Added separate DeviceValidationLevel propery and enum to handle MTConnectDevices validation. This allows a device to be validated at a different level than observations/assets

Author: PatrickRitchie

libraries/MTConnect.NET-Common/Agents/DeviceValidationLevel.cs

@@ -0,0 +1,32 @@
+// Copyright (c) 2026 TrakHound Inc., All Rights Reserved.
+// TrakHound Inc. licenses this file to you under the MIT license.
+
+namespace MTConnect.Agents
+{
+    /// <summary>
+    /// Controls how the Agent reacts when Devices data fails validation against
+    /// the MTConnect Standard.
+    /// </summary>
+    public enum DeviceValidationLevel
+    {
+        /// <summary>
+        /// Accept invalid device information; perform no validation action.
+        /// </summary>
+        Ignore,
+
+        /// <summary>
+        /// Accept invalid device information but emit a validation warning.
+        /// </summary>
+        Warning,
+
+        /// <summary>
+        /// Drop the invalid device information and continue processing the remainder.
+        /// </summary>
+        Remove,
+
+        /// <summary>
+        /// Reject the entire device information on the first validation failure.
+        /// </summary>
+        Strict
+    }
+}

libraries/MTConnect.NET-Common/Agents/MTConnectAgent.cs

@@ -1312,15 +1312,15 @@ private Device NormalizeDevice(IDevice device)
                         foreach (var genericComponent in genericComponents)
                         {
                             var validationResults = new ValidationResult(false, $"Invalid Component : \"{genericComponent.Type}\" Not Found");
-                            if (_configuration.InputValidationLevel > InputValidationLevel.Ignore)
+                            if (_configuration.DeviceValidationLevel > DeviceValidationLevel.Ignore)
                             {
                                 MulticastIsolation.Raise(InvalidComponentAdded, h => h(obj.Uuid, genericComponent, validationResults));
 
                                 // Remove Component from Device
-                                if (_configuration.InputValidationLevel == InputValidationLevel.Remove) obj.RemoveComponent(genericComponent.Id);
+                                if (_configuration.DeviceValidationLevel == DeviceValidationLevel.Remove) obj.RemoveComponent(genericComponent.Id);
 
                                 // Invalidate entire Device
-                                if (_configuration.InputValidationLevel == InputValidationLevel.Strict) return null;
+                                if (_configuration.DeviceValidationLevel == DeviceValidationLevel.Strict) return null;
                             }
                         }
                     }
@@ -1332,15 +1332,15 @@ private Device NormalizeDevice(IDevice device)
                         foreach (var genericComposition in genericCompositions)
                         {
                             var validationResults = new ValidationResult(false, $"Invalid Composition : \"{genericComposition.Type}\" Not Found");
-                            if (_configuration.InputValidationLevel > InputValidationLevel.Ignore)
+                            if (_configuration.DeviceValidationLevel > DeviceValidationLevel.Ignore)
                             {
                                 MulticastIsolation.Raise(InvalidCompositionAdded, h => h(obj.Uuid, genericComposition, validationResults));
 
                                 // Remove Compsition from Device
-                                if (_configuration.InputValidationLevel == InputValidationLevel.Remove) obj.RemoveComposition(genericComposition.Id);
+                                if (_configuration.DeviceValidationLevel == DeviceValidationLevel.Remove) obj.RemoveComposition(genericComposition.Id);
 
                                 // Invalidate entire Device
-                                if (_configuration.InputValidationLevel == InputValidationLevel.Strict) return null;
+                                if (_configuration.DeviceValidationLevel == DeviceValidationLevel.Strict) return null;
                             }
                         }
                     }
@@ -1352,15 +1352,15 @@ private Device NormalizeDevice(IDevice device)
                         foreach (var genericDataItem in genericDataItems)
                         {
                             var validationResults = new ValidationResult(false, $"Invalid DataItem : \"{genericDataItem.Type}\" Not Found");
-                            if (_configuration.InputValidationLevel > InputValidationLevel.Ignore)
+                            if (_configuration.DeviceValidationLevel > DeviceValidationLevel.Ignore)
                             {
                                 MulticastIsolation.Raise(InvalidDataItemAdded, h => h(obj.Uuid, genericDataItem, validationResults));
 
                                 // Remove DataItem from Device
-                                if (_configuration.InputValidationLevel == InputValidationLevel.Remove) obj.RemoveDataItem(genericDataItem.Id);
+                                if (_configuration.DeviceValidationLevel == DeviceValidationLevel.Remove) obj.RemoveDataItem(genericDataItem.Id);
 
                                 // Invalidate entire Device
-                                if (_configuration.InputValidationLevel == InputValidationLevel.Strict) return null;
+                                if (_configuration.DeviceValidationLevel == DeviceValidationLevel.Strict) return null;
                             }
                         }
                     }

libraries/MTConnect.NET-Common/Configurations/AgentConfiguration.cs

@@ -127,6 +127,12 @@ public string DefaultVersionValue
         [JsonPropertyName("enableValidation")]
         public bool EnableValidation { get; set; }
 
+        /// <summary>
+        /// Gets or Sets the default Device (MTConnectDevices) validation level. 0 = Ignore, 1 = Warning, 2 = Remove, 3 = Strict
+        /// </summary>
+        [JsonPropertyName("deviceValidationLevel")]
+        public DeviceValidationLevel DeviceValidationLevel { get; set; }
+
         /// <summary>
         /// Gets or Sets the default Input (Observation or Asset) validation level. 0 = Ignore, 1 = Warning, 2 = Remove, 3 = Strict
         /// </summary>
@@ -155,6 +161,7 @@ public AgentConfiguration()
             ObservationBufferSize = 131072;
             AssetBufferSize = 1024;
             DefaultVersion = MTConnectVersions.Max;
+            DeviceValidationLevel = DeviceValidationLevel.Warning;
             InputValidationLevel = InputValidationLevel.Warning;
             ConvertUnits = true;
             IgnoreObservationCase = false;

libraries/MTConnect.NET-Common/Configurations/IAgentConfiguration.cs

@@ -65,6 +65,11 @@ public interface IAgentConfiguration
         /// </summary>
         bool EnableValidation { get; }
 
+        /// <summary>
+        /// Gets or Sets the default Device (MTConnectDevices) validation level. 0 = Ignore, 1 = Warning, 2 = Remove, 3 = Strict
+        /// </summary>
+        DeviceValidationLevel DeviceValidationLevel { get; }
+
         /// <summary>
         /// Gets the default Input (Observation or Asset) validation level. 0 = Ignore, 1 = Warning, 2 = Remove, 3 = Strict
         /// </summary>