/// ///<summary>Handle read request. /// </summary> ///<returns> Reply to the client. </returns> /// private byte[][] HandleReadRequest() { GXByteBuffer data = Reply.Data; short type; object value = null; GXByteBuffer bb = new GXByteBuffer(); int cnt = GXCommon.GetObjectCount(data); GXCommon.SetObjectCount(cnt, bb); GXSNInfo info; for (int pos = 0; pos != cnt; ++pos) { type = data.GetUInt8(); // GetRequest normal if (type == 2) { int sn = data.GetUInt16(); info = FindSNObject(sn); if (!info.IsAction) { ValueEventArgs e = new ValueEventArgs(info.Item, info.Index, 0, null); Read(e); if (e.Handled) { value = e.Value; } else { value = (info.Item as IGXDLMSBase).GetValue(Settings, info.Index, 0, null); } // Set status. bb.SetUInt8(0); GXDLMS.AppedData(info.Item, info.Index, bb, value); } else { ValueEventArgs e = new ValueEventArgs(info.Item, info.Index, 0, null); Action(e); if (e.Handled) { value = e.Value; } else { value = ((IGXDLMSBase)info.Item).Invoke(Settings, info.Index, null); } // Set status. bb.SetUInt8(0); // Add value bb.SetUInt8(GXCommon.GetValueType(value)); bb.Add(value); } } else if (type == 2) { // Get request for next data block throw new System.ArgumentException("TODO: Invalid Command."); } else if (type == 4) { // Parameterised access. int sn = data.GetUInt16(); int selector = data.GetUInt8(); GXDataInfo di = new GXDataInfo(); object parameters = GXCommon.GetData(data, di); info = FindSNObject(sn); if (!info.IsAction) { ValueEventArgs e = new ValueEventArgs(info.Item, info.Index, 0, parameters); Read(e); if (e.Handled) { value = e.Value; } else { value = (info.Item as IGXDLMSBase).GetValue(Settings, info.Index, selector, parameters); } // Set status. bb.SetUInt8(0); GXDLMS.AppedData(info.Item, info.Index, bb, value); } else { ValueEventArgs e = new ValueEventArgs(info.Item, info.Index, 0, parameters); e.Value = parameters; Action(e); if (e.Handled) { value = e.Value; } else { value = ((IGXDLMSBase)info.Item).Invoke(Settings, info.Index, parameters); } // Add value bb.Add(value); } } else { throw new System.ArgumentException("Invalid Command."); } } return(GXDLMS.SplitPdu(Settings, Command.ReadResponse, 1, bb, ErrorCode.Ok, DateTime.MinValue)[0]); }
private byte[][] HandleGetRequest() { ErrorCode error = ErrorCode.Ok; GXByteBuffer data = Reply.Data; GXByteBuffer bb = new GXByteBuffer(); short type; int index = 0; object parameters = null; // Get type. type = data.GetUInt8(); // Get invoke ID and priority. data.GetUInt8(); // GetRequest normal if (type == 1) { Settings.ResetBlockIndex(); ServerReply.Index = 0; parameters = null; // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute Id int attributeIndex = data.GetUInt8(); GXDLMSObject obj = Settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln)); if (obj == null) { obj = FindObject(ci, 0, GXDLMSObject.ToLogicalName(ln)); } if (obj == null) { // "Access Error : Device reports a undefined object." error = ErrorCode.UndefinedObject; } else { // AccessSelection int selection = data.GetUInt8(); int selector = 0; if (selection != 0) { selector = data.GetUInt8(); GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(data, info); } ValueEventArgs e = new ValueEventArgs(obj, attributeIndex, 0, parameters); Read(e); object value; if (e.Handled) { value = e.Value; } else { value = (obj as IGXDLMSBase).GetValue(Settings, attributeIndex, selector, parameters); } GXDLMS.AppedData(obj, attributeIndex, bb, value); } ServerReply.ReplyMessages = GXDLMS.SplitPdu(Settings, Command.GetResponse, 1, bb, error, DateTime.MinValue); } else if (type == 2) { // Get request for next data block // Get block index. index = (int)data.GetUInt32(); if (index != Settings.BlockIndex + 1) { Debug.WriteLine("handleGetRequest failed. Invalid block number. " + Settings.BlockIndex + "/" + index); ServerReply.ReplyMessages = GXDLMS.SplitPdu(Settings, Command.GetResponse, 1, bb, ErrorCode.DataBlockNumberInvalid, DateTime.MinValue); index = 0; ServerReply.Index = index; } else { Settings.IncreaseBlockIndex(); index = ServerReply.Index + 1; ServerReply.Index = index; } } else if (type == 3) { // Get request with a list. int cnt = GXCommon.GetObjectCount(data); GXCommon.SetObjectCount(cnt, bb); for (int pos = 0; pos != cnt; ++pos) { ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); short attributeIndex = data.GetUInt8(); GXDLMSObject obj = Settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln)); if (obj == null) { obj = FindObject(ci, 0, GXDLMSObject.ToLogicalName(ln)); } if (obj == null) { // "Access Error : Device reports a undefined object." error = ErrorCode.UndefinedObject; } else { // AccessSelection int selection = data.GetUInt8(); int selector = 0; if (selection != 0) { selector = data.GetUInt8(); GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(data, info); } try { ValueEventArgs e = new ValueEventArgs(obj, attributeIndex, 0, parameters); Read(e); object value; if (e.Handled) { value = e.Value; } else { value = (obj as IGXDLMSBase).GetValue(Settings, attributeIndex, selector, parameters); } bb.SetUInt8(ErrorCode.Ok); GXDLMS.AppedData(obj, attributeIndex, bb, value); } catch (Exception) { bb.SetUInt8(1); bb.SetUInt8(ErrorCode.HardwareFault); } } } ServerReply.ReplyMessages = GXDLMS.SplitPdu(Settings, Command.GetResponse, 3, bb, error, DateTime.MinValue); } else { Debug.WriteLine("handleGetRequest failed. Invalid command type."); Settings.ResetBlockIndex(); // Access Error : Device reports a hardware fault. ServerReply.ReplyMessages = GXDLMS.SplitPdu(Settings, Command.GetResponse, 1, bb, ErrorCode.HardwareFault, DateTime.MinValue); } ServerReply.Index = index; return(ServerReply.ReplyMessages[index]); }