// Finish making the getmessageID function
public String getMessageId(String message, int fieldNum)
{
Message t = new Message(message);
String tempString = t.getElement("MSH", fieldNum);
return tempString;
}
// This method is used to send a message to the server
public bool Send(string cmdstring, Queue queue)
{
cmdstring = HL7.CreateMLLPMessage(cmdstring);
exceptionthrown = false;
//var parameters = os_util.ParseParams(cmdstring);
Message m = new Message(cmdstring);
if (m.getElement("MSH", 8).ToUpper().ToString() == "ACK")
return true;
if (cmdstring.Length > 0)
{
try
{
// We need a connection to the server to send a message
if (connectionsocket.Connected)
{
byte[] byData = System.Text.Encoding.ASCII.GetBytes(cmdstring);
try
{
connectionsocket.Send(byData);
queue.Sent = true;
_repository.SaveChangesQueue(queue);
}
catch (Exception ex)
{
ErrorHandler._ErrorHandler.LogError(ex, "Error sending", this);
connected = connectionsocket.Connected ? true : false ;
Connect(Settings._instance.RemoteIPAddress, Convert.ToInt32(Settings._instance.RemotePort));
}
try
{
//ProcessSyncRecieve();
var item1 = socketpool.Pop();
item1.UserToken = new OSUserToken(this.connectionsocket,
Convert.ToInt32(Settings._instance.BufferSize), this._repository);
bool IOPending = connectionsocket.ReceiveAsync(item1);
// comment this for faster reads
if (!IOPending)
{
ProcessReceive(item);
}
}
catch (Exception ex)
{
ErrorHandler._ErrorHandler.LogError(ex, "Did not recieve a message after 3 seconds");
}
return true;
}
else
{
connected = false;
Connect(Settings._instance.RemoteIPAddress, Convert.ToInt32(Settings._instance.RemotePort));
return false;
}
}
catch (Exception ex)
{
ErrorHandler._ErrorHandler.LogError(ex, "Error sending", this);
lasterror = ex.ToString();
return false;
}
}
else
{
lasterror = "No message provided for Send.";
ErrorHandler._ErrorHandler.LogInfo(lasterror);
return false;
}
}
public void SendMessages()
{
foreach (var message in Directory.GetFiles(Settings._instance.OutFolderPath,"*.txt"))
{
Queue queue = new Queue();
try
{
using (FileStream f = new FileStream(message, FileMode.Open, FileAccess.ReadWrite))
{
using (StreamReader newMsg = new StreamReader(f))
{
String msg = "";
msg = newMsg.ReadToEnd();
Message msgMessage = new Message(msg);
if (msgMessage.getElement("MSH", 8) == "ACK")
{
queue.Sent = true;
queue.Garbage = true;
// _repository.SaveChangesQueue(queue);
}
else
{
// _repository.CreateMhistory(msg);
// queue = _repository.CreateQueueRecord(msg);
if (Send(msg, queue))
{
//queue = _repository.GetQueue(queue.ID);
//queue.Sent = true;
//_repository.SaveChangesQueue(queue);
}
}
}
}
if (File.Exists(message))
{
if (queue.Sent == true)
File.Delete(message);
}
}
catch (Exception ex)
{
ErrorHandler._ErrorHandler.LogError( ex, "- Problem sending message - "+ message);
}
}
}
public void ProcessClientData(String ackMessage)
{
// build the end of message string below to check recieved against it
string content2 = new String((char) HL7.MLLP_FIRST_END_CHARACTER, 1);
content2 = content2 + new String((char) HL7.MLLP_LAST_END_CHARACTER, 1);
// get the message up to the eof characters
// and remove the message from the string builder
if (ackMessage.IndexOf(content2) > -1)
{
if (ackMessage.IndexOf(content2) == 0)
{
ErrorHandler._ErrorHandler.LogInfo(
"Should not be here means message recieved did not have start and end MLLP characters ");
}
else
{
int temp2 = ackMessage.IndexOf(content2);
ackMessage = ackMessage.Substring(1, temp2);
_repository.CreateMhistory(ackMessage);
Message m = new Message(ackMessage);
String messageID = m.getElement("MSH", 9);
_repository.CreateAckRecord(ackMessage);
_repository.ProcessQueue(messageID);
}
}
}
// Do something with the received data, then reset the token for use by another connection.
// This is called when all of the data has been received for a read socket.
public void ProcessData(SocketAsyncEventArgs args)
{
// Get the last message received from the client, which has been stored in the stringbuilder.
String received = stringbuilder.ToString();
//TODO Use message received to perform a specific operation.
string content2 = new String((char)HL7.MLLP_FIRST_END_CHARACTER, 1);
content2 = content2 + new String((char)HL7.MLLP_LAST_END_CHARACTER, 1);
// Settings settings = new Settings();
// get the message up to the eof characters
// and remove the message from the string builder
if (received.IndexOf(content2) > -1)
{
if (received.IndexOf(content2) == 0)
{
totalbytecount = 0;
stringbuilder.Length = 0;
// Console.WriteLine("HERE CLEARING THINGS OUT");
}
else
{
//int temp = received.IndexOf(content2);
int temp2 = received.IndexOf(content2);
totalbytecount = totalbytecount - received.Length;
received = received.Substring(1, temp2);
stringbuilder.Remove(0, temp2);
totalbytecount = 0;
stringbuilder.Length = 0;
// Console.WriteLine("Received: \"{0}\". The server has read {1} bytes. {2} buffer {3}", received,received.Length, temp2, stringbuilder.Capacity);
_repository.CreateMhistory(received);
Message m = new Message(received);
//TODO: Load up a send buffer to send an ack back to the calling client
//TODO: Change the ack type based on errors or not.
AckMessages ack = new AckMessages(received, _repository);
if (!string.IsNullOrWhiteSpace(Settings._instance.OutFolderPath))
{
if (!string.IsNullOrEmpty(ack.getMessageId()))
{
String path = Path.Combine(Settings._instance.OutFolderPath, ack.getMessageId());
if (File.Exists(path))
{
bool b = true;
int i = 0;
do
{
i++;
path = Path.Combine(Settings._instance.OutFolderPath,
string.Format(ack.getMessageId() + "-{0}{1}", i, ".txt"));
if (!File.Exists(path))
{
b = false;
}
} while (b);
}
using (
var fs = new FileStream(path, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None,
4096,
FileOptions.None))
{
fs.Write(Encoding.ASCII.GetBytes(received), 0, Encoding.ASCII.GetByteCount(received));
}
Byte[] sendBuffer = Encoding.ASCII.GetBytes(ack.ack);
args.SetBuffer(sendBuffer, 0, sendBuffer.Length);
OwnerSocket.Send(args.Buffer);
_repository.CreateMhistory(ack.ack);
}
}
else
{
_repository.CreateQueueRecord(received);
ErrorHandler._ErrorHandler.LogInfo("There is an error creating the file: "+ received);
}
}
}
}
public void ProcessClientData(SocketAsyncEventArgs args)
{
// Get the last message received from the client, which has been stored in the stringbuilder.
String received = stringbuilder.ToString();
//TODO Use message received to perform a specific operation.
// build the end of message string below to check recieved against it
string content2 = new String((char)HL7.MLLP_FIRST_END_CHARACTER, 1);
content2 = content2 + new String((char)HL7.MLLP_LAST_END_CHARACTER, 1);
// get the message up to the eof characters
// and remove the message from the string builder
if (received.IndexOf(content2) > -1)
{
if (received.IndexOf(content2) == 0)
{
totalbytecount = 0;
stringbuilder.Length = 0;
//Console.WriteLine("HERE CLEARING THINGS OUT");
// ErrorHandler._ErrorHandler.LogInfo("Cleaning out buffer client data ");
}
else
{
//int temp = received.IndexOf(content2);
int temp2 = received.IndexOf(content2);
totalbytecount = totalbytecount - received.Length;
received = received.Substring(1, temp2);
// _repository.CreateMhistory(received);
stringbuilder.Remove(0, temp2);
totalbytecount = 0;
stringbuilder.Length = 0;
// Console.WriteLine("Received: \"{0}\". The server has read {1} bytes. {2}", received, received.Length, temp2);
Message m = new Message(received);
String messageID = m.getElement("MSH", 9);
// _repository.CreateAckRecord(received);
// _repository.ProcessQueue(messageID);
// AckMessages ack = new AckMessages(received, _repository);
//Console.WriteLine(ack.ack);
//Byte[] sendBuffer = Encoding.ASCII.GetBytes(ack.ack);
//args.SetBuffer(sendBuffer, 0, sendBuffer.Length);
//OwnerSocket.Send(args.Buffer);
}
}
// All the data has been read from the
// client. Display it on the console.
//Console.WriteLine("Read {0} bytes from socket. \n Data : {1}",
// content.Length, content);
// Echo the ACk message here async or in the caller
//Send(handler, content);
//TODO: Load up a send buffer to send an ack back to the calling client
//
// Clear StringBuffer, so it can receive more data from the client.
}
public void CreateAckRecord(String m)
{
// _magDb.Registries. //Add(registry);
try
{
var message = new Message(m);
AckMessRecieved ackMess = new AckMessRecieved();
ackMess.Message = m;
ackMess.MessageID = message.getElement("MSH", 9);
ackMess.SentDateTime = System.DateTime.Now;
var _magDb = new MagLink_engineEntities();
_magDb.Entry(ackMess).State = ackMess.ID == 0 ? EntityState.Added : EntityState.Modified;
_magDb.SaveChanges();
}
catch (Exception ex)
{
ErrorHandler._ErrorHandler.LogError(ex, "Error saving changes to ackMessages Received");
}
}
public Queue CreateQueueRecord(String message)
{
Queue queue = new Queue();
try
{
queue.SentDateTime = System.DateTime.Now;
queue.Message = message;
Message m = new Message(message);
queue.MessageID = m.getElement("MSH", 9);
queue.Garbage = false;
queue.Sent = false;
queue.PatientMRN = m.getElement("PID", 3);
//using (_magDb)
//{
var _magDb = new MagLink_engineEntities();
_magDb.Queues.Add(queue);
_magDb.SaveChanges();
//}
}
catch (Exception ex)
{
ErrorHandler._ErrorHandler.LogError(ex, "Error making queue record in table");
}
return queue;
}
public void CreateMhistory(String message)
{
try
{
Message_History history = new Message_History();
history.DateTime = System.DateTime.Now;
history.Message = message;
Message m = new Message(message);
history.PatID = m.getElement("PID", 3);
history.PatName = m.getElement("PID", 5);
history.messageid = m.getElement("MSH", 9);
//using (_magDb)
//{
var _magDb = new MagLink_engineEntities();
_magDb.Message_History.Add(history);
_magDb.SaveChanges();
// _magDb.Dispose();
//}
}
catch (Exception ex)
{
ErrorHandler._ErrorHandler.LogError(ex, "Error entering data in the message history table");
}
}
