/// <summary>
/// Serialize a
/// <see cref="INodeReference"/>
/// node
/// </summary>
/// <exception cref="System.IO.IOException"/>
private static void WriteINodeReference(INodeReference @ref, DataOutput @out, bool
writeUnderConstruction, SnapshotFSImageFormat.ReferenceMap referenceMap)
{
WriteLocalName(@ref, @out);
@out.WriteLong(@ref.GetId());
@out.WriteShort(0);
// replication
@out.WriteLong(0);
// modification time
@out.WriteLong(0);
// access time
@out.WriteLong(0);
// preferred block size
@out.WriteInt(-3);
// # of blocks
bool isWithName = @ref is INodeReference.WithName;
@out.WriteBoolean(isWithName);
if (!isWithName)
{
Preconditions.CheckState(@ref is INodeReference.DstReference);
// dst snapshot id
@out.WriteInt(((INodeReference.DstReference)@ref).GetDstSnapshotId());
}
else
{
@out.WriteInt(((INodeReference.WithName)@ref).GetLastSnapshotId());
}
INodeReference.WithCount withCount = (INodeReference.WithCount)@ref.GetReferredINode
();
referenceMap.WriteINodeReferenceWithCount(withCount, @out, writeUnderConstruction
);
}
/// <exception cref="Org.Apache.Hadoop.Hdfs.Protocol.QuotaExceededException"/>
internal virtual void RestoreDst(BlockStoragePolicySuite bsps)
{
Preconditions.CheckState(oldDstChild != null);
INodeDirectory dstParent = dstParentIIP.GetLastINode().AsDirectory();
if (dstParent.IsWithSnapshot())
{
dstParent.UndoRename4DstParent(bsps, oldDstChild, dstIIP.GetLatestSnapshotId());
}
else
{
fsd.AddLastINodeNoQuotaCheck(dstParentIIP, oldDstChild);
}
if (oldDstChild != null && oldDstChild.IsReference())
{
INodeReference removedDstRef = oldDstChild.AsReference();
INodeReference.WithCount wc = (INodeReference.WithCount)removedDstRef.GetReferredINode
().AsReference();
wc.AddReference(removedDstRef);
}
}