/// <summary>Add the given symbolic link to the fs.</summary>
/// <remarks>Add the given symbolic link to the fs. Record it in the edits log.</remarks>
/// <exception cref="System.IO.IOException"/>
private static INodeSymlink AddSymlink(FSDirectory fsd, string path, INodesInPath
iip, string target, PermissionStatus dirPerms, bool createParent, bool logRetryCache
)
{
long mtime = Time.Now();
byte[] localName = iip.GetLastLocalName();
if (createParent)
{
KeyValuePair <INodesInPath, string> e = FSDirMkdirOp.CreateAncestorDirectories(fsd
, iip, dirPerms);
if (e == null)
{
return(null);
}
iip = INodesInPath.Append(e.Key, null, localName);
}
string userName = dirPerms.GetUserName();
long id = fsd.AllocateNewInodeId();
PermissionStatus perm = new PermissionStatus(userName, null, FsPermission.GetDefault
());
INodeSymlink newNode = UnprotectedAddSymlink(fsd, iip.GetExistingINodes(), localName
, id, target, mtime, mtime, perm);
if (newNode == null)
{
NameNode.stateChangeLog.Info("addSymlink: failed to add " + path);
return(null);
}
fsd.GetEditLog().LogSymlink(path, target, mtime, mtime, newNode, logRetryCache);
if (NameNode.stateChangeLog.IsDebugEnabled())
{
NameNode.stateChangeLog.Debug("addSymlink: " + path + " is added");
}
return(newNode);
}
/// <exception cref="System.IO.IOException"/>
private static INodesInPath CreateSingleDirectory(FSDirectory fsd, INodesInPath existing
, string localName, PermissionStatus perm)
{
System.Diagnostics.Debug.Assert(fsd.HasWriteLock());
existing = UnprotectedMkdir(fsd, fsd.AllocateNewInodeId(), existing, Sharpen.Runtime.GetBytesForString
(localName, Charsets.Utf8), perm, null, Time.Now());
if (existing == null)
{
return(null);
}
INode newNode = existing.GetLastINode();
// Directory creation also count towards FilesCreated
// to match count of FilesDeleted metric.
NameNode.GetNameNodeMetrics().IncrFilesCreated();
string cur = existing.GetPath();
fsd.GetEditLog().LogMkDir(cur, newNode);
if (NameNode.stateChangeLog.IsDebugEnabled())
{
NameNode.stateChangeLog.Debug("mkdirs: created directory " + cur);
}
return(existing);
}