/// <summary>Save one inode's attributes to the image.</summary>
/// <exception cref="System.IO.IOException"/>
public static void SaveINode2Image(INode node, DataOutput @out, bool writeUnderConstruction
, SnapshotFSImageFormat.ReferenceMap referenceMap)
{
if (node.IsReference())
{
WriteINodeReference(node.AsReference(), @out, writeUnderConstruction, referenceMap
);
}
else
{
if (node.IsDirectory())
{
WriteINodeDirectory(node.AsDirectory(), @out);
}
else
{
if (node.IsSymlink())
{
WriteINodeSymlink(node.AsSymlink(), @out);
}
else
{
if (node.IsFile())
{
WriteINodeFile(node.AsFile(), @out, writeUnderConstruction);
}
}
}
}
}
/// <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
);
}
