private void Send(ClientInfo client, ContainerMessage message)
{
try
{
string mc = message.Content;
if (mc.Length > 20)
{
mc = mc.Substring(0, 20) + "...";
}
RaiseNewTextEvent(string.Format("Sending message [{0} -> {1}: {2} # {3}]", message.Sender, message.Receiver, message.Info, mc));
string s = ContainerMessage.Serialize(message);
byte[] buffer = ASCIIEncoding.Unicode.GetBytes(s);
BasicMessage m = new BasicMessage(_serverGuid, buffer);
client.TcpSocketClientHandler.SendAsync(m);
}
catch (SocketException se)
{
// "An existing connection was forcibly closed by the remote host"
RaiseNewTextEvent("Container " + _containerNames[client] + " is disconnected.");
_containerNames.Remove(client);
client.TcpSocketClientHandler.Close();
RaiseNewTextEvent("Exception in Server.Send: " + se.Message + ".");
}
catch (Exception ex)
{
RaiseNewTextEvent("Exception in Server.Send: " + ex.Message + ".");
}
}
internal void MoveAgent(AgentState state, string destination)
{
string serializedAgentState = ContainerMessage.Serialize(state);
var cm = new ContainerMessage(_name, destination, "Request Move Agent", serializedAgentState);
Send(cm);
}
private void ProcessMessage(ContainerMessage message)
{
string mc = message.Content;
if (mc.Length > 20)
{
mc = mc.Substring(0, 20) + "...";
}
RaiseNewTextEvent(string.Format("Message received [{0} -> {1}: {2} # {3}]", message.Sender, message.Receiver, message.Info, mc));
if (message.Sender == "Server" && message.Info == "Inform Invalid Name")
{
RaiseNewTextEvent("Container name refused by server.\r\n");
}
else if (message.Info == "Request Move Agent")
{
AgentHasArrived(message.Content);
}
else if (message.Sender == "Server" && message.Info == "Inform Containers")
{
string[] toks = message.Content.Split();
_allContainers.Clear();
foreach (string t in toks)
{
if (t != "" && t != " ")
{
_allContainers.Add(t);
}
}
}
}
private void Send(ClientInfo client, ContainerMessage message)
{
try
{
RaiseNewTextEvent($"Sending message [{message.Format()}]");
string s = ContainerMessage.Serialize(message);
byte[] buffer = ASCIIEncoding.Unicode.GetBytes(s);
var m = new BasicMessage(_serverGuid, buffer);
client.TcpSocketClientHandler.SendAsync(m);
}
catch (SocketException se)
{
// "An existing connection was forcibly closed by the remote host"
RaiseNewTextEvent($"Container {_containerNames[client]} is disconnected.");
_containerNames.Remove(client);
client.TcpSocketClientHandler.Close();
RaiseNewTextEvent($"Exception in Server.Send: {se.Message}.");
}
catch (Exception ex)
{
RaiseNewTextEvent($"Exception in Server.Send: {ex.Message}.");
}
}
private void ProcessMessage(ContainerMessage message)
{
RaiseNewTextEvent($"Message received [{message.Format()}]");
if (message.Sender == "Server" && message.Info == "Inform Invalid Name")
{
RaiseNewTextEvent("Container name refused by server.\r\n");
}
else if (message.Sender == "Server" && message.Info == "Inform Containers")
{
string[] toks = message.Content.Split();
_allContainers.Clear();
foreach (string t in toks)
{
if (t != "" && t != " ")
{
_allContainers.Add(t);
}
}
}
else if (message.Info == "Request Move Agent")
{
AgentHasArrived(message.Content);
}
else if (message.Info == "Send LD Message")
{
LDMessageReceived(message.Content);
}
}
internal void SendLDAgentMessage(string receiverContainer, Message message)
{
message.Sender = $"{message.Sender}@{this.Name}";
string serializedMessage = ContainerMessage.Serialize(message);
var cm = new ContainerMessage(_name, receiverContainer, "Send LD Message", serializedMessage);
Send(cm);
}
private void Send(ContainerMessage message)
{
try
{
RaiseNewTextEvent($"Sending message [{message.Format()}]");
string s = ContainerMessage.Serialize(message);
byte[] buffer = ASCIIEncoding.Unicode.GetBytes(s);
var serializedMessage = new BasicMessage(_clientGuid, buffer);
_client.SendAsync(serializedMessage);
}
catch (Exception ex)
{
RaiseNewTextEvent(ex.Message);
}
}
private void client_ReceiveMessageEvent(AbstractTcpSocketClientHandler handler, AbstractMessage message)
{
try
{
var receivedMessage = (BasicMessage)message;
byte[] buffer = receivedMessage.GetBuffer();
string s = ASCIIEncoding.Unicode.GetString(buffer);
if (ContainerMessage.Deserialize(s) is ContainerMessage deserializedMessage)
{
ProcessMessage(deserializedMessage);
}
}
catch (Exception ex)
{
RaiseNewTextEvent(ex.Message);
}
}
private void _timer_Elapsed(object sender, ElapsedEventArgs e)
{
try
{
if (_server == null)
{
return;
}
ClientInfo[] clientList = _server.GetClientList();
if (clientList.Length != 0)
{
string containerListAsString = "";
foreach (string cn in _containerNames.Values.ToList())
{
if (cn.StartsWith("Unknown container")) // ignore container until it registers
{
continue;
}
containerListAsString += cn + " ";
}
foreach (ClientInfo ci in clientList)
{
if (_containerNames.ContainsKey(ci))
{
var m = new ContainerMessage("Server", _containerNames[ci], "Inform Containers", containerListAsString);
Send(ci, m);
}
}
DisplayContainerList();
}
}
catch (Exception ex)
{
RaiseNewTextEvent("Exception in Server.TimerElapsed: " + ex.Message + ".");
}
}
private void Send(ContainerMessage message)
{
try
{
string mc = message.Content;
if (mc.Length > 20)
{
mc = mc.Substring(0, 20) + "...";
}
RaiseNewTextEvent(string.Format("Sending message [{0} -> {1}: {2} # {3}]", message.Sender, message.Receiver, message.Info, mc));
string s = ContainerMessage.Serialize(message);
byte[] buffer = ASCIIEncoding.Unicode.GetBytes(s);
BasicMessage serializedMessage = new BasicMessage(_clientGuid, buffer);
_client.SendAsync(serializedMessage);
}
catch (Exception ex)
{
RaiseNewTextEvent(ex.Message);
}
}
private void server_ReceiveMessageEvent(AbstractTcpSocketClientHandler handler, AbstractMessage message)
{
try
{
BasicMessage receivedMessage = (BasicMessage)message;
byte[] buffer = receivedMessage.GetBuffer();
string s = System.Text.ASCIIEncoding.Unicode.GetString(buffer);
ClientInfo[] clientList = _server.GetClientList();
if (clientList.Length == 0)
{
return;
}
ClientInfo sender = null;
foreach (ClientInfo ci in clientList)
{
if (ci.TcpSocketClientHandler == handler)
{
sender = ci;
break;
}
}
var deserializedMessage = ContainerMessage.Deserialize(s) as ContainerMessage;
if (deserializedMessage != null)
{
ProcessMessage(deserializedMessage, sender);
}
}
catch (Exception ex)
{
RaiseNewTextEvent("Exception in Server.ReceiveMessageEvent: " + ex.Message + ".");
}
}
private void ProcessMessage(ContainerMessage message, ClientInfo sender)
{
if (message.Sender == "Server")
{
return;
}
string mc = message.Content;
if (mc.Length > 20)
{
mc = mc.Substring(0, 20) + "...";
}
RaiseNewTextEvent(string.Format("Message received [{0} -> {1}: {2} # {3}]", message.Sender, message.Receiver, message.Info, mc));
if (message.Receiver != "Server" && message.Info == "Request Move Agent")
{
RaiseNewTextEvent(string.Format("Moving agent from {0} to {1}", message.Sender, message.Receiver));
}
if (message.Receiver == "Server" && message.Info == "Request Register")
{
bool exists = false;
foreach (string s in _containerNames.Values)
{
if (s == message.Sender)
{
exists = true;
break;
}
}
if (exists)
{
var m = new ContainerMessage("Server", message.Sender, "Inform Invalid Name", "");
Send(sender, m);
sender.TcpSocketClientHandler.Close();
}
else
{
_containerNames[sender] = message.Sender;
DisplayContainerList();
}
}
else if (message.Info == "Request Move Agent")
{
foreach (string s in _containerNames.Values)
{
if (s == message.Sender)
{
ClientInfo[] clientList = _server.GetClientList();
if (clientList.Length == 0)
{
return;
}
foreach (ClientInfo ci in clientList)
{
if (_containerNames.ContainsKey(ci) && _containerNames[ci] == message.Receiver)
{
Send(ci, message);
}
}
}
}
}
}
private void Register()
{
var message = new ContainerMessage(_name, "Server", "Request Register", "");
Send(message);
}
internal void AgentHasArrived(string agentState)
{
AgentState state = ContainerMessage.Deserialize(agentState) as AgentState;
_environment.AgentHasArrived(state);
}
internal void LDMessageReceived(string content)
{
var message = ContainerMessage.Deserialize(content) as Message;
_environment.LDMessageReceived(message);
}
