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From bhaisaab <...@git.apache.org>
Subject [GitHub] cloudstack pull request: CLOUDSTACK-8746: VM Snapshotting implemen...
Date Tue, 27 Oct 2015 10:30:40 GMT
Github user bhaisaab commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/977#discussion_r43104526
  
    --- Diff: api/src/org/apache/cloudstack/api/command/user/snapshot/CreateSnapshotFromVMSnapshotCmd.java
---
    @@ -0,0 +1,197 @@
    +// 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 org.apache.cloudstack.api.command.user.snapshot;
    +
    +import org.apache.cloudstack.api.APICommand;
    +import org.apache.cloudstack.api.ApiCommandJobType;
    +import org.apache.cloudstack.api.ApiConstants;
    +import org.apache.cloudstack.api.ApiErrorCode;
    +import org.apache.cloudstack.api.BaseAsyncCmd;
    +import org.apache.cloudstack.api.BaseAsyncCreateCmd;
    +import org.apache.cloudstack.api.Parameter;
    +import org.apache.cloudstack.api.ServerApiException;
    +import org.apache.cloudstack.api.response.SnapshotResponse;
    +import org.apache.cloudstack.api.response.VMSnapshotResponse;
    +import org.apache.cloudstack.context.CallContext;
    +import org.apache.log4j.Logger;
    +
    +import com.cloud.event.EventTypes;
    +import com.cloud.exception.InvalidParameterValueException;
    +import com.cloud.exception.PermissionDeniedException;
    +import com.cloud.exception.ResourceAllocationException;
    +import com.cloud.projects.Project;
    +import com.cloud.storage.Snapshot;
    +import com.cloud.user.Account;
    +import com.cloud.uservm.UserVm;
    +import com.cloud.vm.snapshot.VMSnapshot;
    +
    +@APICommand(name = "createSnapshotFromVMSnapshot", description = "Creates an instant
snapshot of a volume from vm snapshot.", responseObject = SnapshotResponse.class)
    +public class CreateSnapshotFromVMSnapshotCmd extends BaseAsyncCreateCmd {
    +    public static final Logger s_logger = Logger.getLogger(CreateSnapshotFromVMSnapshotCmd.class.getName());
    +    private static final String s_name = "createsnapshotfromvmsnapshotresponse";
    +
    +    // ///////////////////////////////////////////////////
    +    // ////////////// API parameters /////////////////////
    +    // ///////////////////////////////////////////////////
    +
    +    @Parameter(name=ApiConstants.VM_SNAPSHOT_ID, type=CommandType.UUID, entityType=VMSnapshotResponse.class,
    +            required=true, description="The ID of the VM snapshot")
    +     private Long vmSnapshotId;
    +
    +    @Parameter(name = ApiConstants.NAME, type = CommandType.STRING, description = "the
name of the snapshot")
    +    private String snapshotName;
    +
    +    private String syncObjectType = BaseAsyncCmd.snapshotHostSyncObject;
    +
    +    // ///////////////////////////////////////////////////
    +    // ///////////////// Accessors ///////////////////////
    +    // ///////////////////////////////////////////////////
    +
    +    public Long getVMSnapshotId() {
    +        return vmSnapshotId;
    +    }
    +
    +    public String getSnapshotName() {
    +        return snapshotName;
    +    }
    +
    +    private Long getVmId() {
    +        VMSnapshot vmsnapshot = _entityMgr.findById(VMSnapshot.class, getVMSnapshotId());
    +        if (vmsnapshot == null) {
    +            throw new InvalidParameterValueException("Unable to find vm snapshot by id="
+ getVMSnapshotId());
    +        }
    +        UserVm vm = _entityMgr.findById(UserVm.class, vmsnapshot.getVmId());
    +        if (vm == null) {
    +            throw new InvalidParameterValueException("Unable to find vm by vm snapshot
id=" + getVMSnapshotId());
    +        }
    +        return vm.getId();
    +    }
    +    private Long getHostId() {
    +        VMSnapshot vmsnapshot = _entityMgr.findById(VMSnapshot.class, getVMSnapshotId());
    +        if (vmsnapshot == null) {
    +            throw new InvalidParameterValueException("Unable to find vm snapshot by id="
+ getVMSnapshotId());
    +        }
    +        UserVm vm = _entityMgr.findById(UserVm.class, vmsnapshot.getVmId());
    +        if (vm != null) {
    +            if(vm.getHostId() != null) {
    +                return vm.getHostId();
    +            } else if(vm.getLastHostId() != null) {
    +                return vm.getLastHostId();
    +            }
    +        }
    +        return null;
    +    }
    +
    +
    +    // ///////////////////////////////////////////////////
    +    // ///////////// API Implementation///////////////////
    +    // ///////////////////////////////////////////////////
    +
    +    @Override
    +    public String getCommandName() {
    +        return s_name;
    +    }
    +
    +    public static String getResultObjectName() {
    +        return "snapshot";
    +    }
    +
    +    @Override
    +    public long getEntityOwnerId() {
    +
    +        VMSnapshot vmsnapshot = _entityMgr.findById(VMSnapshot.class, getVMSnapshotId());
    +        if (vmsnapshot == null) {
    +            throw new InvalidParameterValueException("Unable to find vmsnapshot by id="
+ getVMSnapshotId());
    +        }
    +
    +        Account account = _accountService.getAccount(vmsnapshot.getAccountId());
    +        //Can create templates for enabled projects/accounts only
    +        if (account.getType() == Account.ACCOUNT_TYPE_PROJECT) {
    +            Project project = _projectService.findByProjectAccountId(vmsnapshot.getAccountId());
    +            if (project.getState() != Project.State.Active) {
    +                throw new PermissionDeniedException("Can't add resources to the project
id=" + project.getId() + " in state=" + project.getState() + " as it's no longer active");
    --- End diff --
    
    use Uuid in the thrown exception?


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