private String queueCommand(BaseCmd cmdObj, Map<String, String> params) throws Exception {
UserContext ctx = UserContext.current();
Long callerUserId = ctx.getCallerUserId();
Account caller = ctx.getCaller();
// Queue command based on Cmd super class:
// BaseCmd: cmd is dispatched to ApiDispatcher, executed, serialized and returned.
// BaseAsyncCreateCmd: cmd params are processed and create() is called, then same workflow as
// BaseAsyncCmd.
// BaseAsyncCmd: cmd is processed and submitted as an AsyncJob, job related info is serialized
// and returned.
if (cmdObj instanceof BaseAsyncCmd) {
Long objectId = null;
String objectUuid = null;
if (cmdObj instanceof BaseAsyncCreateCmd) {
BaseAsyncCreateCmd createCmd = (BaseAsyncCreateCmd) cmdObj;
_dispatcher.dispatchCreateCmd(createCmd, params);
objectId = createCmd.getEntityId();
objectUuid = createCmd.getEntityUuid();
params.put("id", objectId.toString());
} else {
ApiDispatcher.processParameters(cmdObj, params);
}
BaseAsyncCmd asyncCmd = (BaseAsyncCmd) cmdObj;
if (callerUserId != null) {
params.put("ctxUserId", callerUserId.toString());
}
if (caller != null) {
params.put("ctxAccountId", String.valueOf(caller.getId()));
}
long startEventId = ctx.getStartEventId();
asyncCmd.setStartEventId(startEventId);
// save the scheduled event
Long eventId =
EventUtils.saveScheduledEvent(
(callerUserId == null) ? User.UID_SYSTEM : callerUserId,
asyncCmd.getEntityOwnerId(),
asyncCmd.getEventType(),
asyncCmd.getEventDescription(),
startEventId);
if (startEventId == 0) {
// There was no create event before, set current event id as start eventId
startEventId = eventId;
}
params.put("ctxStartEventId", String.valueOf(startEventId));
ctx.setAccountId(asyncCmd.getEntityOwnerId());
Long instanceId = (objectId == null) ? asyncCmd.getInstanceId() : objectId;
AsyncJobVO job =
new AsyncJobVO(
callerUserId,
caller.getId(),
cmdObj.getClass().getName(),
ApiGsonHelper.getBuilder().create().toJson(params),
instanceId,
asyncCmd.getInstanceType());
long jobId = _asyncMgr.submitAsyncJob(job);
if (jobId == 0L) {
String errorMsg = "Unable to schedule async job for command " + job.getCmd();
s_logger.warn(errorMsg);
throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, errorMsg);
}
if (objectId != null) {
String objUuid = (objectUuid == null) ? objectId.toString() : objectUuid;
return ((BaseAsyncCreateCmd) asyncCmd).getResponse(jobId, objUuid);
}
SerializationContext.current().setUuidTranslation(true);
return ApiResponseSerializer.toSerializedString(
asyncCmd.getResponse(jobId), asyncCmd.getResponseType());
} else {
_dispatcher.dispatch(cmdObj, params);
// if the command is of the listXXXCommand, we will need to also return the
// the job id and status if possible
// For those listXXXCommand which we have already created DB views, this step is not needed
// since async job is joined in their db views.
if (cmdObj instanceof BaseListCmd
&& !(cmdObj instanceof ListVMsCmd)
&& !(cmdObj instanceof ListRoutersCmd)
&& !(cmdObj instanceof ListSecurityGroupsCmd)
&& !(cmdObj instanceof ListTagsCmd)
&& !(cmdObj instanceof ListEventsCmd)
&& !(cmdObj instanceof ListVMGroupsCmd)
&& !(cmdObj instanceof ListProjectsCmd)
&& !(cmdObj instanceof ListProjectAccountsCmd)
&& !(cmdObj instanceof ListProjectInvitationsCmd)
&& !(cmdObj instanceof ListHostsCmd)
&& !(cmdObj instanceof ListVolumesCmd)
&& !(cmdObj instanceof ListUsersCmd)
&& !(cmdObj instanceof ListAccountsCmd)
&& !(cmdObj instanceof ListStoragePoolsCmd)) {
buildAsyncListResponse((BaseListCmd) cmdObj, caller);
}
SerializationContext.current().setUuidTranslation(true);
return ApiResponseSerializer.toSerializedString(
(ResponseObject) cmdObj.getResponseObject(), cmdObj.getResponseType());
}
}
@DB
protected void scheduleSnapshots() {
String displayTime = DateUtil.displayDateInTimezone(DateUtil.GMT_TIMEZONE, _currentTimestamp);
s_logger.debug("Snapshot scheduler.poll is being called at " + displayTime);
List<SnapshotScheduleVO> snapshotsToBeExecuted =
_snapshotScheduleDao.getSchedulesToExecute(_currentTimestamp);
s_logger.debug(
"Got " + snapshotsToBeExecuted.size() + " snapshots to be executed at " + displayTime);
// This is done for recurring snapshots, which are executed by the system automatically
// Hence set user id to that of system
long userId = 1;
for (SnapshotScheduleVO snapshotToBeExecuted : snapshotsToBeExecuted) {
long policyId = snapshotToBeExecuted.getPolicyId();
long volumeId = snapshotToBeExecuted.getVolumeId();
VolumeVO volume = _volsDao.findById(volumeId);
if (volume.getPoolId() == null) {
// this volume is not attached
continue;
}
if (_snapshotPolicyDao.findById(policyId) == null) {
_snapshotScheduleDao.remove(snapshotToBeExecuted.getId());
}
if (s_logger.isDebugEnabled()) {
Date scheduledTimestamp = snapshotToBeExecuted.getScheduledTimestamp();
displayTime = DateUtil.displayDateInTimezone(DateUtil.GMT_TIMEZONE, scheduledTimestamp);
s_logger.debug(
"Scheduling 1 snapshot for volume "
+ volumeId
+ " for schedule id: "
+ snapshotToBeExecuted.getId()
+ " at "
+ displayTime);
}
long snapshotScheId = snapshotToBeExecuted.getId();
SnapshotScheduleVO tmpSnapshotScheduleVO = null;
try {
tmpSnapshotScheduleVO = _snapshotScheduleDao.acquireInLockTable(snapshotScheId);
Long eventId =
EventUtils.saveScheduledEvent(
User.UID_SYSTEM,
Account.ACCOUNT_ID_SYSTEM,
EventTypes.EVENT_SNAPSHOT_CREATE,
"creating snapshot for volume Id:" + volumeId,
0);
Map<String, String> params = new HashMap<String, String>();
params.put("volumeid", "" + volumeId);
params.put("policyid", "" + policyId);
params.put("ctxUserId", "1");
params.put("ctxAccountId", "1");
params.put("ctxStartEventId", String.valueOf(eventId));
CreateSnapshotCmd cmd = new CreateSnapshotCmd();
ApiDispatcher.getInstance().dispatchCreateCmd(cmd, params);
params.put("id", "" + cmd.getEntityId());
params.put("ctxStartEventId", "1");
AsyncJobVO job = new AsyncJobVO();
job.setUserId(userId);
// Just have SYSTEM own the job for now. Users won't be able to see this job, but
// it's an internal job so probably not a huge deal.
job.setAccountId(1L);
job.setCmd(CreateSnapshotCmd.class.getName());
job.setInstanceId(cmd.getEntityId());
job.setCmdInfo(GsonHelper.getBuilder().create().toJson(params));
long jobId = _asyncMgr.submitAsyncJob(job);
tmpSnapshotScheduleVO.setAsyncJobId(jobId);
_snapshotScheduleDao.update(snapshotScheId, tmpSnapshotScheduleVO);
} finally {
if (tmpSnapshotScheduleVO != null) {
_snapshotScheduleDao.releaseFromLockTable(snapshotScheId);
}
}
}
}
