private static void OpcClient_BreakDetected(object sender, EventArgs e)
{
Console.WriteLine("BREAK DETECTED");
var logLevelMessage = new LogLevelMessage {
logLevel = LogLevelMessage.LogLevel.Warning, code = "01", message = "BREAK DETECTED"
};
SendLogLevelMessage(logLevelMessage).Wait();
}
private static void OpcClient_Disconnected(object sender, EventArgs e)
{
Console.WriteLine("DISCONNECTED");
var logLevelMessage = new LogLevelMessage {
logLevel = LogLevelMessage.LogLevel.Error, code = "02", message = "DISCONNECTED"
};
SendLogLevelMessage(logLevelMessage).Wait();
}
private static void OpcClient_Disconnecting(object sender, EventArgs e)
{
Console.WriteLine("DISCONNECTING");
var logLevelMessage = new LogLevelMessage {
logLevel = LogLevelMessage.LogLevel.Warning, code = "03", message = "DISCONNECTING"
};
SendLogLevelMessage(logLevelMessage).Wait();
}
private static void OpcClient_Reconnected(object sender, EventArgs e)
{
Console.WriteLine("RECONNECTED");
var logLevelMessage = new LogLevelMessage {
logLevel = LogLevelMessage.LogLevel.Warning, code = "04", message = "RECONNECTED"
};
SendLogLevelMessage(logLevelMessage).Wait();
}
private static void OpcClient_Reconnecting(object sender, EventArgs e)
{
Console.WriteLine("RECONNECTING");
var logLevelMessage = new LogLevelMessage {
logLevel = LogLevelMessage.LogLevel.Error, code = "05", message = "RECONNECTING"
};
SendLogLevelMessage(logLevelMessage).Wait();
}
private static async Task SendLogLevelMessage(LogLevelMessage moduleStateMessage)
{
if (moduleStateMessage.logLevel < MinimalLogLevel)
{
Console.WriteLine($"Error message {moduleStateMessage.code}- Level {moduleStateMessage.logLevel} ignored.");
return;
}
var jsonMessage = JsonConvert.SerializeObject(moduleStateMessage);
var messageBytes = Encoding.UTF8.GetBytes(jsonMessage);
using (var message = new Message(messageBytes))
{
message.ContentEncoding = "utf-8";
message.ContentType = "application/json";
message.Properties.Add("content-type", "application/opcua-error-json");
await ioTHubModuleClient.SendEventAsync("outputError", message);
}
}
private static async Task onDesiredPropertiesUpdate(TwinCollection desiredProperties, object userContext)
{
if (desiredProperties.Count == 0)
{
Console.WriteLine("Empty desired properties ignored.");
return;
}
try
{
Console.WriteLine("Desired property change:");
Console.WriteLine(JsonConvert.SerializeObject(desiredProperties));
var client = userContext as ModuleClient;
if (client == null)
{
throw new InvalidOperationException($"UserContext doesn't contain expected ModuleClient");
}
var reportedProperties = new TwinCollection();
if (desiredProperties.Contains("address"))
{
if (desiredProperties["address"] != null)
{
Address = desiredProperties["address"];
}
else
{
Address = DefaultAddress;
}
Console.WriteLine($"Address changed to {Address}");
reportedProperties["address"] = Address;
}
if (desiredProperties.Contains("nodePotentio1"))
{
if (desiredProperties["nodePotentio1"] != null)
{
NodePotentio1 = desiredProperties["nodePotentio1"];
}
else
{
NodePotentio1 = DefaultNodePotentio1;
}
Console.WriteLine($"NodePotentio1 changed to {NodePotentio1}");
reportedProperties["nodePotentio1"] = NodePotentio1;
}
if (desiredProperties.Contains("nodePotentio2"))
{
if (desiredProperties["nodePotentio2"] != null)
{
NodePotentio2 = desiredProperties["nodePotentio2"];
}
else
{
NodePotentio2 = DefaultNodePotentio2;
}
Console.WriteLine($"NodePotentio2 changed to {NodePotentio2}");
reportedProperties["nodePotentio2"] = NodePotentio2;
}
if (desiredProperties.Contains("nodeSwitch1"))
{
if (desiredProperties["nodeSwitch1"] != null)
{
NodeSwitch1 = desiredProperties["nodeSwitch1"];
}
else
{
NodeSwitch1 = DefaultNodeSwitch1;
}
Console.WriteLine($"NodeSwitch1 changed to {NodeSwitch1}");
reportedProperties["nodeSwitch1"] = NodeSwitch1;
}
if (desiredProperties.Contains("nodeSwitch2"))
{
if (desiredProperties["nodeSwitch2"] != null)
{
NodeSwitch2 = desiredProperties["nodeSwitch2"];
}
else
{
NodeSwitch2 = DefaultNodeSwitch2;
}
Console.WriteLine($"NodeSwitch2 changed to {NodeSwitch2}");
reportedProperties["nodeSwitch2"] = NodeSwitch2;
}
if (desiredProperties.Contains("nodeRelay1"))
{
if (desiredProperties["nodeRelay1"] != null)
{
NodeRelay1 = desiredProperties["nodeRelay1"];
}
else
{
NodeRelay1 = DefaultNodeRelay1;
}
Console.WriteLine($"NodeRelay1 changed to {NodeRelay1}");
reportedProperties["nodeRelay1"] = NodeRelay1;
}
if (desiredProperties.Contains("nodeRelay2"))
{
if (desiredProperties["nodeRelay2"] != null)
{
NodeRelay2 = desiredProperties["nodeRelay2"];
}
else
{
NodeRelay2 = DefaultNodeRelay2;
}
Console.WriteLine($"NodeRelay2 changed to {NodeRelay2}");
reportedProperties["nodeRelay2"] = NodeRelay2;
}
if (desiredProperties.Contains("licenseKey"))
{
if (desiredProperties["licenseKey"] != null)
{
LicenseKey = desiredProperties["licenseKey"];
}
else
{
LicenseKey = DefaultLicenseKey;
}
Console.WriteLine($"LicenseKey changed to {LicenseKey}");
reportedProperties["licenseKey"] = LicenseKey;
}
if (desiredProperties.Contains("minimalLogLevel"))
{
if (desiredProperties["minimalLogLevel"] != null)
{
var minimalLogLevel = desiredProperties["minimalLogLevel"];
// casting from int to enum needed
var minimalLogLevelInteger = Convert.ToInt32(minimalLogLevel);
MinimalLogLevel = (LogLevelMessage.LogLevel)minimalLogLevelInteger;
}
else
{
MinimalLogLevel = DefaultMinimalLogLevel;
}
Console.WriteLine($"MinimalLogLevel changed to '{MinimalLogLevel}'");
reportedProperties["minimalLogLevel"] = MinimalLogLevel;
}
else
{
Console.WriteLine($"MinimalLogLevel ignored");
}
if (reportedProperties.Count > 0)
{
await client.UpdateReportedPropertiesAsync(reportedProperties);
if (opcClient != null)
{
opcClient.Disconnect();
if (LicenseKey != string.Empty)
{
Opc.UaFx.Licenser.LicenseKey = LicenseKey;
}
else
{
Console.WriteLine("No license key available.");
Opc.UaFx.Licenser.LicenseKey = string.Empty;
}
opcClient.ServerAddress = new Uri(Address);
opcClient.Connect();
var commands = new List <OpcSubscribeDataChange>();
if (!string.IsNullOrEmpty(NodePotentio1))
{
commands.Add(new OpcSubscribeDataChange(NodePotentio1, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodePotentio1");
}
if (!string.IsNullOrEmpty(NodePotentio2))
{
commands.Add(new OpcSubscribeDataChange(NodePotentio2, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodePotentio2");
}
if (!string.IsNullOrEmpty(NodeSwitch1))
{
commands.Add(new OpcSubscribeDataChange(NodeSwitch1, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodeSwitch1");
}
if (!string.IsNullOrEmpty(NodeSwitch2))
{
commands.Add(new OpcSubscribeDataChange(NodeSwitch2, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodeSwitch2");
}
if (!string.IsNullOrEmpty(NodeRelay1))
{
commands.Add(new OpcSubscribeDataChange(NodeRelay1, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodeRelay1");
}
if (!string.IsNullOrEmpty(NodeRelay2))
{
commands.Add(new OpcSubscribeDataChange(NodeRelay2, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodeRelay2");
}
OpcSubscription subscription = opcClient.SubscribeNodes(commands);
Console.WriteLine($"Client started... (listening to '{NodePotentio1},{NodePotentio2},{NodeSwitch1},{NodeSwitch2},{NodeRelay1},{NodeRelay2}' at '{Address}')");
}
else
{
Console.WriteLine("Client construction postponed.");
}
Console.WriteLine("Changes to desired properties can be enforced by restarting the module.");
}
}
catch (AggregateException ex)
{
Console.WriteLine($"Desired properties change error: {ex.Message}");
var logLevelMessage = new LogLevelMessage {
logLevel = LogLevelMessage.LogLevel.Error, code = "98", message = $"Desired properties change error: {ex.Message}"
};
await SendLogLevelMessage(logLevelMessage);
foreach (Exception exception in ex.InnerExceptions)
{
Console.WriteLine($"Error when receiving desired properties: {exception}");
}
}
catch (Exception ex)
{
Console.WriteLine($"Error when receiving desired properties: {ex.Message}");
var logLevelMessage = new LogLevelMessage {
logLevel = LogLevelMessage.LogLevel.Error, code = "99", message = $"Error when receiving desired properties: {ex.Message}"
};
await SendLogLevelMessage(logLevelMessage);
}
}
private static void ThreadBody()
{
try
{
if (LicenseKey != string.Empty)
{
Opc.UaFx.Licenser.LicenseKey = LicenseKey;
}
else
{
Console.WriteLine("No license key available.");
Opc.UaFx.Licenser.LicenseKey = string.Empty;
}
opcClient = new OpcClient(Address);
opcClient.Connecting += OpcClient_Connecting;
opcClient.Connected += OpcClient_Connected;
opcClient.BreakDetected += OpcClient_BreakDetected;
opcClient.Disconnected += OpcClient_Disconnected;
opcClient.Disconnecting += OpcClient_Disconnecting;
opcClient.Reconnected += OpcClient_Reconnected;
opcClient.Reconnecting += OpcClient_Reconnecting;
opcClient.Connect();
var commands = new List <OpcSubscribeDataChange>();
if (!string.IsNullOrEmpty(NodePotentio1))
{
commands.Add(new OpcSubscribeDataChange(NodePotentio1, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodePotentio1");
}
if (!string.IsNullOrEmpty(NodePotentio2))
{
commands.Add(new OpcSubscribeDataChange(NodePotentio2, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodePotentio2");
}
if (!string.IsNullOrEmpty(NodeSwitch1))
{
commands.Add(new OpcSubscribeDataChange(NodeSwitch1, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodeSwitch1");
}
if (!string.IsNullOrEmpty(NodeSwitch2))
{
commands.Add(new OpcSubscribeDataChange(NodeSwitch2, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodeSwitch2");
}
if (!string.IsNullOrEmpty(NodeRelay1))
{
commands.Add(new OpcSubscribeDataChange(NodeRelay1, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodeRelay1");
}
if (!string.IsNullOrEmpty(NodeRelay2))
{
commands.Add(new OpcSubscribeDataChange(NodeRelay2, OpcDataChangeTrigger.StatusValue, HandleDataChangedMachineLineNode));
}
else
{
System.Console.WriteLine("Ignored empty NodeRelay2");
}
OpcSubscription subscription = opcClient.SubscribeNodes(commands);
Console.WriteLine($"Client started... (listening to '{NodePotentio1},{NodePotentio2},{NodeSwitch1},{NodeSwitch2},{NodeRelay1},{NodeRelay2}' at '{Address}')");
while (true)
{
// keep thread alive
Thread.Sleep(1000);
}
}
catch (System.Exception ex)
{
// TODO: Test for Timeout towards OPC-UA Server connection
Console.WriteLine($"Fatal ThreadBody exception: {ex.Message}");
var logLevelMessage = new LogLevelMessage {
logLevel = LogLevelMessage.LogLevel.Critical, code = "00", message = $"ThreadBody exception: {ex.Message}"
};
SendLogLevelMessage(logLevelMessage).Wait();
Console.WriteLine("Halted...");
}
}