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.xen56;
  
  
  import com.cloud.agent.api.Answer;
  import com.cloud.agent.api.NetworkUsageAnswer;
  import com.cloud.agent.api.NetworkUsageCommand;
  import com.cloud.hypervisor.xenserver.resource.XenServer56Resource;
  import com.cloud.resource.CommandWrapper;
  import com.cloud.resource.ResourceWrapper;
  import com.cloud.utils.ExecutionResult;
  import com.xensource.xenapi.Connection;
  
  @ResourceWrapper(handles =  NetworkUsageCommand.class)
  public final class XenServer56NetworkUsageCommandWrapper extends CommandWrapper<NetworkUsageCommand, Answer, XenServer56Resource> {
  
  
      @Override
      public Answer execute(final NetworkUsageCommand command, final XenServer56Resource xenServer56) {
          if (command.isForVpc()) {
              return executeNetworkUsage(command, xenServer56);
          }
          try {
              final Connection conn = xenServer56.getConnection();
              if (command.getOption() != null && command.getOption().equals("create")) {
                  final String result = xenServer56.networkUsage(conn, command.getPrivateIP(), "create", null);
                  final NetworkUsageAnswer answer = new NetworkUsageAnswer(command, result, 0L, 0L);
                  return answer;
              }
              final long[] stats = xenServer56.getNetworkStats(conn, command.getPrivateIP(), null);
              final NetworkUsageAnswer answer = new NetworkUsageAnswer(command, "", stats[0], stats[1]);
              return answer;
          } catch (final Exception ex) {
              logger.warn("Failed to get network usage stats due to ", ex);
              return new NetworkUsageAnswer(command, ex);
          }
      }
  
      protected NetworkUsageAnswer executeNetworkUsage(final NetworkUsageCommand command, final XenServer56Resource xenServer56) {
          try {
              final String option = command.getOption();
              final String publicIp = command.getGatewayIP();
  
              String args = " -l " + publicIp + " ";
              if (option.equals("get")) {
                  args += "-g";
              } else if (option.equals("create")) {
                  args += "-c";
                  final String vpcCIDR = command.getVpcCIDR();
                  args += " -v " + vpcCIDR;
              } else if (option.equals("reset")) {
                  args += "-r";
              } else if (option.equals("vpn")) {
                  args += "-n";
              } else if (option.equals("remove")) {
                  args += "-d";
              } else {
                  return new NetworkUsageAnswer(command, "success", 0L, 0L);
              }
  
              final ExecutionResult result = xenServer56.executeInVR(command.getPrivateIP(), "vpc_netusage.sh", args);
              final String detail = result.getDetails();
              if (!result.isSuccess()) {
                  throw new Exception(" vpc network usage plugin call failed ");
              }
              if (option.equals("get") || option.equals("vpn")) {
                  final long[] stats = new long[2];
                  if (detail != null) {
                      final String[] splitResult = detail.split(":");
                      int i = 0;
                      while (i < splitResult.length - 1) {
                          stats[0] += Long.parseLong(splitResult[i++]);
                          stats[1] += Long.parseLong(splitResult[i++]);
                      }
                      return new NetworkUsageAnswer(command, "success", stats[0], stats[1]);
                  }
              }
              return new NetworkUsageAnswer(command, "success", 0L, 0L);
          } catch (final Exception ex) {
              logger.warn("Failed to get network usage stats due to ", ex);
              return new NetworkUsageAnswer(command, ex);
          }
      }
  }
  