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/*
 * Copyright (c) 2001-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
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 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Oracle nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 */

package com.sun.msv.relaxns.reader;

import com.sun.msv.reader.AbortException;
import com.sun.msv.reader.ChildlessState;

/**
 * parses <include> element of RELAX Namespace.
 * 
 * @author Kohsuke KAWAGUCHI
 */
public class IncludeGrammarState extends ChildlessState
{
    protected void startSelf()
    {
        super.startSelf();
    
        final String href = startTag.getAttribute("grammarLocation");

        if(href==null) {
            // name attribute is required.
            reader.reportError( RELAXNSReader.ERR_MISSING_ATTRIBUTE,
                "include","grammarLocation");
            // recover by ignoring this include element
        } else
            try {
                reader.switchSource(this,href,new RootGrammarMergeState());
            } catch( AbortException e ) {
                // recover by ignoring this include element
            }
    }
}