private void handler_OnReadPropertyRequest(BacnetClient sender, BacnetAddress adr, byte invoke_id, BacnetObjectId object_id, BacnetPropertyReference property, BacnetMaxSegments max_segments)
{
lock (m_storage)
{
_logger.LogInformation($"Read property request for {property.ToString()} of {object_id.ToString()} from {adr.ToString()}.");
try
{
IList <BacnetValue> value;
DeviceStorage.ErrorCodes code = m_storage.ReadProperty(object_id, (BacnetPropertyIds)property.propertyIdentifier, property.propertyArrayIndex, out value);
if (code == DeviceStorage.ErrorCodes.Good)
{
sender.ReadPropertyResponse(adr, invoke_id, sender.GetSegmentBuffer(max_segments), object_id, property, value);
}
else
{
sender.ErrorResponse(adr, BacnetConfirmedServices.SERVICE_CONFIRMED_READ_PROPERTY, invoke_id, BacnetErrorClasses.ERROR_CLASS_DEVICE, BacnetErrorCodes.ERROR_CODE_OTHER);
}
}
catch (Exception)
{
sender.ErrorResponse(adr, BacnetConfirmedServices.SERVICE_CONFIRMED_READ_PROPERTY, invoke_id, BacnetErrorClasses.ERROR_CLASS_DEVICE, BacnetErrorCodes.ERROR_CODE_OTHER);
}
}
}
public ErrorCodes ReadPropertyValue(BacnetPropertyReference PropRef, out IList <BacnetValue> propVal)
{
propVal = null;
try
{
string PropName = PropRef.ToString();
if (PropName[0] != 'P')
{
PropName = "PROP_" + PropName; // private property, not in the Enum list
}
propVal = FindPropValue(PropName);
if (propVal == null)
{
return(ErrorCodes.NotExist);
}
// number of elements required
if (PropRef.propertyArrayIndex == 0)
{
propVal = new BacnetValue[] { new BacnetValue(BacnetApplicationTags.BACNET_APPLICATION_TAG_UNSIGNED_INT, (uint)propVal.Count) };
return(ErrorCodes.Good);
}
// only a particular element
else if (PropRef.propertyArrayIndex != System.IO.BACnet.Serialize.ASN1.BACNET_ARRAY_ALL)
{
if ((int)PropRef.propertyArrayIndex <= (uint)propVal.Count)
{
propVal = new BacnetValue[] { propVal[(int)PropRef.propertyArrayIndex - 1] }
}
;
else
{
return(ErrorCodes.IndexNotExist);
}
}
return(ErrorCodes.Good);
}
catch
{
return(ErrorCodes.GenericError);
}
}
