public void ReadXml(XmlReader reader)
{
if (Rules != null)
{
throw new InvalidOperationException();
}
var xElement = (XElement)XNode.ReadFrom(reader);
Name = xElement.Attribute(ATTR.name)?.Value;
RowSource = xElement.Attribute(ATTR.rowsource)?.Value;
var rules = new List <MetadataRule>();
foreach (var child in xElement.Elements(EL.rule))
{
var rule = new MetadataRule();
var attrSource = child.Attribute(ATTR.source);
if (attrSource != null)
{
rule = rule.ChangeSource(PropertyPath.Parse(attrSource.Value));
}
rule = rule.ChangePattern(child.Attribute(ATTR.pattern)?.Value);
rule = rule.ChangeReplacement(child.Attribute(ATTR.replacement)?.Value);
var attrTarget = child.Attribute(ATTR.target);
if (attrTarget != null)
{
rule = rule.ChangeTarget(PropertyPath.Parse(attrTarget.Value));
}
rules.Add(rule);
}
Rules = ImmutableList.ValueOf(rules);
}
