Merge "Adjust Tx rate limiter for unused transactions"

[controller.git] / opendaylight / netconf / netconf-util / src / main / java / org / opendaylight / controller / netconf / util / messages / NetconfMessageUtil.java

diff --git a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfMessageUtil.java b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfMessageUtil.java
index 91eb86908b169ca9ecff8a77fb803b2d7ee60184..3c6b6ccab9efa0a0a28b5630da5d5c9f30157610 100644 (file)
--- a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfMessageUtil.java
+++ b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfMessageUtil.java
@@ -8,37 +8,78 @@
 
 package org.opendaylight.controller.netconf.util.messages;
 
+import com.google.common.base.Function;
+import com.google.common.base.Optional;
+import com.google.common.collect.Collections2;
+import java.util.Collection;
+import java.util.List;
+import javax.annotation.Nonnull;
+import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
 import org.opendaylight.controller.netconf.api.NetconfMessage;
+import org.opendaylight.controller.netconf.api.xml.XmlNetconfConstants;
 import org.opendaylight.controller.netconf.util.xml.XmlElement;
-import org.opendaylight.controller.netconf.util.xml.XmlNetconfConstants;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.w3c.dom.Document;
 
 public final class NetconfMessageUtil {
 
+    private static final Logger LOG = LoggerFactory.getLogger(NetconfMessageUtil.class);
+
     private NetconfMessageUtil() {}
 
-    public static boolean isOKMessage(NetconfMessage message) {
+    public static boolean isOKMessage(NetconfMessage message) throws NetconfDocumentedException {
         return isOKMessage(message.getDocument());
     }
 
-    public static boolean isOKMessage(Document document) {
+    public static boolean isOKMessage(Document document) throws NetconfDocumentedException {
         return isOKMessage(XmlElement.fromDomDocument(document));
     }
 
-    public static boolean isOKMessage(XmlElement xmlElement) {
+    public static boolean isOKMessage(XmlElement xmlElement) throws NetconfDocumentedException {
+        if(xmlElement.getChildElements().size() != 1) {
+            return false;
+        }
         return xmlElement.getOnlyChildElement().getName().equals(XmlNetconfConstants.OK);
     }
 
-    public static boolean isErrorMEssage(NetconfMessage message) {
+    public static boolean isErrorMessage(NetconfMessage message) throws NetconfDocumentedException {
         return isErrorMessage(message.getDocument());
     }
 
-    public static boolean isErrorMessage(Document document) {
+    public static boolean isErrorMessage(Document document) throws NetconfDocumentedException {
         return isErrorMessage(XmlElement.fromDomDocument(document));
     }
 
-    public static boolean isErrorMessage(XmlElement xmlElement) {
+    public static boolean isErrorMessage(XmlElement xmlElement) throws NetconfDocumentedException {
+        if(xmlElement.getChildElements().size() != 1) {
+            return false;
+        }
         return xmlElement.getOnlyChildElement().getName().equals(XmlNetconfConstants.RPC_ERROR);
+    }
+
+    public static Collection<String> extractCapabilitiesFromHello(Document doc) throws NetconfDocumentedException {
+        XmlElement responseElement = XmlElement.fromDomDocument(doc);
+        // Extract child element <capabilities> from <hello> with or without(fallback) the same namespace
+        Optional<XmlElement> capabilitiesElement = responseElement
+                .getOnlyChildElementWithSameNamespaceOptionally(XmlNetconfConstants.CAPABILITIES)
+                .or(responseElement
+                        .getOnlyChildElementOptionally(XmlNetconfConstants.CAPABILITIES));
+
+        List<XmlElement> caps = capabilitiesElement.get().getChildElements(XmlNetconfConstants.CAPABILITY);
+        return Collections2.transform(caps, new Function<XmlElement, String>() {
+
+            @Override
+            public String apply(@Nonnull XmlElement input) {
+                // Trim possible leading/tailing whitespace
+                try {
+                    return input.getTextContent().trim();
+                } catch (NetconfDocumentedException e) {
+                    LOG.trace("Error fetching input text content",e);
+                    return null;
+                }
+            }
+        });
 
     }
 }