/// <summary>
/// Adds the row.
/// </summary>
/// <param name="credential">The credential.</param>
/// <param name="server">The server.</param>
/// <returns>ServersTableRow.</returns>
public ServersTableRow AddRow(ConnectData credential, Opc.Da.Server server)
{
ServersTableRow mRow = this.NewServersTableRow();
mRow.LicenseKey = credential.LicenseKey;
if (credential.Credentials != null)
{
mRow.Domain = credential.Credentials.Domain;
mRow.Password = credential.Credentials.Password;
mRow.UserName = credential.Credentials.UserName;
}
ServerStatus status = server.GetStatus();
mRow.CurrentTime = status.CurrentTime;
mRow.ProductVersion = status.ProductVersion;
mRow.SpecificationDescription = server.PreferedSpecyfication.Description;
mRow.SpecificationID = server.PreferedSpecyfication.ID;
mRow.URLString = server.Url.ToString();
mRow.VendorInfo = status.VendorInfo;
this.AddServersTableRow(mRow);
foreach (var loc in server.SupportedLocales)
{
((AddressSpaceDataBase)this.DataSet).LocalesTable.AddRow(mRow.ID, loc);
}
return(mRow);
}
private Connection CreateConnection(string serverUrl)
{
ServiceManager.LogMessage("Connecting to {0}...", serverUrl);
URL url = new URL(serverUrl);
Opc.Da.Server server = null;
try
{
server = new Opc.Da.Server(new OpcCom.Factory(), url);
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
try
{
server.Connect();
Opc.Da.ServerStatus serverStatus = server.GetStatus();
if (serverStatus.ServerState != Opc.Da.serverState.running)
{
throw new Exception(String.Format("Bad server state ({0})", serverStatus.ServerState));
}
Connection connection = new Connection(serverUrl, server);
server = null;
stopwatch.Stop();
ServiceManager.LogMessage("Successful created new connection {0}: {1} ({2} ms)",
connection.GetUID(), serverUrl, stopwatch.ElapsedMilliseconds);
Counter counter = counters[serverUrl];
Interlocked.Increment(ref counter.numConnections);
return(connection);
}
catch (Exception ex)
{
stopwatch.Stop();
ServiceManager.LogMessage("Failed create new connection to {0}: {1} ({2} ms)",
serverUrl, ex.Message, stopwatch.ElapsedMilliseconds);
throw new FaultException(ex.Message, new FaultCode("E_FAIL"));
}
}
finally
{
if (server != null)
{
if (server.IsConnected)
{
server.Disconnect();
}
server.Dispose();
}
}
}
void ReadMeasurement(PolledMeasurement measurement)
{
var item = new OpcDa.Item {
ItemName = measurement.Path
};
if (l_server == null || l_server.GetStatus().ServerState != OpcDa.serverState.running)
{
l_logger.ErrorFormat(string.Format("Server not connected. Cannot read path {0}.", measurement.Name));
throw new Exception(string.Format("Server not connected. Cannot read path {0}.", measurement.Name));
}
var result = l_server.Read(new[] { item })[0];
if (result == null)
{
l_logger.Error("the server replied with an empty response!!!");
throw new Exception("the server replied with an empty response");//if any item cannot read, throw exeption
}
if (result.ResultID.ToString() != "S_OK")
{
l_logger.ErrorFormat(string.Format("Invalid response from the server. (Response Status: {0}, Opc Tag: {1})", result.ResultID, measurement.Path));
throw new Exception(string.Format("Invalid response from the server. (Response Status: {0}, Opc Tag: {1})", result.ResultID, measurement.Path));
}
OpcMetric metric = new OpcMetric()
{
Measurement = measurement,
Opcstatus = result.ResultID.ToString(),
OpcValue = result.Value,
Timestamp = result.Timestamp
};
if (OpcHelper.QualifyMetric(ref metric, l_cache))
{
l_cache[metric.Measurement.Name] = metric.OpcValue;
l_metricCollection.Add(metric);
}
}
public override bool Initialize(string connectionString, int newPollerId)
{
bool result = false;
ConnString = connectionString;
try
{
PollerId = newPollerId;
url = new Opc.URL(connectionString);
server = null;
var fact = new OpcCom.Factory();
server = new Opc.Da.Server(fact, null);
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
server.ServerShutdown += Shutdown;
_tags = new List <Opc.Da.Item>();
Browse();
_groupWriteState = new Opc.Da.SubscriptionState();
_groupWriteState.Name = "GroupWrite";
_groupWriteState.Active = false;
groupWrite = (Opc.Da.Subscription)server.CreateSubscription(_groupWriteState);
Activated = true;
logger.Logged("Info", "Состояние сервера: " + server.GetStatus().StatusInfo, "", "");
result = true;
}
catch (Exception ex)
{
logger.Logged("Error", "Не удалось подключиться к OPC DA серверу " + connectionString + ": " + ex.Message, "", "");
// logger.Logged("Warn", "Повторная попытка через 5 секунд...", "", "");
//Thread.Sleep(5000);
}
return(result);
}
private void Timer1OnTick(object sender, EventArgs e)
{
DisplayPanelWatch.Text = DateTime.Now.ToShortTimeString();
DisplayPanelWatch.ForeColor = Color.Black;
DisplayPanelWatch.Visible = true;
DisplayPanelWatch.Font = new Font("Segoe UI Symbo", 12F, FontStyle.Regular);
try
{
_server.GetStatus();
DisplayPanelServerError.Text = string.Empty;
if (!Trends.Visible)
{
DisplayPanelWatch.Visible = true;
Trends.Visible = true;
//Toolbar.Visible = true;
DisplayPanel.Visible = Status;
DisplayPanelServerError.Visible = false;
_status = true;
}
if (_repConnectionWorker.IsBusy)
{
_repConnectionWorker.CancelAsync();
}
}
catch (Exception)
{
CheckTheConnectionStatus();
_status = false;
if (Trends.Visible)
{
Trends.Visible = false;
//Toolbar.Visible = false;
DisplayPanel.Visible = Status;
DisplayPanelServerError.Visible = false;
DisplayPanelWatch.Visible = false;
}
}
try
{
if (_status)
{
//Toolbar.Visible = true;
Trends.Visible = true;
DisplayPanel.Visible = Status;
OffConnectionDisplayPanelIndicator.Visible = false;
OnConnectionDisplayPanelIndicator.Visible = true;
OnConnectionDisplayPanelIndicator.ForeColor = Color.Black;
OnConnectionDisplayPanelIndicator.Font = new Font("Segoe UI Symbo", 12F, FontStyle.Regular);
DisplayPanelServerError.Visible = false;
DisplayPanelServerError.Text = string.Empty;
}
else
{
OffConnectionDisplayPanelIndicator.Visible = true;
DisplayPanelServerError.Visible = true;
OnConnectionDisplayPanelIndicator.Visible = false;
DisplayPanelServerError.Font = new Font("Segoe UI Symbo", 12F, FontStyle.Regular);
OffConnectionDisplayPanelIndicator.Font = new Font("Segoe UI Symbo", 12F, FontStyle.Regular);
DisplayPanelServerError.Text = @"| Ошибка соединения: Идет попытка востановления соединения, пожалуйста подождите";
DisplayPanel.ForeColor = Color.PaleVioletRed;
OffConnectionDisplayPanelIndicator.ForeColor = Color.PaleVioletRed;
}
}
catch (Exception)
{
}
}
public void Ping()
{
localId = server.GetLocale();
supportedLocales = server.GetSupportedLocales();
status = server.GetStatus();
}
