internal NamedContentModelEntity GetNamedEntity(XName name)
{
NamedContentModelEntity namedEntity = null;
elementPositions.TryGetValue(name, out namedEntity);
return(namedEntity);
}
private void CheckChoiceBranches(XName currentBranch, XElement parentElement)
{
var elementsToRemove = new List <XElement>();
NamedContentModelEntity otherBranch = null;
foreach (XElement instanceElement in parentElement.Elements())
{
if (instanceElement.Name == currentBranch)
{
//This is the element we set just now
continue;
}
otherBranch = GetNamedEntity(instanceElement.Name);
if (otherBranch != null)
{
//It is a branch of choice
Debug.Assert(otherBranch.ParentContentModel ==
this); //Currently this should be invoked only for flat choices
elementsToRemove.Add(instanceElement);
}
}
foreach (XElement elementToRemove in elementsToRemove)
{
elementToRemove.Remove();
}
}
internal XElement FindElementPosition(NamedContentModelEntity namedEntity, XElement parentElement, bool addToExisting, out EditAction editAction)
{
XElement xElement;
Debug.Assert(namedEntity != null);
editAction = EditAction.None;
int newElementPos = namedEntity.ElementPosition;
XElement lastElement = this.GetLastElement(parentElement);
if (lastElement != null)
{
int lastElementPos = this.GetNamedEntity(lastElement.Name).ElementPosition;
if (newElementPos == lastElementPos)
{
if (!addToExisting)
{
editAction = EditAction.Update;
}
else
{
editAction = EditAction.Append;
}
xElement = lastElement;
return(xElement);
}
else if (newElementPos > lastElementPos)
{
editAction = EditAction.Append;
xElement = lastElement;
return(xElement);
}
}
int instanceElementPos = -1;
XElement instanceElem = null;
IEnumerator <XElement> enumerator = parentElement.Elements().GetEnumerator();
while (enumerator.MoveNext())
{
instanceElem = enumerator.Current;
instanceElementPos = this.GetElementPosition(instanceElem.Name);
if (instanceElementPos == newElementPos)
{
if (!addToExisting)
{
editAction = EditAction.Update;
xElement = instanceElem;
return(xElement);
}
}
else if (instanceElementPos > newElementPos)
{
editAction = EditAction.AddBefore;
xElement = instanceElem;
return(xElement);
}
}
editAction = EditAction.Append;
xElement = instanceElem;
return(xElement);
}
internal void AddElementInPosition(XName name, XElement parentElement, bool addToExisting, XTypedElement xObj)
{
NamedContentModelEntity namedEntity = GetNamedEntity(name);
if (namedEntity == null)
{
// See http://linqtoxsd.codeplex.com/WorkItem/View.aspx?WorkItemId=3542
throw new LinqToXsdException(
"Name does not belong in content model. Cannot set value for child " +
name.LocalName);
}
EditAction editAction = EditAction.None;
XElement elementMarker = FindElementPosition(namedEntity, parentElement, addToExisting, out editAction);
XElement newElement = XTypedServices.GetXElement(xObj, name);
Debug.Assert(xObj != null);
switch (editAction)
{
case EditAction.Append:
parentElement.Add(newElement);
break;
case EditAction.Update:
elementMarker.AddBeforeSelf(newElement);
elementMarker.Remove();
break;
case EditAction.AddBefore:
elementMarker.AddBeforeSelf(newElement);
break;
}
}
internal void AddValueInPosition(XName name, XElement parentElement, bool addToExisting, object value, XmlSchemaDatatype datatype)
{
NamedContentModelEntity namedEntity = GetNamedEntity(name);
if (namedEntity == null)
{
throw new LinqToXsdException("Name does not belong in content model. Cannot set value for child " + namedEntity.Name);
}
EditAction editAction = EditAction.None;
XElement elementMarker = FindElementPosition(namedEntity, parentElement, addToExisting, out editAction);
Debug.Assert(datatype != null); //Simple typed value add or set
switch (editAction)
{
case EditAction.Append:
parentElement.Add(new XElement(name, XTypedServices.GetXmlString(value, datatype, parentElement)));
break;
case EditAction.Update:
Debug.Assert(elementMarker != null);
elementMarker.Value = XTypedServices.GetXmlString(value, datatype, elementMarker);
break;
case EditAction.AddBefore:
Debug.Assert(elementMarker != null);
elementMarker.AddBeforeSelf(new XElement(name, XTypedServices.GetXmlString(value, datatype, elementMarker)));
break;
default:
throw new InvalidOperationException();
}
}
protected SchemaAwareContentModelEntity(params ContentModelEntity[] items)
{
elementPositions = new Dictionary <XName, NamedContentModelEntity>();
foreach (ContentModelEntity cmEntity in items)
{
NamedContentModelEntity named = cmEntity as NamedContentModelEntity;
if (named != null)
{
if (!elementPositions.ContainsKey(named.Name)) //Pick the first position for a repeating name
{
named.ElementPosition = last++;
named.ParentContentModel = this;
elementPositions.Add(named.Name, named);
//Add subst members to the same position as head if this a substitution head
CheckSubstitutionGroup(named);
}
}
else //cmEntity is choice or sequence
{
SchemaAwareContentModelEntity scmEntity = cmEntity as SchemaAwareContentModelEntity;
Debug.Assert(scmEntity != null);
foreach (NamedContentModelEntity childEntity in scmEntity.ElementPositions.Values)
{
if (!elementPositions.ContainsKey(childEntity.Name))
{
childEntity.ElementPosition = last++; //Update position w.r.t parent
elementPositions.Add(childEntity.Name, childEntity);
}
}
}
}
}
internal int GetElementPosition(XName name)
{
NamedContentModelEntity named = GetNamedEntity(name);
if (named != null)
{
return(named.ElementPosition);
}
return(-1);
}
internal XElement FindElementPosition(NamedContentModelEntity namedEntity, XElement parentElement, bool addToExisting, out EditAction editAction)
{
Debug.Assert(namedEntity != null);
editAction = EditAction.None;
int newElementPos = namedEntity.ElementPosition;
XElement lastElement = GetLastElement(parentElement);
if (lastElement != null) //Optimization to check last first
{
int lastElementPos = GetNamedEntity(lastElement.Name).ElementPosition;
if (newElementPos == lastElementPos)
{
if (addToExisting)
{
editAction = EditAction.Append;
}
else
{
editAction = EditAction.Update;
}
return(lastElement);
}
if (newElementPos > lastElementPos) //We need to add the new element at the end
{
editAction = EditAction.Append;
return(lastElement);
}
}
int instanceElementPos = -1;
XElement instanceElem = null;
IEnumerator <XElement> enumerator = parentElement.Elements().GetEnumerator();
while (enumerator.MoveNext())
{
instanceElem = enumerator.Current;
instanceElementPos = GetElementPosition(instanceElem.Name);
if (instanceElementPos == newElementPos)
{
if (!addToExisting) //Matching element found for update
{
editAction = EditAction.Update;
return(instanceElem);
}
}
else if (instanceElementPos > newElementPos) //Found first element greater than new position
{
editAction = EditAction.AddBefore;
return(instanceElem);
}
}
//Either its the first element being added or Scanned the whole list, end of list reached
editAction = EditAction.Append;
return(instanceElem);
}
private void CheckSubstitutionGroup(NamedContentModelEntity named)
{
SubstitutedContentModelEntity substEntity = named as SubstitutedContentModelEntity;
if (substEntity != null)
{
foreach (XName name in substEntity.Members) //Add Subst members to the lookup table
{
if (!elementPositions.ContainsKey(name))
{
elementPositions.Add(name, named);
}
}
}
}
private void CheckSubstitutionGroup(NamedContentModelEntity named)
{
SubstitutedContentModelEntity substEntity = named as SubstitutedContentModelEntity;
if (substEntity != null)
{
XName[] members = substEntity.Members;
for (int i = 0; i < (int)members.Length; i++)
{
XName name = members[i];
if (!this.elementPositions.ContainsKey(name))
{
this.elementPositions.Add(name, named);
}
}
}
}
internal void AddElementInPosition(XName name, XElement parentElement, bool addToExisting, XTypedElement xObj)
{
NamedContentModelEntity namedEntity = this.GetNamedEntity(name);
if (namedEntity == null)
{
throw new LinqToXsdException(string.Concat("Name does not belong in content model. Cannot set value for child ", name.LocalName));
}
EditAction editAction = EditAction.None;
XElement elementMarker = this.FindElementPosition(namedEntity, parentElement, addToExisting, out editAction);
XElement newElement = XTypedServices.GetXElement(xObj, name);
Debug.Assert(xObj != null);
switch (editAction)
{
case EditAction.AddBefore:
{
elementMarker.AddBeforeSelf(newElement);
return;
}
case EditAction.AddAfter:
{
return;
}
case EditAction.Append:
{
parentElement.Add(newElement);
return;
}
case EditAction.Update:
{
elementMarker.AddBeforeSelf(newElement);
elementMarker.Remove();
return;
}
default:
{
return;
}
}
}
protected SchemaAwareContentModelEntity(params ContentModelEntity[] items)
{
int num;
this.elementPositions = new Dictionary <XName, NamedContentModelEntity>();
ContentModelEntity[] contentModelEntityArray = items;
for (int i = 0; i < (int)contentModelEntityArray.Length; i++)
{
ContentModelEntity cmEntity = contentModelEntityArray[i];
NamedContentModelEntity named = cmEntity as NamedContentModelEntity;
if (named == null)
{
SchemaAwareContentModelEntity scmEntity = cmEntity as SchemaAwareContentModelEntity;
Debug.Assert(scmEntity != null);
foreach (NamedContentModelEntity childEntity in scmEntity.ElementPositions.Values)
{
if (!this.elementPositions.ContainsKey(childEntity.Name))
{
SchemaAwareContentModelEntity schemaAwareContentModelEntity = this;
int num1 = schemaAwareContentModelEntity.last;
num = num1;
schemaAwareContentModelEntity.last = num1 + 1;
childEntity.ElementPosition = num;
this.elementPositions.Add(childEntity.Name, childEntity);
}
}
}
else if (!this.elementPositions.ContainsKey(named.Name))
{
SchemaAwareContentModelEntity schemaAwareContentModelEntity1 = this;
int num2 = schemaAwareContentModelEntity1.last;
num = num2;
schemaAwareContentModelEntity1.last = num2 + 1;
named.ElementPosition = num;
named.ParentContentModel = this;
this.elementPositions.Add(named.Name, named);
this.CheckSubstitutionGroup(named);
}
}
}
private void CheckChoiceBranches(XName currentBranch, XElement parentElement)
{
List <XElement> elementsToRemove = new List <XElement>();
NamedContentModelEntity otherBranch = null;
foreach (XElement instanceElement in parentElement.Elements())
{
if (!(instanceElement.Name == currentBranch))
{
otherBranch = base.GetNamedEntity(instanceElement.Name);
if (otherBranch != null)
{
Debug.Assert(otherBranch.ParentContentModel == this);
elementsToRemove.Add(instanceElement);
}
}
}
foreach (XElement elementToRemove in elementsToRemove)
{
elementToRemove.Remove();
}
}
internal XElement FindElementPosition(NamedContentModelEntity namedEntity, XElement parentElement, bool addToExisting, out EditAction editAction) {
Debug.Assert(namedEntity != null);
editAction = EditAction.None;
int newElementPos = namedEntity.ElementPosition;
XElement lastElement = GetLastElement(parentElement);
if (lastElement != null) { //Optimization to check last first
int lastElementPos = GetNamedEntity(lastElement.Name).ElementPosition;
if (newElementPos == lastElementPos) {
if (addToExisting) {
editAction = EditAction.Append;
}
else {
editAction = EditAction.Update;
}
return lastElement;
}
if (newElementPos > lastElementPos) { //We need to add the new element at the end
editAction = EditAction.Append;
return lastElement;
}
}
int instanceElementPos = -1;
XElement instanceElem = null;
IEnumerator<XElement> enumerator = parentElement.Elements().GetEnumerator();
while(enumerator.MoveNext()) {
instanceElem = enumerator.Current;
instanceElementPos = GetElementPosition(instanceElem.Name);
if (instanceElementPos == newElementPos) {
if (!addToExisting) { //Matching element found for update
editAction = EditAction.Update;
return instanceElem;
}
}
else if (instanceElementPos > newElementPos) { //Found first element greater than new position
editAction = EditAction.AddBefore;
return instanceElem;
}
}
//Either its the first element being added or Scanned the whole list, end of list reached
editAction = EditAction.Append;
return instanceElem;
}
private void CheckSubstitutionGroup(NamedContentModelEntity named) {
SubstitutedContentModelEntity substEntity = named as SubstitutedContentModelEntity;
if (substEntity != null) {
foreach(XName name in substEntity.Members) { //Add Subst members to the lookup table
if (!elementPositions.ContainsKey(name)) {
elementPositions.Add(name, named);
}
}
}
}
internal int GetElementPosition(XName name)
{
NamedContentModelEntity named = this.GetNamedEntity(name);
return(named == null ? -1 : named.ElementPosition);
}
