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.hypervisor.kvm.resource;
  
  import java.util.Map;
  
  import javax.naming.ConfigurationException;
  
  import com.cloud.agent.properties.AgentProperties;
  import com.cloud.agent.properties.AgentPropertiesFileHandler;
  import org.apache.logging.log4j.Logger;
  import org.apache.logging.log4j.LogManager;
  import org.libvirt.LibvirtException;
  
  import com.cloud.agent.api.to.NicTO;
  import com.cloud.exception.InternalErrorException;
  
  public abstract class VifDriverBase implements VifDriver {
  
      protected Logger logger = LogManager.getLogger(getClass());
  
      protected LibvirtComputingResource _libvirtComputingResource;
      protected Map<String, String> _pifs;
      protected Map<String, String> _bridges;
  
      protected static final int bitsPerMbpsToKbps = 125;
  
      @Override
      public void configure(Map<String, Object> params) throws ConfigurationException {
          _libvirtComputingResource = (LibvirtComputingResource)params.get("libvirt.computing.resource");
          _bridges = (Map<String, String>)params.get("libvirt.host.bridges");
          _pifs = (Map<String, String>)params.get("libvirt.host.pifs");
      }
  
      protected String getControlCidr(String defaultValue) {
          String controlCidr = AgentPropertiesFileHandler.getPropertyValue(AgentProperties.CONTROL_CIDR);
          return controlCidr;
      }
  
      @Override
      public abstract LibvirtVMDef.InterfaceDef plug(NicTO nic, String guestOsType, String nicAdapter, Map<String, String> extraConfig) throws InternalErrorException, LibvirtException;
  
      @Override
      public abstract void unplug(LibvirtVMDef.InterfaceDef iface, boolean deleteBr);
  
      protected LibvirtVMDef.InterfaceDef.NicModel getGuestNicModel(String platformEmulator, String nicAdapter) {
          // if nicAdapter is found in ENUM, use it. Otherwise, match guest OS type as before
          if (nicAdapter != null && !nicAdapter.isEmpty()) {
              for (LibvirtVMDef.InterfaceDef.NicModel model : LibvirtVMDef.InterfaceDef.NicModel.values()) {
                  if (model.toString().equalsIgnoreCase(nicAdapter)) {
                      return model;
                  }
              }
          }
  
          if (_libvirtComputingResource.isGuestPVEnabled(platformEmulator)) {
              return LibvirtVMDef.InterfaceDef.NicModel.VIRTIO;
          } else {
              return LibvirtVMDef.InterfaceDef.NicModel.E1000;
          }
      }
  
      public boolean isExistingBridge(String bridgeName) {
          return false;
      }
  
      protected static int getNetworkRateKbps(NicTO nic) {
          if (nic.getNetworkRateMbps() != null && nic.getNetworkRateMbps().intValue() != -1) {
              return nic.getNetworkRateMbps().intValue() * bitsPerMbpsToKbps;
          }
          return 0;
      }
  }
  