content: // Licensed to the Apache Software Foundation (ASF) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The ASF licenses this file
  // to you under the Apache License, Version 2.0 (the
  // "License"); you may not use this file except in compliance
  // with the License.  You may obtain a copy of the License at
  //
  //   http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing,
  // software distributed under the License is distributed on an
  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  // KIND, either express or implied.  See the License for the
  // specific language governing permissions and limitations
  // under the License.
  package org.apache.cloudstack.network.tungsten.service;
  
  import org.apache.cloudstack.network.tungsten.vrouter.IntrospectApiConnector;
  import org.apache.cloudstack.network.tungsten.vrouter.IntrospectApiConnectorFactory;
  import org.w3c.dom.Document;
  import org.w3c.dom.NodeList;
  
  public class TungstenIntrospectApi {
      private TungstenIntrospectApi() {
      }
  
      private static IntrospectApiConnector getIntrospectConnector(String host, String port) {
          return IntrospectApiConnectorFactory.getInstance(host, port);
      }
  
      public static String getLinkLocalIp(String host, String port, String uuid) {
          Document document = getIntrospectConnector(host, port).getSnhItfReq(uuid);
          NodeList nodeList = document.getElementsByTagName("mdata_ip_addr");
          if (nodeList.getLength() == 1) {
              return nodeList.item(0).getTextContent();
          }
          return null;
      }
  }
  