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.contrail.management;
  
  import static com.cloud.utils.AutoCloseableUtil.closeAutoCloseable;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileNotFoundException;
  import java.io.IOException;
  import java.util.Map;
  import java.util.Properties;
  
  import javax.naming.ConfigurationException;
  
  import org.springframework.stereotype.Component;
  
  import com.cloud.deploy.DeploymentPlan;
  import com.cloud.network.Network;
  import com.cloud.network.Networks.BroadcastDomainType;
  import com.cloud.network.Networks.Mode;
  import com.cloud.network.Networks.TrafficType;
  import com.cloud.network.dao.NetworkVO;
  import com.cloud.offering.NetworkOffering;
  import com.cloud.user.Account;
  import com.cloud.utils.PropertiesUtil;
  /**
   * ManagementNetworkGuru
   *
   * Replace the default management network strategy (PodBasedNetworkGuru) by using a Isolated network for management
   * traffic.
   */
  @Component
  public class ManagementNetworkGuru extends ContrailGuru {
      private static final TrafficType[] TrafficTypes = {TrafficType.Management};
  
      private final String configuration = "contrail.properties";
      private String _mgmtCidr;
      private String _mgmtGateway;
  
      @Override
      public String getName() {
          return "ManagementNetworkGuru";
      }
  
      @Override
      public boolean configure(String name, Map<String, Object> params) throws ConfigurationException {
          File configFile = PropertiesUtil.findConfigFile(configuration);
          FileInputStream inputFile = null;
  
          try {
              if (null == configFile) {
                  throw new FileNotFoundException("Configuration file was not found!");
              }
              inputFile = new FileInputStream(configFile);
          } catch (FileNotFoundException e) {
              logger.error(e.getMessage());
              throw new ConfigurationException(e.getMessage());
          }
  
          final Properties configProps = new Properties();
          try {
              configProps.load(inputFile);
          } catch (IOException e) {
              logger.error(e.getMessage());
              throw new ConfigurationException(e.getMessage());
          } finally {
              closeAutoCloseable(inputFile, "error closing config file");
          }
          _mgmtCidr = configProps.getProperty("management.cidr");
          _mgmtGateway = configProps.getProperty("management.gateway");
          logger.info("Management network " + _mgmtCidr + " gateway: " + _mgmtGateway);
          return true;
      }
  
      @Override
      public TrafficType[] getSupportedTrafficType() {
          return TrafficTypes;
      }
  
      @Override
      public boolean isMyTrafficType(TrafficType type) {
          for (TrafficType t : TrafficTypes) {
              if (t == type) {
                  return true;
              }
          }
          return false;
      }
  
      private boolean canHandle(NetworkOffering offering) {
          TrafficType type = offering.getTrafficType();
          return (isMyTrafficType(type));
      }
  
      @Override
      public Network design(NetworkOffering offering, DeploymentPlan plan, Network userSpecified, String name, Long vpcId, Account owner) {
  
          if (!canHandle(offering)) {
              return null;
          }
          NetworkVO network =
              new NetworkVO(offering.getTrafficType(), Mode.Dhcp, BroadcastDomainType.Lswitch, offering.getId(), Network.State.Allocated, plan.getDataCenterId(),
                  plan.getPhysicalNetworkId(), offering.isRedundantRouter());
          if (_mgmtCidr != null) {
              network.setCidr(_mgmtCidr);
              network.setGateway(_mgmtGateway);
          }
          logger.debug("Allocated network " + userSpecified + (network.getCidr() == null ? "" : " subnet: " + network.getCidr()));
          return network;
      }
  
  }
  