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 com.cloud.network.router;
  
  import java.util.List;
  
  import javax.inject.Inject;
  
  import org.apache.logging.log4j.Logger;
  import org.apache.logging.log4j.LogManager;
  
  import com.cloud.network.Networks.TrafficType;
  import com.cloud.network.dao.NetworkDao;
  import com.cloud.network.dao.NetworkVO;
  import com.cloud.vm.DomainRouterVO;
  import com.cloud.vm.NicVO;
  import com.cloud.vm.dao.DomainRouterDao;
  import com.cloud.vm.dao.NicDao;
  
  public class RouterControlHelper {
  
      protected Logger logger = LogManager.getLogger(getClass());
  
      @Inject
      private DomainRouterDao routerDao;
  
      @Inject
      private NetworkDao networkDao;
  
      @Inject
      private NicDao nicDao;
  
      public String getRouterControlIp(final long routerId) {
          String routerControlIpAddress = null;
          final List<NicVO> nics = nicDao.listByVmId(routerId);
          for (final NicVO n : nics) {
              final NetworkVO nc = networkDao.findById(n.getNetworkId());
              if (nc != null && nc.getTrafficType() == TrafficType.Control) {
                  routerControlIpAddress = n.getIPv4Address();
                  // router will have only one control ip
                  break;
              }
          }
  
          if (routerControlIpAddress == null) {
              logger.warn("Unable to find router's control ip in its attached NICs!. routerId: " + routerId);
              final DomainRouterVO router = routerDao.findById(routerId);
              return router.getPrivateIpAddress();
          }
  
          return routerControlIpAddress;
      }
  
      public String getRouterIpInNetwork(final long networkId, final long instanceId) {
          return nicDao.getIpAddress(networkId, instanceId);
      }
  }
  