public static ElementNavigator JumpToNameReference(this StructureDefinition elements, string nameReference)
{
var nav = new ElementNavigator(elements);
//TODO: In the current DSTU1 base profiles, nameReference is actually a path, not a name (to Element.Name)
//this is a problem, since when doing slicing, the path may no longer point to a single set of constraints
//so, we need to (temporarily) watch out for this
if (nameReference.Contains("."))
{
// An incorrectly used nameReference, containing a Path, not a name
if (nav.JumpToFirst(nameReference))
{
return(nav);
}
else
{
return(null);
}
}
else
{
if (nav.JumpToNameReference(nameReference))
{
return(nav);
}
else
{
return(null);
}
}
}
public static bool ExpandElement(this ElementNavigator nav, ArtifactResolver source)
{
if (source == null)
{
throw Error.ArgumentNull("source");
}
if (nav.Current == null)
{
throw Error.ArgumentNull("Navigator is not positioned on an element");
}
if (nav.HasChildren)
{
return(true); // already has children, we're not doing anything extra
}
var defn = nav.Current;
if (!String.IsNullOrEmpty(defn.NameReference))
{
var sourceNav = new ElementNavigator(nav);
var success = sourceNav.JumpToNameReference(defn.NameReference);
if (!success)
{
throw Error.InvalidOperation("Trying to navigate down a node that has a nameReference of '{0}', which cannot be found in the StructureDefinition".FormatWith(defn.NameReference));
}
nav.CopyChildren(sourceNav);
}
else if (defn.Type != null && defn.Type.Count > 0)
{
if (defn.Type.Count > 1)
{
throw new NotSupportedException("Element at path {0} has a choice of types, cannot expand".FormatWith(nav.Path));
}
else
{
var coreType = source.GetStructureDefinitionForCoreType(defn.Type[0].Code);
if (coreType == null)
{
throw Error.NotSupported("Trying to navigate down a node that has a declared base type of '{0}', which is unknown".FormatWith(defn.Type[0].Code));
}
if (coreType.Snapshot == null)
{
throw Error.NotSupported("Found definition of base type '{0}', but is does not contain a snapshot representation".FormatWith(defn.Type[0].Code));
}
var sourceNav = new ElementNavigator(coreType.Snapshot.Element);
sourceNav.MoveToFirstChild();
nav.CopyChildren(sourceNav);
}
}
return(true);
}
public static ElementNavigator JumpToNameReference(this StructureDefinition elements, string nameReference)
{
var nav = new ElementNavigator(elements);
//TODO: In the current DSTU1 base profiles, nameReference is actually a path, not a name (to Element.Name)
//this is a problem, since when doing slicing, the path may no longer point to a single set of constraints
//so, we need to (temporarily) watch out for this
if (nameReference.Contains("."))
{
// An incorrectly used nameReference, containing a Path, not a name
if (nav.JumpToFirst(nameReference))
return nav;
else
return null;
}
else
{
if (nav.JumpToNameReference(nameReference))
return nav;
else
return null;
}
}
public static bool ExpandElement(this ElementNavigator nav, ArtifactResolver source)
{
if (source == null) throw Error.ArgumentNull("source");
if (nav.Current == null) throw Error.ArgumentNull("Navigator is not positioned on an element");
if (nav.HasChildren) return true; // already has children, we're not doing anything extra
var defn = nav.Current;
if (!String.IsNullOrEmpty(defn.NameReference))
{
var sourceNav = new ElementNavigator(nav);
var success = sourceNav.JumpToNameReference(defn.NameReference);
if(!success)
throw Error.InvalidOperation("Trying to navigate down a node that has a nameReference of '{0}', which cannot be found in the StructureDefinition".FormatWith(defn.NameReference));
nav.CopyChildren(sourceNav);
}
else if (defn.Type != null && defn.Type.Count > 0)
{
if (defn.Type.Count > 1)
throw new NotSupportedException("Element at path {0} has a choice of types, cannot expand".FormatWith(nav.Path));
else
{
var coreType = source.GetStructureDefinitionForCoreType(defn.Type[0].Code);
if (coreType == null) throw Error.NotSupported("Trying to navigate down a node that has a declared base type of '{0}', which is unknown".FormatWith(defn.Type[0].Code));
if (coreType.Snapshot == null) throw Error.NotSupported("Found definition of base type '{0}', but is does not contain a snapshot representation".FormatWith(defn.Type[0].Code));
var sourceNav = new ElementNavigator(coreType.Snapshot.Element);
sourceNav.MoveToFirstChild();
nav.CopyChildren(sourceNav);
}
}
return true;
}
