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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
 *     notice, this list of conditions and the following disclaimer in the
 *     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,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 */

package com.sun.msv.relaxns.reader;

import com.sun.msv.reader.SimpleState;
import com.sun.msv.reader.State;
import com.sun.msv.util.StartTagInfo;

/**
 * parses <grammar> element.
 * 
 * @author Kohsuke KAWAGUCHI
 */
public class GrammarState extends SimpleState
{
    /** gets reader in type-safe fashion */
    protected RELAXNSReader getReader() { return (RELAXNSReader)reader; }

    protected State createChildState( StartTagInfo tag )
    {
        if(tag.localName.equals("namespace"))    return new NamespaceState();
        if(tag.localName.equals("topLevel"))    return new TopLevelState();
        if(tag.localName.equals("include"))        return new IncludeGrammarState();
        
        return null;
    }
    
    protected void startSelf()
    {
        super.startSelf();
        
        {// check relaxNamespaceVersion
            final String nsVersion = startTag.getAttribute("relaxNamespaceVersion");
            if( nsVersion==null )
                reader.reportWarning( RELAXNSReader.ERR_MISSING_ATTRIBUTE, "module", "relaxNamespaceVersion" );
            else
            if(!"1.0".equals(nsVersion))
                reader.reportWarning( RELAXNSReader.WRN_ILLEGAL_RELAXNAMESPACE_VERSION, nsVersion );
        }
    }
}