Beispiel #1
0
        /// <exception cref="System.IO.IOException"/>
        internal static AclStatus GetAclStatus(FSDirectory fsd, string src)
        {
            CheckAclsConfigFlag(fsd);
            FSPermissionChecker pc = fsd.GetPermissionChecker();

            byte[][] pathComponents = FSDirectory.GetPathComponentsForReservedPath(src);
            src = fsd.ResolvePath(pc, src, pathComponents);
            string srcs = FSDirectory.NormalizePath(src);

            fsd.ReadLock();
            try
            {
                // There is no real inode for the path ending in ".snapshot", so return a
                // non-null, unpopulated AclStatus.  This is similar to getFileInfo.
                if (srcs.EndsWith(HdfsConstants.SeparatorDotSnapshotDir) && fsd.GetINode4DotSnapshot
                        (srcs) != null)
                {
                    return(new AclStatus.Builder().Owner(string.Empty).Group(string.Empty).Build());
                }
                INodesInPath iip = fsd.GetINodesInPath(srcs, true);
                if (fsd.IsPermissionEnabled())
                {
                    fsd.CheckTraverse(pc, iip);
                }
                INode            inode      = FSDirectory.ResolveLastINode(iip);
                int              snapshotId = iip.GetPathSnapshotId();
                IList <AclEntry> acl        = AclStorage.ReadINodeAcl(fsd.GetAttributes(src, inode.GetLocalNameBytes
                                                                                            (), inode, snapshotId));
                FsPermission fsPermission = inode.GetFsPermission(snapshotId);
                return(new AclStatus.Builder().Owner(inode.GetUserName()).Group(inode.GetGroupName
                                                                                    ()).StickyBit(fsPermission.GetStickyBit()).SetPermission(fsPermission).AddEntries
                           (acl).Build());
            }
            finally
            {
                fsd.ReadUnlock();
            }
        }