/*
 * @(#)$Id: DataParamState.java,v 1.4 2003/06/09 20:37:31 kk122374 Exp $
 *
 * Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * This software is the proprietary information of Sun Microsystems, Inc.  
 * Use is subject to license terms.
 * 
 */
package com.sun.msv.reader.trex.ng;

import org.relaxng.datatype.DatatypeException;

import com.sun.msv.reader.ChildlessState;

/**
 * parses &lt;param&gt; element inside &lt;data&gt; element.
 * 
 * @author <a href="mailto:kohsuke.kawaguchi@eng.sun.com">Kohsuke KAWAGUCHI</a>
 */
public class DataParamState extends ChildlessState {
    
    protected final StringBuffer text = new StringBuffer();
    
    public void characters( char[] buf, int from, int len ) {
        text.append(buf,from,len);
    }
    public void ignorableWhitespace( char[] buf, int from, int len ) {
        text.append(buf,from,len);
    }
    protected void endSelf() {
        final String facet = startTag.getAttribute("name");
        if(facet==null)
            reader.reportError( RELAXNGReader.ERR_MISSING_ATTRIBUTE, startTag.qName, "name" );
        else {
            try {
                ((DataState)parentState).typeBuilder.addParameter(
                    facet, text.toString(), reader );
            } catch( DatatypeException dte ) {
                reader.reportError( RELAXNGReader.ERR_BAD_FACET, facet, dte.getMessage() );
            }
        }        
        super.endSelf();
    }
}
