Examples with CreateObjectAnswer com.cloud.storage.command.CreateObjectAnswer used on opensource projects

Example 6 with CreateObjectAnswer

use of com.cloud.storage.command.CreateObjectAnswer in project cosmic by MissionCriticalCloud.

the class XenServerStorageProcessor method createSnapshot.

@Override
public Answer createSnapshot(final CreateObjectCommand cmd) {
    final Connection conn = hypervisorResource.getConnection();
    final SnapshotObjectTO snapshotTO = (SnapshotObjectTO) cmd.getData();
    final long snapshotId = snapshotTO.getId();
    final String snapshotName = snapshotTO.getName();
    String details = "create snapshot operation Failed for snapshotId: " + snapshotId;
    String snapshotUUID = null;
    try {
        final String volumeUUID = snapshotTO.getVolume().getPath();
        final VDI volume = VDI.getByUuid(conn, volumeUUID);
        final VDI snapshot = volume.snapshot(conn, new HashMap<>());
        if (snapshotName != null) {
            snapshot.setNameLabel(conn, snapshotName);
        }
        snapshotUUID = snapshot.getUuid(conn);
        final String preSnapshotUUID = snapshotTO.getParentSnapshotPath();
        // check if it is a empty snapshot
        if (preSnapshotUUID != null) {
            final SR sr = volume.getSR(conn);
            final String srUUID = sr.getUuid(conn);
            final String type = sr.getType(conn);
            final Boolean isISCSI = IsISCSI(type);
            final String snapshotParentUUID = getVhdParent(conn, srUUID, snapshotUUID, isISCSI);
            try {
                final String preSnapshotParentUUID = getVhdParent(conn, srUUID, preSnapshotUUID, isISCSI);
                if (snapshotParentUUID != null && snapshotParentUUID.equals(preSnapshotParentUUID)) {
                    // this is empty snapshot, remove it
                    snapshot.destroy(conn);
                    snapshotUUID = preSnapshotUUID;
                }
            } catch (final Exception e) {
                s_logger.debug("Failed to get parent snapshot", e);
            }
        }
        final SnapshotObjectTO newSnapshot = new SnapshotObjectTO();
        newSnapshot.setPath(snapshotUUID);
        return new CreateObjectAnswer(newSnapshot);
    } catch (final XenAPIException e) {
        details += ", reason: " + e.toString();
        s_logger.warn(details, e);
    } catch (final Exception e) {
        details += ", reason: " + e.toString();
        s_logger.warn(details, e);
    }
    return new CreateObjectAnswer(details);
}

Example 7 with CreateObjectAnswer

use of com.cloud.storage.command.CreateObjectAnswer in project cosmic by MissionCriticalCloud.

the class XenserverSnapshotStrategy method backupSnapshot.

@Override
public SnapshotInfo backupSnapshot(final SnapshotInfo snapshot) {
    final SnapshotInfo parentSnapshot = snapshot.getParent();
    if (parentSnapshot != null && snapshot.getPath().equalsIgnoreCase(parentSnapshot.getPath())) {
        s_logger.debug("backup an empty snapshot");
        // don't need to backup this snapshot
        final SnapshotDataStoreVO parentSnapshotOnBackupStore = snapshotStoreDao.findBySnapshot(parentSnapshot.getId(), DataStoreRole.Image);
        if (parentSnapshotOnBackupStore != null && parentSnapshotOnBackupStore.getState() == State.Ready) {
            final DataStore store = dataStoreMgr.getDataStore(parentSnapshotOnBackupStore.getDataStoreId(), parentSnapshotOnBackupStore.getRole());
            final SnapshotInfo snapshotOnImageStore = (SnapshotInfo) store.create(snapshot);
            snapshotOnImageStore.processEvent(Event.CreateOnlyRequested);
            final SnapshotObjectTO snapTO = new SnapshotObjectTO();
            snapTO.setPath(parentSnapshotOnBackupStore.getInstallPath());
            final CreateObjectAnswer createSnapshotAnswer = new CreateObjectAnswer(snapTO);
            snapshotOnImageStore.processEvent(Event.OperationSuccessed, createSnapshotAnswer);
            final SnapshotObject snapObj = (SnapshotObject) snapshot;
            try {
                snapObj.processEvent(Snapshot.Event.OperationNotPerformed);
            } catch (final NoTransitionException e) {
                s_logger.debug("Failed to change state: " + snapshot.getId() + ": " + e.toString());
                throw new CloudRuntimeException(e.toString());
            }
            return snapshotDataFactory.getSnapshot(snapObj.getId(), store);
        } else {
            s_logger.debug("parent snapshot hasn't been backed up yet");
        }
    }
    // determine full snapshot backup or not
    boolean fullBackup = true;
    SnapshotDataStoreVO parentSnapshotOnBackupStore = snapshotStoreDao.findLatestSnapshotForVolume(snapshot.getVolumeId(), DataStoreRole.Image);
    final SnapshotDataStoreVO parentSnapshotOnPrimaryStore = snapshotStoreDao.findLatestSnapshotForVolume(snapshot.getVolumeId(), DataStoreRole.Primary);
    final HypervisorType hypervisorType = snapshot.getBaseVolume().getHypervisorType();
    if (parentSnapshotOnPrimaryStore != null && parentSnapshotOnBackupStore != null && hypervisorType == Hypervisor.HypervisorType.XenServer) {
        // CS does incremental backup
        // only for XenServer
        // In case of volume migration from one pool to other pool, CS should take full snapshot to avoid any issues with delta chain,
        // to check if this is a migrated volume, compare the current pool id of volume and store_id of oldest snapshot on primary for this volume.
        // Why oldest? Because at this point CS has two snapshot on primary entries for same volume, one with old pool_id and other one with
        // current pool id. So, verify and if volume found to be migrated, delete snapshot entry with previous pool store_id.
        final SnapshotDataStoreVO oldestSnapshotOnPrimary = snapshotStoreDao.findOldestSnapshotForVolume(snapshot.getVolumeId(), DataStoreRole.Primary);
        final VolumeVO volume = volumeDao.findById(snapshot.getVolumeId());
        if (oldestSnapshotOnPrimary != null) {
            if (oldestSnapshotOnPrimary.getDataStoreId() == volume.getPoolId()) {
                final int _deltaSnapshotMax = NumbersUtil.parseInt(configDao.getValue("snapshot.delta.max"), SnapshotManager.DELTAMAX);
                final int deltaSnap = _deltaSnapshotMax;
                int i;
                for (i = 1; i < deltaSnap; i++) {
                    final Long prevBackupId = parentSnapshotOnBackupStore.getParentSnapshotId();
                    if (prevBackupId == 0) {
                        break;
                    }
                    parentSnapshotOnBackupStore = snapshotStoreDao.findBySnapshot(prevBackupId, DataStoreRole.Image);
                    if (parentSnapshotOnBackupStore == null) {
                        break;
                    }
                }
                if (i >= deltaSnap) {
                    fullBackup = true;
                } else {
                    fullBackup = false;
                }
            } else {
                // if there is an snapshot entry for previousPool(primary storage) of migrated volume, delete it becasue CS created one more snapshot entry for current pool
                snapshotStoreDao.remove(oldestSnapshotOnPrimary.getId());
            }
        }
    }
    snapshot.addPayload(fullBackup);
    return snapshotSvr.backupSnapshot(snapshot);
}

Example 8 with CreateObjectAnswer

use of com.cloud.storage.command.CreateObjectAnswer in project cosmic by MissionCriticalCloud.

the class VolumeObject method processEventOnly.

@Override
public void processEventOnly(final ObjectInDataStoreStateMachine.Event event, final Answer answer) {
    try {
        if (dataStore.getRole() == DataStoreRole.Primary) {
            if (answer instanceof CopyCmdAnswer) {
                final CopyCmdAnswer cpyAnswer = (CopyCmdAnswer) answer;
                final VolumeVO vol = volumeDao.findById(getId());
                final VolumeObjectTO newVol = (VolumeObjectTO) cpyAnswer.getNewData();
                vol.setPath(newVol.getPath());
                if (newVol.getSize() != null) {
                    vol.setSize(newVol.getSize());
                }
                vol.setPoolId(getDataStore().getId());
                volumeDao.update(vol.getId(), vol);
            } else if (answer instanceof CreateObjectAnswer) {
                final CreateObjectAnswer createAnswer = (CreateObjectAnswer) answer;
                final VolumeObjectTO newVol = (VolumeObjectTO) createAnswer.getData();
                final VolumeVO vol = volumeDao.findById(getId());
                vol.setPath(newVol.getPath());
                if (newVol.getSize() != null) {
                    vol.setSize(newVol.getSize());
                }
                vol.setPoolId(getDataStore().getId());
                volumeDao.update(vol.getId(), vol);
            }
        } else {
            // image store or imageCache store
            if (answer instanceof DownloadAnswer) {
                final DownloadAnswer dwdAnswer = (DownloadAnswer) answer;
                final VolumeDataStoreVO volStore = volumeStoreDao.findByStoreVolume(dataStore.getId(), getId());
                volStore.setInstallPath(dwdAnswer.getInstallPath());
                volStore.setChecksum(dwdAnswer.getCheckSum());
                volumeStoreDao.update(volStore.getId(), volStore);
            } else if (answer instanceof CopyCmdAnswer) {
                final CopyCmdAnswer cpyAnswer = (CopyCmdAnswer) answer;
                final VolumeDataStoreVO volStore = volumeStoreDao.findByStoreVolume(dataStore.getId(), getId());
                final VolumeObjectTO newVol = (VolumeObjectTO) cpyAnswer.getNewData();
                volStore.setInstallPath(newVol.getPath());
                if (newVol.getSize() != null) {
                    volStore.setSize(newVol.getSize());
                }
                volumeStoreDao.update(volStore.getId(), volStore);
            }
        }
    } catch (final RuntimeException ex) {
        if (event == ObjectInDataStoreStateMachine.Event.OperationFailed) {
            objectInStoreMgr.deleteIfNotReady(this);
        }
        throw ex;
    }
    this.processEventOnly(event);
}