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.List;
  import java.util.Set;
  
  import com.cloud.agent.api.AttachOrDettachConfigDriveCommand;
  import com.cloud.resource.ResourceWrapper;
  import com.xensource.xenapi.Connection;
  import com.xensource.xenapi.VBD;
  import com.xensource.xenapi.VDI;
  import com.xensource.xenapi.VM;
  import com.xensource.xenapi.Types;
  
  import com.cloud.agent.api.Answer;
  import com.cloud.hypervisor.xenserver.resource.CitrixResourceBase;
  import com.cloud.resource.CommandWrapper;
  import org.apache.xmlrpc.XmlRpcException;
  
  @ResourceWrapper(handles =  AttachOrDettachConfigDriveCommand.class)
  public final class CitrixAttachOrDettachConfigDriveCommandWrapper extends CommandWrapper<AttachOrDettachConfigDriveCommand, Answer, CitrixResourceBase> {
  
  
      @Override
      public Answer execute(final AttachOrDettachConfigDriveCommand command, final CitrixResourceBase citrixResourceBase) {
          final Connection conn = citrixResourceBase.getConnection();
  
          String vmName = command.getVmName();
          List<String[]> vmData = command.getVmData();
          String label = command.getConfigDriveLabel();
          Boolean isAttach = command.isAttach();
  
          try {
              Set<VM> vms = VM.getByNameLabel(conn, vmName);
              for (VM vm : vms) {
                  if (isAttach) {
                      if (!citrixResourceBase.createAndAttachConfigDriveIsoForVM(conn, vm, vmData, label)) {
                          logger.debug("Failed to attach config drive iso to VM " + vmName);
                      }
                  } else {
                      // delete the config drive iso attached to VM
                      Set<VDI> vdis = VDI.getByNameLabel(conn, vmName+".iso");
                      if (vdis != null && !vdis.isEmpty()) {
                          logger.debug("Deleting config drive for the VM " + vmName);
                          VDI vdi = vdis.iterator().next();
                          // Find the VM's CD-ROM VBD
                          Set<VBD> vbds = vdi.getVBDs(conn);
  
                          for (VBD vbd : vbds) {
                              VBD.Record vbdRec = vbd.getRecord(conn);
  
                              if (vbdRec.type.equals(Types.VbdType.CD) && !vbdRec.empty && !vbdRec.userdevice.equals(citrixResourceBase._attachIsoDeviceNum)) {
                                  if (vbdRec.currentlyAttached) {
                                      vbd.eject(conn);
                                  }
                                  vbd.destroy(conn);
                              }
                          }
                          vdi.destroy(conn);
                      }
  
                      logger.debug("Successfully dettached config drive iso from the VM " + vmName);
                  }
              }
          }catch (Types.XenAPIException ex) {
              logger.debug("Failed to attach config drive iso to VM " + vmName + " " + ex.getMessage() );
          }catch (XmlRpcException ex) {
              logger.debug("Failed to attach config drive iso to VM " + vmName + " "+ex.getMessage());
          }
  
          return new Answer(command, true, "success");
  
  
      }
  }
  