public static Nfs3FileAttributes GetNfs3FileAttrFromFileStatus(HdfsFileStatus fs,
IdMappingServiceProvider iug)
{
NfsFileType fileType = fs.IsDir() ? NfsFileType.Nfsdir : NfsFileType.Nfsreg;
fileType = fs.IsSymlink() ? NfsFileType.Nfslnk : fileType;
int nlink = (fileType == NfsFileType.Nfsdir) ? fs.GetChildrenNum() + 2 : 1;
long size = (fileType == NfsFileType.Nfsdir) ? GetDirSize(fs.GetChildrenNum()) :
fs.GetLen();
return(new Nfs3FileAttributes(fileType, nlink, fs.GetPermission().ToShort(), iug.
GetUidAllowingUnknown(fs.GetOwner()), iug.GetGidAllowingUnknown(fs.GetGroup()),
size, 0, fs.GetFileId(), fs.GetModificationTime(), fs.GetAccessTime(), new Nfs3FileAttributes.Specdata3
()));
}
/// <exception cref="System.IO.IOException"/>
public static WccAttr GetWccAttr(DFSClient client, string fileIdPath)
{
HdfsFileStatus fstat = GetFileStatus(client, fileIdPath);
if (fstat == null)
{
return(null);
}
long size = fstat.IsDir() ? GetDirSize(fstat.GetChildrenNum()) : fstat.GetLen();
return(new WccAttr(size, new NfsTime(fstat.GetModificationTime()), new NfsTime(fstat
.GetModificationTime())));
}
public virtual void TestGetFileInfo()
{
// Check that / exists
Path path = new Path("/");
NUnit.Framework.Assert.IsTrue("/ should be a directory", fs.GetFileStatus(path).IsDirectory
());
// Make sure getFileInfo returns null for files which do not exist
HdfsFileStatus fileInfo = dfsClient.GetFileInfo("/noSuchFile");
NUnit.Framework.Assert.AreEqual("Non-existant file should result in null", null,
fileInfo);
Path path1 = new Path("/name1");
Path path2 = new Path("/name1/name2");
NUnit.Framework.Assert.IsTrue(fs.Mkdirs(path1));
FSDataOutputStream @out = fs.Create(path2, false);
@out.Close();
fileInfo = dfsClient.GetFileInfo(path1.ToString());
NUnit.Framework.Assert.AreEqual(1, fileInfo.GetChildrenNum());
fileInfo = dfsClient.GetFileInfo(path2.ToString());
NUnit.Framework.Assert.AreEqual(0, fileInfo.GetChildrenNum());
// Test getFileInfo throws the right exception given a non-absolute path.
try
{
dfsClient.GetFileInfo("non-absolute");
NUnit.Framework.Assert.Fail("getFileInfo for a non-absolute path did not throw IOException"
);
}
catch (RemoteException re)
{
NUnit.Framework.Assert.IsTrue("Wrong exception for invalid file name", re.ToString
().Contains("Invalid file name"));
}
}
/// <summary>Convert a HdfsFileStatus object to a Json string.</summary>
public static string ToJsonString(HdfsFileStatus status, bool includeType)
{
if (status == null)
{
return(null);
}
IDictionary <string, object> m = new SortedDictionary <string, object>();
m["pathSuffix"] = status.GetLocalName();
m["type"] = JsonUtil.PathType.ValueOf(status);
if (status.IsSymlink())
{
m["symlink"] = status.GetSymlink();
}
m["length"] = status.GetLen();
m["owner"] = status.GetOwner();
m["group"] = status.GetGroup();
FsPermission perm = status.GetPermission();
m["permission"] = ToString(perm);
if (perm.GetAclBit())
{
m["aclBit"] = true;
}
if (perm.GetEncryptedBit())
{
m["encBit"] = true;
}
m["accessTime"] = status.GetAccessTime();
m["modificationTime"] = status.GetModificationTime();
m["blockSize"] = status.GetBlockSize();
m["replication"] = status.GetReplication();
m["fileId"] = status.GetFileId();
m["childrenNum"] = status.GetChildrenNum();
m["storagePolicy"] = status.GetStoragePolicy();
ObjectMapper mapper = new ObjectMapper();
try
{
return(includeType ? ToJsonString(typeof(FileStatus), m) : mapper.WriteValueAsString
(m));
}
catch (IOException)
{
}
return(null);
}
