[GitHub] [cloudstack] sureshanaparti commented on a change in pull request #4395: support for data migration of incremental snaps on xen

[GitBox <gi...@apache.org>]

sureshanaparti commented on a change in pull request #4395:
URL: https://github.com/apache/cloudstack/pull/4395#discussion_r505352050



##########
File path: engine/storage/image/src/main/java/org/apache/cloudstack/storage/image/SecondaryStorageServiceImpl.java
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@@ -198,6 +204,39 @@ protected Void migrateDataCallBack(AsyncCallbackDispatcher<SecondaryStorageServi
         return null;
     }
 
+    private void updateDataObject(DataObject srcData, DataObject destData) {
+        if (destData instanceof SnapshotInfo) {
+            SnapshotDataStoreVO snapshotStore = snapshotStoreDao.findBySourceSnapshot(srcData.getId(), DataStoreRole.Image);
+            SnapshotDataStoreVO destSnapshotStore = snapshotStoreDao.findBySnapshot(srcData.getId(), DataStoreRole.Image);
+            if (snapshotStore != null && destSnapshotStore != null) {
+                destSnapshotStore.setPhysicalSize(snapshotStore.getPhysicalSize());
+                destSnapshotStore.setCreated(snapshotStore.getCreated());
+                if (snapshotStore.getParentSnapshotId() != destSnapshotStore.getParentSnapshotId()) {
+                    destSnapshotStore.setParentSnapshotId(snapshotStore.getParentSnapshotId());
+                }
+                snapshotStoreDao.update(destSnapshotStore.getId(), destSnapshotStore);
+            }
+        }
+
+        if (destData instanceof VolumeInfo) {
+            VolumeDataStoreVO srcVolume = volumeDataStoreDao.findByStoreVolume(srcData.getDataStore().getId(), srcData.getId());
+            VolumeDataStoreVO destVolume = volumeDataStoreDao.findByStoreVolume(destData.getDataStore().getId(), destData.getId());
+            if (srcVolume != null && destVolume != null) {
+                destVolume.setPhysicalSize(srcVolume.getPhysicalSize());
+                destVolume.setCreated(srcVolume.getCreated());
+                volumeDataStoreDao.update(destVolume.getId(), destVolume);
+            }
+        }
+
+        if (destData instanceof TemplateInfo) {

Review comment:
       @Pearl1594 better use if-else / switch-case. The control will come here even when `destData` is of type SnapshotInfo. If this method is being called for any other destData instance, better add a debug log for unsupported instance.




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