public void ValidateConstraint(Element element, Constraint constraint)
{
if (constraint.IsValid)
{
Log(Group.Constraint, Status.Valid, "Constraint is valid");
}
else
{
Log(Group.Constraint, Status.Failed,
"Constraint [{0}] ({1}) has an invalid XPath: {2}",
constraint.Name, constraint.HumanReadable, constraint.CompilerError.Message);
}
}
private void HarvestConstraints(Profile.ElementDefinitionComponent source, Element target)
{
if (source.Constraint == null)
return;
foreach(Profile.ElementDefinitionConstraintComponent c in source.Constraint)
{
Constraint constraint = new Constraint();
constraint.Name = c.Name ?? c.Key;
constraint.XPath = c.Xpath;
constraint.HumanReadable = c.Human;
target.Constraints.Add(constraint);
}
}
public void ValidateConstraint(Vector vector, Constraint constraint)
{
if (constraint.IsValid)
{
try
{
bool valid = vector.Evaluate(constraint);
if (valid)
Log(Group.Constraint, Status.Valid, vector, "Node [{0}] conforms to constraint [{1}]", vector.Node.Name, constraint.Name);
else
Log(Group.Constraint, Status.Failed, vector, "Node [{0}] does not conform to constraint [{1}]: \"{2}\" ", vector.Node.Name, constraint.Name, constraint.HumanReadable);
}
catch (XPathException e)
{
Log(Group.Constraint, Status.Failed, vector, "Evaluation of constraint [{0}] evaluation failed: {1}", constraint.Name, e.Message);
}
}
}
public bool Evaluate(Constraint constraint)
{
bool valid = (bool)Node.Evaluate(constraint.Expression);
return valid;
}
public void ReadConstraints(Element element, XPathNavigator node)
{
foreach (XPathNavigator nav in node.Select("f:definition/f:constraint", ns))
{
Constraint constraint = new Constraint();
XPathNavigator xName = nav.SelectSingleNode("f:name/@value", ns);
string key = OptionalValue(nav, "f:key/@value");
constraint.Name = (xName != null) ? xName.Value : element.Path+", Key:"+key;
constraint.XPath = nav.SelectSingleNode("f:xpath/@value", ns).Value;
constraint.HumanReadable = OptionalValue(nav, "f:human/@value");
element.Constraints.Add(constraint);
}
}
