/*
 * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
 * 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 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 com.sun.xml.internal.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();
    }
}