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

        private static void GetRequestNormal(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXByteBuffer replyData, GXDLMSTranslatorStructure xml)
        {
            ValueEventArgs e = null;
            GXByteBuffer bb = new GXByteBuffer();
            // Get type.
            ErrorCode status = ErrorCode.Ok;

            settings.Count = settings.Index = 0;
            settings.ResetBlockIndex();
            // CI
            ObjectType ci = (ObjectType)data.GetUInt16();
            byte[] ln = new byte[6];
            data.Get(ln);
            // Attribute Id
            byte attributeIndex = data.GetUInt8();

            // AccessSelection
            byte selection = data.GetUInt8();
            byte selector = 0;
            object parameters = null;
            GXDataInfo info = new GXDataInfo();
            if (selection != 0)
            {
                selector = data.GetUInt8();
            }
            if (xml != null)
            {
                AppendAttributeDescriptor(xml, (int)ci, ln, attributeIndex);
                if (selection != 0)
                {
                    info.xml = xml;
                    xml.AppendStartTag(TranslatorTags.AccessSelection);
                    xml.AppendLine(TranslatorTags.AccessSelector, "Value", xml.IntegerToHex(selector, 2));
                    xml.AppendStartTag(TranslatorTags.AccessParameters);
                    GXCommon.GetData(settings, data, info);
                    xml.AppendEndTag(TranslatorTags.AccessParameters);
                    xml.AppendEndTag(TranslatorTags.AccessSelection);
                }
                return;
            }
            if (selection != 0)
            {
                parameters = GXCommon.GetData(settings, data, info);
            }

            GXDLMSObject obj = settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln));
            if (obj == null)
            {
                obj = server.NotifyFindObject(ci, 0, GXDLMSObject.ToLogicalName(ln));
            }
            if (obj == null)
            {
                // "Access Error : Device reports a undefined object."
                status = ErrorCode.UndefinedObject;
            }
            else
            {
                if (obj.GetAccess(attributeIndex) == AccessMode.NoAccess)
                {
                    //Read Write denied.
                    status = ErrorCode.ReadWriteDenied;
                }
                else
                {
                    e = new ValueEventArgs(settings, obj, attributeIndex, selector, parameters);
                    server.NotifyRead(new ValueEventArgs[] { e });
                    object value;
                    if (e.Handled)
                    {
                        value = e.Value;
                    }
                    else
                    {
                        value = (obj as IGXDLMSBase).GetValue(settings, e);
                    }
                    GXDLMS.AppendData(settings, obj, attributeIndex, bb, value);
                    status = e.Error;
                }
            }
            GXDLMS.GetLNPdu(new GXDLMSLNParameters(settings, Command.GetResponse, 1, null, bb, (byte)status), replyData);
            if (settings.Count != settings.Index || bb.Size != bb.Position)
            {
                server.transaction = new GXDLMSLongTransaction(new ValueEventArgs[] { e }, Command.GetRequest, bb);
            }
        }