Add methods to DOMHelper to deal with namespace/prefix lookups

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@815472 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 15 insertions, 0 deletions

diff --git a/java/sca/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/dom/DOMHelper.java b/java/sca/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/dom/DOMHelper.java
index 3c3a2f2097..f2f63e80c6 100644
--- a/java/sca/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/dom/DOMHelper.java
+++ b/java/sca/modules/common-xml/src/main/java/org/apache/tuscany/sca/common/xml/dom/DOMHelper.java
@@ -22,6 +22,7 @@ import java.io.IOException;
 import java.io.StringReader;
 import java.io.StringWriter;
 
+import javax.xml.XMLConstants;
 import javax.xml.namespace.QName;
 import javax.xml.parsers.DocumentBuilder;
 import javax.xml.parsers.DocumentBuilderFactory;
@@ -207,6 +208,20 @@ public class DOMHelper {
         }
         return doc;
     }
+    
+    public static String getPrefix(Element element, String namespace) {
+        if (element.isDefaultNamespace(namespace)) {
+            return XMLConstants.DEFAULT_NS_PREFIX;
+        }
+        return element.lookupPrefix(namespace);
+    }
+
+    public static String getNamespaceURI(Element element, String prefix) {
+        if (XMLConstants.DEFAULT_NS_PREFIX.equals(prefix)) {
+            prefix = null;
+        }
+        return element.lookupNamespaceURI(prefix);
+    }
 
     public static interface NodeContentHandler extends ContentHandler, LexicalHandler {
         Node getNode();