Updated to add the Validation header flag and EnableValidation Agent configuration parameter

Author: PatrickRitchie

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

@@ -1,4 +1,4 @@
-// Copyright (c) 2024 TrakHound Inc., All Rights Reserved.
+// Copyright (c) 2025 TrakHound Inc., All Rights Reserved.
 // TrakHound Inc. licenses this file to you under the MIT license.
 
 using MTConnect.Assets;
@@ -467,9 +467,11 @@ private MTConnectDevicesHeader GetDevicesHeader(Version mtconnectVersion = null)
                 InstanceId = InstanceId,
                 Sender = Sender,
                 Version = Version.ToString(),
-                TestIndicator = false
+                TestIndicator = false,
+                Validation = Configuration.EnableValidation
             };
 
+            if (version < MTConnectVersions.Version25) header.Validation = false;
             if (version < MTConnectVersions.Version17) header.DeviceModelChangeTime = null;
             if (version < MTConnectVersions.Version12) header.AssetBufferSize = 0;
             if (version < MTConnectVersions.Version12) header.AssetCount = 0;
@@ -492,9 +494,11 @@ private MTConnectStreamsHeader GetStreamsHeader(IObservationBufferResults result
                 FirstSequence = results.FirstSequence,
                 LastSequence = results.LastSequence,
                 NextSequence = results.NextSequence,
-                TestIndicator = false
+                TestIndicator = false,
+                Validation = Configuration.EnableValidation
             };
 
+            if (version < MTConnectVersions.Version25) header.Validation = false;
             if (version < MTConnectVersions.Version17) header.DeviceModelChangeTime = null;
 
             return header;
@@ -513,9 +517,11 @@ private MTConnectAssetsHeader GetAssetsHeader(Version mtconnectVersion = null)
                 InstanceId = InstanceId,
                 Sender = Sender,
                 Version = Version.ToString(),
-                TestIndicator = false
+                TestIndicator = false,
+                Validation = Configuration.EnableValidation
             };
 
+            if (version < MTConnectVersions.Version25) header.Validation = false;
             if (version < MTConnectVersions.Version17) header.DeviceModelChangeTime = null;
 
             return header;

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

@@ -1,4 +1,4 @@
-// Copyright (c) 2024 TrakHound Inc., All Rights Reserved.
+// Copyright (c) 2025 TrakHound Inc., All Rights Reserved.
 // TrakHound Inc. licenses this file to you under the MIT license.
 
 using MTConnect.Agents;
@@ -94,6 +94,12 @@ public string DefaultVersionValue
         [JsonPropertyName("ignoreObservationCase")]
         public bool IgnoreObservationCase { get; set; }
 
+        /// <summary>
+        /// Gets or Sets whether validation information is output
+        /// </summary>
+        [JsonPropertyName("enableValidation")]
+        public bool EnableValidation { get; set; }
+
         /// <summary>
         /// Gets or Sets the default Input (Observation or Asset) validation level. 0 = Ignore, 1 = Warning, 2 = Remove, 3 = Strict
         /// </summary>

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

@@ -1,4 +1,4 @@
-// Copyright (c) 2024 TrakHound Inc., All Rights Reserved.
+// Copyright (c) 2025 TrakHound Inc., All Rights Reserved.
 // TrakHound Inc. licenses this file to you under the MIT license.
 
 using MTConnect.Agents;
@@ -49,6 +49,11 @@ public interface IAgentConfiguration
         /// </summary>
         bool IgnoreObservationCase { get; }
 
+        /// <summary>
+        /// Gets or Sets whether validation information is output
+        /// </summary>
+        bool EnableValidation { get; }
+
         /// <summary>
         /// Gets the default Input (Observation or Asset) validation level. 0 = Ignore, 1 = Warning, 2 = Remove, 3 = Strict
         /// </summary>

libraries/MTConnect.NET-Common/Headers/IMTConnectAssestsHeader.cs

@@ -48,6 +48,11 @@ public interface IMTConnectAssetsHeader
         /// </summary>
         bool TestIndicator { get; }
 
+        /// <summary>
+        /// Indicates if the MTConnect Agent is validating against the normative model.
+        /// </summary>
+        bool Validation { get; }
+
         /// <summary>
         /// CreationTime represents the time that an Agent published the Response Document.
         /// </summary>

libraries/MTConnect.NET-Common/Headers/IMTConnectDevicesHeader.cs

@@ -53,6 +53,11 @@ public interface IMTConnectDevicesHeader
         /// </summary>
         bool TestIndicator { get; }
 
+        /// <summary>
+        /// Indicates if the MTConnect Agent is validating against the normative model.
+        /// </summary>
+        bool Validation { get; }
+
         /// <summary>
         /// CreationTime represents the time that an Agent published the Response Document.
         /// </summary>

libraries/MTConnect.NET-Common/Headers/IMTConnectStreamsHeader.cs

@@ -61,6 +61,11 @@ public interface IMTConnectStreamsHeader
         /// </summary>
         bool TestIndicator { get; }
 
+        /// <summary>
+        /// Indicates if the MTConnect Agent is validating against the normative model.
+        /// </summary>
+        bool Validation { get; }
+
         /// <summary>
         /// CreationTime represents the time that an Agent published the Response Document.
         /// </summary>

libraries/MTConnect.NET-Common/Headers/MTConnectAssestsHeader.cs

@@ -48,6 +48,11 @@ public class MTConnectAssetsHeader : IMTConnectAssetsHeader
         /// </summary>
         public bool TestIndicator { get; set; }
 
+        /// <summary>
+        /// Indicates if the MTConnect Agent is validating against the normative model.
+        /// </summary>
+        public bool Validation { get; set; }
+
         /// <summary>
         /// CreationTime represents the time that an Agent published the Response Document.
         /// </summary>

libraries/MTConnect.NET-Common/Headers/MTConnectDevicesHeader.cs

@@ -53,6 +53,11 @@ public class MTConnectDevicesHeader : IMTConnectDevicesHeader
         /// </summary>
         public bool TestIndicator { get; set; }
 
+        /// <summary>
+        /// Indicates if the MTConnect Agent is validating against the normative model.
+        /// </summary>
+        public bool Validation { get; set; }
+
         /// <summary>
         /// CreationTime represents the time that an Agent published the Response Document.
         /// </summary>

libraries/MTConnect.NET-Common/Headers/MTConnectStreamsHeader.cs

@@ -61,6 +61,11 @@ public class MTConnectStreamsHeader : IMTConnectStreamsHeader
         /// </summary>
         public bool TestIndicator { get; set; }
 
+        /// <summary>
+        /// Indicates if the MTConnect Agent is validating against the normative model.
+        /// </summary>
+        public bool Validation { get; set; }
+
         /// <summary>
         /// CreationTime represents the time that an Agent published the Response Document.
         /// </summary>

libraries/MTConnect.NET-XML/Assets/XmlAssetsHeader.cs

@@ -31,6 +31,9 @@ public class XmlAssetsHeader
         [XmlAttribute("testIndicator")]
         public bool TestIndicator { get; set; }
 
+        [XmlAttribute("validation")]
+        public bool Validation { get; set; }
+
         [XmlAttribute("creationTime")]
         public DateTime CreationTime { get; set; }
 
@@ -45,6 +48,7 @@ public virtual IMTConnectAssetsHeader ToErrorHeader()
             header.AssetCount = AssetCount;
             header.DeviceModelChangeTime = DeviceModelChangeTime;
             header.TestIndicator = TestIndicator;
+            header.Validation = Validation;
             header.CreationTime = CreationTime;
             return header;
         }
@@ -61,6 +65,7 @@ public static void WriteXml(XmlWriter writer, IMTConnectAssetsHeader header)
                 writer.WriteAttributeString("assetCount", header.AssetCount.ToString());
                 writer.WriteAttributeString("deviceModelChangeTime", header.DeviceModelChangeTime);
                 if (header.TestIndicator) writer.WriteAttributeString("testIndicator", header.TestIndicator.ToString());
+                if (header.Validation) writer.WriteAttributeString("validation", header.Validation.ToString());
                 writer.WriteAttributeString("creationTime", header.CreationTime.ToString("o"));
                 writer.WriteEndElement();
             }