internal static void Read(ILogger _logger, System.Net.Http.HttpClient client, GXDLMSReader reader, GXTask task, GXDLMSObject obj)
{
AddValue v;
System.Net.Http.HttpResponseMessage response;
if (_logger != null)
{
_logger.LogInformation("Reading: " + obj.ToString());
}
Console.WriteLine("Reading: " + obj.ToString());
object val;
if (obj.ObjectType == ObjectType.ProfileGeneric && task.Index == 2 && GetReadTime(task.Object) != DateTime.MinValue && IsSortedByDateTime(task.Object))
{
//Add date time object so GXDLMSClient is not thrown an Capture objects not read-exception.
GXKeyValuePair <GXDLMSObject, GXDLMSCaptureObject> p = new GXKeyValuePair <GXDLMSObject, GXDLMSCaptureObject>(new GXDLMSClock(), new GXDLMSCaptureObject(2, 0));
((GXDLMSProfileGeneric)obj).CaptureObjects.Add(p);
//Read profile generic using range.
DateTime now = DateTime.Now;
now = now.AddSeconds(-now.Second);
now = now.AddMinutes(-now.Minute);
now = now.AddHours(1);
val = reader.ReadRowsByRange((GXDLMSProfileGeneric)obj, task.Object.Attributes[GetBufferIndex(task.Object)].Read, now);
}
else
{
val = reader.Read(obj, task.Index);
}
if (val is Enum)
{
//Enum values are saved as interger.
val = Convert.ToString(Convert.ToInt32(val));
}
else if (val is byte[])
{
DataType dt = (DataType)task.Object.Attributes[GetBufferIndex(task.Object)].UIDataType;
if (dt == DataType.String)
{
val = ASCIIEncoding.ASCII.GetString((byte[])val);
}
else if (dt == DataType.StringUTF8)
{
val = ASCIIEncoding.UTF8.GetString((byte[])val);
}
else
{
val = GXCommon.ToHex((byte[])val);
}
}
else if (val is GXDateTime)
{
val = ((GXDateTime)val).ToFormatString();
}
else if (val is string)
{
val = (val as string).Replace("\0", "");
}
if (obj.ObjectType == ObjectType.ProfileGeneric && task.Index == 2)
{
//Make own value from each row.
if (val != null)
{
UInt64 attributeId = task.Object.Attributes[GetBufferIndex(task.Object)].Id;
List <GXValue> list = new List <GXValue>();
DateTime latest = task.Object.Attributes[GetBufferIndex(task.Object)].Read;
DateTime first = latest;
int period = -1;
foreach (GXStructure row in (GXArray)val)
{
bool read = false;
DateTime dt = DateTime.MinValue;
task.Data = GXDLMSTranslator.ValueToXml(row);
for (int pos = 0; pos != row.Count; ++pos)
{
if (row[pos] is byte[])
{
row[pos] = GXDLMSClient.ChangeType((byte[])row[pos], DataType.DateTime);
if (pos == 0)
{
dt = ((GXDateTime)row[pos]).Value.LocalDateTime;
//If we have already read this row.
if (dt <= first)
{
read = true;
break;
}
if (dt > latest)
{
latest = dt;
}
}
}
//Some meters are returning null as date time to save bytes...
if (pos == 0 && row[pos] == null)
{
if (period == -1)
{
period = GetCapturePeriod(task.Object);
if (period == -1)
{
throw new Exception("Invalid capture period.");
}
}
row[pos] = latest.AddMinutes(period);
}
}
if (_logger != null)
{
_logger.LogInformation("Read: " + task.Data);
}
if (!read)
{
list.Add(new GXValue()
{
Read = dt,
Value = task.Data,
AttributeId = attributeId
});
}
}
if (list.Count != 0)
{
v = new AddValue()
{
Items = list.ToArray()
};
response = client.PostAsJsonAsync(Startup.ServerAddress + "/api/value/AddValue", v).Result;
Helpers.CheckStatus(response);
ListDevicesResponse r = response.Content.ReadAsAsync <ListDevicesResponse>().Result;
}
}
}
else
{
if (!(val is string))
{
val = Convert.ToString(val);
}
task.Data = (string)val;
if (_logger != null)
{
_logger.LogInformation("Read: " + (string)val);
}
int index = GetAttributeIndex(task.Object, task.Index);
if (index != -1)
{
UInt64 attributeId = task.Object.Attributes[index].Id;
v = new AddValue()
{
Items = new GXValue[] { new GXValue()
{
AttributeId = attributeId,
Read = DateTime.Now,
Value = (string)val
} }
};
response = client.PostAsJsonAsync(Startup.ServerAddress + "/api/value/AddValue", v).Result;
Helpers.CheckStatus(response);
AddValueResponse r = response.Content.ReadAsAsync <AddValueResponse>().Result;
}
else
{
if (_logger != null)
{
_logger.LogInformation("Invalid task index: " + task.Index);
}
}
}
}
/// <summary>
/// Read data from the meter.
/// </summary>
private static void ReadMeter(object parameter)
{
GXDLMSReader reader = null;
System.Net.Http.HttpClient httpClient = Helpers.client;
using (GXNet media = (GXNet)parameter)
{
try
{
var config = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true)
.Build();
ListenerOptions listener = config.GetSection("Listener").Get <ListenerOptions>();
GXDLMSObjectCollection objects = new GXDLMSObjectCollection();
GXDLMSSecureClient client = new GXDLMSSecureClient(listener.UseLogicalNameReferencing, listener.ClientAddress, listener.ServerAddress, (Authentication)listener.Authentication, listener.Password, (InterfaceType)listener.Interface);
reader = new GXDLMSReader(client, media, _logger);
GXDLMSData ldn = new GXDLMSData("0.0.42.0.0.255");
ldn.SetUIDataType(2, DataType.String);
reader.InitializeConnection();
reader.Read(ldn, 2);
Console.WriteLine("Meter connected: " + ldn.Value);
//Find device.
GXDevice dev = null;
ListDevicesResponse devs = null;
{
using (System.Net.Http.HttpResponseMessage response = httpClient.PostAsJsonAsync(Startup.ServerAddress + "/api/device/ListDevices", new ListDevices()
{
Name = (string)ldn.Value
}).Result)
{
Helpers.CheckStatus(response);
devs = response.Content.ReadAsAsync <ListDevicesResponse>().Result;
}
//If device is unknown.
if (devs.Devices.Length == 0)
{
if (listener.DefaultDeviceTemplate == 0)
{
string str = "Unknown Meter try to connect to the Gurux.DLMS.AMI server: " + ldn.Value;
Console.WriteLine(str);
AddSystemError info = new AddSystemError();
info.Error = new GXSystemError()
{
Error = str
};
using (System.Net.Http.HttpResponseMessage response = httpClient.PostAsJsonAsync(Startup.ServerAddress + "/api/SystemError/AddSystemError", info).Result)
{
Helpers.CheckStatus(response);
}
return;
}
ListDeviceTemplates lt = new ListDeviceTemplates()
{
Ids = new UInt64[] { listener.DefaultDeviceTemplate }
};
using (System.Net.Http.HttpResponseMessage response = httpClient.PostAsJsonAsync(Startup.ServerAddress + "/api/template/ListDeviceTemplates", lt).Result)
{
Helpers.CheckStatus(response);
ListDeviceTemplatesResponse ret = response.Content.ReadAsAsync <ListDeviceTemplatesResponse>().Result;
if (ret.Devices.Length != 1)
{
throw new Exception("DefaultDeviceTemplate value is invalid: " + listener.DefaultDeviceTemplate);
}
dev = new GXDevice();
GXDevice.Copy(dev, ret.Devices[0]);
dev.Name = Convert.ToString(ldn.Value);
dev.TemplateId = listener.DefaultDeviceTemplate;
dev.Manufacturer = ret.Devices[0].Name;
}
dev.Dynamic = true;
UpdateDevice update = new UpdateDevice();
update.Device = dev;
using (System.Net.Http.HttpResponseMessage response = httpClient.PostAsJsonAsync(Startup.ServerAddress + "/api/device/UpdateDevice", update).Result)
{
Helpers.CheckStatus(response);
UpdateDeviceResponse r = response.Content.ReadAsAsync <UpdateDeviceResponse>().Result;
dev.Id = r.DeviceId;
}
using (System.Net.Http.HttpResponseMessage response = httpClient.PostAsJsonAsync(Startup.ServerAddress + "/api/device/ListDevices", new ListDevices()
{
Ids = new UInt64[] { dev.Id }
}).Result)
{
Helpers.CheckStatus(response);
devs = response.Content.ReadAsAsync <ListDevicesResponse>().Result;
}
}
else if (devs.Devices.Length != 1)
{
throw new Exception("There are multiple devices with same name: " + ldn.Value);
}
else
{
dev = devs.Devices[0];
if (dev.Security != Security.None)
{
Console.WriteLine("Reading frame counter.");
GXDLMSData fc = new GXDLMSData(listener.InvocationCounter);
reader.Read(fc, 2);
dev.InvocationCounter = 1 + Convert.ToUInt32(fc.Value);
Console.WriteLine("Device ID: " + dev.Id + " LDN: " + (string)ldn.Value);
Console.WriteLine("Frame counter: " + dev.FrameCounter);
}
GetNextTaskResponse ret;
using (System.Net.Http.HttpResponseMessage response = httpClient.PostAsJsonAsync(Startup.ServerAddress + "/api/task/GetNextTask", new GetNextTask()
{
Listener = true, DeviceId = dev.Id
}).Result)
{
Helpers.CheckStatus(response);
ret = response.Content.ReadAsAsync <GetNextTaskResponse>().Result;
}
if (ret.Tasks == null || ret.Tasks.Length == 0)
{
Console.WriteLine("No tasks to execute");
}
else
{
Console.WriteLine("Task count: " + ret.Tasks.Length);
if (client.ClientAddress != dev.ClientAddress || dev.Security != Security.None)
{
reader.Release();
reader.Disconnect();
client = new GXDLMSSecureClient(dev.UseLogicalNameReferencing, dev.ClientAddress, dev.PhysicalAddress, (Authentication)dev.Authentication, dev.Password, dev.InterfaceType);
client.UseUtc2NormalTime = dev.UtcTimeZone;
client.Standard = (Standard)dev.Standard;
if (dev.Conformance != 0)
{
client.ProposedConformance = (Conformance)dev.Conformance;
}
client.Priority = dev.Priority;
client.ServiceClass = dev.ServiceClass;
client.Ciphering.SystemTitle = GXCommon.HexToBytes(dev.ClientSystemTitle);
client.Ciphering.BlockCipherKey = GXCommon.HexToBytes(dev.BlockCipherKey);
client.Ciphering.AuthenticationKey = GXCommon.HexToBytes(dev.AuthenticationKey);
client.ServerSystemTitle = GXCommon.HexToBytes(dev.DeviceSystemTitle);
client.Ciphering.InvocationCounter = dev.InvocationCounter;
client.Ciphering.Security = (Security)dev.Security;
reader = new GXDLMSReader(client, media, _logger);
reader.InitializeConnection();
}
List <GXValue> values = new List <GXValue>();
foreach (GXTask task in ret.Tasks)
{
GXDLMSObject obj = GXDLMSClient.CreateObject((ObjectType)task.Object.ObjectType);
obj.LogicalName = task.Object.LogicalName;
try
{
if (task.TaskType == TaskType.Write)
{
if (obj.LogicalName == "0.0.1.1.0.255" && task.Index == 2)
{
client.UpdateValue(obj, task.Index, GXDateTime.ToUnixTime(DateTime.UtcNow));
}
else
{
client.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.Reader.Read(null, httpClient, 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] }
};
using (System.Net.Http.HttpResponseMessage response = httpClient.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
};
using (System.Net.Http.HttpResponseMessage response = httpClient.PostAsJsonAsync(Startup.ServerAddress + "/api/error/AddError", error).Result)
{
Helpers.CheckStatus(response);
response.Content.ReadAsAsync <AddErrorResponse>();
}
}
using (System.Net.Http.HttpResponseMessage response = httpClient.PostAsJsonAsync(Startup.ServerAddress + "/api/task/TaskReady", new TaskReady()
{
Tasks = new GXTask[] { task }
}).Result)
{
Helpers.CheckStatus(response);
}
}
}
}
}
}
catch (Exception ex)
{
try
{
AddSystemError info = new AddSystemError();
info.Error = new GXSystemError()
{
Error = ex.Message
};
using (System.Net.Http.HttpResponseMessage response = httpClient.PostAsJsonAsync(Startup.ServerAddress + "/api/SystemError/AddSystemError", info).Result)
{
Helpers.CheckStatus(response);
}
}
catch (Exception ex2)
{
}
}
finally
{
if (reader != null)
{
reader.Close();
}
}
}
}
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.UtcTimeZone = dev.UtcTimeZone;
cl.Standard = (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.
Reader.Read(_logger, client, reader, task, media, obj);
}
}
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);
}
}
}
/// <inheritdoc />
public async Task Post(Uri url, Response response, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
await httpClient.PostAsJsonAsync(url, response, cancellationToken);
}