private void ClientConnectionFinishCDB(SocketsServer server, SocketsServerClientConnectionHandler ClientHandler)
{
this._STXDSS_PublicationClientConnectionsManager.UnlogPendingSocketClientMatchConnectionWithSTXDSSClientTable(ClientHandler);
DPE_Client client = default(DPE_Client);
client = this._STXDSS_PublicationClientConnectionsManager.GetSubscriptorClient(ClientHandler);
if (!(client == null))
{
try
{
this._STXDSS_PublicationClientConnectionsManager.RemoveClientSubscription(ClientHandler);
}
catch (Exception)
{
}
try
{
if (SubscriptionDeattachmentEvent != null)
{
SubscriptionDeattachmentEvent(this, client);
}
}
catch (Exception)
{
}
}
}
public DPE_Publication(string publicationsDataBAseConnectionString, string publicationsGroup, string publicationName, DPE_Client STXDSSClient)
{
//sets the publication name
this._publicationsGroup = publicationsGroup.ToUpper();
this._publicationName = publicationName.ToUpper();
this._publicationCreation = DateTime.Now;
this._variablesPublishedRegistry = new DPE_PublishedVariablesRegistry(publicationName);
//saves reference to the datra socket server that creates the publication
this._publisherSTXDSSClient = STXDSSClient;
//creates a sockets server to support the link between the client and the publication
this._publicationSocketsServer = new SocketsServer(DPE_ServerDefs.INITIAL_TCP_PORT_DPE_SERVICE, DPE_ServerDefs.FINAL_TCP_PORT_DPE_SERVICE);
this._publicationSocketsServer.NewClientConnection += this.NewIncommingConnectionCDB;
this._publicationSocketsServer.ClientConnectionFinished += this.ClientConnectionFinishCDB;
this._STXDSS_PublicationClientConnectionsManager = new DPE_PublicationClientConnectionsManager(this);
this._updatePublicationOnClientConnectionQueue = new Queue();
this._publicationsDataBaseConnectionString = publicationsDataBAseConnectionString;
//**************************************************************************************************
//creates the publication in the data base according with the connection string passed by attribute
CreatePublicationDataTable(this._publicationsDataBaseConnectionString, this._publicationName);
CustomEventLog.WriteEntry(EventLogEntryType.SuccessAudit, "Publication \'" + this._publicationName + "\' -> CREATED succesfully");
}
private bool disposedValue = false; // To detect redundant calls
// IDisposable
protected virtual void Dispose(bool disposing)
{
if (!this.disposedValue)
{
if (disposing)
{
// TODO: free other state (managed objects).
lock (this._serversTable)
{
IEnumerator enumm = this._serversTable.GetEnumerator();
SocketsServer server = null;
while (enumm.MoveNext())
{
server = (SocketsServer)(((DictionaryEntry)enumm.Current).Value);
server.Dispose();
}
}
}
// TODO: free your own state (unmanaged objects).
// TODO: set large fields to null.
}
this.disposedValue = true;
}
private void DisposeServer(SocketsServer server)
{
if (!(server == null))
{
if (this._serversTable.ContainsKey(server.ServerID))
{
server.ClientDataReceived -= eventHandling_ClientDataReceived;
server.NewClientConnection -= eventHandling_NewClientConnection;
server.ClientConnectionFinished -= eventHandling_ClientConnectionFinished;
lock (this._serversTable)
{
this._serversTable.Remove(server.ServerID);
this._serversStack.RemoveServerFromStack(server);
}
try
{
if (ServerDisposedEvent != null)
{
ServerDisposedEvent(server);
}
}
catch (Exception)
{
}
server.Dispose();
}
}
}
internal void LogClientDisconnectionFromPublication(DPE_DataPublicationsClient stxdssClient, string PublicationName)
{
try
{
this.UnLogClientForPublicationDataReception(stxdssClient, PublicationName);
int connectedClients = this.GetConnectedClientsToPublicationCount(PublicationName);
if (connectedClients <= 0)
{
//removes all the handles to receive data for this publication because nobody will be use it
//removes the multicast clientss if exists
MultiCastDataReplicatorClient publicationMultiCastClient = default(MultiCastDataReplicatorClient);
publicationMultiCastClient = (MultiCastDataReplicatorClient)this._MultiCastDataReplicatorClientsTable[PublicationName];
if (!(publicationMultiCastClient == null))
{
publicationMultiCastClient.Dispose();
}
this._MultiCastDataReplicatorKeyStringsTable.Remove(PublicationName);
this._MultiCastDataReplicatorClientsTable.Remove(PublicationName);
SocketsServer listener = default(SocketsServer);
listener = (SocketsServer)this._SocketServersListenersTable[PublicationName];
if (!(listener == null))
{
listener.Dispose();
}
this._SocketServersListenersTable.Remove(PublicationName);
}
}
catch (Exception)
{
}
}
public void eventHandling_ClientConnectionFinished(SocketsServer server, SocketsServerClientConnectionHandler ClientHandler)
{
// a client is disconnected from one of the servers so then is pushed into the stack to make it available
//for the next request for a server available wiht room for connections
try
{
if (server.ClientConnectionsCount < this._maxNumberOfClientsPerServer)
{
if (server.ClientConnectionsCount > 0)
{
this._serversStack.Push(server);
}
else
{
if (this._discardServersWhenThereWerentClientsConnected)
{
this.DisposeServer(server);
}
}
}
}
catch (Exception)
{
}
}
public void Push(SocketsServer server)
{
//adds a server to the end of the stack
lock (this._serversTable)
{
int index = this._serversTable.Count + 1;
this._serversTable.Add(index, server);
}
}
public SocketsServer Peek()
{
SocketsServer server = default(SocketsServer);
lock (this._serversTable)
{
int index = this._serversTable.Count;
server = (SocketsServer)this._serversTable[index];
}
return(server);
}
private void eventHandling_ClientDataReceived(SocketsServer server, SocketsServerClientConnectionHandler ClientHandler, SocketData data)
{
try
{
if (DataReceivedFromClientEvent != null)
{
DataReceivedFromClientEvent(server, ClientHandler, data);
}
}
catch (Exception)
{
}
}
private void ClientConnectionFinished(SocketsServer server, SocketsServerClientConnectionHandler ClientHandler)
{
try
{
string msg = DateTime.Now.ToString() + " -> " + ClientHandler.IdentityString;
this.SetListBoxItem(this.lstOutgoingConnections, msg);
this.RemoveListBoxItem(this.lstConnectedClients, ClientHandler);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public void RemoveServerFromStack(SocketsServer server)
{
lock (this._serversTable)
{
//removes all the references of the server on the sorted list
IEnumerator enumm = this._serversTable.GetEnumerator();
int index = 0;
SocketsServer localServerOnTable = null;
Collection colOfIndexToDeleteFromTable = new Collection();
while (enumm.MoveNext())
{
index = System.Convert.ToInt32(((DictionaryEntry)enumm.Current).Key);
localServerOnTable = (SocketsServer)(((DictionaryEntry)enumm.Current).Value);
if (localServerOnTable.ServerID == server.ServerID)
{
colOfIndexToDeleteFromTable.Add(index, null, null, null);
}
}
//remves the elements from the list
enumm = colOfIndexToDeleteFromTable.GetEnumerator();
while (enumm.MoveNext())
{
index = System.Convert.ToInt32(enumm.Current);
this._serversTable.Remove(index);
}
//copies all the elements left into a new colllection
SortedList copyOfServersList = new SortedList();
int newIndex = 1;
enumm = this._serversTable.GetEnumerator();
while (enumm.MoveNext())
{
localServerOnTable = (SocketsServer)(((DictionaryEntry)enumm.Current).Value);
copyOfServersList.Add(newIndex, localServerOnTable);
newIndex++;
}
this._serversTable.Clear();
enumm = copyOfServersList.GetEnumerator();
while (enumm.MoveNext())
{
localServerOnTable = (SocketsServer)(((DictionaryEntry)enumm.Current).Value);
this.Push(localServerOnTable);
}
}
}
public SocketsServerMultiplexingManager(int initialServerPortsNumberRange, int finalServerPortsNumberRange, int maxNumberOfClientsPerServer, bool DiscardServersWhenThereWerentClientsConnected)
{
this._serversTable = new Hashtable();
this._serversStack = new SocketsServersStack();
this._initialServerPortsNumberRange = initialServerPortsNumberRange;
this._finalServerPortsNumberRange = finalServerPortsNumberRange;
this._maxNumberOfClientsPerServer = maxNumberOfClientsPerServer;
//sets and initial server and push into the stack to be retrieved
SocketsServer initialServer = this.CreateAndStackServer();
this._discardServersWhenThereWerentClientsConnected = DiscardServersWhenThereWerentClientsConnected;
}
internal CommunicationsLibrary.Services.SocketsDataDistribution.SocketsServer GetPublicationSocketsServerListener(DPE_DataPublicationsClient client, string PublicationName)
{
if (this._SocketServersListenersTable.ContainsKey(PublicationName))
{
SocketsServer listener = default(SocketsServer);
listener = (SocketsServer)this._SocketServersListenersTable[PublicationName];
this.LogClientForPublicationDataReception(client, PublicationName);
return(listener);
}
else
{
SocketsServer listener = new SocketsServer(DPE_ServerDefs.INITIAL_TCP_PORT_DPE_SERVICE, DPE_ServerDefs.FINAL_TCP_PORT_DPE_SERVICE);
this._SocketServersListenersTable.Add(PublicationName, listener);
this.LogClientForPublicationDataReception(client, PublicationName);
return(listener);
}
}
public SocketsServer GetCurrentAvailableServer()
{
SocketsServer currentServerAvailable = null;
bool serverFound = false;
lock (this._serversStack)
{
while (this._serversStack.Count > 0)
{
//gets the server on the stack top without removing it
currentServerAvailable = this._serversStack.Peek();
if (!(currentServerAvailable == null))
{
if (currentServerAvailable.ClientConnectionsCount < this._maxNumberOfClientsPerServer)
{
//the current server on the stack has no more room available , so then is created a new
//server to receive data
serverFound = true;
break;
}
else
{
//if the server in the stack has no more room for the maximun number of connections
//allowed for the server then is removed from the stack
this._serversStack.Pop();
serverFound = false;
}
}
else
{
//if the referece is invalid
this._serversStack.Pop();
serverFound = false;
}
}
}
//by the end of the lookin up if the flag 'server found' is false means there where no server with availabel space
if (!serverFound)
{
currentServerAvailable = this.CreateAndStackServer();
}
return(currentServerAvailable);
}
private SocketsServer CreateAndStackServer()
{
SocketsServer newSServer = default(SocketsServer);
lock (this._serversTable)
{
newSServer = new SocketsServer(this._initialServerPortsNumberRange, this._finalServerPortsNumberRange);
this._serversTable.Add(newSServer.ServerID, newSServer);
newSServer.ClientDataReceived += eventHandling_ClientDataReceived;
newSServer.NewClientConnection += eventHandling_NewClientConnection;
newSServer.ClientConnectionFinished += eventHandling_ClientConnectionFinished;
}
this._serversStack.Push(newSServer);
return(newSServer);
}
private void ClientDataReceived(SocketsServer server, SocketsServerClientConnectionHandler ClientHandler, SocketData data)
{
try
{
this._dataReceptionCount++;
this.SetTextBoxText(this.txtDataReceivedCount, System.Convert.ToString(this._dataReceptionCount));
this.ListBox_Items_Clear(this.lstDataAttributes);
if (this.chkPutIncommingDataIntoList.Checked)
{
string msg = "[FROM=" + ClientHandler.IdentityString + "]->[DATA LENGTH = " + System.Convert.ToString(data.DataLenght) + "][DATANAME= " + data.DataName + "][DATA = " + data.XMLDataString + "]";
this.SetListBoxItem(this.lstBoxDataReceived, data);
}
if (this.chkBroadCastReceivedData.Checked)
{
server.BroadCastData(data);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private ALDSDataServer()
{
this._DataSocketServer = new SocketsServer(ALDS_DATA_SERVER_PORT);
}
static void Main(string[] args)
{
int port = 8000;
SocketsServer server = new SocketsServer(port, new CalculatorService());
server.StartServing();
Console.WriteLine("Started the simple server");
CustomBinding binding = new CustomBinding(new SizedTcpTransportBindingElement());
EndpointAddress address = new EndpointAddress(
SizedTcpTransportBindingElement.SizedTcpScheme + "://localhost:" + port);
ChannelFactory <IUntypedTest> factory = new ChannelFactory <IUntypedTest>(binding, address);
IUntypedTest proxy = factory.CreateChannel();
string[] allInputs = new string[]
{
"{\"method\":\"Add\",\"params\":[5, 8],\"id\":1}",
"{\"method\":\"Multiply\",\"params\":[5, 8],\"id\":2}",
"{\"method\":\"Divide\",\"params\":[5, 0],\"id\":3}",
};
foreach (string input in allInputs)
{
byte[] inputBytes = Encoding.UTF8.GetBytes(input);
Console.WriteLine("Input: {0}", input);
Message inputMessage = Formatting.BytesToMessage(inputBytes);
Message outputMessage = proxy.Process(inputMessage);
Console.WriteLine("Received output: {0}", outputMessage);
byte[] outputBytes = Formatting.MessageToBytes(outputMessage);
Console.WriteLine("Output bytes:");
Debugging.PrintBytes(outputBytes);
}
((IClientChannel)proxy).Close();
factory.Close();
Console.WriteLine();
Console.WriteLine("Now using the typed interface");
ChannelFactory <ITypedTest> typedFactory = new ChannelFactory <ITypedTest>(binding, address);
typedFactory.Endpoint.Behaviors.Add(new JsonRpcEndpointBehavior());
ITypedTest typedProxy = typedFactory.CreateChannel();
Console.WriteLine("Calling Add");
int result = typedProxy.Add(5, 8);
Console.WriteLine(" ==> Result: {0}", result);
Console.WriteLine();
Console.WriteLine("Calling Multiply");
result = typedProxy.Multiply(5, 8);
Console.WriteLine(" ==> Result: {0}", result);
Console.WriteLine();
Console.WriteLine("Calling Divide (throws)");
try
{
result = typedProxy.Divide(5, 0);
Console.WriteLine(" ==> Result: {0}", result);
}
catch (JsonRpcException e)
{
Console.WriteLine("Error: {0}", e.JsonException);
}
Console.WriteLine();
Console.WriteLine("Now using the typed asynchronous interface");
var asyncTypedFactory = new ChannelFactory <ITypedTestAsync>(binding, address);
asyncTypedFactory.Endpoint.Behaviors.Add(new JsonRpcEndpointBehavior());
ITypedTestAsync asyncTypedProxy = asyncTypedFactory.CreateChannel();
AutoResetEvent evt = new AutoResetEvent(false);
Console.WriteLine("Calling BeginAdd");
asyncTypedProxy.BeginAdd(5, 8, delegate(IAsyncResult ar)
{
result = asyncTypedProxy.EndAdd(ar);
Console.WriteLine(" ==> Result: {0}", result);
Console.WriteLine();
evt.Set();
}, null);
evt.WaitOne();
Console.WriteLine("Calling BeginMultiply");
asyncTypedProxy.BeginMultiply(5, 8, delegate(IAsyncResult ar)
{
result = asyncTypedProxy.EndMultiply(ar);
Console.WriteLine(" ==> Result: {0}", result);
Console.WriteLine();
evt.Set();
}, null);
evt.WaitOne();
Console.WriteLine("Calling BeginDivide (throws)");
asyncTypedProxy.BeginDivide(5, 0, delegate(IAsyncResult ar)
{
try
{
result = asyncTypedProxy.EndDivide(ar);
Console.WriteLine(" ==> Result: {0}", result);
}
catch (JsonRpcException e)
{
Console.WriteLine("Error: {0}", e.JsonException);
}
Console.WriteLine();
evt.Set();
}, null);
evt.WaitOne();
}
