1 files changed, 68 insertions, 0 deletions
diff --git a/common/src/main/java/at/gv/egovernment/moa/util/DOMUtils.java b/common/src/main/java/at/gv/egovernment/moa/util/DOMUtils.java
index a3416d44a..102d3a31f 100644
--- a/common/src/main/java/at/gv/egovernment/moa/util/DOMUtils.java
+++ b/common/src/main/java/at/gv/egovernment/moa/util/DOMUtils.java
@@ -535,6 +535,74 @@ public class DOMUtils {
     return true;
   }
 
+  
+  /**
+   * Schema validate a given DOM element.
+   * 
+   * @param element The element to validate.
+   * @param externalSchemaLocations A <code>String</code> containing namespace
+   * URI to schema location pairs, the same way it is accepted by the <code>xsi:
+   * schemaLocation</code> attribute. 
+   * @param externalNoNamespaceSchemaLocation The schema location of the
+   * schema for elements without a namespace, the same way it is accepted by the
+   * <code>xsi:noNamespaceSchemaLocation</code> attribute.
+   * @return <code>true</code>, if the <code>element</code> validates against
+   * the schemas declared in it.
+   * @throws SAXException An error occurred parsing the document.
+   * @throws IOException An error occurred reading the document from its
+   * serialized representation.
+   * @throws ParserConfigurationException An error occurred configuring the XML
+   * @throws TransformerException An error occurred serializing the element.
+   */
+  public static boolean validateElement(
+    Element element,
+    String externalSchemaLocations,
+    String externalNoNamespaceSchemaLocation,
+    EntityResolver entityResolver)
+    throws
+      ParserConfigurationException,
+      IOException,
+      SAXException,
+      TransformerException {
+
+    byte[] docBytes;
+    SAXParser parser;
+
+    // create the SAX parser
+    if (symbolTable != null) {
+      parser = new SAXParser(symbolTable, grammarPool);
+    } else {
+      parser = new SAXParser();
+    }
+
+    // serialize the document
+    docBytes = serializeNode(element, "UTF-8");
+
+    // set up parser features and attributes
+    parser.setFeature(NAMESPACES_FEATURE, true);
+    parser.setFeature(VALIDATION_FEATURE, true);
+    parser.setFeature(SCHEMA_VALIDATION_FEATURE, true);
+    
+    if (externalSchemaLocations != null) {
+      parser.setProperty(
+        EXTERNAL_SCHEMA_LOCATION_PROPERTY,
+        externalSchemaLocations);
+    }
+    if (externalNoNamespaceSchemaLocation != null) {
+      parser.setProperty(
+        EXTERNAL_NO_NAMESPACE_SCHEMA_LOCATION_PROPERTY,
+        "externalNoNamespaceSchemaLocation");
+    }
+
+    // set up entity resolver and error handler
+    parser.setEntityResolver(entityResolver);
+    parser.setErrorHandler(new MOAErrorHandler());
+
+    // parse validating
+    parser.parse(new InputSource(new ByteArrayInputStream(docBytes)));
+    return true;
+  }
+  
   /**
    * Serialize the given DOM node.
    *