///<summary> /// Handle action request. ///</summary> public static void HandleMethodRequest(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXDLMSConnectionEventArgs connectionInfo, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { ErrorCode error = ErrorCode.Ok; GXByteBuffer bb = new GXByteBuffer(); // Get type. ActionRequestType type = (ActionRequestType)data.GetUInt8(); // Get invoke ID and priority. byte invokeId = data.GetUInt8(); settings.UpdateInvokeId(invokeId); // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute Id byte id = data.GetUInt8(); // Get parameters. object parameters = null; byte selection = data.GetUInt8(); if (xml != null) { xml.AppendStartTag(Command.MethodRequest); if (type == ActionRequestType.Normal) { xml.AppendStartTag(Command.MethodRequest, ActionRequestType.Normal); xml.AppendLine(TranslatorTags.InvokeId, "Value", xml.IntegerToHex(invokeId, 2)); AppendMethodDescriptor(xml, (int)ci, ln, id); if (selection != 0) { //MethodInvocationParameters xml.AppendStartTag(TranslatorTags.MethodInvocationParameters); GXDataInfo di = new GXDataInfo(); di.xml = xml; GXCommon.GetData(settings, data, di); xml.AppendEndTag(TranslatorTags.MethodInvocationParameters); } xml.AppendEndTag(Command.MethodRequest, ActionRequestType.Normal); } xml.AppendEndTag(Command.MethodRequest); return; } if (selection != 0) { GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(settings, data, info); } GXDLMSObject obj = settings.Objects.FindByLN(ci, GXCommon.ToLogicalName(ln)); if (settings.Connected == ConnectionState.None && !settings.CanAccess() && (ci != ObjectType.AssociationLogicalName || id != 1)) { replyData.Set(GXDLMSServer.GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError, ServiceError.Service, (byte)Service.Unsupported)); return; } if (obj == null) { obj = server.NotifyFindObject(ci, 0, GXCommon.ToLogicalName(ln)); } if (obj == null) { // Device reports a undefined object. error = ErrorCode.UndefinedObject; } else { ValueEventArgs e = new ValueEventArgs(server, obj, id, 0, parameters); e.InvokeId = invokeId; if (server.NotifyGetMethodAccess(e) == MethodAccessMode.NoAccess) { error = ErrorCode.ReadWriteDenied; } else { server.NotifyAction(new ValueEventArgs[] { e }); byte[] actionReply; if (e.Handled) { actionReply = (byte[])e.Value; } else { actionReply = (obj as IGXDLMSBase).Invoke(settings, e); server.NotifyPostAction(new ValueEventArgs[] { e }); } //Set default action reply if not given. if (actionReply != null && e.Error == 0) { //Add return parameters bb.SetUInt8(1); //Add parameters error code. bb.SetUInt8(0); GXCommon.SetData(settings, bb, GXDLMSConverter.GetDLMSDataType(actionReply), actionReply); } else { error = e.Error; //Add return parameters bb.SetUInt8(0); } } invokeId = (byte)e.InvokeId; } GXDLMSLNParameters p = new GXDLMSLNParameters(null, settings, invokeId, Command.MethodResponse, 1, null, bb, (byte)error); GXDLMS.GetLNPdu(p, replyData); //If High level authentication fails. if (obj is GXDLMSAssociationLogicalName && id == 1) { if ((obj as GXDLMSAssociationLogicalName).AssociationStatus == Objects.Enums.AssociationStatus.Associated) { server.NotifyConnected(connectionInfo); settings.Connected |= ConnectionState.Dlms; } else { server.NotifyInvalidConnection(connectionInfo); settings.Connected &= ~ConnectionState.Dlms; } } }
///<summary> /// Handle action request. ///</summary> ///<param name="Reply"> /// Received data from the client. ///</param> ///<returns> ///Reply. ///</returns> public static void HandleMethodRequest(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXDLMSConnectionEventArgs connectionInfo, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { ErrorCode error = ErrorCode.Ok; GXByteBuffer bb = new GXByteBuffer(); // Get type. ActionRequestType type = (ActionRequestType)data.GetUInt8(); // Get invoke ID and priority. byte invokeId = data.GetUInt8(); // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute Id byte id = data.GetUInt8(); // Get parameters. object parameters = null; byte selection = data.GetUInt8(); if (xml != null) { xml.AppendStartTag(Command.MethodRequest); if (type == ActionRequestType.Normal) { xml.AppendStartTag(Command.MethodRequest, ActionRequestType.Normal); xml.AppendLine(TranslatorTags.InvokeId, "Value", xml.IntegerToHex(invokeId, 2)); AppendMethodDescriptor(xml, (int)ci, ln, id); if (selection != 0) { //MethodInvocationParameters xml.AppendStartTag(TranslatorTags.MethodInvocationParameters); GXDataInfo di = new GXDataInfo(); di.xml = xml; GXCommon.GetData(settings, data, di); xml.AppendEndTag(TranslatorTags.MethodInvocationParameters); } xml.AppendEndTag(Command.MethodRequest, ActionRequestType.Normal); } xml.AppendEndTag(Command.MethodRequest); return; } if (selection != 0) { GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(settings, data, info); } GXDLMSObject obj = settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln)); if (!settings.Connected && (ci != ObjectType.AssociationLogicalName || id != 1)) { replyData.Set(GXDLMSServer.GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError, ServiceError.Service, (byte)Service.Unsupported)); return; } if (obj == null) { obj = server.NotifyFindObject(ci, 0, GXDLMSObject.ToLogicalName(ln)); } if (obj == null) { // Device reports a undefined object. error = ErrorCode.UndefinedObject; } else { if (obj.GetMethodAccess(id) == MethodAccessMode.NoAccess) { error = ErrorCode.ReadWriteDenied; } else { ValueEventArgs e = new ValueEventArgs(settings, obj, id, 0, parameters); server.NotifyAction(new ValueEventArgs[] { e }); byte[] actionReply; if (e.Handled) { actionReply = (byte[])e.Value; } else { actionReply = (obj as IGXDLMSBase).Invoke(settings, e); } //Set default action reply if not given. if (actionReply != null && e.Error == 0) { //Add return parameters bb.SetUInt8(1); //Add parameters error code. bb.SetUInt8(0); GXCommon.SetData(settings, bb, GXCommon.GetValueType(actionReply), actionReply); } else { error = e.Error; //Add return parameters bb.SetUInt8(0); } } } GXDLMSLNParameters p = new GXDLMSLNParameters(settings, Command.MethodResponse, 1, null, bb, (byte)error); GXDLMS.GetLNPdu(p, replyData); //If High level authentication fails. if (!settings.Connected && obj is GXDLMSAssociationLogicalName && id == 1) { server.NotifyInvalidConnection(connectionInfo); } }