/// <summary>Get name with prefix from <code>XAttr</code></summary>
public static string GetPrefixName(XAttr xAttr)
{
if (xAttr == null)
{
return(null);
}
string @namespace = xAttr.GetNameSpace().ToString();
return(StringUtils.ToLowerCase(@namespace) + "." + xAttr.GetName());
}
/// <summary>
/// Verifies that the combined size of the name and value of an xattr is within
/// the configured limit.
/// </summary>
/// <remarks>
/// Verifies that the combined size of the name and value of an xattr is within
/// the configured limit. Setting a limit of zero disables this check.
/// </remarks>
private static void CheckXAttrSize(FSDirectory fsd, XAttr xAttr)
{
if (fsd.GetXattrMaxSize() == 0)
{
return;
}
int size = Sharpen.Runtime.GetBytesForString(xAttr.GetName(), Charsets.Utf8).Length;
if (xAttr.GetValue() != null)
{
size += xAttr.GetValue().Length;
}
if (size > fsd.GetXattrMaxSize())
{
throw new HadoopIllegalArgumentException("The XAttr is too big. The maximum combined size of the"
+ " name and value is " + fsd.GetXattrMaxSize() + ", but the total size is " +
size);
}
}
public static bool IsStoragePolicyXAttr(XAttr xattr)
{
return(xattr != null && xattr.GetNameSpace() == XAttrNS && xattr.GetName().Equals
(StoragePolicyXattrName));
}