private Enum createCorbaEnum(XmlSchemaSimpleTypeRestriction restrictionType, QName name,
                             QName schematypeName) {
    Enum corbaEnum = new Enum();
    corbaEnum.setType(schematypeName);
    corbaEnum.setName(name.getLocalPart());
    corbaEnum.setQName(name);

    corbaEnum.setRepositoryID(REPO_STRING + name.getLocalPart().replace('.', '/') + IDL_VERSION);

    for (XmlSchemaFacet f : restrictionType.getFacets()) {
        XmlSchemaEnumerationFacet val = (XmlSchemaEnumerationFacet)f;
        Enumerator enumerator = new Enumerator();
        enumerator.setValue(val.getValue().toString());
        corbaEnum.getEnumerator().add(enumerator);
    }
    return corbaEnum;
}
 

@Override
public void writeSchema(XmlSchema root) {

    XmlSchemaSimpleType simple = new XmlSchemaSimpleType(root, true);
    simple.setName(getSchemaType().getLocalPart());
    XmlSchemaSimpleTypeRestriction restriction = new XmlSchemaSimpleTypeRestriction();
    restriction.setBaseTypeName(Constants.XSD_STRING);
    simple.setContent(restriction);

    Object[] constants = getTypeClass().getEnumConstants();

    List<XmlSchemaFacet> facets = restriction.getFacets();
    for (Object constant : constants) {
        XmlSchemaEnumerationFacet f = new XmlSchemaEnumerationFacet();
        f.setValue(getValue(constant));
        facets.add(f);
    }
}
 

/**
 * Create an XML schema enumeration facet.
 * 
 * @param conditionValue the value to set
 * @return an XML schema enumeration facet
 */
protected XmlSchemaEnumerationFacet createEnumerationFacet(
        final String conditionValue) {
    XmlSchemaEnumerationFacet xmlSchemaEnumerationFacet = new XmlSchemaEnumerationFacet();
    xmlSchemaEnumerationFacet.setValue(conditionValue);
    return xmlSchemaEnumerationFacet;
}
 

private boolean isEnumeration(XmlSchemaSimpleTypeRestriction restriction) {

        if ((restriction == null) || (restriction.getFacets().isEmpty())
            || (restriction.getBaseTypeName() == null)) {
            return false;
        }


        for (XmlSchemaFacet facet : restriction.getFacets()) {
            if (facet instanceof XmlSchemaEnumerationFacet) {
                return true;
            }
        }
        return false;
    }
 

/**
 * Return true if a simple type is a straightforward XML Schema representation of an enumeration.
 * If we discover schemas that are 'enum-like' with more complex structures, we might
 * make this deal with them.
 * @param type Simple type, possible an enumeration.
 * @return true for an enumeration.
 */
public static boolean isEumeration(XmlSchemaSimpleType type) {
    XmlSchemaSimpleTypeContent content = type.getContent();
    if (!(content instanceof XmlSchemaSimpleTypeRestriction)) {
        return false;
    }
    XmlSchemaSimpleTypeRestriction restriction = (XmlSchemaSimpleTypeRestriction) content;
    List<XmlSchemaFacet> facets = restriction.getFacets();
    for (XmlSchemaFacet facet : facets) {
        if (!(facet instanceof XmlSchemaEnumerationFacet)) {
            return false;
        }
    }
    return true;
}
 

/**
 * Retrieve the string values for an enumeration.
 * @param type
 */
public static List<String> enumeratorValues(XmlSchemaSimpleType type) {
    XmlSchemaSimpleTypeContent content = type.getContent();
    XmlSchemaSimpleTypeRestriction restriction = (XmlSchemaSimpleTypeRestriction) content;
    List<XmlSchemaFacet> facets = restriction.getFacets();
    List<String> values = new ArrayList<>();
    for (XmlSchemaFacet facet : facets) {
        XmlSchemaEnumerationFacet enumFacet = (XmlSchemaEnumerationFacet) facet;
        values.add(enumFacet.getValue().toString());
    }
    return values;
}
 

private static final EnumLiteral enumLiteralFromFacet(final XmlSchemaEnumerationFacet enumFacet,
        final Xsd2UmlConfig context) {
    final List<TaggedValue> annotation = annotations(enumFacet, context);
    // We're assuming here that the whiteSpace facet for this enumeration
    // type is "collapse".
    // In general, this will not be true and we will have to compute it.
    final String name = XmlTools.collapseWhitespace(enumFacet.getValue().toString());
    return new EnumLiteral(name, annotation);
}
 

public void visit(AST enumNode) {
    // <enum_type> ::= "enum" <identifier> "{" <enumerator> {"," <enumerator>}* "}"
    // <enumerator> ::= <identifier>


    AST enumNameNode = enumNode.getFirstChild();
    Scope enumNameScope = new Scope(getScope(), enumNameNode);

    // xmlschema:enum
    XmlSchemaSimpleType enumSchemaSimpleType = new XmlSchemaSimpleType(schema, true);
    enumSchemaSimpleType.setName(mapper.mapToQName(enumNameScope));

    XmlSchemaSimpleTypeRestriction enumSchemaSimpleTypeRestriction = new XmlSchemaSimpleTypeRestriction();
    enumSchemaSimpleTypeRestriction.setBaseTypeName(Constants.XSD_STRING);

    //XmlSchemaSimpleTypeContent xmlSchemaSimpleTypeContent = enumSchemaSimpleTypeRestriction;
    enumSchemaSimpleType.setContent(enumSchemaSimpleTypeRestriction);


    // corba:enum
    Enum corbaEnum = new Enum();
    corbaEnum.setQName(new QName(typeMap.getTargetNamespace(), enumNameScope.toString()));
    corbaEnum.setRepositoryID(enumNameScope.toIDLRepositoryID());
    corbaEnum.setType(enumSchemaSimpleType.getQName());


    AST node = enumNameNode.getNextSibling();
    while (node != null) {
        // xmlschema:enumeration
        XmlSchemaEnumerationFacet enumeration = new XmlSchemaEnumerationFacet();
        enumeration.setValue(node.toString());
        enumSchemaSimpleTypeRestriction.getFacets().add(enumeration);

        // corba:enumerator
        Enumerator enumerator = new Enumerator();
        enumerator.setValue(node.toString());
        corbaEnum.getEnumerator().add(enumerator);

        node = node.getNextSibling();
    }

    // add corbaType
    typeMap.getStructOrExceptionOrUnion().add(corbaEnum);

    // REVISIT: are there assignments needed?
    setSchemaType(enumSchemaSimpleType);
    setCorbaType(corbaEnum);
}
 

public static XmlTypeInfo createXmlTypeInfo(QName qname, XmlSchemaType type) {
    if (qname == null) throw new NullPointerException("qname is null");
    if (type == null) throw new NullPointerException("type is null");

    XmlTypeInfo typeInfo = new XmlTypeInfo();
    typeInfo.qname = qname;
    typeInfo.anonymous = qname.getLocalPart().indexOf('>') >= 0;

    if (type instanceof XmlSchemaSimpleType) {
        XmlSchemaSimpleType simpleType = (XmlSchemaSimpleType) type;
        XmlSchemaSimpleTypeContent content = simpleType.getContent();
        if (content instanceof XmlSchemaSimpleTypeList) {
            XmlSchemaSimpleTypeList list = (XmlSchemaSimpleTypeList) content;
            typeInfo.simpleBaseType = list.getItemType().getQName();

            // this is a list
            typeInfo.listType = true;
        } else if (content instanceof XmlSchemaSimpleTypeRestriction) {
            XmlSchemaSimpleTypeRestriction restriction = (XmlSchemaSimpleTypeRestriction) content;
            typeInfo.simpleBaseType = restriction.getBaseTypeName();

            // is this an enumeration?
            for (Iterator iterator = restriction.getFacets().getIterator(); iterator.hasNext(); ) {
                if (iterator.next() instanceof XmlSchemaEnumerationFacet) {
                    typeInfo.enumType = true;
                    break;
                }

            }
        }
    } else if (type instanceof XmlSchemaComplexType) {
        XmlSchemaComplexType complexType = (XmlSchemaComplexType) type;

        // SOAP array component type
        typeInfo.arrayComponentType = extractSoapArrayComponentType(complexType);

        // process attributes (skip soap arrays which have non-mappable attributes)
        if (!isSoapArray(complexType)) {
            XmlSchemaObjectCollection attributes = complexType.getAttributes();
            for (Iterator iterator = attributes.getIterator(); iterator.hasNext(); ) {
                Object item = iterator.next();
                if (item instanceof XmlSchemaAttribute) {
                    XmlSchemaAttribute attribute = (XmlSchemaAttribute) item;
                    Object old = typeInfo.attributes.put(attribute.getQName().getLocalPart(), attribute.getSchemaTypeName());
                    if (old != null) {
                        throw new IllegalArgumentException("Complain to your expert group member, spec does not support attributes with the same local name and differing namespaces: original: " + old + ", duplicate local name: " + attribute);
                    }
                }
            }
        }
    } else {
        LOG.warn("Unknown schema type class " + typeInfo.getClass().getName());
    }

    return typeInfo;
}