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package com.sun.tools.xjc.reader.xmlschema;
import java.util.Iterator;
import com.sun.xml.xsom.XSWildcard;
import com.sun.xml.xsom.visitor.XSWildcardFunction;
import org.kohsuke.rngom.nc.AnyNameExceptNameClass;
import org.kohsuke.rngom.nc.ChoiceNameClass;
import org.kohsuke.rngom.nc.NameClass;
import org.kohsuke.rngom.nc.NsNameClass;
/**
* Builds a name class representation of a wildcard.
*
* <p>
* Singleton. Use the build method to create a NameClass.
*
* @author
* Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
*/
public final class WildcardNameClassBuilder implements XSWildcardFunction<NameClass> {
private WildcardNameClassBuilder() {}
private static final XSWildcardFunction<NameClass> theInstance =
new WildcardNameClassBuilder();
public static NameClass build( XSWildcard wc ) {
return wc.apply(theInstance);
}
public NameClass any(XSWildcard.Any wc) {
return NameClass.ANY;
}
public NameClass other(XSWildcard.Other wc) {
return new AnyNameExceptNameClass(
new ChoiceNameClass(
new NsNameClass(""),
new NsNameClass(wc.getOtherNamespace())));
}
public NameClass union(XSWildcard.Union wc) {
NameClass nc = null;
for (Iterator itr = wc.iterateNamespaces(); itr.hasNext();) {
String ns = (String) itr.next();
if(nc==null) nc = new NsNameClass(ns);
else
nc = new ChoiceNameClass(nc,new NsNameClass(ns));
}
// there should be at least one.
assert nc!=null;
return nc;
}
}