1 files changed, 44 insertions, 0 deletions
diff --git a/tools/Sandcastle/Source/BuildAssembler/BuildComponents/ValidateComponent.cs b/tools/Sandcastle/Source/BuildAssembler/BuildComponents/ValidateComponent.cs
new file mode 100644
index 0000000..afd6286
--- /dev/null
+++ b/tools/Sandcastle/Source/BuildAssembler/BuildComponents/ValidateComponent.cs
@@ -0,0 +1,44 @@
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//
+using System;
+using System.Xml;
+using System.Xml.Schema;
+using System.Xml.XPath;
+
+namespace Microsoft.Ddue.Tools {
+
+	public class ValidateComponent : BuildComponent {
+
+		private XmlSchemaSet schemas = new XmlSchemaSet();
+
+		public ValidateComponent (BuildAssembler assembler, XPathNavigator configuration) : base(assembler, configuration) {
+
+			XPathNodeIterator schema_nodes = configuration.Select("schema");
+			foreach (XPathNavigator schema_node in schema_nodes) {
+				string file = schema_node.GetAttribute("file", String.Empty);
+				schemas.Add(null, file);
+			}
+					
+		}
+
+		public override void Apply (XmlDocument document, string key) {
+
+			// set the validate schema
+			document.Schemas = schemas;
+
+			// create a validation handler
+			ValidationEventHandler handler = new ValidationEventHandler(LogValidationError);
+
+			// validate the document
+			document.Validate(handler);
+
+		}
+
+		private void LogValidationError (Object o, ValidationEventArgs e) {
+			string message = String.Format("ValidationError: {0}", e.Message);
+			WriteMessage(MessageLevel.Warn, message);
+		}
+
+	}
+
+}
+\ No newline at end of file