void CollectSubElements(XmlSchemaParticle particle)
{
// choice | sequence
XmlSchemaGroupBase sgb = particle as XmlSchemaGroupBase;
if (sgb != null)
{
foreach (XmlSchemaObject xso in sgb.Items)
{
XmlSchemaElement xse = xso as XmlSchemaElement;
if (xse != null)
{
// If it's a ref, xse.QualifiedName.Name is the name of the element
ElementWrapper elw = new ElementWrapper(xse, false);
if (elw.IsComplexType)
{
Add(this.complexSubElements, xse);
}
else
{
Add(this.simpleSubElements, xse);
}
continue;
}
XmlSchemaParticle subParticle = xso as XmlSchemaParticle;
if (subParticle != null)
{
CollectSubElements(subParticle);
continue;
}
}
}
// group
XmlSchemaGroupRef groupRef = particle as XmlSchemaGroupRef;
if (groupRef != null)
{
CollectSubElements(groupRef.Particle);
}
}
void AnalyzeElement(XmlSchemaElement element, XmlSchemaElement parentElement)
{
ElementWrapper elementWrapper = new ElementWrapper(element);
this.validationMessages.AddRange(elementWrapper.Warnings);
// Don't process simple types
if (!elementWrapper.IsComplexType)
{
return;
}
string elementTypeName = elementWrapper.TypeName;
bool skip = elementWrapper.IsComplexType && elementWrapper.SimpleSubElements.Count == 0 && elementWrapper.Attributes.Count == 0 && elementWrapper.ComplexSubElements.Count < 2;
bool isAlreadyGenerated = false;
if (!skip)
{
DataTable dt;
if (generatedDataSet.Tables.Contains(elementTypeName))
{
dt = generatedDataSet.Tables[elementTypeName];
isAlreadyGenerated = true;
}
else
{
dt = new DataTable(elementTypeName);
if (!string.IsNullOrEmpty(elementWrapper.Summary))
{
dt.ExtendedProperties.Add("summary", elementWrapper.Summary);
}
generatedDataSet.Tables.Add(dt);
}
if (!isAlreadyGenerated)
{
foreach (XmlSchemaAttribute attrObj in elementWrapper.Attributes)
{
Type t = GetClrType(attrObj.SchemaTypeName);
DataColumn dc = dt.Columns.Add(attrObj.Name, t);
XmlSchemaSummary sum = new XmlSchemaSummary(attrObj);
if (!string.IsNullOrEmpty(sum.Text))
{
dc.ExtendedProperties.Add("summary", sum.Text);
}
// dc.ExtendedProperties.Add( "schemaType", "Attribute" );
}
foreach (XmlSchemaElement subElement in elementWrapper.SimpleSubElements)
{
Type t = GetClrType(subElement);
if (/* subElement == element && */ t == null) //TODO: Check all cases with subElement != element
{
continue; // element seemed to have an own type, but it's xs:any or something undetermined
}
string columnName = null;
if (subElement == element)
{
columnName = "Value";
}
else
{
columnName = subElement.Name;
}
DataColumn dc = dt.Columns.Add(columnName, t);
dc.ExtendedProperties.Add("schemaType", "Element");
}
}
}
if (isAlreadyGenerated)
{
return;
}
//----------------------
foreach (XmlSchemaElement subEl in elementWrapper.ComplexSubElements)
{
ElementWrapper subElementWrapper = new ElementWrapper(subEl, false);
// Now add the relation
if (!(skip && parentElement == null)) // otherwise we omit the root element
{
RelationEntry relEntry = new RelationEntry();
string ownName = this.namespaceWrapper.GetXPath(subElementWrapper.QualifiedName);
if (!skip)
{
relEntry.ParentTable = elementTypeName;
relEntry.XPath = ownName;
}
else
{
ElementWrapper parentElementWrapper = new ElementWrapper(parentElement, false);
relEntry.ParentTable = parentElementWrapper.TypeName;
string parentName = this.namespaceWrapper.GetXPath(elementWrapper.QualifiedName);
relEntry.XPath = parentName + "/" + ownName;
}
relEntry.ChildTable = subElementWrapper.TypeName;
this.relations.Add(relEntry);
}
if (subElementWrapper.TypeName == elementTypeName)
{
continue; // don't walk into endless recursion
}
AnalyzeElement(subEl, skip ? parentElement : element);
}
}