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.vm.snapshot;
  
  import java.util.List;
  
  import org.apache.cloudstack.framework.config.ConfigKey;
  
  import com.cloud.agent.api.RestoreVMSnapshotCommand;
  import com.cloud.utils.component.Manager;
  import com.cloud.vm.UserVmVO;
  import com.cloud.vm.VMInstanceVO;
  
  public interface VMSnapshotManager extends VMSnapshotService, Manager {
  
      static final ConfigKey<Integer> VMSnapshotExpireInterval = new ConfigKey<Integer>("Advanced", Integer.class, "vmsnapshot.expire.interval", "-1",
              "VM Snapshot expire interval in hours", true, ConfigKey.Scope.Account);
  
      ConfigKey<Integer> VMSnapshotMax = new ConfigKey<Integer>("Advanced", Integer.class, "vmsnapshot.max", "10", "Maximum vm snapshots for a single vm", true, ConfigKey.Scope.Global);
  
      /**
       * Delete all VM snapshots belonging to one VM
       * @param id, VM id
       * @param type,
       * @return true for success, false for failure
       */
      boolean deleteAllVMSnapshots(long id, VMSnapshot.Type type);
  
      /**
       * Sync VM snapshot state when VM snapshot in reverting or snapshoting or expunging state
       * Used for fullsync after agent connects
       *
       * @param vm, the VM in question
       * @param hostId
       * @return true if succeeds, false if fails
       */
      boolean syncVMSnapshot(VMInstanceVO vm, Long hostId);
  
      boolean hasActiveVMSnapshotTasks(Long vmId);
  
      RestoreVMSnapshotCommand createRestoreCommand(UserVmVO userVm, List<VMSnapshotVO> vmSnapshotVOs);
  }
  