aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.tools.internal.xjc.reader.xmlschema;
aoqi@0: 
aoqi@0: import java.util.Iterator;
aoqi@0: 
aoqi@0: import com.sun.xml.internal.xsom.XSWildcard;
aoqi@0: import com.sun.xml.internal.xsom.visitor.XSWildcardFunction;
aoqi@0: 
aoqi@0: import com.sun.xml.internal.rngom.nc.AnyNameExceptNameClass;
aoqi@0: import com.sun.xml.internal.rngom.nc.ChoiceNameClass;
aoqi@0: import com.sun.xml.internal.rngom.nc.NameClass;
aoqi@0: import com.sun.xml.internal.rngom.nc.NsNameClass;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Builds a name class representation of a wildcard.
aoqi@0:  *
aoqi@0:  * <p>
aoqi@0:  * Singleton. Use the build method to create a NameClass.
aoqi@0:  *
aoqi@0:  * @author
aoqi@0:  *     Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
aoqi@0:  */
aoqi@0: public final class WildcardNameClassBuilder implements XSWildcardFunction<NameClass> {
aoqi@0:     private WildcardNameClassBuilder() {}
aoqi@0: 
aoqi@0:     private static final XSWildcardFunction<NameClass> theInstance =
aoqi@0:         new WildcardNameClassBuilder();
aoqi@0: 
aoqi@0:     public static NameClass build( XSWildcard wc ) {
aoqi@0:         return wc.apply(theInstance);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public NameClass any(XSWildcard.Any wc) {
aoqi@0:         return NameClass.ANY;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public NameClass other(XSWildcard.Other wc) {
aoqi@0:         return new AnyNameExceptNameClass(
aoqi@0:             new ChoiceNameClass(
aoqi@0:                 new NsNameClass(""),
aoqi@0:                 new NsNameClass(wc.getOtherNamespace())));
aoqi@0:     }
aoqi@0: 
aoqi@0:     public NameClass union(XSWildcard.Union wc) {
aoqi@0:         NameClass nc = null;
aoqi@0:         for (Iterator itr = wc.iterateNamespaces(); itr.hasNext();) {
aoqi@0:             String ns = (String) itr.next();
aoqi@0: 
aoqi@0:             if(nc==null)    nc = new NsNameClass(ns);
aoqi@0:             else
aoqi@0:                 nc = new ChoiceNameClass(nc,new NsNameClass(ns));
aoqi@0:         }
aoqi@0: 
aoqi@0:         // there should be at least one.
aoqi@0:         assert nc!=null;
aoqi@0: 
aoqi@0:         return nc;
aoqi@0:     }
aoqi@0: 
aoqi@0: }