/// <summary>
/// This is the main public interface for constraint parser. Takes the given constraint and builds an AssertionLineBuilder, applying the values, attributes, context, etc as necessary.
/// </summary>
/// <returns>
/// AssertionLineBuilder representing the values from the constraint given to the parser.
/// </returns>
public AssertionLineBuilder CreateAssertionLineBuilder()
{
IConstraint currentConstraint = this.constraint; //set current constraint, setting this as a variable allows us to move the current constraint to the parent when dealing with branches
if (string.IsNullOrEmpty(currentConstraint.Context) &&
(currentConstraint.ContainedTemplateId == null)) //we can have empty context but a contained template
{
return(null);
}
DocumentTemplateElement element = null;
DocumentTemplateElementAttribute attribute = null;
ConstraintToDocumentElementHelper.ParseContextForElementAndAttribute(currentConstraint, out element, out attribute);
DocumentTemplateElement parentElement =
ConstraintToDocumentElementHelper.CreateParentElementForAttribute(currentConstraint, attribute);
string parentContext =
CreateParentContextForElement(parentElement, element, currentConstraint);
AssertionLineBuilder asb = null;
AssertionLineBuilder branchedRootAsb = null;
// Determine if we should create the AssertionLineBuilder starting with an attribute or an element.
if (attribute != null)
{
DecorateAttributeFromConstraint(parentContext, attribute, currentConstraint, this.constraintValueSet);
if (currentConstraint.Parent != null && currentConstraint.IsBranch)
{
branchedRootAsb = CreateBranchedRootAssertionLineBuilderFromConstraint(currentConstraint);
}
else
{
asb = CreateAssertionLineBuilderForAttribute(parentElement, attribute, ref parentContext, ref currentConstraint);
}
}
else //this is an element
{
ConstraintToDocumentElementHelper.AddCodeSystemToElement(this.tdb, this.igTypePlugin, element, currentConstraint);
if (currentConstraint.IsBranch)
{
branchedRootAsb = CreateBranchedRootAssertionLineBuilderFromConstraint(currentConstraint);
branchedRootAsb.HasParentContext(parentContext);
}
else
{
//if we have a context already then we will append it at end so pass in false, else go ahead and generate (pass in true)
asb = CreateAssertionLineBuilderForElement(element, this.constraint, ref parentContext, string.IsNullOrEmpty(parentContext));
}
}
if (branchedRootAsb == null) //if this is a branched root then a separate builder was constructed
{
ConstraintToDocumentElementHelper.AddConformance(currentConstraint, asb);
ConstraintToDocumentElementHelper.AddCardinality(currentConstraint, asb);
// Determine if we have a valueset
if (this.constraintValueSet != null && currentConstraint.IsValueSetStatic)
{
var requireValueset = true;
if (!string.IsNullOrEmpty(currentConstraint.ValueConformance))
{
if (ConformanceParser.Parse(currentConstraint.Conformance) != ConformanceParser.Parse(currentConstraint.ValueConformance))
{
requireValueset = false;
}
}
if (requireValueset)
{
//TODO: Move into CDA specific library
//are we bound directly to a code or value element?
bool includeNullFlavor = false;
if (element != null && attribute == null && (element.ElementName == "value" || element.ElementName == "code"))
{
includeNullFlavor = true;
}
string valueSetIdentifier = this.igTypePlugin.ParseIdentifier(this.constraintValueSet.Oid);
asb.WithinValueSet(valueSetIdentifier, this.valueSetFile, this.vocabularyOutputType, includeNullFlavor);
}
}
//determine if we have a parent context
if (!string.IsNullOrEmpty(parentContext))
{
asb.HasParentContext(parentContext);
DecorateParentOptionality(asb, currentConstraint);
}
}
else //branched root, use that one instead
{
//determine if we have a parent context
if (!string.IsNullOrEmpty(parentContext))
{
branchedRootAsb.HasParentContext(parentContext);
DecorateParentOptionality(branchedRootAsb, currentConstraint);
}
}
return((branchedRootAsb == null) ? asb : branchedRootAsb);
}
