// do not store locations of last block
/// <summary>
/// Serialize a
/// <see cref="INodeFile"/>
/// node
/// </summary>
/// <param name="node">The node to write</param>
/// <param name="out">
/// The
/// <see cref="System.IO.DataOutputStream"/>
/// where the fields are written
/// </param>
/// <param name="writeBlock">Whether to write block information</param>
/// <exception cref="System.IO.IOException"/>
public static void WriteINodeFile(INodeFile file, DataOutput @out, bool writeUnderConstruction
)
{
WriteLocalName(file, @out);
@out.WriteLong(file.GetId());
@out.WriteShort(file.GetFileReplication());
@out.WriteLong(file.GetModificationTime());
@out.WriteLong(file.GetAccessTime());
@out.WriteLong(file.GetPreferredBlockSize());
WriteBlocks(file.GetBlocks(), @out);
SnapshotFSImageFormat.SaveFileDiffList(file, @out);
if (writeUnderConstruction)
{
if (file.IsUnderConstruction())
{
@out.WriteBoolean(true);
FileUnderConstructionFeature uc = file.GetFileUnderConstructionFeature();
WriteString(uc.GetClientName(), @out);
WriteString(uc.GetClientMachine(), @out);
}
else
{
@out.WriteBoolean(false);
}
}
WritePermissionStatus(file, @out);
}
// Helper function that writes an INodeUnderConstruction
// into the output stream
//
/// <exception cref="System.IO.IOException"/>
internal static void WriteINodeUnderConstruction(DataOutputStream @out, INodeFile
cons, string path)
{
WriteString(path, @out);
@out.WriteLong(cons.GetId());
@out.WriteShort(cons.GetFileReplication());
@out.WriteLong(cons.GetModificationTime());
@out.WriteLong(cons.GetPreferredBlockSize());
WriteBlocks(cons.GetBlocks(), @out);
cons.GetPermissionStatus().Write(@out);
FileUnderConstructionFeature uc = cons.GetFileUnderConstructionFeature();
WriteString(uc.GetClientName(), @out);
WriteString(uc.GetClientMachine(), @out);
@out.WriteInt(0);
}
/// <summary>Load the under-construction files section, and update the lease map</summary>
/// <exception cref="System.IO.IOException"/>
internal void LoadFilesUnderConstructionSection(InputStream @in)
{
while (true)
{
FsImageProto.FilesUnderConstructionSection.FileUnderConstructionEntry entry = FsImageProto.FilesUnderConstructionSection.FileUnderConstructionEntry
.ParseDelimitedFrom(@in);
if (entry == null)
{
break;
}
// update the lease manager
INodeFile file = dir.GetInode(entry.GetInodeId()).AsFile();
FileUnderConstructionFeature uc = file.GetFileUnderConstructionFeature();
Preconditions.CheckState(uc != null);
// file must be under-construction
fsn.leaseManager.AddLease(uc.GetClientName(), entry.GetFullPath());
}
}
/// <exception cref="System.IO.IOException"/>
private void Save(OutputStream @out, INodeFile n)
{
FsImageProto.INodeSection.INodeFile.Builder b = BuildINodeFile(n, parent.GetSaverContext
());
if (n.GetBlocks() != null)
{
foreach (Block block in n.GetBlocks())
{
b.AddBlocks(PBHelper.Convert(block));
}
}
FileUnderConstructionFeature uc = n.GetFileUnderConstructionFeature();
if (uc != null)
{
FsImageProto.INodeSection.FileUnderConstructionFeature f = ((FsImageProto.INodeSection.FileUnderConstructionFeature
)FsImageProto.INodeSection.FileUnderConstructionFeature.NewBuilder().SetClientName
(uc.GetClientName()).SetClientMachine(uc.GetClientMachine()).Build());
b.SetFileUC(f);
}
FsImageProto.INodeSection.INode r = ((FsImageProto.INodeSection.INode)BuildINodeCommon
(n).SetType(FsImageProto.INodeSection.INode.Type.File).SetFile(b).Build());
r.WriteDelimitedTo(@out);
}
