/**
* Given an XSD Complex Type Definition, return the model group containing its child elements.
*
* @param cType
* @return the model group
*/
public static XSDModelGroup getModelGroup(XSDComplexTypeDefinition cType) {
XSDParticle particle = cType.getComplexType();
// In cases where cType doesn't have a model group AND cType has a parent with a modelgroup, the
// call above will rather unexpectedly give us cType's PARENT's model group, rather than the
// null we
// might expect. We don't want that here, if the model group returned is null or belongs to
// someone
// other than us, return null
if (particle == null || particle.eContainer() != cType) {
return null;
}
// get the model group
Object particleContent = particle.getContent();
XSDModelGroup group = null;
if (particleContent instanceof XSDModelGroupDefinition) {
group =
((XSDModelGroupDefinition) particleContent)
.getResolvedModelGroupDefinition()
.getModelGroup();
} else if (particleContent instanceof XSDModelGroup) {
group = (XSDModelGroup) particleContent;
}
if (group == null) {
return null;
}
// if the content of the complex type is empty then the content
// must be in the complexContent, ie. we're extending another BO.
// if the group and the type are not in the same resource then
// we are extending another BO and we don't want to show inherited
// attributes.
if (group.getContents().isEmpty() || group.eResource() != cType.eResource()) {
// if we are extending another BO then get the elements
// we are adding
if (cType.getBaseType() != null) {
XSDComplexTypeContent content = cType.getContent();
if (content instanceof XSDParticle) {
particleContent = ((XSDParticle) content).getContent();
if (particleContent instanceof XSDModelGroupDefinition) {
group =
((XSDModelGroupDefinition) particleContent)
.getResolvedModelGroupDefinition()
.getModelGroup();
} else if (particleContent instanceof XSDModelGroup) {
group = (XSDModelGroup) particleContent;
}
}
}
}
return group;
}
