public Task <bool> Process(XmlLookupWorkItem item)
{
var hashBytes = _hashProvider.Hash(item.LookupXElement.ToString());
var hash = _hashProvider.BytesToStr(hashBytes);
item.HashString = hash;
return(Task.FromResult(true));
}
/// <summary>
/// Starting with the innermost nodes, replace all lookups with identities
/// </summary>
/// <param name="xElement"></param>
private void ReplaceReferenceLookupsWithIdentities(XElement xElement)
{
XElement newIdentity = null;
var ns = xElement.Name.Namespace;
if (_regex.IsMatch(xElement.Name.LocalName))
{
var typeName = _regex.Match(xElement.Name.LocalName).Groups["TypeName"].Value;
var lookup = xElement.Element(ns + $"{typeName}Lookup");
var identity = xElement.Element(ns + $"{typeName}Identity");
if (lookup != null && identity == null)
{
var hashBytes = _hashProvider.Hash(lookup.ToString());
var hash = _hashProvider.BytesToStr(hashBytes);
if (_hashIdentities.ContainsKey(hash) && _hashIdentities[hash] != null)
{
newIdentity = XElement.Parse(_hashIdentities[hash].ToString());
lookup.AddBeforeSelf(
new XComment(
$"This {typeName}Lookup entity was used to populate its {typeName}Identity sibling"));
}
else
{
lookup.AddBeforeSelf(
new XComment(
$"No {typeName}Identity could be retrieved for this {typeName}Lookup entity"));
}
}
foreach (var element in xElement.Elements())
{
ReplaceReferenceLookupsWithIdentities(element);
}
if (newIdentity == null)
{
return;
}
xElement.Add(newIdentity);
newIdentity.AddBeforeSelf(
new XComment(
$"This {typeName}Identity entity was retrieved from the API using the provided {typeName}Lookup information"));
}
else
{
foreach (var element in xElement.Elements())
{
ReplaceReferenceLookupsWithIdentities(element);
}
}
}