/// <summary>Extend a given INodesInPath with a child INode.</summary>
/// <remarks>
/// Extend a given INodesInPath with a child INode. The child INode will be
/// appended to the end of the new INodesInPath.
/// </remarks>
public static Org.Apache.Hadoop.Hdfs.Server.Namenode.INodesInPath Append(Org.Apache.Hadoop.Hdfs.Server.Namenode.INodesInPath
iip, INode child, byte[] childName)
{
Preconditions.CheckArgument(!iip.isSnapshot && iip.Length() > 0);
Preconditions.CheckArgument(iip.GetLastINode() != null && iip.GetLastINode().IsDirectory
());
INode[] inodes = new INode[iip.Length() + 1];
System.Array.Copy(iip.inodes, 0, inodes, 0, inodes.Length - 1);
inodes[inodes.Length - 1] = child;
byte[][] path = new byte[iip.path.Length + 1][];
System.Array.Copy(iip.path, 0, path, 0, path.Length - 1);
path[path.Length - 1] = childName;
return(new Org.Apache.Hadoop.Hdfs.Server.Namenode.INodesInPath(inodes, path, false
, iip.snapshotId));
}
/// <summary>Replace an inode of the given INodesInPath in the given position.</summary>
/// <remarks>
/// Replace an inode of the given INodesInPath in the given position. We do a
/// deep copy of the INode array.
/// </remarks>
/// <param name="pos">the position of the replacement</param>
/// <param name="inode">the new inode</param>
/// <returns>a new INodesInPath instance</returns>
public static Org.Apache.Hadoop.Hdfs.Server.Namenode.INodesInPath Replace(Org.Apache.Hadoop.Hdfs.Server.Namenode.INodesInPath
iip, int pos, INode inode)
{
Preconditions.CheckArgument(iip.Length() > 0 && pos > 0 && pos < iip.Length());
// no for root
if (iip.GetINode(pos) == null)
{
Preconditions.CheckState(iip.GetINode(pos - 1) != null);
}
INode[] inodes = new INode[iip.inodes.Length];
System.Array.Copy(iip.inodes, 0, inodes, 0, inodes.Length);
inodes[pos] = inode;
return(new Org.Apache.Hadoop.Hdfs.Server.Namenode.INodesInPath(inodes, iip.path,
iip.isSnapshot, iip.snapshotId));
}
