BUG-1105: Implement subtree filtering in netconf

[controller.git] / opendaylight / netconf / netconf-util / src / main / java / org / opendaylight / controller / netconf / util / xml / XmlElement.java

diff --git a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/xml/XmlElement.java b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/xml/XmlElement.java
index ac200a0aa668c1a406e044e11205ac90c20fc478..8780925eb185b97493cfc7557620f2846604ecd4 100644 (file)
--- a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/xml/XmlElement.java
+++ b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/xml/XmlElement.java
@@ -338,6 +338,17 @@ public final class XmlElement {
         );
     }
 
+    public Optional<String> getOnlyTextContentOptionally() {
+        // only return text content if this node has exactly one Text child node
+        if (element.getChildNodes().getLength() == 1) {
+            Node item = element.getChildNodes().item(0);
+            if (item instanceof Text) {
+                return Optional.of(((Text) item).getWholeText());
+            }
+        }
+        return Optional.absent();
+    }
+
     public String getNamespaceAttribute() throws MissingNameSpaceException {
         String attribute = element.getAttribute(XmlUtil.XMLNS_ATTRIBUTE_KEY);
         if (attribute == null || attribute.equals("")){