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 org.apache.xmlrpc.XmlRpcException;
  
  import com.cloud.agent.api.Answer;
  import com.cloud.agent.api.OvsFetchInterfaceAnswer;
  import com.cloud.agent.api.OvsFetchInterfaceCommand;
  import com.cloud.hypervisor.xenserver.resource.CitrixResourceBase;
  import com.cloud.hypervisor.xenserver.resource.XsLocalNetwork;
  import com.cloud.resource.CommandWrapper;
  import com.cloud.resource.ResourceWrapper;
  import com.cloud.utils.exception.CloudRuntimeException;
  import com.xensource.xenapi.Connection;
  import com.xensource.xenapi.PIF;
  import com.xensource.xenapi.Types.BadServerResponse;
  import com.xensource.xenapi.Types.XenAPIException;
  
  @ResourceWrapper(handles =  OvsFetchInterfaceCommand.class)
  public final class CitrixOvsFetchInterfaceCommandWrapper extends CommandWrapper<OvsFetchInterfaceCommand, Answer, CitrixResourceBase> {
  
  
      @Override
      public Answer execute(final OvsFetchInterfaceCommand command, final CitrixResourceBase citrixResourceBase) {
          String label = command.getLabel();
          //FIXME: this is a tricky to pass the network checking in XCP. I temporary get default label from Host.
          if (citrixResourceBase.isXcp()) {
              label = citrixResourceBase.getLabel();
          }
          logger.debug("Will look for network with name-label:" + label + " on host " + citrixResourceBase.getHost().getIp());
          final Connection conn = citrixResourceBase.getConnection();
          try {
              final XsLocalNetwork nw = citrixResourceBase.getNetworkByName(conn, label);
              if(nw == null) {
                  throw new CloudRuntimeException("Unable to locate the network with name-label: " + label + " on host: " + citrixResourceBase.getHost().getIp());
              }
              logger.debug("Network object:" + nw.getNetwork().getUuid(conn));
              final PIF pif = nw.getPif(conn);
              final PIF.Record pifRec = pif.getRecord(conn);
              logger.debug("PIF object:" + pifRec.uuid + "(" + pifRec.device + ")");
              return new OvsFetchInterfaceAnswer(command, true, "Interface " + pifRec.device + " retrieved successfully", pifRec.IP, pifRec.netmask, pifRec.MAC);
          } catch (final BadServerResponse e) {
              logger.error("An error occurred while fetching the interface for " + label + " on host " + citrixResourceBase.getHost().getIp(), e);
              return new OvsFetchInterfaceAnswer(command, false, "EXCEPTION:" + e.getMessage());
          } catch (final XenAPIException e) {
              logger.error("An error occurred while fetching the interface for " + label + " on host " + citrixResourceBase.getHost().getIp(), e);
              return new OvsFetchInterfaceAnswer(command, false, "EXCEPTION:" + e.getMessage());
          } catch (final XmlRpcException e) {
              logger.error("An error occurred while fetching the interface for " + label + " on host " + citrixResourceBase.getHost().getIp(), e);
              return new OvsFetchInterfaceAnswer(command, false, "EXCEPTION:" + e.getMessage());
          }
      }
  }
  