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.xenserver.resource.wrapper.xenbase;
  
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.commons.collections.MapUtils;
  import org.apache.xmlrpc.XmlRpcException;
  
  import com.cloud.agent.api.Answer;
  import com.cloud.agent.api.UnPlugNicAnswer;
  import com.cloud.agent.api.UnPlugNicCommand;
  import com.cloud.agent.api.to.NicTO;
  import com.cloud.hypervisor.xenserver.resource.CitrixResourceBase;
  import com.cloud.resource.CommandWrapper;
  import com.cloud.resource.ResourceWrapper;
  import com.xensource.xenapi.Connection;
  import com.xensource.xenapi.Network;
  import com.xensource.xenapi.Types;
  import com.xensource.xenapi.VIF;
  import com.xensource.xenapi.VM;
  
  @ResourceWrapper(handles =  UnPlugNicCommand.class)
  public final class CitrixUnPlugNicCommandWrapper extends CommandWrapper<UnPlugNicCommand, Answer, CitrixResourceBase> {
  
  
      @Override
      public Answer execute(final UnPlugNicCommand command, final CitrixResourceBase citrixResourceBase) {
          final Connection conn = citrixResourceBase.getConnection();
          final String vmName = command.getVmName();
          final Map<String, Boolean> vlanToPersistenceMap = command.getVlanToPersistenceMap();
          try {
              final Set<VM> vms = VM.getByNameLabel(conn, vmName);
              if (vms == null || vms.isEmpty()) {
                  return new UnPlugNicAnswer(command, false, "Can not find VM " + vmName);
              }
              final VM vm = vms.iterator().next();
              final NicTO nic = command.getNic();
              final String mac = nic.getMac();
              final VIF vif = citrixResourceBase.getVifByMac(conn, vm, mac);
              if (vif != null) {
                  vif.unplug(conn);
                  final Network network = vif.getNetwork(conn);
                  vif.destroy(conn);
                  try {
                      if (network.getNameLabel(conn).startsWith("VLAN")) {
                          String networkLabel = network.getNameLabel(conn);
                          citrixResourceBase.disableVlanNetwork(conn, network, shouldDeleteVlan(networkLabel, vlanToPersistenceMap));
                      }
                  } catch (final Exception e) {
                  }
              }
              return new UnPlugNicAnswer(command, true, "success");
          } catch (final Exception e) {
              final String msg = " UnPlug Nic failed due to " + e.toString();
              logger.warn(msg, e);
              return new UnPlugNicAnswer(command, false, msg);
          }
      }
  
      private boolean shouldDeleteVlan(String networkLabel, Map<String, Boolean> vlanToPersistenceMap) throws XmlRpcException, Types.XenAPIException {
          String[] networkNameParts = networkLabel.split("-");
          String networkVlan = networkNameParts[networkNameParts.length -1];
          if (MapUtils.isNotEmpty(vlanToPersistenceMap) && networkVlan != null && vlanToPersistenceMap.containsKey(networkVlan)) {
              return vlanToPersistenceMap.get(networkVlan);
          }
          return true;
      }
  }
  