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From jburwell <...@git.apache.org>
Subject [GitHub] cloudstack pull request: Taking fast and efficient volume snapshot...
Date Thu, 12 May 2016 22:56:08 GMT
Github user jburwell commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/1403#discussion_r63110957
  
    --- Diff: engine/storage/datamotion/src/org/apache/cloudstack/storage/motion/StorageSystemDataMotionStrategy.java
---
    @@ -132,31 +171,52 @@ public void copyAsync(DataObject srcData, DataObject destData, Host
destHost, As
     
                 validate(snapshotInfo);
     
    -            boolean canHandleSrc = canHandle(srcData.getDataStore());
    +            boolean canHandleSrc = canHandle(srcData);
     
                 if (canHandleSrc && destData instanceof TemplateInfo &&
                         (destData.getDataStore().getRole() == DataStoreRole.Image || destData.getDataStore().getRole()
== DataStoreRole.ImageCache)) {
                     handleCreateTemplateFromSnapshot(snapshotInfo, (TemplateInfo)destData,
callback);
    +
                     return;
                 }
     
                 if (destData instanceof VolumeInfo) {
                     VolumeInfo volumeInfo = (VolumeInfo)destData;
    -                boolean canHandleDest = canHandle(destData.getDataStore());
    +
    +                boolean canHandleDest = canHandle(destData);
     
                     if (canHandleSrc && canHandleDest) {
    -                    handleCreateVolumeFromSnapshotBothOnStorageSystem(snapshotInfo, volumeInfo,
callback);
    -                    return;
    +                    if (snapshotInfo.getDataStore().getId() == volumeInfo.getDataStore().getId())
{
    +                        handleCreateVolumeFromSnapshotBothOnStorageSystem(snapshotInfo,
volumeInfo, callback);
    +                        return;
    +                    }
    +                    else {
    +                        throw new UnsupportedOperationException("This operation is not
supported (DataStoreCapabilities.STORAGE_SYSTEM_SNAPSHOT " +
    +                                "not supported by source or destination storage plug-in).");
    +                    }
                     }
    +
                     if (canHandleSrc) {
                         throw new UnsupportedOperationException("This operation is not supported
(DataStoreCapabilities.STORAGE_SYSTEM_SNAPSHOT " +
                                 "not supported by destination storage plug-in).");
                     }
    +
                     if (canHandleDest) {
                         throw new UnsupportedOperationException("This operation is not supported
(DataStoreCapabilities.STORAGE_SYSTEM_SNAPSHOT " +
                                 "not supported by source storage plug-in).");
                     }
                 }
    +        } else if (srcData instanceof TemplateInfo && destData instanceof VolumeInfo)
{
    +            boolean canHandleSrc = canHandle(srcData);
    +
    +            if (!canHandleSrc) {
    +                throw new UnsupportedOperationException("This operation is not supported
(DataStoreCapabilities.STORAGE_CAN_CREATE_VOLUME_FROM_VOLUME " +
    --- End diff --
    
    @mike-tutkowski is it possible to add this information to the log message?


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