private void ProcessGroup(InstanceGroup grp)
{
if (grp is InstanceElement)
{
ProcessElement((InstanceElement)grp);
}
else
{ //Its a group node of sequence or choice
if (!grp.IsChoice)
{
for (int i = 0; i < grp.Occurs; i++)
{
InstanceGroup childGroup = grp.Child;
while (childGroup != null)
{
ProcessGroup(childGroup);
childGroup = childGroup.Sibling;
}
}
}
else
{
ProcessChoiceGroup(grp);
}
}
}
private void ProcessChoiceGroup(InstanceGroup grp)
{
for (int i = 0; i < grp.Occurs; i++)
{ //Cyclically iterate over the children of choice
ProcessGroup(grp.GetChild(i % grp.NoOfChildren));
}
}
private void GenerateGroupBase(XmlSchemaGroupBase gBase, InstanceGroup grp)
{
foreach (XmlSchemaParticle particle1 in gBase.Items)
{
GenerateParticle(particle1, false, grp);
}
}
private void GenerateParticle(XmlSchemaParticle particle, bool root, InstanceGroup iGrp)
{
decimal max;
max = particle.MaxOccurs >= _maxThreshold ? _maxThreshold : particle.MaxOccurs;
max = particle.MinOccurs > max ? particle.MinOccurs : max;
if (particle is XmlSchemaSequence)
{
XmlSchemaSequence seq = (XmlSchemaSequence)particle;
InstanceGroup grp = new InstanceGroup();
grp.Occurs = max;
iGrp.AddChild(grp);
GenerateGroupBase(seq, grp);
}
else if (particle is XmlSchemaChoice)
{
XmlSchemaChoice ch = (XmlSchemaChoice)particle;
if (ch.MaxOccurs == 1)
{
XmlSchemaParticle pt = (XmlSchemaParticle)(ch.Items[0]);
GenerateParticle(pt, false, iGrp);
}
else
{
InstanceGroup grp = new InstanceGroup();
grp.Occurs = max;
grp.IsChoice = true;
iGrp.AddChild(grp);
GenerateGroupBase(ch, grp);
}
}
else if (particle is XmlSchemaAll)
{
GenerateAll((XmlSchemaAll)particle, iGrp);
}
else if (particle is XmlSchemaElement)
{
XmlSchemaElement elem = particle as XmlSchemaElement;
XmlSchemaChoice ch = null;
if (!elem.RefName.IsEmpty)
{
ch = GetSubstitutionChoice(elem);
}
if (ch != null)
{
GenerateParticle(ch, false, iGrp);
}
else
{
GenerateElement(elem, false, iGrp, null);
}
}
else if (particle is XmlSchemaAny && particle.MinOccurs > 0)
{ //Generate any only if we should
GenerateAny((XmlSchemaAny)particle, iGrp);
}
}
private void ProcessElement(InstanceElement elem)
{
if (_instanceElementsProcessed[elem] != null)
{
return;
}
_instanceElementsProcessed.Add(elem, elem);
for (int i = 0; i < elem.Occurs; i++)
{
_writer.WriteStartElement(elem.QualifiedName.Name, elem.QualifiedName.Namespace);
ProcessElementAttrs(elem);
ProcessComment(elem);
CheckIfMixed(elem);
if (elem.IsNillable)
{
if (elem.GenNil)
{
WriteNillable();
elem.GenNil = false;
_writer.WriteEndElement();
continue;
}
else
{
elem.GenNil = true;
}
}
if (elem.ValueGenerator != null)
{
if (elem.IsFixed)
{
_writer.WriteString(elem.FixedValue);
}
else if (elem.HasDefault)
{
_writer.WriteString(elem.DefaultValue);
}
else
{
_writer.WriteString(elem.ValueGenerator.GenerateValue());
}
}
else
{
InstanceGroup childGroup = elem.Child;
while (childGroup != null)
{
ProcessGroup(childGroup);
childGroup = childGroup.Sibling;
}
}
_writer.WriteEndElement();
}
_instanceElementsProcessed.Remove(elem);
}
private void GenerateAll(XmlSchemaAll all, InstanceGroup grp)
{
XmlSchemaParticle pt;
for (int i = all.Items.Count; i > 0; i--)
{
pt = (XmlSchemaParticle)(all.Items[i - 1]);
GenerateParticle(pt, false, grp);
}
}
private InstanceElement GetParentInstanceElement(InstanceGroup grp)
{
InstanceElement elem = grp as InstanceElement;
while (elem == null && grp != null)
{
grp = grp.Parent;
elem = grp as InstanceElement;
}
return(elem);
}
private void ProcessInstanceTree(InstanceElement rootElement)
{
if (rootElement != null)
{
_instanceElementsProcessed.Add(rootElement, rootElement);
_writer.WriteStartElement(rootElement.QualifiedName.Name, _rootTargetNamespace);
_writer.WriteAttributeString("xmlns", "xsi", null, NsXsi);
ProcessElementAttrs(rootElement);
ProcessComment(rootElement);
CheckIfMixed(rootElement);
if (rootElement.ValueGenerator != null)
{
if (rootElement.IsFixed)
{
_writer.WriteString(rootElement.FixedValue);
}
else if (rootElement.HasDefault)
{
_writer.WriteString(rootElement.DefaultValue);
}
else
{
_writer.WriteString(rootElement.ValueGenerator.GenerateValue());
}
}
else
{
InstanceGroup group = rootElement.Child;
while (group != null)
{
ProcessGroup(group);
group = group.Sibling;
}
}
_writer.WriteEndElement();
}
else
{
_writer.WriteComment("Schema did not lead to generation of a valid XML document");
}
}
private void GenerateAny(XmlSchemaAny any, InstanceGroup grp)
{
InstanceElement parentElem = grp as InstanceElement;
char[] whitespace = new char[] { ' ', '\t', '\n', '\r' };
InstanceElement elem = null;
XmlSchemaElement anyElem = null;
string namespaceList = any.Namespace;
if (namespaceList == null)
{ //no namespace defaults to "##any"
namespaceList = "##any";
}
if (any.ProcessContents == XmlSchemaContentProcessing.Skip || any.ProcessContents == XmlSchemaContentProcessing.Lax)
{
if (namespaceList == "##any" || namespaceList == "##targetNamespace")
{
elem = new InstanceElement(new XmlQualifiedName("any_element", _rootTargetNamespace));
}
else if (namespaceList == "##local")
{
elem = new InstanceElement(new XmlQualifiedName("any_element", string.Empty));
}
else if (namespaceList == "##other")
{
elem = new InstanceElement(new XmlQualifiedName("any_element", "otherNS"));
}
if (elem != null)
{
elem.ValueGenerator = XmlValueGenerator._anyGenerator;
elem.Occurs = any.MaxOccurs >= _maxThreshold ? _maxThreshold : any.MaxOccurs;
elem.Occurs = any.MinOccurs > elem.Occurs ? any.MinOccurs : elem.Occurs;
grp.AddChild(elem);
return;
}
}
//ProcessContents = strict || namespaceList is actually a list of namespaces
switch (namespaceList)
{
case "##any":
case "##targetNamespace":
anyElem = GetElementFromNS(_rootTargetNamespace);
break;
case "##other":
XmlSchema anySchema = GetParentSchema(any);
anyElem = GetElementFromNS(anySchema.TargetNamespace, true);
break;
case "##local": //Shd get local elements in some schema
anyElem = GetElementFromNS(string.Empty);
break;
default:
foreach (string ns in namespaceList.Split(whitespace))
{
if (ns == "##targetNamespace")
{
anyElem = GetElementFromNS(_rootTargetNamespace);
}
else if (ns == "##local")
{
anyElem = GetElementFromNS(string.Empty);
}
else
{
anyElem = GetElementFromNS(ns);
}
if (anyElem != null)
{ //found a match
break;
}
}
break;
}
if (anyElem != null && GenerateElement(anyElem, false, grp, any))
{
return;
}
else
{ //Write comment in generated XML that match for wild card cd not be found.
if (parentElem == null)
{
parentElem = GetParentInstanceElement(grp);
}
if (parentElem.Comment.Length == 0)
{ //For multiple wildcards in the same element, generate comment only once
parentElem.Comment.Append(" Element Wild card could not be matched. Generated XML may not be valid. ");
}
}
}
private bool GenerateElement(XmlSchemaElement e, bool root, InstanceGroup parentElem, XmlSchemaAny any)
{
XmlSchemaElement eGlobalDecl = e;
if (!e.RefName.IsEmpty)
{
eGlobalDecl = (XmlSchemaElement)_schemaSet.GlobalElements[e.QualifiedName];
}
if (!eGlobalDecl.IsAbstract)
{
InstanceElement elem = (InstanceElement)_elementTypesProcessed[eGlobalDecl];
if (elem != null)
{
Debug.Assert(!root);
if (any == null && e.MinOccurs > 0)
{ //If not generating for any or optional ref to cyclic global element
decimal occurs = e.MaxOccurs;
if (e.MaxOccurs >= _maxThreshold)
{
occurs = _maxThreshold;
}
if (e.MinOccurs > occurs)
{
occurs = e.MinOccurs;
}
parentElem.AddChild(elem.Clone(occurs));
}
return(false);
}
elem = new InstanceElement(eGlobalDecl.QualifiedName);
if (root)
{
_instanceRoot = elem;
}
else
{
parentElem.AddChild(elem);
}
//Get minOccurs, maxOccurs alone from the current particle, everything else pick up from globalDecl
if (any != null)
{ //Element from any
elem.Occurs = any.MaxOccurs >= _maxThreshold ? _maxThreshold : any.MaxOccurs;
elem.Occurs = any.MinOccurs > elem.Occurs ? any.MinOccurs : elem.Occurs;
}
else
{
elem.Occurs = e.MaxOccurs >= _maxThreshold ? _maxThreshold : e.MaxOccurs;
elem.Occurs = e.MinOccurs > elem.Occurs ? e.MinOccurs : elem.Occurs;
}
elem.DefaultValue = eGlobalDecl.DefaultValue;
elem.FixedValue = eGlobalDecl.FixedValue;
elem.IsNillable = eGlobalDecl.IsNillable;
if (eGlobalDecl.ElementSchemaType == _anyType)
{
elem.ValueGenerator = XmlValueGenerator._anyGenerator;
}
else
{
XmlSchemaComplexType ct = eGlobalDecl.ElementSchemaType as XmlSchemaComplexType;
if (ct != null)
{
_elementTypesProcessed.Add(eGlobalDecl, elem);
if (!ct.IsAbstract)
{
elem.IsMixed = ct.IsMixed;
ProcessComplexType(ct, elem);
}
else
{ // Ct is abstract, need to generate instance elements with xsi:type
XmlSchemaComplexType dt = GetDerivedType(ct);
if (dt != null)
{
elem.XsiType = dt.QualifiedName;
ProcessComplexType(dt, elem);
}
}
}
else
{ //elementType is XmlSchemaSimpleType
elem.ValueGenerator = XmlValueGenerator.CreateGenerator(eGlobalDecl.ElementSchemaType.Datatype, _listLength);
}
}
if (elem.ValueGenerator != null && elem.ValueGenerator.Prefix == null)
{
elem.ValueGenerator.Prefix = elem.QualifiedName.Name;
}
return(true);
} // End of e.IsAbstract
return(false);
}
