// 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.api.commands;
import org.apache.log4j.Logger;
import com.cloud.api.ApiConstants;
import com.cloud.api.BaseAsyncCreateCmd;
import com.cloud.api.BaseCmd;
import com.cloud.api.IdentityMapper;
import com.cloud.api.Implementation;
import com.cloud.api.Parameter;
import com.cloud.api.ServerApiException;
import com.cloud.api.response.SnapshotResponse;
import com.cloud.async.AsyncJob;
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.storage.Volume;
import com.cloud.user.Account;
import com.cloud.user.UserContext;
@Implementation(description = "Creates an instant snapshot of a volume.", responseObject = SnapshotResponse.class)
public class CreateSnapshotCmd extends BaseAsyncCreateCmd {
public static final Logger s_logger = Logger.getLogger(CreateSnapshotCmd.class.getName());
private static final String s_name = "createsnapshotresponse";
// ///////////////////////////////////////////////////
// ////////////// API parameters /////////////////////
// ///////////////////////////////////////////////////
@Parameter(name = ApiConstants.ACCOUNT, type = CommandType.STRING, description = "The account of the snapshot. The account parameter must be used with the domainId parameter.")
private String accountName;
@IdentityMapper(entityTableName="domain")
@Parameter(name = ApiConstants.DOMAIN_ID, type = CommandType.LONG, description = "The domain ID of the snapshot. If used with the account parameter, specifies a domain for the account associated with the disk volume.")
private Long domainId;
@IdentityMapper(entityTableName="volumes")
@Parameter(name = ApiConstants.VOLUME_ID, type = CommandType.LONG, required = true, description = "The ID of the disk volume")
private Long volumeId;
@IdentityMapper(entityTableName="snapshot_policy")
@Parameter(name = ApiConstants.POLICY_ID, type = CommandType.LONG, description = "policy id of the snapshot, if this is null, then use MANUAL_POLICY.")
private Long policyId;
// ///////////////////////////////////////////////////
// ///////////////// Accessors ///////////////////////
// ///////////////////////////////////////////////////
public String getEntityTable() {
return "snapshots";
}
public String getAccountName() {
return accountName;
}
public Long getDomainId() {
return domainId;
}
public Long getVolumeId() {
return volumeId;
}
public Long getPolicyId() {
if (policyId != null) {
return policyId;
} else {
return Snapshot.MANUAL_POLICY_ID;
}
}
// ///////////////////////////////////////////////////
// ///////////// API Implementation///////////////////
// ///////////////////////////////////////////////////
@Override
public String getCommandName() {
return s_name;
}
public static String getResultObjectName() {
return "snapshot";
}
@Override
public long getEntityOwnerId() {
Volume volume = _entityMgr.findById(Volume.class, getVolumeId());
if (volume == null) {
throw new InvalidParameterValueException("Unable to find volume by id=" + volumeId);
}
Account account = _accountService.getAccount(volume.getAccountId());
//Can create templates for enabled projects/accounts only
if (account.getType() == Account.ACCOUNT_TYPE_PROJECT) {
Project project = _projectService.findByProjectAccountId(volume.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");
}
} else if (account.getState() == Account.State.disabled) {
throw new PermissionDeniedException("The owner of template is disabled: " + account);
}
return volume.getAccountId();
}
@Override
public String getEventType() {
return EventTypes.EVENT_SNAPSHOT_CREATE;
}
@Override
public String getEventDescription() {
return "creating snapshot for volume: " + getVolumeId();
}
@Override
public AsyncJob.Type getInstanceType() {
return AsyncJob.Type.Snapshot;
}
@Override
public void create() throws ResourceAllocationException {
Snapshot snapshot = _snapshotService.allocSnapshot(getVolumeId(), getPolicyId());
if (snapshot != null) {
this.setEntityId(snapshot.getId());
} else {
throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to create snapshot");
}
}
@Override
public void execute() {
UserContext.current().setEventDetails("Volume Id: "+getVolumeId());
Snapshot snapshot = _snapshotService.createSnapshot(getVolumeId(), getPolicyId(), getEntityId(), _accountService.getAccount(getEntityOwnerId()));
if (snapshot != null) {
SnapshotResponse response = _responseGenerator.createSnapshotResponse(snapshot);
response.setResponseName(getCommandName());
this.setResponseObject(response);
} else {
throw new ServerApiException(BaseCmd.INTERNAL_ERROR, "Failed to create snapshot due to an internal error creating snapshot for volume " + volumeId);
}
}
}