msg.GetStructureName();
string[] sNames = structureName.Split('_');
bool flag2 = (rule.MessageType == "*") || (sNames[0] == rule.MessageType);
bool flag3 = (rule.TriggerEvent == "*") || (sNames[1] == rule.TriggerEvent);
if (flag1 && flag2 && flag3)
{
Terser terser = new Terser(msg);
string value = terser.Get(rule.FieldIndicator);
if ((value == null) && !rule.AllowNull)
{
result = new ValidationException[1] { new ValidationException(string.Format("Value in '{0}' may not be null.", value)) };
}
else if ((value != null) && !Regex.IsMatch(value, rule.RegEx))
{
result = new ValidationException[1] { new ValidationException(string.Format("Value '{0}' in '{1}' doesn't match regex '{2}'.", value, rule.FieldIndicator, rule.RegEx)) };
}
}
if (result.Count() > 0)
break;
}
return result;
}
/// <summary>
/// Test
/// </summary>
/// <param name="msg"></param>
/// <returns></returns>
public override ValidationException[] test(NHapi.Base.Model.IMessage msg)
{
ValidationException[] result = new ValidationException[0];
foreach (MessageFieldMandatoryRuleElement rule in mandatoryRules)
{
bool flag1 = (rule.Version == "*") || (msg.Version == rule.Version);
string structureName = msg.GetStructureName();
string[] sNames = structureName.Split('_');
bool flag2 = (rule.MessageType == "*") || (sNames[0] == rule.MessageType);
bool flag3 = (rule.TriggerEvent == "*") || (sNames[1] == rule.TriggerEvent);
if (flag1 && flag2 && flag3)
{
Terser terser = new Terser(msg);
string value = terser.Get(rule.FieldIndicator);
if (string.IsNullOrEmpty(value))
{
result = new ValidationException[1] { new ValidationException(string.Format("Field '{1}' is mandatory.", value, rule.FieldIndicator)) };
}
}
if (result.Count() > 0)
break;
}
return result;
}
public override bool Send(IMessage msg)
{
EditMessageHeader(msg);
IMessage response = mllpClient.SendHL7Message(msg);
Terser terser = new Terser(response);
string ackCode = terser.Get("/MSA-1");
return (ackCode == "AA");
}
private bool CheckFieldFilter(IMessage message)
{
bool result = true;
if (string.IsNullOrWhiteSpace(FieldFilter) && string.IsNullOrWhiteSpace(FieldFilterValue))
return result;
Terser terser = new Terser(message);
string msgFieldValue = terser.Get(FieldFilter);
result = Compare(FieldFilterValue, msgFieldValue);
return result;
}
public bool Match(IMessage message)
{
bool result = false;
result = Compare(Hl7Version, message.Version);
if (result)
{
// Dib0 20150125: Changed the compare. This method doesn't work with messages
// that are parsed as generic messages
//result = Compare(Structurename, message.GetStructureName());
Terser terser = new Terser(message);
string messageType = string.Format("{0}_{1}", terser.Get("MSH-9-1"), terser.Get("MSH-9-2"));
result = Compare(Structurename, messageType);
}
// Check the field filter
if (result)
result = CheckFieldFilter(message);
return result;
}
public override bool Send(IMessage msg)
{
bool result = true;
EditMessageHeader(msg);
try
{
PipeParser parser = new PipeParser();
string res = SendRequest(parser.Encode(msg));
IMessage response = parser.Parse(res);
Terser terser = new Terser(response);
string ackCode = terser.Get("/MSA-1");
result = (ackCode == "AA");
}
catch (Exception ex)
{
Logger.ErrorFormat("Error in delivering message '{0}' to Http endpoint with uri '{1}'. Error: {2}", msg.GetStructureName(), serverUri, ex.Message);
result = false;
}
return result;
}
/// <summary>
/// Create an Ack message based on a received message
/// </summary>
/// <param name="inboundMessage">received message</param>
/// <param name="ackResult">Send AA, AE or AR message.</param>
/// <param name="errorMessage">The reason the message was rejected or an error. If "AA" was supplied as ackCode the errorMessage should be null.</param>
/// <returns>Created ACK message</returns>
public IMessage MakeACK(IMessage inboundMessage, AckTypes ackResult, string errorMessage)
{
IMessage ackMessage = null;
// Get an object from the right ACK class
string ackClassType = string.Format("NHapi.Model.V{0}.Message.ACK, NHapi.Model.V{0}", inboundMessage.Version.Replace(".", ""));
Type x = Type.GetType(ackClassType);
if (x != null)
ackMessage = (IMessage)Activator.CreateInstance(x);
else
{
// Fix for V2.2 and V2.1 Since tha ACK message class is missing there in NHapi
if (inboundMessage.Version == "2.1")
ackMessage = (IMessage)new NHapiTools.Base.CustomImplementation.V21.Messages.ACK();
if (inboundMessage.Version == "2.2")
ackMessage = (IMessage)new NHapiTools.Base.CustomImplementation.V22.Messages.ACK();
}
Terser inboundTerser = new Terser(inboundMessage);
ISegment inboundHeader = null;
inboundHeader = inboundTerser.getSegment("MSH");
// Find the HL7 version of the inbound message:
string version = null;
try
{
version = Terser.Get(inboundHeader, 12, 0, 1, 1);
}
catch (NHapi.Base.HL7Exception)
{
// I'm not happy to proceed if we can't identify the inbound
// message version.
throw new NHapi.Base.HL7Exception("Failed to get valid HL7 version from inbound MSH-12-1");
}
// Create a Terser instance for the outbound message (the ACK).
Terser terser = new Terser(ackMessage);
// Populate outbound MSH fields using data from inbound message
ISegment outHeader = (ISegment)terser.getSegment("MSH");
DeepCopy.copy(inboundHeader, outHeader);
// Now set the message type, HL7 version number, acknowledgement code
// and message control ID fields:
string sendingApp = terser.Get("/MSH-3");
string sendingEnv = terser.Get("/MSH-4");
terser.Set("/MSH-3", appCommunicationName);
terser.Set("/MSH-4", environmentIdentifier);
terser.Set("/MSH-5", sendingApp);
terser.Set("/MSH-6", sendingEnv);
terser.Set("/MSH-7", DateTime.Now.ToString("yyyyMMddmmhh"));
terser.Set("/MSH-9", "ACK");
terser.Set("/MSH-12", version);
terser.Set("/MSA-1", Enum.GetName(typeof(AckTypes), ackResult));
terser.Set("/MSA-2", Terser.Get(inboundHeader, 10, 0, 1, 1));
// Set error message
if (errorMessage != null)
terser.Set("/ERR-1-1", errorMessage);
return ackMessage;
}
public static IMessage MakeACK(ISegment inboundHeader, string ackCode)
{
if (!inboundHeader.GetStructureName().Equals("MSH"))
throw new NHapi.Base.HL7Exception(
"Need an MSH segment to create a response ACK (got " + inboundHeader.GetStructureName() + ")");
// Find the HL7 version of the inbound message:
//
string version = null;
try
{
version = Terser.Get(inboundHeader, 12, 0, 1, 1);
}
catch (NHapi.Base.HL7Exception)
{
// I'm not happy to proceed if we can't identify the inbound
// message version.
throw new NHapi.Base.HL7Exception("Failed to get valid HL7 version from inbound MSH-12-1");
}
IMessage ackMessage = new ACK();
// Create a Terser instance for the outbound message (the ACK).
Terser terser = new Terser(ackMessage);
// Populate outbound MSH fields using data from inbound message
ISegment outHeader = (ISegment)terser.getSegment("MSH");
DeepCopy.copy(inboundHeader, outHeader);
// Now set the message type, HL7 version number, acknowledgement code
// and message control ID fields:
string sendingApp = terser.Get("/MSH-3");
string sendingEnv = terser.Get("/MSH-4");
terser.Set("/MSH-3", CommunicationName);
terser.Set("/MSH-4", EnvironmentIdentifier);
terser.Set("/MSH-5", sendingApp);
terser.Set("/MSH-6", sendingEnv);
terser.Set("/MSH-7", DateTime.Now.ToString("yyyyMMddmmhh"));
terser.Set("/MSH-9", "ACK");
terser.Set("/MSH-12", version);
terser.Set("/MSA-1", ackCode == null ? "AA" : ackCode);
terser.Set("/MSA-2", Terser.Get(inboundHeader, 10, 0, 1, 1));
return ackMessage;
}