/// <exception cref="System.IO.IOException"/>
public override bool Rename(Path src, Path dst)
{
// passing resolveLastComponet as false to catch renaming a mount point to
// itself. We need to catch this as an internal operation and fail.
InodeTree.ResolveResult <FileSystem> resSrc = fsState.Resolve(GetUriPath(src), false
);
if (resSrc.IsInternalDir())
{
throw ReadOnlyMountTable("rename", src);
}
InodeTree.ResolveResult <FileSystem> resDst = fsState.Resolve(GetUriPath(dst), false
);
if (resDst.IsInternalDir())
{
throw ReadOnlyMountTable("rename", dst);
}
//
// Alternate 3 : renames ONLY within the the same mount links.
//
if (resSrc.targetFileSystem != resDst.targetFileSystem)
{
throw new IOException("Renames across Mount points not supported");
}
return(resSrc.targetFileSystem.Rename(resSrc.remainingPath, resDst.remainingPath));
}
/// <exception cref="Org.Apache.Hadoop.Security.AccessControlException"/>
/// <exception cref="System.IO.FileNotFoundException"/>
/// <exception cref="System.IO.IOException"/>
public override bool Delete(Path f, bool recursive)
{
InodeTree.ResolveResult <FileSystem> res = fsState.Resolve(GetUriPath(f), true);
// If internal dir or target is a mount link (ie remainingPath is Slash)
if (res.IsInternalDir() || res.remainingPath == InodeTree.SlashPath)
{
throw ReadOnlyMountTable("delete", f);
}
return(res.targetFileSystem.Delete(res.remainingPath, recursive));
}
/// <exception cref="System.IO.FileNotFoundException"/>
/// <exception cref="System.IO.IOException"/>
protected internal override RemoteIterator <LocatedFileStatus> ListLocatedStatus(Path
f, PathFilter filter)
{
InodeTree.ResolveResult <FileSystem> res = fsState.Resolve(GetUriPath(f), true);
RemoteIterator <LocatedFileStatus> statusIter = res.targetFileSystem.ListLocatedStatus
(res.remainingPath);
if (res.IsInternalDir())
{
return(statusIter);
}
return(new _RemoteIterator_422(this, statusIter, res, f));
}
/// <exception cref="Org.Apache.Hadoop.Security.AccessControlException"/>
/// <exception cref="System.IO.FileNotFoundException"/>
/// <exception cref="System.IO.IOException"/>
public override FileStatus[] ListStatus(Path f)
{
InodeTree.ResolveResult <FileSystem> res = fsState.Resolve(GetUriPath(f), true);
FileStatus[] statusLst = res.targetFileSystem.ListStatus(res.remainingPath);
if (!res.IsInternalDir())
{
// We need to change the name in the FileStatus as described in
// {@link #getFileStatus }
int i = 0;
foreach (FileStatus status in statusLst)
{
statusLst[i++] = FixFileStatus(status, GetChrootedPath(res, status, f));
}
}
return(statusLst);
}
/// <exception cref="System.IO.FileNotFoundException"/>
public virtual Path GetTrashCanLocation(Path f)
{
InodeTree.ResolveResult <FileSystem> res = fsState.Resolve(GetUriPath(f), true);
return(res.IsInternalDir() ? null : res.targetFileSystem.GetHomeDirectory());
}
