/**
* Validate whether a disk can be shareable. Disk can be shareable if it is not based on qcow FS,
* which means it should not be based on a template image with thin provisioning, it also should
* not contain snapshots and it is not bootable.
*
* @return Indication whether the disk can be shared or not.
*/
protected boolean validateShareableDisk() {
if (DiskStorageType.LUN == _oldDisk.getDiskStorageType()) {
return true;
}
boolean isDiskUpdatedToShareable = getParameters().getDiskInfo().isShareable();
boolean isDiskShareable = _oldDisk.isShareable();
// Check if VM is not during snapshot.
if (getSnapshotDao().exists(getVmId(), SnapshotStatus.IN_PREVIEW)) {
addCanDoActionMessage(VdcBllMessages.ACTION_TYPE_FAILED_VM_IN_PREVIEW);
return false;
}
// If user want to update the disk to be shareable then update the vm snapshot id to be null.
if (!isDiskShareable && isDiskUpdatedToShareable) {
List<DiskImage> diskImageList =
getDiskImageDao().getAllSnapshotsForImageGroup(_oldDisk.getId());
// If disk image list is more then one then we assume that it has a snapshot, since one image
// is the active
// disk and all the other images are the snapshots.
if ((diskImageList.size() > 1) || !Guid.Empty.equals(((DiskImage) _oldDisk).getit_guid())) {
addCanDoActionMessage(VdcBllMessages.SHAREABLE_DISK_IS_NOT_SUPPORTED_FOR_DISK);
return false;
}
if (!isVersionSupportedForShareable(
_oldDisk,
getStoragePoolDAO()
.get(getVm().getstorage_pool_id())
.getcompatibility_version()
.getValue())) {
addCanDoActionMessage(VdcBllMessages.ACTION_NOT_SUPPORTED_FOR_CLUSTER_POOL_LEVEL);
return false;
}
DiskImage diskImage = (DiskImage) getParameters().getDiskInfo();
if (!isVolumeFormatSupportedForShareable(diskImage.getvolume_format())) {
addCanDoActionMessage(VdcBllMessages.SHAREABLE_DISK_IS_NOT_SUPPORTED_BY_VOLUME_FORMAT);
return false;
}
diskImage.setvm_snapshot_id(null);
} else if (isDiskShareable && !isDiskUpdatedToShareable) {
if (getVmDAO().getVmsListForDisk(_oldDisk.getId()).size() > 1) {
addCanDoActionMessage(VdcBllMessages.DISK_IS_ALREADY_SHARED_BETWEEN_VMS);
return false;
}
// If disk is not floating, then update its vm snapshot id to the active VM snapshot.
((DiskImage) _oldDisk)
.setvm_snapshot_id(
DbFacade.getInstance()
.getSnapshotDao()
.getId(getVmId(), SnapshotType.ACTIVE)
.getValue());
}
return true;
}
@Override
protected boolean canDoAction() {
boolean retValue = isVmExist();
if (retValue) {
if (!isDiskExist(_oldDisk)) {
return false;
}
List<VM> listVms = getVmDAO().getForDisk(_oldDisk.getId()).get(Boolean.TRUE);
buidSharedLockMap(listVms);
buidExclusiveLockMap(listVms);
acquireLockInternal();
// Check if all VMs are in status down.
if (listVms != null && !listVms.isEmpty()) {
for (VM vm : listVms) {
if (vm.getstatus() != VMStatus.Down) {
addCanDoActionMessage(VdcBllMessages.ACTION_TYPE_FAILED_VM_IS_NOT_DOWN);
return false;
}
}
}
retValue = checkCanPerformRegularUpdate();
}
return retValue;
}
private boolean checkCanPerformRegularUpdate() {
boolean retValue = true;
if (_oldDisk.getDiskInterface() != getParameters().getDiskInfo().getDiskInterface()) {
List<VmNetworkInterface> allVmInterfaces =
DbFacade.getInstance().getVmNetworkInterfaceDao().getAllForVm(getVmId());
List<Disk> allVmDisks = getDiskDao().getAllForVm(getVmId());
allVmDisks.removeAll(
LinqUtils.filter(
allVmDisks,
new Predicate<Disk>() {
@Override
public boolean eval(Disk o) {
return o.getId().equals(_oldDisk.getId());
}
}));
allVmDisks.add(getParameters().getDiskInfo());
if (!checkPciAndIdeLimit(
getVm().getnum_of_monitors(),
allVmInterfaces,
allVmDisks,
getReturnValue().getCanDoActionMessages())) {
retValue = false;
}
}
// Validate update boot disk.
if (retValue && getParameters().getDiskInfo().isBoot()) {
VmHandler.updateDisksFromDb(getVm());
for (Disk disk : getVm().getDiskMap().values()) {
if (disk.isBoot() && !disk.getId().equals(_oldDisk.getId())) {
retValue = false;
addCanDoActionMessage(VdcBllMessages.ACTION_TYPE_FAILED_DISK_BOOT_IN_USE);
getReturnValue()
.getCanDoActionMessages()
.add(String.format("$DiskName %1$s", disk.getDiskAlias()));
break;
}
}
}
// Set disk alias name in the disk retrieved from the parameters.
ImagesHandler.setDiskAlias(getParameters().getDiskInfo(), getVm());
return retValue && validateShareableDisk();
}
@Override
public List<PermissionSubject> getPermissionCheckSubjects() {
if (listPermissionSubjects == null) {
listPermissionSubjects = new ArrayList<PermissionSubject>();
Guid diskId = _oldDisk == null ? null : _oldDisk.getId();
listPermissionSubjects.add(
new PermissionSubject(diskId, VdcObjectType.Disk, ActionGroup.EDIT_DISK_PROPERTIES));
}
return listPermissionSubjects;
}
/**
* Synchronize the VM's Disks with the images from the snapshot:<br>
*
* <ul>
* <li>Existing disks are updated.
* <li>Disks that don't exist anymore get re-added.
* <ul>
* <li>If the image is still in the DB, the disk is linked to it.
* <li>If the image is not in the DB anymore, the disk will be marked as "broken"
* </ul>
* </ul>
*
* @param vmId The VM ID is needed to re-add disks.
* @param snapshotId The snapshot ID is used to find only the VM disks at the time.
* @param disksFromSnapshot The disks that existed in the snapshot.
*/
protected void synchronizeDisksFromSnapshot(
Guid vmId, Guid snapshotId, Guid activeSnapshotId, List<DiskImage> disksFromSnapshot) {
List<Guid> diskIdsFromSnapshot = new ArrayList<Guid>();
// Sync disks that exist or existed in the snapshot.
for (DiskImage diskImage : disksFromSnapshot) {
diskIdsFromSnapshot.add(diskImage.getimage_group_id());
Disk disk = diskImage.getDisk();
if (getDiskDao().exists(disk.getId())) {
getDiskDao().update(disk);
} else {
// If can't find the image, insert it as illegal so that it can't be used and make the
// device unplugged.
if (getDiskImageDao().getSnapshotById(diskImage.getId()) == null) {
diskImage.setimageStatus(ImageStatus.ILLEGAL);
diskImage.setvm_snapshot_id(activeSnapshotId);
ImagesHandler.addImage(
diskImage,
true,
new image_storage_domain_map(diskImage.getId(), diskImage.getstorage_ids().get(0)));
}
ImagesHandler.addDiskToVm(disk, vmId);
}
}
// Remove all disks that didn't exist in the snapshot.
for (VmDevice vmDevice :
getVmDeviceDao()
.getVmDeviceByVmIdTypeAndDevice(
vmId, VmDeviceType.DISK.getName(), VmDeviceType.DISK.getName())) {
if (!diskIdsFromSnapshot.contains(vmDevice.getDeviceId())) {
getDiskDao().remove(vmDevice.getDeviceId());
getVmDeviceDao().remove(vmDevice.getId());
}
}
}
@Override
protected <T> boolean matchEntity(
org.ovirt.engine.core.common.businessentities.Disk entity, T id) {
return id != null && (id.equals(entity.getId()));
}
@Override
public VdcActionParametersBase getParameters(
Disk incoming, org.ovirt.engine.core.common.businessentities.Disk entity) {
return new UpdateVmDiskParameters(parentId, entity.getId(), map(incoming, entity));
}
@Override
public String toString() {
return String.format("%s, volumeId = %s", super.toString(), disk.getId());
}