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.kvm.resource.wrapper;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import com.cloud.agent.api.Answer;
  import com.cloud.agent.api.ModifyStoragePoolAnswer;
  import com.cloud.agent.api.ModifyStoragePoolCommand;
  import com.cloud.hypervisor.kvm.resource.LibvirtComputingResource;
  import com.cloud.hypervisor.kvm.storage.KVMStoragePool;
  import com.cloud.hypervisor.kvm.storage.KVMStoragePoolManager;
  import com.cloud.resource.CommandWrapper;
  import com.cloud.resource.ResourceWrapper;
  import com.cloud.storage.template.TemplateProp;
  import com.cloud.utils.exception.CloudRuntimeException;
  
  @ResourceWrapper(handles =  ModifyStoragePoolCommand.class)
  public final class LibvirtModifyStoragePoolCommandWrapper extends CommandWrapper<ModifyStoragePoolCommand, Answer, LibvirtComputingResource> {
  
      @Override
      public Answer execute(final ModifyStoragePoolCommand command, final LibvirtComputingResource libvirtComputingResource) {
          final KVMStoragePoolManager storagePoolMgr = libvirtComputingResource.getStoragePoolMgr();
          if (!command.getAdd()) {
              boolean status = storagePoolMgr.deleteStoragePool(command.getPool().getType(), command.getPool().getUuid(), command.getDetails());
              if (status) {
                  final ModifyStoragePoolAnswer answer = new ModifyStoragePoolAnswer(command, true, null);
                  return answer;
              }
  
              final ModifyStoragePoolAnswer answer = new ModifyStoragePoolAnswer(command, false, "Failed to delete storage pool");
              return answer;
          }
  
          final KVMStoragePool storagepool;
          try {
              storagepool =
                      storagePoolMgr.createStoragePool(command.getPool().getUuid(), command.getPool().getHost(), command.getPool().getPort(), command.getPool().getPath(), command.getPool()
                              .getUserInfo(), command.getPool().getType(), command.getDetails());
              if (storagepool == null) {
                  return new Answer(command, false, " Failed to create storage pool");
              }
          } catch (CloudRuntimeException e) {
              return new Answer(command, false, String.format("Failed to create storage pool: %s", e.getLocalizedMessage()));
          }
  
          final Map<String, TemplateProp> tInfo = new HashMap<String, TemplateProp>();
          final ModifyStoragePoolAnswer answer = new ModifyStoragePoolAnswer(command, storagepool.getCapacity(), storagepool.getAvailable(), tInfo, storagepool.getDetails());
          return answer;
      }
  }
  