protected override void OnDisconnect(DdeConversation conversation)
{
Console.WriteLine("OnDisconnect:".PadRight(16)
+ " Service='" + conversation.Service + "'"
+ " Topic='" + conversation.Topic + "'"
+ " Handle=" + conversation.Handle.ToString());
}
// **********************************************************************
public void AddConversation(DdeConversation dc)
{
lock(conversations)
conversations.Add(dc);
if(ConversationAdded != null)
ConversationAdded();
}
// **********************************************************************
public override void Disconnect(DdeConversation dc)
{
XlDdeChannel channel;
if(channels.TryGetValue(dc.Topic, out channel))
channel.RemoveConversation(dc);
base.Disconnect(dc);
}
protected override ExecuteResult OnExecute(DdeConversation conversation, string command)
{
Console.WriteLine("OnExecute:".PadRight(16)
+ " Service='" + conversation.Service + "'"
+ " Topic='" + conversation.Topic + "'"
+ " Handle=" + conversation.Handle.ToString()
+ " Command='" + command + "'");
return base.OnExecute(conversation, command);
}
// **********************************************************************
public void RemoveConversation(DdeConversation dc)
{
bool removed;
lock(conversations)
removed = conversations.Remove(dc);
if(removed && ConversationRemoved != null)
ConversationRemoved();
}
protected override PokeResult OnPoke(DdeConversation conversation, string item, byte[] data, int format)
{
Console.WriteLine("OnPoke:".PadRight(16)
+ " Service='" + conversation.Service + "'"
+ " Topic='" + conversation.Topic + "'"
+ " Handle=" + conversation.Handle.ToString()
+ " Item='" + item + "'"
+ " Data=" + data.Length.ToString()
+ " Format=" + format.ToString());
return base.OnPoke(conversation, item, data, format);
}
protected override PokeResult OnPoke(NDde.Server.DdeConversation conversation, string item, byte[] data, int format)
{
l.Debug("OnPoke " + conversation.Topic);
switch (conversation.Topic)
{
case "[ALL_DEAL]ALL_DEAL":
AllDealQueue.Add(data);
break;
}
return(PokeResult.Processed);
}
/// <summary>
/// Get Symbol and data type (quotes or dom) from dde conversation object
/// </summary>
/// <returns></returns>
protected void GetDataType(DdeConversation conversation, out string symbol, out string dataType)
{
// Check format like "[SBER03]Quotes"
Regex regex = new Regex(@"\[(?<Symbol>.*)\](?<DataType>.*)");
Match match = regex.Match(conversation.Topic);
symbol = match.Groups["Symbol"].Value;
dataType = match.Groups["DataType"].Value;
// If no symbol, format like "SBER03"
if (string.IsNullOrEmpty(symbol))
symbol = conversation.Topic;
}
/// <overloads>
/// <summary>
/// </summary>
/// </overloads>
/// <summary>
/// This terminates the specified conversation.
/// </summary>
/// <param name="conversation">
/// The conversation to terminate.
/// </param>
/// <exception cref="ArgumentNullException">
/// This is thrown when conversation is a null reference.
/// </exception>
/// <exception cref="InvalidOperationException">
/// This is thrown when the server is not registered.
/// </exception>
/// <exception cref="DdeException">
/// This is thrown when the conversation could not be terminated.
/// </exception>
public virtual void Disconnect(DdeConversation conversation)
{
ThreadStart method = delegate { DdemlObject.Disconnect(conversation.DdemlObject); };
try
{
Context.Invoke(method);
}
catch (DdemlException e)
{
throw new DdeException(e);
}
catch (ObjectDisposedException e)
{
throw new ObjectDisposedException(GetType().ToString(), e);
}
}
/// <overloads>
/// <summary>
/// </summary>
/// </overloads>
/// <summary>
/// This resumes the specified conversation.
/// </summary>
/// <param name="conversation">
/// The conversation to resume.
/// </param>
/// <exception cref="ArgumentNullException">
/// This is thrown when conversation is a null reference.
/// </exception>
/// <exception cref="InvalidOperationException">
/// This is thrown when the conversation is not paused or when the server is not registered.
/// </exception>
/// <exception cref="DdeException">
/// This is thrown when the conversation could not be resumed.
/// </exception>
public virtual void Resume(DdeConversation conversation)
{
ThreadStart method = delegate()
{
DdemlObject.Resume(conversation.DdemlObject);
};
try
{
Context.Invoke(method);
}
catch (DdemlException e)
{
throw new DdeException(e);
}
catch (ArgumentException e)
{
throw e;
}
catch (ObjectDisposedException e)
{
throw new ObjectDisposedException(this.GetType().ToString(), e);
}
}
/// <summary>
/// This is invoked when a client terminates a conversation.
/// </summary>
/// <param name="conversation">
/// The conversation associated with this event.
/// </param>
protected virtual void OnDisconnect(DdeConversation conversation)
{
}
protected override PokeResult OnPoke(DdeConversation c, string item, byte[] data, int format)
{
((DataChannel)c.Tag).PutDdeData(data);
return PokeResult.Processed;
}
protected override void OnAfterConnect(DdeConversation c)
{
DataChannel channel = Channels[c.Topic];
c.Tag = channel;
channel.IsConnected = true;
}
protected override PokeResult OnPoke(DdeConversation conversation, string item, byte[] data, int format)
{
var obj = new Dictionary<string, object>();
obj["service"] = conversation.Service;
obj["topic"] = conversation.Topic;
obj["handle"] = conversation.Handle;
obj["item"] = item;
obj["data"] = Encoding.Default.GetString(data);
obj["format"] = format;
var tcs = new TaskCompletionSource<string>();
Task.Run(async () =>
{
var result = await _OnPoke(obj);
tcs.SetResult((string)result);
});
switch (tcs.Task.Result)
{
case "NotProcessed":
return PokeResult.NotProcessed;
case "PauseConversation":
return PokeResult.PauseConversation;
case "TooBusy":
return PokeResult.TooBusy;
default:
return PokeResult.Processed;
}
}
protected override void OnAfterConnect(DdeConversation conversation)
{
var obj = new Dictionary<string, object>();
obj["service"] = conversation.Service;
obj["topic"] = conversation.Topic;
obj["handle"] = conversation.Handle;
Task.Run(() => _OnAfterConnect(obj));
}
/// <overloads>
/// <summary>
/// </summary>
/// </overloads>
/// <summary>
/// This is invoked when a client attempts to request data.
/// </summary>
/// <param name="conversation">
/// The conversation associated with this event.
/// </param>
/// <param name="item">
/// The item name associated with this event.
/// </param>
/// <param name="format">
/// The format of the data.
/// </param>
/// <returns>
/// A <c>RequestResult</c> indicating the result.
/// </returns>
/// <remarks>
/// The default implementation returns <c>RequestResult.NotProcessed</c> to the client.
/// </remarks>
protected virtual RequestResult OnRequest(DdeConversation conversation, string item, int format)
{
return RequestResult.NotProcessed;
}
protected override void OnStopAdvise(DdeConversation conversation, string item)
{
var obj = new Dictionary<string, object>();
obj["service"] = conversation.Service;
obj["topic"] = conversation.Topic;
obj["handle"] = conversation.Handle;
obj["item"] = item;
Task.Run(() => _OnStopAdvise(obj));
}
protected override bool OnStartAdvise(DdeConversation conversation, string item, int format)
{
base.OnStartAdvise(conversation, item, format);
return true;
}
protected override void OnStopAdvise(DdeConversation conversation, string item)
{
base.OnStopAdvise(conversation, item);
}
protected override PokeResult OnPoke(DdeConversation conversation, string item, byte[] data, int format)
{
base.OnPoke(conversation, item, data, format);
string key = conversation.Topic + ":" + item + ":" + format.ToString();
_Data[key] = data;
switch (item)
{
case "#NotProcessed":
{
return PokeResult.NotProcessed;
}
case "#PauseConversation":
{
if ((string)conversation.Tag == item)
{
conversation.Tag = null;
return PokeResult.Processed;
}
conversation.Tag = item;
if (!_Timer.Enabled) _Timer.Start();
return PokeResult.PauseConversation;
}
case "#Processed":
{
return PokeResult.Processed;
}
case "#TooBusy":
{
return PokeResult.TooBusy;
}
}
return PokeResult.Processed;
}
protected override RequestResult OnRequest(DdeConversation conversation, string item, int format)
{
base.OnRequest(conversation, item, format);
string key = conversation.Topic + ":" + item + ":" + format.ToString();
if (_Data.Contains(key))
{
return new RequestResult((byte[])_Data[key]);
}
return RequestResult.NotProcessed;
}
protected override ExecuteResult OnExecute(DdeConversation conversation, string command)
{
base.OnExecute(conversation, command);
_Command = command;
switch (command)
{
case "#NotProcessed":
{
return ExecuteResult.NotProcessed;
}
case "#PauseConversation":
{
if ((string)conversation.Tag == command)
{
conversation.Tag = null;
return ExecuteResult.Processed;
}
conversation.Tag = command;
if (!_Timer.Enabled) _Timer.Start();
return ExecuteResult.PauseConversation;
}
case "#Processed":
{
return ExecuteResult.Processed;
}
case "#TooBusy":
{
return ExecuteResult.TooBusy;
}
}
return ExecuteResult.Processed;
}
protected override void OnDisconnect(DdeConversation conversation)
{
base.OnDisconnect(conversation);
_Conversation.Remove(conversation.Handle);
}
protected override DdeServer.PokeResult OnPoke(DdeConversation conversation, string item, byte[] data, int format)
{
StreamWriter streamWriter = new StreamWriter("ddedatalength.txt", true);
streamWriter.WriteLine(string.Concat("Data length: ", data.Length.ToString()));
streamWriter.Close();
FileStream fileStream = new FileStream("ddedata.txt", FileMode.Append);
fileStream.Write(data, 0, data.Length);
fileStream.Dispose();
Data(new DdeData(data, conversation.Topic, item));
return DdeServer.PokeResult.Processed;
}
/// <summary>
/// This is invoked when a client sends a command.
/// </summary>
/// <param name="conversation">
/// The conversation associated with this event.
/// </param>
/// <param name="command">
/// The command to be executed.
/// </param>
/// <returns>
/// An <c>ExecuteResult</c> indicating the result.
/// </returns>
/// <remarks>
/// The default implementation returns <c>ExecuteResult.NotProcessed</c> to the client.
/// </remarks>
protected virtual ExecuteResult OnExecute(DdeConversation conversation, string command)
{
return ExecuteResult.NotProcessed;
}
protected override void OnAfterConnect(DdeConversation conversation)
{
base.OnAfterConnect(conversation);
_Conversation.Add(conversation.Handle, conversation);
}
/// <summary>
/// This is invoked when a client sends data.
/// </summary>
/// <param name="conversation">
/// The conversation associated with this event.
/// </param>
/// <param name="item">
/// The item name associated with this event.
/// </param>
/// <param name="data">
/// The data associated with this event.
/// </param>
/// <param name="format">
/// The format of the data.
/// </param>
/// <returns>
/// A <c>PokeResult</c> indicating the result.
/// </returns>
/// <remarks>
/// The default implementation returns <c>PokeResult.NotProcessed</c> to the client.
/// </remarks>
protected virtual PokeResult OnPoke(DdeConversation conversation, string item, byte[] data, int format)
{
return PokeResult.NotProcessed;
}
protected override void OnAfterConnect(DdemlConversation conversation)
{
DdeConversation c = new DdeConversation(conversation);
conversation.Tag = c;
_Parent.OnAfterConnect(c);
}
protected override bool OnStartAdvise(DdeConversation conversation, string item, int format)
{
var obj = new Dictionary<string, object>();
obj["service"] = conversation.Service;
obj["topic"] = conversation.Topic;
obj["handle"] = conversation.Handle;
obj["item"] = item;
obj["format"] = format;
var tcs = new TaskCompletionSource<bool>();
Task.Run(async () =>
{
var result = await _OnStartAdvise(obj);
tcs.SetResult((bool)result);
});
return tcs.Task.Result;
}
protected override PokeResult OnPoke(DdeConversation conversation, string item, byte[] data, int format)
{
Console.WriteLine("OnPoke:".PadRight(16)
+ " Service='" + conversation.Service + "'"
+ " Topic='" + conversation.Topic + "'"
+ " Handle=" + conversation.Handle.ToString()
+ " Item='" + item + "'"
+ " Data=" + data.Length.ToString()
+ " Format=" + format.ToString());
// Tell the client that the data was processed.
return PokeResult.Processed;
}
protected override ExecuteResult OnExecute(DdeConversation conversation, string command)
{
var obj = new Dictionary<string, object>();
obj["service"] = conversation.Service;
obj["topic"] = conversation.Topic;
obj["handle"] = conversation.Handle;
obj["command"] = command;
var tcs = new TaskCompletionSource<string>();
Task.Run(async () =>
{
var result = await _OnExecute(obj);
tcs.SetResult((string)result);
});
switch (tcs.Task.Result)
{
case "NotProcessed":
return ExecuteResult.NotProcessed;
case "PauseConversation":
return ExecuteResult.PauseConversation;
case "TooBusy":
return ExecuteResult.TooBusy;
default:
return ExecuteResult.Processed;
}
}
protected override bool OnStartAdvise(DdeConversation conversation, string item, int format)
{
Console.WriteLine("OnStartAdvise:".PadRight(16)
+ " Service='" + conversation.Service + "'"
+ " Topic='" + conversation.Topic + "'"
+ " Handle=" + conversation.Handle.ToString()
+ " Item='" + item + "'"
+ " Format=" + format.ToString());
// Initiate the advisory loop only if the format is CF_TEXT.
return format == 1;
}
protected override RequestResult OnRequest(DdeConversation conversation, string item, int format)
{
var obj = new Dictionary<string, object>();
obj["service"] = conversation.Service;
obj["topic"] = conversation.Topic;
obj["handle"] = conversation.Handle;
obj["item"] = item;
obj["format"] = format;
var tcs = new TaskCompletionSource<string>();
Task.Run(async () =>
{
var result = await _OnRequest(obj);
tcs.SetResult((string)result);
});
var text = tcs.Task.Result;
// Return data to the client only if the format is CF_TEXT.
if (format == 1)
{
return new RequestResult(System.Text.Encoding.Default.GetBytes(text + "\0"));
}
return RequestResult.NotProcessed;
}
protected override void OnDisconnect(NDde.Server.DdeConversation conversation)
{
base.OnDisconnect(conversation);
l.Debug(String.Format("Topic : {0} has been disconnected!", conversation.Topic));
}
protected override ExecuteResult OnExecute(DdeConversation conversation, string command)
{
Console.WriteLine("OnExecute:".PadRight(16)
+ " Service='" + conversation.Service + "'"
+ " Topic='" + conversation.Topic + "'"
+ " Handle=" + conversation.Handle.ToString()
+ " Command='" + command + "'");
// Tell the client that the command was processed.
return ExecuteResult.Processed;
}
protected override void OnDisconnect(DdeConversation c)
{
((DataChannel)c.Tag).IsConnected = false;
}
protected override RequestResult OnRequest(DdeConversation conversation, string item, int format)
{
Console.WriteLine("OnRequest:".PadRight(16)
+ " Service='" + conversation.Service + "'"
+ " Topic='" + conversation.Topic + "'"
+ " Handle=" + conversation.Handle.ToString()
+ " Item='" + item + "'"
+ " Format=" + format.ToString());
// Return data to the client only if the format is CF_TEXT.
if (format == 1)
{
return new RequestResult(System.Text.Encoding.ASCII.GetBytes("Time=" + DateTime.Now.ToString() + "\0"));
}
return RequestResult.NotProcessed;
}
/// <summary>
/// This is invoked when a client attempts to initiate an advise loop.
/// </summary>
/// <param name="conversation">
/// The conversation associated with this event.
/// </param>
/// <param name="item">
/// The item name associated with this event.
/// </param>
/// <param name="format">
/// The format of the data.
/// </param>
/// <returns>
/// True to allow the advise loop, false otherwise.
/// </returns>
/// <remarks>
/// The default implementation accepts all advise loops.
/// </remarks>
protected virtual bool OnStartAdvise(DdeConversation conversation, string item, int format)
{
return true;
}
protected override void OnStopAdvise(DdeConversation conversation, string item)
{
Console.WriteLine("OnStopAdvise:".PadRight(16)
+ " Service='" + conversation.Service + "'"
+ " Topic='" + conversation.Topic + "'"
+ " Handle=" + conversation.Handle.ToString()
+ " Item='" + item + "'");
}
/// <summary>
/// This is invoked when a client terminates an advise loop.
/// </summary>
/// <param name="conversation">
/// The conversation associated with this event.
/// </param>
/// <param name="item">
/// The item name associated with this event.
/// </param>
protected virtual void OnStopAdvise(DdeConversation conversation, string item)
{
}
/// <summary>
/// This is invoked when a client has successfully established a conversation.
/// </summary>
/// <param name="conversation">
/// The conversation associated with this event.
/// </param>
protected virtual void OnAfterConnect(DdeConversation conversation)
{
}
protected override bool OnStartAdvise(DdeConversation conversation, string item, int format)
{
Console.WriteLine("OnStartAdvise:".PadRight(16)
+ " Service='" + conversation.Service + "'"
+ " Topic='" + conversation.Topic + "'"
+ " Handle=" + conversation.Handle.ToString()
+ " Item='" + item + "'"
+ " Format=" + format.ToString());
return base.OnStartAdvise(conversation, item, format);
}
