/// <exception cref="System.IO.IOException"/>
internal static Org.Apache.Hadoop.Hdfs.Server.Namenode.Snapshot.Snapshot Read(DataInput
@in, FSImageFormat.Loader loader)
{
int snapshotId = @in.ReadInt();
INode root = loader.LoadINodeWithLocalName(false, @in, false);
return(new Org.Apache.Hadoop.Hdfs.Server.Namenode.Snapshot.Snapshot(snapshotId, root
.AsDirectory(), null));
}
/// <exception cref="System.IO.IOException"/>
public virtual INodeReference.WithCount LoadINodeReferenceWithCount(bool isSnapshotINode
, DataInput @in, FSImageFormat.Loader loader)
{
bool firstReferred = @in.ReadBoolean();
INodeReference.WithCount withCount;
if (firstReferred)
{
INode referred = loader.LoadINodeWithLocalName(isSnapshotINode, @in, true);
withCount = new INodeReference.WithCount(null, referred);
referenceMap[withCount.GetId()] = withCount;
}
else
{
long id = @in.ReadLong();
withCount = referenceMap[id];
}
return(withCount);
}
/// <summary>Load the deleted list from the fsimage.</summary>
/// <param name="parent">The directory that the deleted list belongs to.</param>
/// <param name="createdList">
/// The created list associated with the deleted list in
/// the same Diff.
/// </param>
/// <param name="in">
/// The
/// <see cref="System.IO.DataInput"/>
/// to read.
/// </param>
/// <param name="loader">
/// The
/// <see cref="Loader"/>
/// instance.
/// </param>
/// <returns>The deleted list.</returns>
/// <exception cref="System.IO.IOException"/>
private static IList <INode> LoadDeletedList(INodeDirectory parent, IList <INode> createdList
, DataInput @in, FSImageFormat.Loader loader)
{
int deletedSize = @in.ReadInt();
IList <INode> deletedList = new AList <INode>(deletedSize);
for (int i = 0; i < deletedSize; i++)
{
INode deleted = loader.LoadINodeWithLocalName(true, @in, true);
deletedList.AddItem(deleted);
// set parent: the parent field of an INode in the deleted list is not
// useful, but set the parent here to be consistent with the original
// fsdir tree.
deleted.SetParent(parent);
if (deleted.IsFile())
{
loader.UpdateBlocksMap(deleted.AsFile());
}
}
return(deletedList);
}