/// <summary>
/// Read attribute value.
/// </summary>
/// <param name="it">COSEM object to read.</param>
/// <param name="attributeIndex">Attribute index.</param>
/// <returns>Read value.</returns>
public object Read(GXDLMSObject it, int attributeIndex)
{
if ((it.GetAccess(attributeIndex) & AccessMode.Read) != 0)
{
GXReplyData reply = new GXReplyData();
if (!ReadDataBlock(Client.Read(it, attributeIndex), reply))
{
if (reply.Error != (short)ErrorCode.Rejected)
{
throw new GXDLMSException(reply.Error);
}
reply.Clear();
Thread.Sleep(1000);
if (!ReadDataBlock(Client.Read(it, attributeIndex), reply))
{
throw new GXDLMSException(reply.Error);
}
}
//Update data type.
if (it.GetDataType(attributeIndex) == DataType.None)
{
it.SetDataType(attributeIndex, reply.DataType);
}
return(Client.UpdateValue(it, attributeIndex, reply.Value));
}
return(null);
}
void OnProfileGenericDataReceived(object sender, GXReplyData reply)
{
if (reply.Value != null)
{
lock (reply)
{
client.UpdateValue(CurrentProfileGeneric, 2, reply.Value);
reply.Value = new Object[0];
}
if (OnAfterRead != null)
{
OnAfterRead(CurrentProfileGeneric, 2);
}
}
}
private async void DoWork(object ínfo)
{
//Give some time DB server to start up.
Thread.Sleep(1000);
GetNextTaskResponse ret = null;
System.Net.Http.HttpResponseMessage response;
//Don't wait reply. It might that DB server is not up yet.
if (ínfo != null)
{
using (response = await client.PostAsJsonAsync(Startup.ServerAddress + "/api/reader/AddReader", new AddReader()
{
Reader = ínfo as GXReaderInfo
}))
{
Helpers.CheckStatus(response);
}
}
_logger.LogInformation("Reader Service is started.");
while (!_cancellationToken.IsCancellationRequested)
{
try
{
using (response = await client.PostAsJsonAsync(Startup.ServerAddress + "/api/task/GetNextTask", new GetNextTask()))
{
Helpers.CheckStatus(response);
ret = await response.Content.ReadAsAsync <GetNextTaskResponse>();
}
if (ret.Tasks != null)
{
int pos = 0;
GXDevice dev;
GXDLMSSecureClient cl;
using (response = await client.PostAsJsonAsync(Startup.ServerAddress + "/api/device/ListDevices", new ListDevices()
{
Ids = new[] { ret.Tasks[0].Object.DeviceId }
}))
{
Helpers.CheckStatus(response);
ListDevicesResponse r = await response.Content.ReadAsAsync <ListDevicesResponse>();
if (r.Devices == null || r.Devices.Length == 0)
{
continue;
}
dev = r.Devices[0];
}
IGXMedia media;
if (string.Compare(dev.MediaType, typeof(GXNet).FullName, true) == 0)
{
media = new GXNet();
}
else if (string.Compare(dev.MediaType, typeof(GXSerial).FullName, true) == 0)
{
media = new GXSerial();
}
else if (string.Compare(dev.MediaType, typeof(GXTerminal).FullName, true) == 0)
{
media = new GXTerminal();
}
else
{
Type type = Type.GetType(dev.MediaType);
if (type == null)
{
string ns = "";
pos = dev.MediaType.LastIndexOf('.');
if (pos != -1)
{
ns = dev.MediaType.Substring(0, pos);
}
foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
{
if (assembly.GetName().Name == ns)
{
if (assembly.GetType(dev.MediaType, false, true) != null)
{
type = assembly.GetType(dev.MediaType);
}
}
}
}
if (type == null)
{
throw new Exception("Invalid media type: " + dev.MediaType);
}
media = (IGXMedia)Activator.CreateInstance(type);
}
if (media == null)
{
throw new Exception("Unknown media type '" + dev.MediaType + "'.");
}
media.Settings = dev.MediaSettings;
GXDLMSReader reader;
//Read frame counter from the meter.
if (dev.Security != 0)
{
cl = new GXDLMSSecureClient(dev.UseLogicalNameReferencing, 16, dev.PhysicalAddress,
Authentication.None, null, (InterfaceType)dev.InterfaceType);
reader = new GXDLMSReader(cl, media, _logger);
media.Open();
reader.InitializeConnection();
//Read Innovation counter.
GXDLMSData d = new GXDLMSData(dev.FrameCounter);
reader.Read(d, 2);
dev.InvocationCounter = 1 + Convert.ToUInt32(d.Value);
reader.Disconnect();
media.Close();
}
cl = new GXDLMSSecureClient(dev.UseLogicalNameReferencing, dev.ClientAddress, dev.PhysicalAddress,
(Authentication)dev.Authentication, dev.Password, (InterfaceType)dev.InterfaceType);
if (dev.HexPassword != null && dev.HexPassword.Length != 0)
{
cl.Password = dev.HexPassword;
}
cl.UseUtc2NormalTime = dev.UtcTimeZone;
cl.Standard = dev.Standard;
cl.Ciphering.SystemTitle = GXCommon.HexToBytes(dev.ClientSystemTitle);
if (cl.Ciphering.SystemTitle != null && cl.Ciphering.SystemTitle.Length == 0)
{
cl.Ciphering.SystemTitle = null;
}
cl.Ciphering.BlockCipherKey = GXCommon.HexToBytes(dev.BlockCipherKey);
if (cl.Ciphering.BlockCipherKey != null && cl.Ciphering.BlockCipherKey.Length == 0)
{
cl.Ciphering.BlockCipherKey = null;
}
cl.Ciphering.AuthenticationKey = GXCommon.HexToBytes(dev.AuthenticationKey);
if (cl.Ciphering.AuthenticationKey != null && cl.Ciphering.AuthenticationKey.Length == 0)
{
cl.Ciphering.AuthenticationKey = null;
}
cl.ServerSystemTitle = GXCommon.HexToBytes(dev.DeviceSystemTitle);
if (cl.ServerSystemTitle != null && cl.ServerSystemTitle.Length == 0)
{
cl.ServerSystemTitle = null;
}
cl.Ciphering.InvocationCounter = dev.InvocationCounter;
cl.Ciphering.Security = (Security)dev.Security;
reader = new GXDLMSReader(cl, media, _logger);
media.Open();
reader.InitializeConnection();
pos = 0;
int count = ret.Tasks.Length;
foreach (GXTask task in ret.Tasks)
{
++pos;
try
{
GXDLMSObject obj = GXDLMSClient.CreateObject((ObjectType)task.Object.ObjectType);
obj.LogicalName = task.Object.LogicalName;
obj.ShortName = task.Object.ShortName;
if (task.TaskType == TaskType.Write)
{
if (obj.LogicalName == "0.0.1.1.0.255" && task.Index == 2)
{
cl.UpdateValue(obj, task.Index, GXDateTime.ToUnixTime(DateTime.UtcNow));
}
else
{
cl.UpdateValue(obj, task.Index, GXDLMSTranslator.XmlToValue(task.Data));
}
reader.Write(obj, task.Index);
}
else if (task.TaskType == TaskType.Action)
{
reader.Method(obj, task.Index, GXDLMSTranslator.XmlToValue(task.Data), DataType.None);
}
else if (task.TaskType == TaskType.Read)
{
//Reading the meter.
if (task.Object.Attributes[0].DataType != 0)
{
obj.SetDataType(task.Index, (DataType)task.Object.Attributes[0].DataType);
}
if (task.Object.Attributes[0].UIDataType != 0)
{
obj.SetUIDataType(task.Index, (DataType)task.Object.Attributes[0].UIDataType);
}
Reader.Read(_logger, client, reader, task, media, obj);
if (task.Object.Attributes[0].DataType == 0)
{
task.Object.Attributes[0].DataType = (int)obj.GetDataType(task.Index);
if (task.Object.Attributes[0].UIDataType == 0)
{
task.Object.Attributes[0].UIDataType = (int)obj.GetUIDataType(task.Index);
}
UpdateDatatype u = new UpdateDatatype()
{
Items = new GXAttribute[] { task.Object.Attributes[0] }
};
response = client.PostAsJsonAsync(Startup.ServerAddress + "/api/Object/UpdateDatatype", u).Result;
Helpers.CheckStatus(response);
}
}
}
catch (Exception ex)
{
task.Result = ex.Message;
AddError error = new AddError();
error.Error = new GXError()
{
DeviceId = dev.Id,
Error = "Failed to " + task.TaskType + " " + task.Object.LogicalName + ":" + task.Index + ". " + ex.Message
};
_logger.LogError(error.Error.Error);
using (response = await client.PostAsJsonAsync(Startup.ServerAddress + "/api/error/AddError", error))
{
Helpers.CheckStatus(response);
await response.Content.ReadAsAsync <AddErrorResponse>();
}
}
task.End = DateTime.Now;
//Close connection after last task is executed.
//This must done because there might be new task to execute.
if (count == pos)
{
try
{
reader.Close();
}
catch (Exception ex)
{
task.Result = ex.Message;
AddError error = new AddError();
error.Error = new GXError()
{
DeviceId = dev.Id,
Error = "Failed to close the connection. " + ex.Message
};
_logger.LogError(error.Error.Error);
using (response = await client.PostAsJsonAsync(Startup.ServerAddress + "/api/error/AddError", error))
{
Helpers.CheckStatus(response);
await response.Content.ReadAsAsync <AddErrorResponse>();
}
}
}
//Update execution time.
response = client.PostAsJsonAsync(Startup.ServerAddress + "/api/task/TaskReady", new TaskReady()
{
Tasks = new GXTask[] { task }
}).Result;
Helpers.CheckStatus(response);
}
}
else
{
try
{
using (response = await client.PostAsJsonAsync(Startup.ServerAddress + "/api/task/WaitChange", new WaitChange()
{
Change = TargetType.Tasks, Time = lastUpdated, WaitTime = _waitTime
}))
{
Helpers.CheckStatus(response);
{
WaitChangeResponse r = await response.Content.ReadAsAsync <WaitChangeResponse>();
if (r.Time > lastUpdated)
{
lastUpdated = r.Time;
}
}
}
}
catch (Exception ex)
{
if (!_cancellationToken.IsCancellationRequested)
{
break;
}
_cancellationToken.WaitHandle.WaitOne(TimeSpan.FromSeconds(10));
}
}
}
catch (Exception ex)
{
//If app is closing.
if (_cancellationToken.IsCancellationRequested)
{
break;
}
if (ret == null)
{
_logger.LogError("Failed to connect to the DB server.");
}
else
{
AddError error = new AddError();
error.Error = new GXError()
{
DeviceId = ret.Tasks[0].Object.DeviceId,
Error = "Failed to " + ret.Tasks[0].TaskType + " " + ret.Tasks[0].Object.LogicalName + ":" + ret.Tasks[0].Index + ". " + ex.Message
};
using (response = await client.PostAsJsonAsync(Startup.ServerAddress + "/api/error/AddError", error))
{
if (ret.Tasks != null)
{
DateTime now = DateTime.Now;
foreach (GXTask it in ret.Tasks)
{
it.Result = ex.Message;
it.End = now;
}
response = await client.PostAsJsonAsync(Startup.ServerAddress + "/api/task/TaskReady", new TaskReady()
{
Tasks = ret.Tasks
});
}
}
}
_logger.LogError(ex.Message);
}
}
}
/// <summary>
/// This method is used to update meter firmware.
/// </summary>
/// <param name="target"></param>
public void ImageUpdate(GXDLMSImageTransfer target, byte[] identification, byte[] data)
{
//Check that image transfer ia enabled.
GXReplyData reply = new GXReplyData();
ReadDataBlock(Client.Read(target, 5), reply);
Client.UpdateValue(target, 5, reply.Value);
if (!target.ImageTransferEnabled)
{
throw new Exception("Image transfer is not enabled");
}
//Step 1: Read image block size.
ReadDataBlock(Client.Read(target, 2), reply);
Client.UpdateValue(target, 2, reply.Value);
// Step 2: Initiate the Image transfer process.
ReadDataBlock(target.ImageTransferInitiate(Client, identification, data.Length), reply);
// Step 3: Transfers ImageBlocks.
int imageBlockCount;
ReadDataBlock(target.ImageBlockTransfer(Client, data, out imageBlockCount), reply);
//Step 4: Check the completeness of the Image.
ReadDataBlock(Client.Read(target, 3), reply);
Client.UpdateValue(target, 3, reply.Value);
// Step 5: The Image is verified;
ReadDataBlock(target.ImageVerify(Client), reply);
// Step 6: Before activation, the Image is checked;
//Get list to images to activate.
ReadDataBlock(Client.Read(target, 7), reply);
Client.UpdateValue(target, 7, reply.Value);
bool bFound = false;
foreach (GXDLMSImageActivateInfo it in target.ImageActivateInfo)
{
if (it.Identification == identification)
{
bFound = true;
break;
}
}
//Read image transfer status.
ReadDataBlock(Client.Read(target, 6), reply);
Client.UpdateValue(target, 6, reply.Value);
if (target.ImageTransferStatus != Gurux.DLMS.Objects.Enums.ImageTransferStatus.VerificationSuccessful)
{
throw new Exception("Image transfer status is " + target.ImageTransferStatus.ToString());
}
if (!bFound)
{
throw new Exception("Image not found.");
}
//Step 7: Activate image.
ReadDataBlock(target.ImageActivate(Client), reply);
}
/// <summary>
/// Client has send data.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void OnReceived(object sender, Gurux.Common.ReceiveEventArgs e)
{
try
{
lock (this)
{
if (trace)
{
Console.WriteLine("<- " + Gurux.Common.GXCommon.ToHex((byte[])e.Data, true));
}
reply.Set((byte[])e.Data);
//Example handles only notify messages.
GXReplyData data = new GXReplyData();
client.GetData(reply, data, notify);
// If all data is received.
if (notify.IsComplete && !notify.IsMoreData)
{
try
{
//Show data as XML.
string xml;
GXDLMSTranslator t = new GXDLMSTranslator(TranslatorOutputType.SimpleXml);
t.DataToXml(notify.Data, out xml);
Console.WriteLine(xml);
// Print received data.
PrintData(notify.Value, 0);
//Example is sending list of push messages in first parameter.
if (notify.Value is List <object> )
{
List <object> tmp = notify.Value as List <object>;
List <KeyValuePair <GXDLMSObject, int> > objects = client.ParsePushObjects((List <object>)tmp[0]);
//Remove first item because it's not needed anymore.
objects.RemoveAt(0);
//Update clock.
int Valueindex = 1;
foreach (KeyValuePair <GXDLMSObject, int> it in objects)
{
client.UpdateValue(it.Key, it.Value, tmp[Valueindex]);
++Valueindex;
//Print value
Console.WriteLine(it.Key.ObjectType + " " + it.Key.LogicalName + " " + it.Value + ":" + it.Key.GetValues()[it.Value - 1]);
}
}
Console.WriteLine("Server address:" + notify.ServerAddress + " Client Address:" + notify.ClientAddress);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
notify.Clear();
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
public void InitializeConnection()
{
try
{
log("Connection");
GXReplyData reply = new GXReplyData();
byte[] data;
UpdateSettings();
//Read frame counter if GeneralProtection is used.
if (!string.IsNullOrEmpty(parent.FrameCounter) && client.Ciphering != null && client.Ciphering.Security != Security.None)
{
reply.Clear();
int add = client.ClientAddress;
Authentication auth = client.Authentication;
Security security = client.Ciphering.Security;
byte[] challenge = client.CtoSChallenge;
try
{
client.ClientAddress = 16;
client.Authentication = Authentication.None;
client.Ciphering.Security = Security.None;
data = SNRMRequest();
if (data != null)
{
try
{
ReadDataBlock(data, "Send SNRM request.", reply);
}
catch (TimeoutException)
{
reply.Clear();
ReadDataBlock(DisconnectRequest(), "Send Disconnect request.", reply);
reply.Clear();
ReadDataBlock(data, "Send SNRM request.", reply);
}
catch (Exception e)
{
reply.Clear();
ReadDataBlock(DisconnectRequest(), "Send Disconnect request.", reply);
throw e;
}
//GXLogWriter.WriteLog("Parsing UA reply succeeded.");
//Has server accepted client.
ParseUAResponse(reply.Data);
}
ReadDataBlock(AARQRequest(), "Send AARQ request.", reply);
try
{
//Parse reply.
ParseAAREResponse(reply.Data);
//GXLogWriter.WriteLog("Parsing AARE reply succeeded.");
reply.Clear();
GXDLMSData d = new GXDLMSData(parent.FrameCounter);
ReadDLMSPacket(Read(d, 2), reply);
client.UpdateValue(d, 2, reply.Value);
client.Ciphering.InvocationCounter = parent.InvocationCounter = 1 + Convert.ToUInt32(d.Value);
reply.Clear();
ReadDataBlock(DisconnectRequest(), "Disconnect request", reply);
}
catch (Exception Ex)
{
reply.Clear();
ReadDataBlock(DisconnectRequest(), "Disconnect request", reply);
throw Ex;
}
}
finally
{
client.ClientAddress = add;
client.Authentication = auth;
client.Ciphering.Security = security;
client.CtoSChallenge = challenge;
}
}
data = SNRMRequest();
if (data != null)
{
try
{
reply.Clear();
ReadDataBlock(data, "Send SNRM request.", reply);
}
catch (TimeoutException)
{
reply.Clear();
ReadDataBlock(DisconnectRequest(), "Send Disconnect request.", reply);
reply.Clear();
ReadDataBlock(data, "Send SNRM request.", reply);
}
catch (Exception e)
{
reply.Clear();
ReadDataBlock(DisconnectRequest(), "Send Disconnect request.", reply);
throw e;
}
//GXLogWriter.WriteLog("Parsing UA reply succeeded.");
//Has server accepted client.
ParseUAResponse(reply.Data);
}
if (!parent.PreEstablished)
{
//Generate AARQ request.
//Split requests to multiple packets if needed.
//If password is used all data might not fit to one packet.
reply.Clear();
ReadDataBlock(AARQRequest(), "Send AARQ request.", reply);
try
{
//Parse reply.
ParseAAREResponse(reply.Data);
//GXLogWriter.WriteLog("Parsing AARE reply succeeded.");
}
catch (Exception Ex)
{
reply.Clear();
ReadDLMSPacket(DisconnectRequest(), reply);
throw Ex;
}
//If authentication is required.
if (client.Authentication > Authentication.Low)
{
reply.Clear();
ReadDataBlock(client.GetApplicationAssociationRequest(), "Authenticating.", reply);
client.ParseApplicationAssociationResponse(reply.Data);
}
}
}
catch (Exception ex)
{
throw ex;
}
}