Create VmBackup earlier in HybridBackupCommand

When creation of a snapshot for the HybridBackup fails, we end up with a
null pointer exception.

2024-04-17 10:29:48,296+02 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-2) [76e81a20-4d1d-441b-8e6c-90f37889cd66] EVENT_ID: USER_FAILED_CREATE_SNAPSHOT(117), Failed to create Snapshot Auto-generated for Backup VM for VM xxxxx (User: admin@internal-authz).
2024-04-17 10:29:48,298+02 INFO  [org.ovirt.engine.core.bll.storage.backup.HybridBackupCommand] (default task-2) [76e81a20-4d1d-441b-8e6c-90f37889cd66] Change VM '73df70f5-09b0-4f1a-abd8-2d0b4cd5e8b2' backup 'null' phase from 'null' to 'FAILED'
2024-04-17 10:29:48,299+02 ERROR [org.ovirt.engine.core.bll.storage.backup.HybridBackupCommand] (default task-2) [76e81a20-4d1d-441b-8e6c-90f37889cd66] Command 'org.ovirt.engine.core.bll.storage.backup.HybridBackupCommand' failed: null
2024-04-17 10:29:48,299+02 ERROR [org.ovirt.engine.core.bll.storage.backup.HybridBackupCommand] (default task-2) [76e81a20-4d1d-441b-8e6c-90f37889cd66] Exception: java.lang.NullPointerException
	at org.ovirt.engine.core.dal//org.ovirt.engine.core.dao.VmBackupDaoImpl.update(VmBackupDaoImpl.java:90)
	at org.ovirt.engine.core.dal//org.ovirt.engine.core.dao.VmBackupDaoImpl.update(VmBackupDaoImpl.java:22)
	at deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.storage.backup.StartVmBackupCommand.updateVmBackupPhase(StartVmBackupCommand.java:632)
	at deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.storage.backup.HybridBackupCommand.executeCommand(HybridBackupCommand.java:118)
	at deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.CommandBase.executeWithoutTransaction(CommandBase.java:1174)
	at deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.CommandBase.executeActionInTransactionScope(CommandBase.java:1332)

This happens because VmBackupDaoImpl tries to save the BackupType into
the database (entity.getBackupType().getName()), but that value is still
null.
The BackupType is only set when calling createVmBackup.

But as we already have all the data except the snapshotId at the start
of the HybridBackup, we already call createVmBackup before creating the
snapshot and when the snapshot was created, we add it to the VmBackup
data.

This avoids the null getBackupType()

Signed-off-by: Jean-Louis Dupond <jean-louis@dupond.be>

backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/storage/backup/HybridBackupCommand.java

@@ -105,6 +105,8 @@ protected boolean validate() {
  @Override
  protected void executeCommand() {
  VmBackup vmBackup = getParameters().getVmBackup();
+ Guid vmBackupId = createVmBackup();
+ log.info("Created VmBackup entity '{}' for VM '{}'", vmBackupId, vmBackup.getVmId());
 
  Guid toCheckpointId = Guid.newGuid();
  ActionReturnValue returnValue = runInternalAction(
@@ -121,8 +123,7 @@ protected void executeCommand() {
 
  auditLog(AuditLogType.USER_CREATE_SNAPSHOT);
  Guid snapshotId = returnValue.getActionReturnValue();
- Guid vmBackupId = createVmBackup(snapshotId);
- log.info("Created VmBackup entity '{}' for VM '{}'", vmBackupId, vmBackup.getVmId());
+ setVmBackupSnapshot(snapshotId);
  getParameters().setAutoGeneratedSnapshotId(snapshotId);
  vmBackup.setDisks(getDisks());
  getParameters().setToCheckpointId(toCheckpointId);
@@ -325,7 +326,7 @@ private CommandContext createStepsContext(StepEnum step) {
  .withExecutionContext(ctx);
  }
 
- private Guid createVmBackup(Guid snapshotId) {
+ private Guid createVmBackup() {
  VmBackup vmBackup = getParameters().getVmBackup();
  Guid backupId = vmBackup.getId() != null ? vmBackup.getId() : getCommandId();
  vmBackup.setId(backupId);
@@ -334,10 +335,17 @@ private Guid createVmBackup(Guid snapshotId) {
  vmBackup.setCreationDate(now);
  vmBackup.setModificationDate(now);
  vmBackup.setBackupType(VmBackupType.Hybrid);
- vmBackup.setSnapshotId(snapshotId);
  getParameters().setVmBackup(vmBackup);
  vmBackupDao.save(vmBackup);
  persistCommandIfNeeded();
  return vmBackup.getId();
  }
+
+ private void setVmBackupSnapshot(Guid snapshotId) {
+ VmBackup vmBackup = getParameters().getVmBackup();
+ vmBackup.setSnapshotId(snapshotId);
+ getParameters().setVmBackup(vmBackup);
+ vmBackupDao.save(vmBackup);
+ persistCommandIfNeeded();
+ }
 }