/// <summary>Validates the toString method for FileStatus.</summary>
/// <param name="fileStatus">FileStatus to be validated</param>
/// <exception cref="System.IO.IOException"/>
private void ValidateToString(FileStatus fileStatus)
{
StringBuilder expected = new StringBuilder();
expected.Append("FileStatus{");
expected.Append("path=").Append(fileStatus.GetPath()).Append("; ");
expected.Append("isDirectory=").Append(fileStatus.IsDirectory()).Append("; ");
if (!fileStatus.IsDirectory())
{
expected.Append("length=").Append(fileStatus.GetLen()).Append("; ");
expected.Append("replication=").Append(fileStatus.GetReplication()).Append("; ");
expected.Append("blocksize=").Append(fileStatus.GetBlockSize()).Append("; ");
}
expected.Append("modification_time=").Append(fileStatus.GetModificationTime()).Append
("; ");
expected.Append("access_time=").Append(fileStatus.GetAccessTime()).Append("; ");
expected.Append("owner=").Append(fileStatus.GetOwner()).Append("; ");
expected.Append("group=").Append(fileStatus.GetGroup()).Append("; ");
expected.Append("permission=").Append(fileStatus.GetPermission()).Append("; ");
if (fileStatus.IsSymlink())
{
expected.Append("isSymlink=").Append(true).Append("; ");
expected.Append("symlink=").Append(fileStatus.GetSymlink()).Append("}");
}
else
{
expected.Append("isSymlink=").Append(false).Append("}");
}
Assert.Equal(expected.ToString(), fileStatus.ToString());
}
/// <exception cref="System.IO.IOException"/>
public virtual void TestSetPermissionAffectsTarget()
{
Path file = new Path(TestBaseDir1(), "file");
Path dir = new Path(TestBaseDir2());
Path linkToFile = new Path(TestBaseDir1(), "linkToFile");
Path linkToDir = new Path(TestBaseDir1(), "linkToDir");
CreateAndWriteFile(file);
wrapper.CreateSymlink(file, linkToFile, false);
wrapper.CreateSymlink(dir, linkToDir, false);
// Changing the permissions using the link does not modify
// the permissions of the link..
FsPermission perms = wrapper.GetFileLinkStatus(linkToFile).GetPermission();
wrapper.SetPermission(linkToFile, new FsPermission((short)0x1b4));
wrapper.SetOwner(linkToFile, "user", "group");
NUnit.Framework.Assert.AreEqual(perms, wrapper.GetFileLinkStatus(linkToFile).GetPermission
());
// but the file's permissions were adjusted appropriately
FileStatus stat = wrapper.GetFileStatus(file);
NUnit.Framework.Assert.AreEqual(0x1b4, stat.GetPermission().ToShort());
NUnit.Framework.Assert.AreEqual("user", stat.GetOwner());
NUnit.Framework.Assert.AreEqual("group", stat.GetGroup());
// Getting the file's permissions via the link is the same
// as getting the permissions directly.
NUnit.Framework.Assert.AreEqual(stat.GetPermission(), wrapper.GetFileStatus(linkToFile
).GetPermission());
// Ditto for a link to a directory
perms = wrapper.GetFileLinkStatus(linkToDir).GetPermission();
wrapper.SetPermission(linkToDir, new FsPermission((short)0x1b4));
wrapper.SetOwner(linkToDir, "user", "group");
NUnit.Framework.Assert.AreEqual(perms, wrapper.GetFileLinkStatus(linkToDir).GetPermission
());
stat = wrapper.GetFileStatus(dir);
NUnit.Framework.Assert.AreEqual(0x1b4, stat.GetPermission().ToShort());
NUnit.Framework.Assert.AreEqual("user", stat.GetOwner());
NUnit.Framework.Assert.AreEqual("group", stat.GetGroup());
NUnit.Framework.Assert.AreEqual(stat.GetPermission(), wrapper.GetFileStatus(linkToDir
).GetPermission());
}
// Expected
/// <exception cref="System.IO.IOException"/>
public virtual void TestLinkOwner()
{
Path file = new Path(TestBaseDir1(), "file");
Path link = new Path(TestBaseDir1(), "symlinkToFile");
CreateAndWriteFile(file);
wrapper.CreateSymlink(file, link, false);
FileStatus statFile = wrapper.GetFileStatus(file);
FileStatus statLink = wrapper.GetFileStatus(link);
NUnit.Framework.Assert.AreEqual(statLink.GetOwner(), statFile.GetOwner());
}
// Expected
/// <exception cref="System.IO.IOException"/>
public virtual void TestDanglingLink()
{
Assume.AssumeTrue(!Path.Windows);
Path fileAbs = new Path(TestBaseDir1() + "/file");
Path fileQual = new Path(TestURI().ToString(), fileAbs);
Path link = new Path(TestBaseDir1() + "/linkToFile");
Path linkQual = new Path(TestURI().ToString(), link.ToString());
wrapper.CreateSymlink(fileAbs, link, false);
// Deleting the link using FileContext currently fails because
// resolve looks up LocalFs rather than RawLocalFs for the path
// so we call ChecksumFs delete (which doesn't delete dangling
// links) instead of delegating to delete in RawLocalFileSystem
// which deletes via fullyDelete. testDeleteLink above works
// because the link is not dangling.
//assertTrue(fc.delete(link, false));
FileUtil.FullyDelete(new FilePath(link.ToUri().GetPath()));
wrapper.CreateSymlink(fileAbs, link, false);
try
{
wrapper.GetFileStatus(link);
NUnit.Framework.Assert.Fail("Got FileStatus for dangling link");
}
catch (FileNotFoundException)
{
}
// Expected. File's exists method returns false for dangling links
// We can stat a dangling link
UserGroupInformation user = UserGroupInformation.GetCurrentUser();
FileStatus fsd = wrapper.GetFileLinkStatus(link);
Assert.Equal(fileQual, fsd.GetSymlink());
Assert.True(fsd.IsSymlink());
NUnit.Framework.Assert.IsFalse(fsd.IsDirectory());
Assert.Equal(user.GetUserName(), fsd.GetOwner());
// Compare against user's primary group
Assert.Equal(user.GetGroupNames()[0], fsd.GetGroup());
Assert.Equal(linkQual, fsd.GetPath());
// Accessing the link
try
{
ReadFile(link);
NUnit.Framework.Assert.Fail("Got FileStatus for dangling link");
}
catch (FileNotFoundException)
{
}
// Ditto.
// Creating the file makes the link work
CreateAndWriteFile(fileAbs);
wrapper.GetFileStatus(link);
}
/// <summary>Validate the accessors for FileStatus.</summary>
/// <param name="fileStatus">FileStatus to checked</param>
/// <param name="length">expected length</param>
/// <param name="isdir">expected isDirectory</param>
/// <param name="replication">expected replication</param>
/// <param name="blocksize">expected blocksize</param>
/// <param name="mtime">expected modification time</param>
/// <param name="atime">expected access time</param>
/// <param name="permission">expected permission</param>
/// <param name="owner">expected owner</param>
/// <param name="group">expected group</param>
/// <param name="symlink">expected symlink</param>
/// <param name="path">expected path</param>
/// <exception cref="System.IO.IOException"/>
private void ValidateAccessors(FileStatus fileStatus, long length, bool isdir, int
replication, long blocksize, long mtime, long atime, FsPermission permission, string
owner, string group, Path symlink, Path path)
{
Assert.Equal(length, fileStatus.GetLen());
Assert.Equal(isdir, fileStatus.IsDirectory());
Assert.Equal(replication, fileStatus.GetReplication());
Assert.Equal(blocksize, fileStatus.GetBlockSize());
Assert.Equal(mtime, fileStatus.GetModificationTime());
Assert.Equal(atime, fileStatus.GetAccessTime());
Assert.Equal(permission, fileStatus.GetPermission());
Assert.Equal(owner, fileStatus.GetOwner());
Assert.Equal(group, fileStatus.GetGroup());
if (symlink == null)
{
NUnit.Framework.Assert.IsFalse(fileStatus.IsSymlink());
}
else
{
Assert.True(fileStatus.IsSymlink());
Assert.Equal(symlink, fileStatus.GetSymlink());
}
Assert.Equal(path, fileStatus.GetPath());
}
/// <summary>Constructor</summary>
/// <param name="stat">a file status</param>
/// <param name="locations">a file's block locations</param>
/// <exception cref="System.IO.IOException"/>
public LocatedFileStatus(FileStatus stat, BlockLocation[] locations)
: this(stat.GetLen(), stat.IsDirectory(), stat.GetReplication(), stat.GetBlockSize
(), stat.GetModificationTime(), stat.GetAccessTime(), stat.GetPermission(), stat
.GetOwner(), stat.GetGroup(), null, stat.GetPath(), locations)
{
if (stat.IsSymlink())
{
SetSymlink(stat.GetSymlink());
}
}
private FileStatus DeprecatedGetFileLinkStatusInternal(Path f)
{
string target = FileUtil.ReadLink(new FilePath(f.ToString()));
try
{
FileStatus fs = GetFileStatus(f);
// If f refers to a regular file or directory
if (target.IsEmpty())
{
return(fs);
}
// Otherwise f refers to a symlink
return(new FileStatus(fs.GetLen(), false, fs.GetReplication(), fs.GetBlockSize(),
fs.GetModificationTime(), fs.GetAccessTime(), fs.GetPermission(), fs.GetOwner(),
fs.GetGroup(), new Path(target), f));
}
catch (FileNotFoundException e)
{
/* The exists method in the File class returns false for dangling
* links so we can get a FileNotFoundException for links that exist.
* It's also possible that we raced with a delete of the link. Use
* the readBasicFileAttributes method in java.nio.file.attributes
* when available.
*/
if (!target.IsEmpty())
{
return(new FileStatus(0, false, 0, 0, 0, 0, FsPermission.GetDefault(), string.Empty
, string.Empty, new Path(target), f));
}
// f refers to a file or directory that does not exist
throw;
}
}
