private void UnsubsribeComponent(string ComponentName)
{
ComponentName = ComponentName.ToUpper();
if (this.CNDTable.ContainsComponentRegistry(ComponentName))
{
CNDAddressingReg reg = this.CNDTable.GetCNDAddressingRegister(ComponentName);
this.CNDTable.RemoveComponentRegistry(ComponentName);
this._remoteComponentLinkTable.DestroyLinkWithRemoteComponent(ComponentName);
this.SaveCNDTable();
this.BroadCastRegistryRemoval(reg);
try
{
if (CNDTableStatusChangedEvent != null)
{
CNDTableStatusChangedEvent();
}
}
catch (Exception)
{
}
}
}
private void SubscribeComponent(string ComponentName, string HostName, string ipAdress, int P2PPortNumber, string AppName, string ProcessID)
{
//'creates a new registration and adds to the directory
//Dim newReg As CNDAddressingReg = New CNDAddressingReg(ComponentName, HostName, ipAdress, listeningTCPPort, AppName, ProcessID, Now)
ComponentName = ComponentName.ToUpper();
if (this.CNDTable.ContainsComponentRegistry(ComponentName))
{
this.UnsubsribeComponent(ComponentName);
}
this.CNDTable.AddComponentRegistry(ComponentName, HostName, ipAdress, P2PPortNumber, AppName, ProcessID);
CNDAddressingReg reg = this.CNDTable.GetCNDAddressingRegister(ComponentName);
this._remoteComponentLinkTable.CreateLinkWithRemoteComponent(reg);
this.SaveCNDTable();
this.BroadCastNewRegistryInsertion(reg);
try
{
if (CNDTableStatusChangedEvent != null)
{
CNDTableStatusChangedEvent();
}
}
catch (Exception)
{
}
}
private void BroadCastRegistryRemoval(CNDAddressingReg CNDTableReg)
{
SocketData dsReg = new SocketData(CNDServiceDefinitions.CND_EXISTING_REGISTRATION_REMOVE, CNDServiceDefinitions.CND_EXISTING_REGISTRATION_REMOVE);
dsReg.AttributesTable.AddAttribute(CNDServiceDefinitions.COMPONENT_NAME, CNDTableReg.ComponentName);
byte[] compressedData = null;
compressedData = UtilitiesLibrary.Services.DataCompression.DataCompressionUtilities.CompressData(dsReg.DataBytes);
this._MultiCastDataReplicationServer.BroadCastData(compressedData);
}
internal void DestroyLinkWithRemoteComponent(CNDAddressingReg addressingReg)
{
if (this._remoteComponentLinkTable.ContainsKey(addressingReg.ComponentName))
{
P2PPortClient client = (P2PPortClient)this._remoteComponentLinkTable[addressingReg.ComponentName];
this._remoteComponentLinkTable.Remove(addressingReg.ComponentName);
client.ConnectionLost -= P2PPortClient_ConnectionLost;
client.Disconnect();
client.Dispose();
}
}
internal static CNDAddressingReg GetAddressingRegister(CustomHashTable table)
{
if (!table.Contains(CNDServiceDefinitions.CND_TABLE_COMPONENT_NAME))
{
throw (new Exception("Can\'t get a CNDAddressingReg from Table because the parameter \'[Component Name]\' is missing."));
}
if (!table.Contains(CNDServiceDefinitions.CND_TABLE_HOST_NAME))
{
throw (new Exception("Can\'t get a CNDAddressingReg from Table because the parameter \'[Hostname]\' is missing."));
}
if (!table.Contains(CNDServiceDefinitions.CND_TABLE_P2P_PORT_NUMBER))
{
throw (new Exception("Can\'t get a CNDAddressingReg from Table because the parameter \'[P2PPortNumber]\' is missing."));
}
if (!table.Contains(CNDServiceDefinitions.CND_TABLE_IP_ADDRESS))
{
throw (new Exception("Can\'t get a CNDAddressingReg from Table because the parameter \'[IPAddress]\' is missing."));
}
if (!table.Contains(CNDServiceDefinitions.CND_TABLE_APPLICATION_NAME))
{
throw (new Exception("Can\'t get a CNDAddressingReg from Table because the parameter \'[Application Name]\' is missing."));
}
if (!table.Contains(CNDServiceDefinitions.CND_TABLE_APPLICATION_PROCESS_ID))
{
throw (new Exception("Can\'t get a CNDAddressingReg from Table because the parameter \'[Application Process ID]\' is missing."));
}
if (!table.Contains(CNDServiceDefinitions.CND_TABLE_REGISTRATION_DATETIME))
{
throw (new Exception("Can\'t get a CNDAddressingReg from Table because the parameter \'[Registration Date Time]\' is missing."));
}
string compName = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_COMPONENT_NAME));
compName = compName.ToUpper();
string hostName = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_HOST_NAME));
string P2PPortNumber = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_P2P_PORT_NUMBER));
string IPAddress = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_IP_ADDRESS));
string ApplicationName = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_APPLICATION_NAME));
string ApplicationProcessID = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_APPLICATION_PROCESS_ID));
string RegistrationDateTime = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_REGISTRATION_DATETIME));
int PortNumber = Convert.ToInt32(P2PPortNumber);
CNDAddressingReg reg = new CNDAddressingReg(compName, hostName, IPAddress, PortNumber, ApplicationName, ApplicationProcessID, RegistrationDateTime);
return(reg);
}
private RemoteComponentComunicationsHandler GetRemoteHandlerForComponent(string RemoteComponentName)
{
try
{
CNDAddressingReg reg = default(CNDAddressingReg);
reg = this._CNDClient.ResolveAddress(RemoteComponentName);
RemoteComponentComunicationsHandler handler = new RemoteComponentComunicationsHandler(RemoteComponentName, reg.HostName, reg.IPAddress, reg.P2PPortNumber);
return(handler);
}
catch (Exception ex)
{
throw (new Exception("Unable to send data to component name \'" + RemoteComponentName + "\' becuase it is not posible to resolve its network location. Error: " + ex.Message));
}
}
private void BroadCastNewRegistryInsertion(CNDAddressingReg CNDTableReg)
{
SocketData dsReg = new SocketData(CNDServiceDefinitions.CND_NEW_REGISTRATION_INSERT, CNDServiceDefinitions.CND_NEW_REGISTRATION_INSERT);
dsReg.AttributesTable.AddAttribute(CNDServiceDefinitions.COMPONENT_NAME, CNDTableReg.ComponentName);
dsReg.AttributesTable.AddAttribute(CNDServiceDefinitions.HOST_NAME, CNDTableReg.HostName);
dsReg.AttributesTable.AddAttribute(CNDServiceDefinitions.P2P_PORT_NUMBER, System.Convert.ToString(CNDTableReg.P2PPortNumber));
dsReg.AttributesTable.AddAttribute(CNDServiceDefinitions.IP_ADDRESS, CNDTableReg.IPAddress);
dsReg.AttributesTable.AddAttribute(CNDServiceDefinitions.APPLICATION_NAME, CNDTableReg.AppDomain);
dsReg.AttributesTable.AddAttribute(CNDServiceDefinitions.APPLICATION_PROCESS_ID, System.Convert.ToString(CNDTableReg.ProcessID));
dsReg.AttributesTable.AddAttribute(CNDServiceDefinitions.REGISTRATION_DATETIME, CNDTableReg.SubscriptionDateTime);
byte[] compressedData = null;
compressedData = UtilitiesLibrary.Services.DataCompression.DataCompressionUtilities.CompressData(dsReg.DataBytes);
this._MultiCastDataReplicationServer.BroadCastData(compressedData);
}
private void NewComponentRegistrationDetected(CNDAddressingReg ComponentCNDRegister)
{
try
{
//when a remote component is registred in the CNDService then is detected and is creted locally
// a handler to communicate with it
RemoteComponentComunicationsHandler newhandler = this.GetRemoteHandlerForComponent(ComponentCNDRegister.ComponentName);
this._remoteHandlersContainer.AddNewHandler(newhandler);
if (CNDTableChangedEvent != null)
{
CNDTableChangedEvent(this.CNDTable);
}
}
catch (Exception ex)
{
CustomEventLog.WriteEntry(ex);
}
}
private void ComponentUnregistrationDetected(CNDAddressingReg ComponentCNDRegister)
{
try
{
if (this._remoteHandlersContainer.ContainsHandlerForRemoteComponent(ComponentCNDRegister.ComponentName))
{
RemoteComponentComunicationsHandler handler = default(RemoteComponentComunicationsHandler);
handler = this._remoteHandlersContainer.GetHandler(ComponentCNDRegister.ComponentName);
this._remoteHandlersContainer.RemoveExistingHandler(handler);
if (CNDTableChangedEvent != null)
{
CNDTableChangedEvent(this.CNDTable);
}
}
}
catch (Exception ex)
{
CustomEventLog.WriteEntry(ex);
}
}
internal void CreateLinkWithRemoteComponent(CNDAddressingReg addressingReg)
{
if (this.ContainsLinkToRemoteComponent(addressingReg))
{
//removes the old link
this.DestroyLinkWithRemoteComponent(addressingReg);
}
//creates a remote P2PPortClient in order to create a link with the remote component and know when it
//shutdows thorugh the port client event that detects the disconnection
Services.P2PCommunicationsScheme.P2PPortClient _remotePortClientLink = new Services.P2PCommunicationsScheme.P2PPortClient(addressingReg.HostName, addressingReg.IPAddress, addressingReg.P2PPortNumber, addressingReg.ComponentName);
try
{
_remotePortClientLink.Connect();
_remotePortClientLink.ConnectionLost += P2PPortClient_ConnectionLost;
this._remoteComponentLinkTable.Add(addressingReg.ComponentName, _remotePortClientLink);
}
catch (Exception ex)
{
throw (new Exception("Error creating a link to remote component: " + ex.Message));
}
}
internal CNDAddressingReg GetCNDAddressingRegister(string ComponentName)
{
UtilitiesLibrary.Data.CustomHashTable table = default(UtilitiesLibrary.Data.CustomHashTable);
table = this.GetComponentRegistry(ComponentName);
if (!(table == null))
{
string compName = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_COMPONENT_NAME));
compName = compName.ToUpper();
string hostName = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_HOST_NAME));
string P2PPortNumber = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_P2P_PORT_NUMBER));
string IPAddress = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_IP_ADDRESS));
string ApplicationName = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_APPLICATION_NAME));
string ApplicationProcessID = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_APPLICATION_PROCESS_ID));
string RegistrationDateTime = System.Convert.ToString(table.Item(CNDServiceDefinitions.CND_TABLE_REGISTRATION_DATETIME));
int portNumber = Convert.ToInt32(P2PPortNumber);
CNDAddressingReg reg = new CNDAddressingReg(ComponentName, hostName, IPAddress, portNumber, ApplicationName, ApplicationProcessID, RegistrationDateTime);
return(reg);
}
else
{
return(null);
}
}
internal bool ContainsLinkToRemoteComponent(CNDAddressingReg addressingReg)
{
return(this._remoteComponentLinkTable.ContainsKey(addressingReg.ComponentName));
}
