Gurux.DLMS.GXDLMSLNCommandHandler.HandleSetRequestNormal C# (CSharp) Method

        private static void HandleSetRequestNormal(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, byte type, GXDLMSLNParameters p, GXByteBuffer replyData, GXDLMSTranslatorStructure xml)
        {
            object value = null;
            GXDataInfo reply = new GXDataInfo();
            // CI
            ObjectType ci = (ObjectType)data.GetUInt16();
            byte[] ln = new byte[6];
            data.Get(ln);
            // Attribute index.
            byte index = data.GetUInt8();
            // Get Access Selection.
            data.GetUInt8();
            if (xml != null)
            {
                AppendAttributeDescriptor(xml, (int)ci, ln, index);
                xml.AppendStartTag(TranslatorTags.Value);
                GXDataInfo di = new GXDataInfo();
                di.xml = xml;
                value = GXCommon.GetData(settings, data, di);
                if (!di.Complete)
                {
                    value = GXCommon.ToHex(data.Data, false, data.Position, data.Size - data.Position);
                }
                else if (value is byte[])
                {
                    value = GXCommon.ToHex((byte[])value, false);
                }
                xml.AppendEndTag(TranslatorTags.Value);
                return;
            }
            if (type == 2)
            {
                p.multipleBlocks = data.GetUInt8() == 0;
                UInt32 blockNumber = data.GetUInt32();
                if (blockNumber != settings.BlockIndex)
                {
                    Debug.WriteLine("HandleSetRequest failed. Invalid block number. " + settings.BlockIndex + "/" + blockNumber);
                    p.status = (byte)ErrorCode.DataBlockNumberInvalid;
                    return;
                }
                settings.IncreaseBlockIndex();
                int size = GXCommon.GetObjectCount(data);
                int realSize = data.Size - data.Position;
                if (size != realSize)
                {
                    Debug.WriteLine("HandleSetRequest failed. Invalid block size.");
                    p.status = (byte)ErrorCode.DataBlockUnavailable;
                    return;
                }
            }
            if (!p.multipleBlocks)
            {
                settings.ResetBlockIndex();
                value = GXCommon.GetData(settings, data, reply);
            }

            GXDLMSObject obj = settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln));
            if (obj == null)
            {
                obj = server.NotifyFindObject(ci, 0, GXDLMSObject.ToLogicalName(ln));
            }
            // If target is unknown.
            if (obj == null)
            {
                // Device reports a undefined object.
                p.status = (byte)ErrorCode.UndefinedObject;
            }
            else
            {
                AccessMode am = obj.GetAccess(index);
                // If write is denied.
                if (am != AccessMode.Write && am != AccessMode.ReadWrite)
                {
                    //Read Write denied.
                    p.status = (byte)ErrorCode.ReadWriteDenied;
                }
                else
                {
                    try
                    {
                        if (value is byte[])
                        {
                            DataType dt = (obj as IGXDLMSBase).GetDataType(index);
                            if (dt != DataType.None && dt != DataType.OctetString)
                            {
                                value = GXDLMSClient.ChangeType((byte[])value, dt);
                            }
                        }
                        ValueEventArgs e = new ValueEventArgs(settings, obj, index, 0, null);
                        e.Value = value;
                        ValueEventArgs[] list = new ValueEventArgs[] { e };
                        if (p.multipleBlocks)
                        {
                            server.transaction = new GXDLMSLongTransaction(list, Command.GetRequest, data);
                        }
                        server.NotifyWrite(list);
                        if (e.Error != 0)
                        {
                            p.status = (byte)e.Error;
                        }
                        else if (!e.Handled && !p.multipleBlocks)
                        {
                            (obj as IGXDLMSBase).SetValue(settings, e);
                        }
                    }
                    catch (Exception)
                    {
                        p.status = (byte)ErrorCode.HardwareFault;
                    }
                }
            }
        }