private static PandaPacket isPriorRequest(string clientID, PandaPacket request)
{
//Return prior response if was a prior message
//Return null if not a prior message
PandaPacket response = null;
try {
//Check if this was a prior message
PandaPacket priorPacket = null;
if (LastRequest != null)
{
if (clientID == LastRequest.ClientID && LastRequest.MessageNumber == request.MessageNumber)
{
priorPacket = LastRequest;
}
}
//Prior request? return prior response
if (priorPacket != null)
{
response = priorPacket.Response;
}
}
catch (Exception ex) {
throw new ApplicationException("Error occurred while validating message", ex);
}
return(response);
}
/// <summary>Creates a PandaPacket response to the specified PandaPacket request.</summary>
/// <param name="clientID">A unique identifier for the socket client; not required.</param>
/// <param name="messageCode">Identifies the PandA request/response message type.</param>
/// <param name="flag">Message status (0=message OK; 1=message error).</param>
/// <param name="iterator">Count of records in the body (always 1).</param>
/// <param name="messageBody">Message data.</param>
/// <param name="messageNumber">Unique message identifier from 0001 - 9999.</param>
/// <param name="request">A reference to the original Tsort.PandA.PandaPacket request.</param>
/// <returns>An instance of Tsort.PandA.PandaPacket.</returns>
public static PandaPacket Encode(string clientID, int messageCode, int flag, int iterator, string messageBody, int messageNumber, PandaPacket request)
{
//Encode a PandA packet
PandaPacket packet = null;
try {
//Form the message packet
packet = new PandaPacket();
packet.mClientID = clientID;
packet.mReceived = DateTime.Now;
packet.mMessageCode = messageCode;
packet.mMessageNumber = messageNumber;
packet.mOriginalMessageCode = (request != null) ? request.MessageCode : 0;
packet.mMessageFlags = flag;
packet.mRecordIterator = iterator;
packet.mMessageBody = messageBody;
if (request != null)
{
request.Response = packet;
}
//Determine message length and dimension message packet
packet.mMessageLength = LEN_MIN + packet.mMessageBody.Length;
packet.mPacket = new byte[packet.mMessageLength];
byte[] bytes = makePacketBytes(packet);
Array.Copy(bytes, 0, packet.mPacket, 0, bytes.Length);
packet.mMessage = new ASCIIEncoding().GetString(packet.mPacket);
packet.mValid = true;
}
catch (ApplicationException ex) { packet.mException = ex; packet.mValid = false; }
catch (Exception ex) { packet.mException = new ApplicationException("Message packet encoding failed.", ex); packet.mValid = false; }
return(packet);
}
private static PandaPacket getLabelDataResponse(string clientID, PandaPacket request)
{
//
PandaPacket response = null;
DataSet ds = null;
try {
//Extract message body
string barcode1 = request.MessageBody.Substring(0, 32).TrimEnd();
string barcode2 = request.MessageBody.Substring(32, 32).TrimEnd();
string barcode3 = request.MessageBody.Substring(64, 32).TrimEnd();
string barcode4 = request.MessageBody.Substring(96, 32).TrimEnd();
string barcode5 = request.MessageBody.Substring(128, 32).TrimEnd();
string barcode6 = request.MessageBody.Substring(160, 32).TrimEnd();
float weight = Convert.ToInt32(request.MessageBody.Substring(192, 5)) / 100;
//Process the label data request
ds = CartonMgr.ProcessLabelDataRequest(barcode1, barcode2, barcode3, barcode4, barcode5, barcode6, weight);
if (ds != null)
{
//New carton
response = PandaPacket.Encode(clientID, RESPONSE_LABELDATA, request, 0, 1, PandaPacket.FormatLabelDataMessageBody(ds.Tables["PandATable"].Rows[0]["CartonID"].ToString(), int.Parse(ds.Tables["PandATable"].Rows[0]["StatusCode"].ToString()), ds.Tables["PandATable"].Rows[0]["LabelData"].ToString()));
}
}
catch (Exception ex) {
AppTrace.Instance().TheTrace.WriteLine(new TraceMessage("Error occurred while processing request for label data- " + ex.ToString(), AppLib.EVENTLOGNAME, LogLevel.Error, "PacketMgr"));
if (ds != null)
{
response = PandaPacket.Encode(clientID, RESPONSE_LABELDATA, request, 0, 1, PandaPacket.FormatLabelDataMessageBody(ds.Tables["PandATable"].Rows[0]["CartonID"].ToString(), int.Parse(ds.Tables["PandATable"].Rows[0]["StatusCode"].ToString()), ds.Tables["PandATable"].Rows[0]["LabelData"].ToString()));
}
}
return(response);
}
private static PandaPacket getHeartbeatResponse(string clientID, PandaPacket request)
{
//Reply with a heartbeat signal
PandaPacket response = null;
try {
response = PandaPacket.Encode(clientID, RESPONSE_HEARTBEAT, request, 0, 1, "");
}
catch (Exception ex) {
AppTrace.Instance().TheTrace.WriteLine(new TraceMessage("An error occurred while processing request for heartbeat." + ex.ToString(), AppLib.EVENTLOGNAME, LogLevel.Error, "PacketMgr"));
}
return(response);
}
private static byte[] makePacketBytes(PandaPacket packet)
{
//Create the byte array for the specified packet
byte[] bytes = new byte[packet.mMessageLength];
bytes[0] = STX;
string msgLen = packet.mMessageLength.ToString().PadLeft(5, '0');
bytes[1] = (byte)Char.Parse(msgLen.Substring(0, 1));
bytes[2] = (byte)Char.Parse(msgLen.Substring(1, 1));
bytes[3] = (byte)Char.Parse(msgLen.Substring(2, 1));
bytes[4] = (byte)Char.Parse(msgLen.Substring(3, 1));
bytes[5] = (byte)Char.Parse(msgLen.Substring(4, 1));
string msgCode = packet.mMessageCode.ToString().PadLeft(4, '0');
bytes[6] = (byte)Char.Parse(msgCode.Substring(0, 1));
bytes[7] = (byte)Char.Parse(msgCode.Substring(1, 1));
bytes[8] = (byte)Char.Parse(msgCode.Substring(2, 1));
bytes[9] = (byte)Char.Parse(msgCode.Substring(3, 1));
string msgNum = packet.mMessageNumber.ToString().PadLeft(4, '0');
bytes[10] = (byte)Char.Parse(msgNum.Substring(0, 1));
bytes[11] = (byte)Char.Parse(msgNum.Substring(1, 1));
bytes[12] = (byte)Char.Parse(msgNum.Substring(2, 1));
bytes[13] = (byte)Char.Parse(msgNum.Substring(3, 1));
string msgOrigCode = packet.mOriginalMessageCode.ToString().PadLeft(4, '0');
bytes[14] = (byte)Char.Parse(msgOrigCode.Substring(0, 1));
bytes[15] = (byte)Char.Parse(msgOrigCode.Substring(1, 1));
bytes[16] = (byte)Char.Parse(msgOrigCode.Substring(2, 1));
bytes[17] = (byte)Char.Parse(msgOrigCode.Substring(3, 1));
bytes[18] = (byte)Char.Parse(packet.mMessageFlags.ToString());
string msgIterator = packet.mRecordIterator.ToString().PadLeft(3, '0');
bytes[19] = (byte)Char.Parse(msgIterator.Substring(0, 1));
bytes[20] = (byte)Char.Parse(msgIterator.Substring(1, 1));
bytes[21] = (byte)Char.Parse(msgIterator.Substring(2, 1));
for (int i = 0; i < packet.mMessageBody.Length; i++)
{
bytes[i + LEN_MIN - 1] = (byte)Char.Parse(packet.mMessageBody.Substring(i, 1));
}
bytes[packet.mMessageLength - 1] = ETX;
return(bytes);
}
/// <summary>Decodes a PandA Message packet into a PandaPacket object.</summary>
/// <param name="clientID">A unique identifier for the socket client; not required.</param>
/// <param name="message">A byte array containing a message that adheres to the PandA Message Protocol.</param>
/// <returns>An instance of Tsort.PandA.PandaPacket.</returns>
public static PandaPacket Decode(string clientID, byte[] message)
{
//Decode a PandA message packet
//NOTE: This method never throws an exception; the exception is in the PandaPacket
PandaPacket packet = null;
Encoding oEncoding = new ASCIIEncoding();
try {
//Retain packet
packet = new PandaPacket();
packet.mClientID = clientID;
packet.mReceived = DateTime.Now;
packet.mPacket = new byte[message.Length];
Array.Copy(message, 0, packet.mPacket, 0, message.Length);
//Validate packet integrity
if (packet.mPacket.Length < LEN_MIN)
{
throw new ApplicationException("Invalid message length; length less than minimum.");
}
if ((packet.mPacket[0] != STX) || (packet.mPacket[packet.mPacket.Length - 1] != ETX))
{
throw new ApplicationException("The message either did not begin with STX or did not end with ETX");
}
//Extract message parameters
packet.mMessage = oEncoding.GetString(packet.mPacket);
packet.mMessageLength = Convert.ToInt32(packet.mMessage.Substring(START_MSG, LEN_MSG));
packet.mMessageCode = Convert.ToInt32(packet.mMessage.Substring(START_CODE, LEN_CODE));
packet.mMessageNumber = Convert.ToInt32(packet.mMessage.Substring(START_NUM, LEN_NUM));
packet.mOriginalMessageCode = Convert.ToInt32(packet.mMessage.Substring(START_ORIGCODE, LEN_CODE));
packet.mMessageFlags = Convert.ToInt32(packet.mMessage.Substring(START_FLAGS, LEN_FLAGS));
packet.mRecordIterator = Convert.ToInt32(packet.mMessage.Substring(START_ITERATOR, LEN_ITERATOR));
packet.mMessageBody = packet.mMessage.Substring(START_BODY, packet.mMessageLength - START_BODY - 1);
//Validate packet integrity
if (ValidateMessageLength && packet.mPacket.Length != packet.mMessageLength)
{
throw new ApplicationException("Invalid message length; length does not match header length member.");
}
packet.mValid = true;
}
catch (ApplicationException ex) { packet.mException = ex; packet.mValid = false; }
catch (Exception ex) { packet.mException = new ApplicationException("Message packet decoding failed.", ex); packet.mValid = false; }
return(packet);
}
private static PandaPacket getVerifyLabelResponse(string clientID, PandaPacket request)
{
//Verify the requested carton
PandaPacket response = null;
try {
//Find the carton
string cartonID = request.MessageBody.Substring(0, PandaPacket.CartonIDLength).TrimEnd();
string verifyCode = request.MessageBody.Substring(PandaPacket.CartonIDLength, 1).TrimEnd();
string verifyFlag = CartonMgr.ProcessVerifyLabelRequest(cartonID, verifyCode);
response = PandaPacket.Encode(clientID, RESPONSE_VERIFYLABEL, request, 0, 1, verifyFlag);
}
catch (Exception ex) {
AppTrace.Instance().TheTrace.WriteLine(new TraceMessage("An error occurred while processing request to verify label." + ex.ToString(), AppLib.EVENTLOGNAME, LogLevel.Error, "PacketMgr"));
response = PandaPacket.Encode(clientID, RESPONSE_VERIFYLABEL, request, 0, 1, "N");
}
return(response);
}
public static byte[] ProcessPandARequest(string clientID, byte[] bytes)
{
//Process a PandA request from a remote socket client
PandaPacket request = null;
PandaPacket response = null;
DateTime started = DateTime.Now;
try {
//Process the message
request = PandaPacket.Decode(clientID, bytes);
AppTrace.Instance().TheTrace.WriteLine(new TraceMessage("REQUEST:" + request.Message, AppLib.EVENTLOGNAME, LogLevel.Information, "PacketMgr"));
if (request.Valid)
{
//Check if this was a prior request
PandaPacket priorResponse = isPriorRequest(clientID, request);
if (priorResponse != null)
{
//This was a prior message; return prior response
response = priorResponse;
AppTrace.Instance().TheTrace.WriteLine(new TraceMessage("PRIOR RESPONSE: " + priorResponse.Message, AppLib.EVENTLOGNAME, LogLevel.Information, "PacketMgr"));
}
else
{
//New, valid message; persist request and route to message handler
switch (request.MessageCode)
{
case REQUEST_LABELDATA:
response = getLabelDataResponse(clientID, request);
LastRequest = request;
try { request.ProcessingTime = ((TimeSpan)DateTime.Now.Subtract(started)).TotalSeconds; } catch {}
if (LabelDataRequestComplete != null)
{
LabelDataRequestComplete(null, new PandaPacketEventArgs(request));
}
break;
case REQUEST_VERIFYLABEL:
response = getVerifyLabelResponse(clientID, request);
LastRequest = request;
try { request.ProcessingTime = ((TimeSpan)DateTime.Now.Subtract(started)).TotalSeconds; } catch {}
if (VerifyLabelRequestComplete != null)
{
VerifyLabelRequestComplete(null, new PandaPacketEventArgs(request));
}
break;
case REQUEST_HEARTBEAT:
response = getHeartbeatResponse(clientID, request);
if (HeartbeatRequestComplete != null)
{
HeartbeatRequestComplete(null, EventArgs.Empty);
}
break;
case REQUEST_RESEND:
response = LastRequest.Response;
AppTrace.Instance().TheTrace.WriteLine(new TraceMessage("Resend requested.", AppLib.EVENTLOGNAME, LogLevel.Warning, "PacketMgr"));
if (ResendRequestComplete != null)
{
ResendRequestComplete(null, EventArgs.Empty);
}
break;
default:
AppTrace.Instance().TheTrace.WriteLine(new TraceMessage("Unknown message code.", AppLib.EVENTLOGNAME, LogLevel.Warning, "PacketMgr"));
break;
}
}
}
else
{
//Invalid message packet
response = PandaPacket.Encode(clientID, RESPONSE_MSGERROR, request, 0, 0, "");
AppTrace.Instance().TheTrace.WriteLine(new TraceMessage("Message failed (decode) validation...", AppLib.EVENTLOGNAME, LogLevel.Warning, "PacketMgr"));
}
}
catch (Exception ex) {
response = PandaPacket.Encode(clientID, RESPONSE_MSGERROR, request, 0, 0, "");
AppTrace.Instance().TheTrace.WriteLine(new TraceMessage("Error occurred while processing message: " + ex.ToString(), AppLib.EVENTLOGNAME, LogLevel.Error, "PacketMgr"));
}
return(response != null?response.Bytes:null);
}
private void OnMenuClick(object sender, System.EventArgs e)
{
//Event hanlder for menu click events
try {
MenuItem mnu = (MenuItem)sender;
switch (mnu.Text)
{
case "Open":
switch (this.tabMain.SelectedTab.Name)
{
case "tabCtns": break;
case "tabMsgs":
OpenFileDialog dlgOpen = new OpenFileDialog();
dlgOpen.Filter = "Text Files (*.xml) | *.xml";
dlgOpen.FilterIndex = 0;
if (dlgOpen.ShowDialog(this) == DialogResult.OK)
{
PandaDS packets = new PandaDS();
packets.ReadXml(dlgOpen.FileName, XmlReadMode.ReadSchema);
if (packets.PacketTable.Rows.Count == 0)
{
MessageBox.Show(this, "No PandA packets found in file " + dlgOpen.FileName + ".", "Open PandA Packets", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
for (int i = 0; i < packets.PacketTable.Rows.Count; i++)
{
PandaDS.PacketTableRow packet = packets.PacketTable[i];
this.lsvMsgs.Items.Add(new ListViewItem(new string[] { packet.ClientID, packet.Received.ToString("MM-dd-yyyy HH:mm:ss.fff"), packet.ProcessingTime.ToString(), packet.MessageLength.ToString(), packet.MessageCode.ToString(), packet.MessageNumber.ToString(), packet.OriginalMessageCode.ToString(), packet.MessageFlags.ToString(), packet.RecordIterator.ToString(), packet.MessageBody, packet.Valid.ToString(), packet.Exception }));
}
}
}
break;
case "tabTrace": break;
}
break;
case "Clear":
switch (this.tabMain.SelectedTab.Name)
{
case "tabCtns": this.lsvCtns.Items.Clear(); break;
case "tabMsgs": this.lsvMsgs.Items.Clear(); break;
case "tabTrace": this.txtTrace.Clear(); break;
}
break;
case "Save":
#region Save a view to file
SaveFileDialog dlgSave = new SaveFileDialog();
dlgSave.AddExtension = true;
dlgSave.FilterIndex = 0;
dlgSave.OverwritePrompt = true;
switch (this.tabMain.SelectedTab.Name)
{
case "tabCtns":
dlgSave.Filter = "Text Files (*.xml) | *.xml";
dlgSave.Title = "Save Cartons As...";
dlgSave.FileName = "cartons_" + DateTime.Today.ToString("yyyyMMdd") + ".xml";
if (dlgSave.ShowDialog(this) == DialogResult.OK)
{
PandaDS cartons = new PandaDS();
#region Populate dataset with all cartons that are in lsvCtns
for (int i = 0; i < this.lsvCtns.Items.Count; i++)
{
PandaDS.CartonTableRow carton = cartons.CartonTable.NewCartonTableRow();
carton.CartonID = this.lsvCtns.Items[i].SubItems[0].Text;
carton.StatusCode = int.Parse(this.lsvCtns.Items[i].SubItems[1].Text);
carton.LabelFormat = this.lsvCtns.Items[i].SubItems[2].Text;
carton.LabelException = this.lsvCtns.Items[i].SubItems[3].Text;
carton.Verify = this.lsvCtns.Items[i].SubItems[4].Text;
carton.SaveException = this.lsvCtns.Items[i].SubItems[5].Text;
carton.Barcode1 = this.lsvCtns.Items[i].SubItems[6].Text;
carton.Barcode2 = this.lsvCtns.Items[i].SubItems[7].Text;
carton.Barcode3 = this.lsvCtns.Items[i].SubItems[8].Text;
carton.Barcode4 = this.lsvCtns.Items[i].SubItems[9].Text;
carton.Barcode5 = this.lsvCtns.Items[i].SubItems[10].Text;
carton.Barcode6 = this.lsvCtns.Items[i].SubItems[11].Text;
carton.ItemWeight = decimal.Parse(this.lsvCtns.Items[i].SubItems[12].Text);
cartons.CartonTable.AddCartonTableRow(carton);
}
#endregion
cartons.WriteXml(dlgSave.FileName, XmlWriteMode.WriteSchema);
}
break;
case "tabMsgs":
dlgSave.Filter = "Text Files (*.xml) | *.xml";
dlgSave.Title = "Save Packets As...";
dlgSave.FileName = "packets_" + DateTime.Today.ToString("yyyyMMdd") + ".xml";
if (dlgSave.ShowDialog(this) == DialogResult.OK)
{
PandaDS packets = new PandaDS();
#region Populate dataset with all packets that are in lsvMsgs
for (int i = 0; i < this.lsvMsgs.Items.Count; i++)
{
PandaDS.PacketTableRow packet = packets.PacketTable.NewPacketTableRow();
packet.ClientID = this.lsvMsgs.Items[i].SubItems[0].Text;
packet.Received = DateTime.Parse(this.lsvMsgs.Items[i].SubItems[1].Text);
packet.ProcessingTime = float.Parse(this.lsvMsgs.Items[i].SubItems[2].Text);
packet.MessageLength = int.Parse(this.lsvMsgs.Items[i].SubItems[3].Text);
packet.MessageCode = int.Parse(this.lsvMsgs.Items[i].SubItems[4].Text);
packet.MessageNumber = int.Parse(this.lsvMsgs.Items[i].SubItems[5].Text);
packet.OriginalMessageCode = int.Parse(this.lsvMsgs.Items[i].SubItems[6].Text);
packet.MessageFlags = int.Parse(this.lsvMsgs.Items[i].SubItems[7].Text);
packet.RecordIterator = int.Parse(this.lsvMsgs.Items[i].SubItems[8].Text);
packet.MessageBody = this.lsvMsgs.Items[i].SubItems[9].Text;
packet.Valid = bool.Parse(this.lsvMsgs.Items[i].SubItems[10].Text);
packet.Exception = this.lsvMsgs.Items[i].SubItems[11].Text;
packets.PacketTable.AddPacketTableRow(packet);
}
#endregion
packets.WriteXml(dlgSave.FileName, XmlWriteMode.WriteSchema);
}
break;
case "tabTrace":
dlgSave.Filter = "Text Files (*.txt) | *.txt";
dlgSave.Title = "Save Trace Log As...";
dlgSave.FileName = "tracelog_" + DateTime.Today.ToString("yyyyMMdd") + ".txt";
if (dlgSave.ShowDialog(this) == DialogResult.OK)
{
this.txtTrace.SaveFile(dlgSave.FileName, RichTextBoxStreamType.PlainText);
}
break;
}
#endregion
break;
case "Run":
switch (this.tabMain.SelectedTab.Name)
{
case "tabCtns": break;
case "tabMsgs":
#region Populate datarow with all fields that are in lsvMsgs selected item
PandaDS packets = new PandaDS();
PandaDS.PacketTableRow packet = packets.PacketTable.NewPacketTableRow();
packet.ClientID = this.lsvMsgs.SelectedItems[0].SubItems[0].Text;
packet.Received = DateTime.Parse(this.lsvMsgs.SelectedItems[0].SubItems[1].Text);
packet.ProcessingTime = float.Parse(this.lsvMsgs.SelectedItems[0].SubItems[2].Text);
packet.MessageLength = int.Parse(this.lsvMsgs.SelectedItems[0].SubItems[3].Text);
packet.MessageCode = int.Parse(this.lsvMsgs.SelectedItems[0].SubItems[4].Text);
packet.MessageNumber = int.Parse(this.lsvMsgs.SelectedItems[0].SubItems[5].Text);
packet.OriginalMessageCode = int.Parse(this.lsvMsgs.SelectedItems[0].SubItems[6].Text);
packet.MessageFlags = int.Parse(this.lsvMsgs.SelectedItems[0].SubItems[7].Text);
packet.RecordIterator = int.Parse(this.lsvMsgs.SelectedItems[0].SubItems[8].Text);
packet.MessageBody = this.lsvMsgs.SelectedItems[0].SubItems[9].Text;
packet.Valid = bool.Parse(this.lsvMsgs.SelectedItems[0].SubItems[10].Text);
packet.Exception = this.lsvMsgs.SelectedItems[0].SubItems[11].Text;
#endregion
PandaPacket request = new PandaPacket(packet);
this.mPandaSvc.ProcessPandARequest("", request);
break;
case "tabTrace": break;
}
break;
}
}
catch (Exception ex) { reportError(ex); }
}
/// <summary></summary>
/// <param name="packet"></param>
public PandaPacketEventArgs(PandaPacket packet)
{
this._packet = packet;
}
/// <summary>Processes </summary>
/// <param name="clientID">A unique identifier for the requestor (can be an empty string).</param>
/// <param name="request">A Tsort.PandA.PandaPacket request.</param>
/// <exceptions cref="ApplicationException">Thrown for unexpected errors.</exceptions>
/// <returns>An instance of Tsort.PandA.PandaPacket containing the response.</returns>
public PandaPacket ProcessPandARequest(string clientID, PandaPacket request)
{
//Process a PandA request from a remote socket client
PandaPacket response = null;
DateTime started = DateTime.Now;
try {
//Process the PandA message; Decode() always returns a non-null request object
ArgixTrace.WriteLine(new TraceMessage("", AppLib.PRODUCTNAME, LogLevel.Information, "PandaSvc"));
ArgixTrace.WriteLine(new TraceMessage("REQUEST:" + request.Message, AppLib.PRODUCTNAME, LogLevel.Information, "PandaSvc"));
if (request.Valid)
{
//Check if this was a prior request
PandaPacket priorResponse = isPriorRequest(clientID, request);
if (priorResponse != null)
{
//This was a prior message; return prior response
response = priorResponse;
ArgixTrace.WriteLine(new TraceMessage("PRIOR RESPONSE: " + priorResponse.Message, AppLib.PRODUCTNAME, LogLevel.Information, "PandaSvc"));
}
else
{
//New, valid message; persist request and route to message handler
switch (request.MessageCode)
{
case REQUEST_LABELDATA:
DataSet ds = null;
try {
//Extract message body and process message request
string barcode1 = request.MessageBody.Substring(0, 32).TrimEnd();
string barcode2 = request.MessageBody.Substring(32, 32).TrimEnd();
string barcode3 = request.MessageBody.Substring(64, 32).TrimEnd();
string barcode4 = request.MessageBody.Substring(96, 32).TrimEnd();
string barcode5 = request.MessageBody.Substring(128, 32).TrimEnd();
string barcode6 = request.MessageBody.Substring(160, 32).TrimEnd();
decimal weight = decimal.Parse(request.MessageBody.Substring(192, 5)) / 100;
string[] inputs = new string[] { barcode1, barcode2, barcode3, barcode4, barcode5, barcode6 };
ds = ProcessLabelDataRequest(inputs, weight);
if (ds != null)
{
response = PandaPacket.Encode(clientID, RESPONSE_LABELDATA, 0, 1, PandaPacket.FormatLabelDataMessageBody(ds.Tables["PandATable"].Rows[0]["CartonID"].ToString(), int.Parse(ds.Tables["PandATable"].Rows[0]["StatusCode"].ToString()), ds.Tables["PandATable"].Rows[0]["LabelData"].ToString()), request.MessageNumber, request);
}
}
catch (Exception ex) {
if (ds != null)
{
response = PandaPacket.Encode(clientID, RESPONSE_LABELDATA, 0, 1, PandaPacket.FormatLabelDataMessageBody(ds.Tables["PandATable"].Rows[0]["CartonID"].ToString(), int.Parse(ds.Tables["PandATable"].Rows[0]["StatusCode"].ToString()), ds.Tables["PandATable"].Rows[0]["LabelData"].ToString()), request.MessageNumber, request);
}
ArgixTrace.WriteLine(new TraceMessage("An error occurred while processing Panda label data request-->" + ex.Message, AppLib.PRODUCTNAME, LogLevel.Error, "PandaSvc"));
}
this.mLastRequest = request;
try { request.ProcessingTime = (float)((TimeSpan)DateTime.Now.Subtract(started)).TotalSeconds; } catch {}
if (PandaRequestComplete != null)
{
PandaRequestComplete(null, new PandaPacketEventArgs(request));
}
break;
case REQUEST_VERIFYLABEL:
try {
//Find the carton
string cartonID = request.MessageBody.Substring(0, PandaPacket.CartonIDLength).TrimEnd();
string verifyCode = request.MessageBody.Substring(PandaPacket.CartonIDLength, 1).TrimEnd();
string verifyFlag = ProcessVerifyLabelRequest(cartonID, verifyCode);
response = PandaPacket.Encode(clientID, RESPONSE_VERIFYLABEL, 0, 1, verifyFlag, request.MessageNumber, request);
}
catch (Exception ex) {
response = PandaPacket.Encode(clientID, RESPONSE_VERIFYLABEL, 0, 1, VERIFY_NO, request.MessageNumber, request);
ArgixTrace.WriteLine(new TraceMessage("An error occurred while processing Panda verify label request-->" + ex.Message, AppLib.PRODUCTNAME, LogLevel.Error, "PandaSvc"));
}
this.mLastRequest = request;
try { request.ProcessingTime = (float)((TimeSpan)DateTime.Now.Subtract(started)).TotalSeconds; } catch {}
if (PandaRequestComplete != null)
{
PandaRequestComplete(null, new PandaPacketEventArgs(request));
}
break;
case REQUEST_RESEND:
response = this.mLastRequest.Response;
ArgixTrace.WriteLine(new TraceMessage("Resend requested.", AppLib.PRODUCTNAME, LogLevel.Warning, "PandaSvc"));
if (PandaResendComplete != null)
{
PandaResendComplete(null, EventArgs.Empty);
}
break;
case REQUEST_HEARTBEAT:
try {
response = PandaPacket.Encode(clientID, RESPONSE_HEARTBEAT, 0, 1, "", request.MessageNumber, request);
}
catch (Exception ex) {
ArgixTrace.WriteLine(new TraceMessage("An error occurred while processing Panda heartbeat request-->" + ex.Message, AppLib.PRODUCTNAME, LogLevel.Error, "PandaSvc"));
}
if (HeartbeatRequestComplete != null)
{
HeartbeatRequestComplete(null, EventArgs.Empty);
}
break;
default:
ArgixTrace.WriteLine(new TraceMessage("Unknown message code.", AppLib.PRODUCTNAME, LogLevel.Warning, "PandaSvc"));
break;
}
}
}
else
{
//Invalid message packet
response = PandaPacket.Encode(clientID, RESPONSE_MSGERROR, 0, 0, "", request.MessageNumber, request);
ArgixTrace.WriteLine(new TraceMessage("Message failed (decode) validation...", AppLib.PRODUCTNAME, LogLevel.Warning, "PandaSvc"));
}
}
catch (Exception ex) {
response = PandaPacket.Encode(clientID, RESPONSE_MSGERROR, 0, 0, "", request.MessageNumber, request);
ArgixTrace.WriteLine(new TraceMessage("An error occurred while processing Panda message-->" + ex.Message, AppLib.PRODUCTNAME, LogLevel.Error, "PandaSvc"));
}
finally {
if (response != null)
{
ArgixTrace.WriteLine(new TraceMessage("RESPONSE: " + new ASCIIEncoding().GetString(response.Bytes), AppLib.PRODUCTNAME, LogLevel.Information, "PandaSvc"));
}
else
{
ArgixTrace.WriteLine(new TraceMessage("RESPONSE: NULL", AppLib.PRODUCTNAME, LogLevel.Warning, "PandaSvc"));
}
}
return(response);
}