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 com.cloud.agent.api.Answer;
  import com.cloud.agent.api.check.CheckSshAnswer;
  import com.cloud.agent.api.check.CheckSshCommand;
  import com.cloud.hypervisor.xenserver.resource.CitrixResourceBase;
  import com.cloud.resource.CommandWrapper;
  import com.cloud.resource.ResourceWrapper;
  import com.xensource.xenapi.Connection;
  
  @ResourceWrapper(handles =  CheckSshCommand.class)
  public final class CitrixCheckSshCommandWrapper extends CommandWrapper<CheckSshCommand, Answer, CitrixResourceBase> {
  
  
      @Override
      public Answer execute(final CheckSshCommand command, final CitrixResourceBase citrixResourceBase) {
          final Connection conn = citrixResourceBase.getConnection();
          final String vmName = command.getName();
          final String privateIp = command.getIp();
          final int cmdPort = command.getPort();
  
          if (logger.isDebugEnabled()) {
              logger.debug("Ping command port, " + privateIp + ":" + cmdPort);
          }
  
          try {
              final String result = citrixResourceBase.connect(conn, command.getName(), privateIp, cmdPort, 0);
              if (result != null) {
                  return new CheckSshAnswer(command, "Can not ping System vm " + vmName + "due to:" + result);
              }
              //Do not destroy the disk here! It will stio the patching process. Please, don't!
              //destroyPatchVbd(conn, vmName);
          } catch (final Exception e) {
              return new CheckSshAnswer(command, e);
          }
  
          if (logger.isDebugEnabled()) {
              logger.debug("Ping command port succeeded for vm " + vmName);
          }
  
          return new CheckSshAnswer(command);
      }
  }
  