private FieldDescriptorDto GetFieldDescriptor(DeviceDto device, string fieldName, string port)
{
if (string.IsNullOrEmpty(port))
{
return(device.GetField(fieldName));
}
// Port has a space in it.
// e.g. powerState and powerState-port-1
string fieldAndPortName = string.Format("{0}-{1}", fieldName, port);
FieldDescriptorDto field = device.GetField(fieldAndPortName);
if (field != null)
{
return(field);
}
return(GetFieldDescriptor(device, fieldName, null));
}
protected async Task <FieldValueDto> GetFieldValue(string token, DeviceDto device, string fieldName, string port)
{
FieldDescriptorDto field = GetFieldDescriptor(device, fieldName, port);
if (field == null)
{
LambdaLogger.Log("Did not find required field '" + fieldName + "' for device: " + device.DisplayName);
return(null);
}
LambdaLogger.Log("Getting field '" + fieldName + "' value from device: " + device.DisplayName);
var value = await _measurementsClient.GetFieldValueAsync(token, device.Id, field);
if (value == null)
{
LambdaLogger.Log("Did not find field '" + fieldName + "' value for device: " + device.DisplayName);
return(null);
}
return(value);
}
public Task <FieldValueDto> GetFieldValueAsync(string authToken, string deviceId, FieldDescriptorDto field)
{
throw new System.NotImplementedException();
}
public async Task <FieldValueDto> GetFieldValueAsync(string authToken, string deviceId, FieldDescriptorDto field)
{
var uri = string.Format(baseUri, deviceId, field.Channel, field.Name);
LambdaLogger.Log("Get field from: " + uri);
SenMLDto senml = await _restClient.GetAsJsonAsync <SenMLDto>(authToken, uri);
return(senml.e.FirstOrDefault());
}
