diff -r 000000000000 -r 522a326673b6 sysmodelmgr/com.symbian.smt.gui/src/com/symbian/smt/gui/XmlFileValidator.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sysmodelmgr/com.symbian.smt.gui/src/com/symbian/smt/gui/XmlFileValidator.java	Thu Mar 11 19:08:43 2010 +0200
@@ -0,0 +1,124 @@
+// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+
+
+package com.symbian.smt.gui;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Locale;
+import java.util.ResourceBundle;
+
+import javax.xml.XMLConstants;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.validation.SchemaFactory;
+
+import org.w3c.dom.Document;
+import org.xml.sax.ErrorHandler;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXParseException;
+
+/**
+ * @author barbararosi-schwartz
+ * 
+ */
+public class XmlFileValidator {
+
+	protected static String smgFolder = ""; // The location of the System Model
+											// Generator
+
+	public XmlFileValidator() {
+		final ResourceBundle resourceBundle = ResourceBundle.getBundle(
+				"location", Locale.getDefault(), this.getClass()
+						.getClassLoader());
+
+		smgFolder = resourceBundle.getString("location");
+	}
+
+	protected Document createDocument(final String filePath)
+			throws ParserConfigurationException, SAXException, IOException {
+		DocumentBuilderFactory domFactory = DocumentBuilderFactory
+				.newInstance();
+		domFactory.setNamespaceAware(true);
+		domFactory.setValidating(false);
+
+		SchemaFactory schemaFactory = SchemaFactory
+				.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
+		File schemaFile = getSchemaFile();
+		
+		// schemaFile could be null if there is no schema for a specific file
+		// (as is the case for the System Definition xml file)
+		if (schemaFile != null && schemaFile.exists()) {
+			domFactory.setSchema(schemaFactory.newSchema(getSchemaFile()));
+		}
+
+		DocumentBuilder builder = domFactory.newDocumentBuilder();
+
+		ErrorHandler errorHandler = new ErrorHandler() {
+			public void error(SAXParseException exception)
+					throws SAXParseException {
+				throw exception;
+			}
+
+			public void fatalError(SAXParseException exception)
+					throws SAXParseException {
+				throw exception;
+			}
+
+			public void warning(SAXParseException exception)
+					throws SAXParseException {
+				throw exception;
+			}
+		};
+
+		builder.setErrorHandler(errorHandler);
+
+		Document doc = builder.parse(filePath);
+
+		return doc;
+	}
+
+	/**
+	 * The default implementation of this method
+	 * returns null, meaning that this Validator
+	 * is not aware of any schema definition for the 
+	 * associated resource.
+	 * 
+	 * @return	the appropriate schema definition file
+	 * 			or null if there is no schema.
+	 */
+	protected File getSchemaFile() {
+		return null;
+	}
+
+	public String validateXml(String filePath) {
+		String errorMessage = null;
+
+		try {
+			createDocument(filePath);
+		} catch (ParserConfigurationException e) {
+			errorMessage = e.getMessage();
+		} catch (SAXException e) {
+			errorMessage = e.getMessage();
+		} catch (IOException e) {
+			errorMessage = e.getMessage();
+		}
+
+		return errorMessage;
+	}
+}