/// <summary> Validates the given message against our accept validators, attempts to commit
/// the message to safe storage, and returns an ACK message indicating acceptance
/// or rejection at the accept level (see enhanced mode processing rules in HL7
/// chapter 2, v2.5).
/// </summary>
public static AcceptACK validate(NuGenProcessorContext theContext, NuGenTransportable theMessage)
{
AcceptACK ruling = null;
NuGenAcceptValidator[] validators = theContext.Validators;
for (int i = 0; i < validators.Length && ruling == null; i++)
{
Genetibase.NuGenHL7.protocol.AcceptRuling vr = validators[i].check(theMessage);
if (!vr.Acceptable)
{
System.String description = (vr.Reasons.Length > 0)?vr.Reasons[0]:null;
NuGenTransportable ack = makeAcceptAck(theMessage, vr.AckCode, vr.ErrorCode, description);
ruling = new AcceptACK(false, ack);
}
}
if (ruling == null)
{
try
{
theContext.SafeStorage.store(theMessage);
NuGenTransportable ack = makeAcceptAck(theMessage, Genetibase.NuGenHL7.protocol.Processor_Fields.CA, NuGenHL7Exception.MESSAGE_ACCEPTED, "");
ruling = new AcceptACK(true, ack);
}
catch (NuGenHL7Exception e)
{
int code = NuGenHL7Exception.APPLICATION_INTERNAL_ERROR;
NuGenTransportable ack = makeAcceptAck(theMessage, Genetibase.NuGenHL7.protocol.Processor_Fields.CR, code, e.Message);
ruling = new AcceptACK(false, ack);
}
}
return ruling;
}
/// <summary> Validates the given message against our accept validators, attempts to commit
/// the message to safe storage, and returns an ACK message indicating acceptance
/// or rejection at the accept level (see enhanced mode processing rules in HL7
/// chapter 2, v2.5).
/// </summary>
public static AcceptACK validate(NuGenProcessorContext theContext, NuGenTransportable theMessage)
{
AcceptACK ruling = null;
NuGenAcceptValidator[] validators = theContext.Validators;
for (int i = 0; i < validators.Length && ruling == null; i++)
{
Genetibase.NuGenHL7.protocol.AcceptRuling vr = validators[i].check(theMessage);
if (!vr.Acceptable)
{
System.String description = (vr.Reasons.Length > 0)?vr.Reasons[0]:null;
NuGenTransportable ack = makeAcceptAck(theMessage, vr.AckCode, vr.ErrorCode, description);
ruling = new AcceptACK(false, ack);
}
}
if (ruling == null)
{
try
{
theContext.SafeStorage.store(theMessage);
NuGenTransportable ack = makeAcceptAck(theMessage, Genetibase.NuGenHL7.protocol.Processor_Fields.CA, NuGenHL7Exception.MESSAGE_ACCEPTED, "");
ruling = new AcceptACK(true, ack);
}
catch (NuGenHL7Exception e)
{
int code = NuGenHL7Exception.APPLICATION_INTERNAL_ERROR;
NuGenTransportable ack = makeAcceptAck(theMessage, Genetibase.NuGenHL7.protocol.Processor_Fields.CR, code, e.Message);
ruling = new AcceptACK(false, ack);
}
}
return(ruling);
}
/// <param name="theContext">source of supporting services
/// </param>
/// <param name="isThreaded">true if this class should create threads in which to call cycle(), and
/// in which to send responses from Applications. This is the preferred mode. Use false
/// if threading is not allowed, eg you are running the code in an EJB container. In this case,
/// the send() and receive() methods will call cycle() themselves as needed. However, cycle()
/// makes potentially blocking calls, so these methods may not return until the next message
/// is received from the remote server, regardless of timeout. Probably the worst example of this
/// would be if receive() was called to wait for an application ACK that was specified as "RE" (ie
/// required on error). No response will be returned if the message is processed without error,
/// and in a non-threaded environment, receive() will block forever. Use true if you can, otherwise
/// study this class carefully.
///
/// TODO: write a MLLPTransport with non-blocking IO
/// TODO: reconnect transport layers on error and retry
/// </param>
public NuGenProcessorImpl(NuGenProcessorContext theContext, bool isThreaded)
{
myContext = theContext;
myThreaded = isThreaded;
myAcceptAcks = new System.Collections.Hashtable();
myReservations = new System.Collections.Hashtable();
myAvailableMessages = new System.Collections.Hashtable();
if (isThreaded)
{
ackCycler = new Cycler(this, true);
SupportClass.ThreadClass ackThd = new SupportClass.ThreadClass(new System.Threading.ThreadStart(ackCycler.Run));
ackThd.Start();
nonAckCycler = new Cycler(this, false);
SupportClass.ThreadClass nonAckThd = new SupportClass.ThreadClass(new System.Threading.ThreadStart(nonAckCycler.Run));
nonAckThd.Start();
}
}
/// <summary> Accepts a single inbound connection if the same ServerSocket is used for
/// all message exchanges, or a connection from each if two ServerSockets are
/// being used.
///
/// </summary>
/// <param name="theAddress">the IP address from which to accept connections (null means
/// accept from any address). Connection attempts from other addresses will
/// be ignored.
/// </param>
/// <returns> a <code>Processor</code> connected to the given address
/// </returns>
/// <throws> TransportException </throws>
public virtual NuGenProcessor accept(System.String theAddress)
{
NuGenTransportLayer transport = getTransport(myServerSocket, theAddress);
NuGenProcessorContext context = null;
if (myServerSocket2 == null)
{
//we're doing inbound & outbound on the same port
transport.connect();
context = new NuGenProcessorContextImpl(myRouter, transport, myStorage);
}
else
{
NuGenTransportLayer transport2 = getTransport(myServerSocket2, theAddress);
NuGenDualTransportConnector connector = new NuGenDualTransportConnector(transport, transport2);
connector.connect();
context = new NuGenProcessorContextImpl(myRouter, transport, transport2, myStorage);
}
return(new NuGenProcessorImpl(context, true));
}
