/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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package com.sun.tools.internal.xjc.util;

import java.util.Collections;

import java.util.Iterator;

import javax.xml.namespace.NamespaceContext;

import com.sun.xml.internal.xsom.XmlString;

import org.relaxng.datatype.ValidationContext;

/**

 * Take a {@link ValidationContext} and make it look like a {@link NamespaceContext}.

 *

 * @author Kohsuke Kawaguchi

 */

public final class NamespaceContextAdapter implements NamespaceContext {

    private XmlString xstr;

    public NamespaceContextAdapter(XmlString xstr) {

        this.xstr = xstr;

    }

    public String getNamespaceURI(String prefix) {

        return xstr.resolvePrefix(prefix);

    }

    public String getPrefix(String namespaceURI) {

        return null;

    }

    public Iterator getPrefixes(String namespaceURI) {

        return Collections.EMPTY_LIST.iterator();

    }

}