public override byte GetLocalStoragePolicyID()
{
XAttrFeature f = GetXAttrFeature();
ImmutableList <XAttr> xattrs = f == null?ImmutableList.Of <XAttr>() : f.GetXAttrs
();
foreach (XAttr xattr in xattrs)
{
if (BlockStoragePolicySuite.IsStoragePolicyXAttr(xattr))
{
return((xattr.GetValue())[0]);
}
}
return(BlockStoragePolicySuite.IdUnspecified);
}
private static FsImageProto.INodeSection.XAttrFeatureProto.Builder BuildXAttrs(XAttrFeature
f, FSImageFormatProtobuf.SaverContext.DeduplicationMap <string> stringMap)
{
FsImageProto.INodeSection.XAttrFeatureProto.Builder b = FsImageProto.INodeSection.XAttrFeatureProto
.NewBuilder();
foreach (XAttr a in f.GetXAttrs())
{
FsImageProto.INodeSection.XAttrCompactProto.Builder xAttrCompactBuilder = FsImageProto.INodeSection.XAttrCompactProto
.NewBuilder();
int nsOrd = (int)(a.GetNameSpace());
Preconditions.CheckArgument(nsOrd < 8, "Too many namespaces.");
int v = ((nsOrd & XattrNamespaceMask) << XattrNamespaceOffset) | ((stringMap.GetId
(a.GetName()) & XattrNameMask) << XattrNameOffset);
v |= (((nsOrd >> 2) & XattrNamespaceExtMask) << XattrNamespaceExtOffset);
xAttrCompactBuilder.SetName(v);
if (a.GetValue() != null)
{
xAttrCompactBuilder.SetValue(PBHelper.GetByteString(a.GetValue()));
}
b.AddXAttrs(((FsImageProto.INodeSection.XAttrCompactProto)xAttrCompactBuilder.Build
()));
}
return(b);
}
/// <summary>Reads the existing extended attributes of an inode.</summary>
/// <remarks>
/// Reads the existing extended attributes of an inode.
/// <p/>
/// Must be called while holding the FSDirectory read lock.
/// </remarks>
/// <param name="inodeAttr">INodeAttributes to read.</param>
/// <returns>List<XAttr> <code>XAttr</code> list.</returns>
public static IList <XAttr> ReadINodeXAttrs(INodeAttributes inodeAttr)
{
XAttrFeature f = inodeAttr.GetXAttrFeature();
return(f == null?ImmutableList.Of <XAttr>() : f.GetXAttrs());
}
/// <summary>Reads the existing extended attributes of an inode.</summary>
/// <remarks>
/// Reads the existing extended attributes of an inode. If the
/// inode does not have an <code>XAttr</code>, then this method
/// returns an empty list.
/// <p/>
/// Must be called while holding the FSDirectory read lock.
/// </remarks>
/// <param name="inode">INode to read</param>
/// <param name="snapshotId"/>
/// <returns>List<XAttr> <code>XAttr</code> list.</returns>
public static IList <XAttr> ReadINodeXAttrs(INode inode, int snapshotId)
{
XAttrFeature f = inode.GetXAttrFeature(snapshotId);
return(f == null?ImmutableList.Of <XAttr>() : f.GetXAttrs());
}