Merge "BUG 1853 : Clustered Data Store causes Out of Memory"

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

diff --git a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfHelloMessage.java b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfHelloMessage.java
index e3eb45070453f038240faebebe584e6ad742d977..15223cb60ba994472cdedc939a6586f569471593 100644 (file)
--- a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfHelloMessage.java
+++ b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfHelloMessage.java
@@ -8,16 +8,20 @@
 
 package org.opendaylight.controller.netconf.util.messages;
 
+import org.opendaylight.controller.netconf.api.NetconfMessage;
+
 import java.util.Set;
 
-import org.opendaylight.controller.netconf.api.NetconfMessage;
+import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
+import org.opendaylight.controller.netconf.api.xml.XmlNetconfConstants;
+import org.opendaylight.controller.netconf.util.exception.MissingNameSpaceException;
 import org.opendaylight.controller.netconf.util.xml.XmlElement;
-import org.opendaylight.controller.netconf.util.xml.XmlNetconfConstants;
 import org.opendaylight.controller.netconf.util.xml.XmlUtil;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
 import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
 import com.google.common.collect.Sets;
 
 /**
@@ -29,13 +33,13 @@ public final class NetconfHelloMessage extends NetconfMessage {
 
     private final NetconfHelloMessageAdditionalHeader additionalHeader;
 
-    public NetconfHelloMessage(Document doc, NetconfHelloMessageAdditionalHeader additionalHeader) {
+    public NetconfHelloMessage(Document doc, NetconfHelloMessageAdditionalHeader additionalHeader) throws NetconfDocumentedException {
         super(doc);
         checkHelloMessage(doc);
         this.additionalHeader = additionalHeader;
     }
 
-    public NetconfHelloMessage(Document doc) {
+    public NetconfHelloMessage(Document doc) throws NetconfDocumentedException {
         this(doc, null);
     }
 
@@ -44,19 +48,13 @@ public final class NetconfHelloMessage extends NetconfMessage {
     }
 
     private static void checkHelloMessage(Document doc) {
-        try {
-            XmlElement.fromDomElementWithExpected(doc.getDocumentElement(), HELLO_TAG,
-                    XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
-
-        } catch (IllegalArgumentException | IllegalStateException e) {
-            throw new IllegalArgumentException(String.format(
-                    "Hello message invalid format, should contain %s tag from namespace %s, but is: %s", HELLO_TAG,
-                    XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0, XmlUtil.toString(doc)), e);
-        }
+        Preconditions.checkArgument(isHelloMessage(doc),
+                "Hello message invalid format, should contain %s tag from namespace %s, but is: %s", HELLO_TAG,
+                XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0, XmlUtil.toString(doc));
     }
 
     public static NetconfHelloMessage createClientHello(Iterable<String> capabilities,
-                                                        Optional<NetconfHelloMessageAdditionalHeader> additionalHeaderOptional) {
+                                                        Optional<NetconfHelloMessageAdditionalHeader> additionalHeaderOptional) throws NetconfDocumentedException {
         Document doc = createHelloMessageDoc(capabilities);
         return additionalHeaderOptional.isPresent() ? new NetconfHelloMessage(doc, additionalHeaderOptional.get())
                 : new NetconfHelloMessage(doc);
@@ -66,10 +64,12 @@ public final class NetconfHelloMessage extends NetconfMessage {
         Document doc = XmlUtil.newDocument();
         Element helloElement = doc.createElementNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0,
                 HELLO_TAG);
-        Element capabilitiesElement = doc.createElement(XmlNetconfConstants.CAPABILITIES);
+        Element capabilitiesElement = doc.createElementNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0,
+                XmlNetconfConstants.CAPABILITIES);
 
         for (String capability : Sets.newHashSet(capabilities)) {
-            Element capElement = doc.createElement(XmlNetconfConstants.CAPABILITY);
+            Element capElement = doc.createElementNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0,
+                    XmlNetconfConstants.CAPABILITY);
             capElement.setTextContent(capability);
             capabilitiesElement.appendChild(capElement);
         }
@@ -80,11 +80,29 @@ public final class NetconfHelloMessage extends NetconfMessage {
         return doc;
     }
 
-    public static NetconfHelloMessage createServerHello(Set<String> capabilities, long sessionId) {
+    public static NetconfHelloMessage createServerHello(Set<String> capabilities, long sessionId) throws NetconfDocumentedException {
         Document doc = createHelloMessageDoc(capabilities);
-        Element sessionIdElement = doc.createElement(XmlNetconfConstants.SESSION_ID);
+        Element sessionIdElement = doc.createElementNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0,
+                XmlNetconfConstants.SESSION_ID);
         sessionIdElement.setTextContent(Long.toString(sessionId));
         doc.getDocumentElement().appendChild(sessionIdElement);
         return new NetconfHelloMessage(doc);
     }
+
+    public static boolean isHelloMessage(final NetconfMessage msg) {
+        Document document = msg.getDocument();
+        return isHelloMessage(document);
+    }
+
+    private static boolean isHelloMessage(final Document document) {
+        XmlElement element = XmlElement.fromDomElement(document.getDocumentElement());
+        try {
+            return element.getName().equals(HELLO_TAG) &&
+                   element.hasNamespace() &&
+                   element.getNamespace().equals(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
+        } catch (MissingNameSpaceException e) {
+            // Cannot happen, since we check for hasNamespace
+            throw new IllegalStateException(e);
+        }
+    }
 }