/*******************************************************************************
 * Copyright (c) 2004 Actuate Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *  Actuate Corporation  - initial API and implementation
 *******************************************************************************/

package org.eclipse.birt.report.model.parser;

import org.eclipse.birt.report.model.api.metadata.IElementDefn;
import org.eclipse.birt.report.model.core.DesignElement;
import org.eclipse.birt.report.model.core.Module;
import org.eclipse.birt.report.model.elements.SimpleDataSet;
import org.eclipse.birt.report.model.elements.TemplateParameterDefinition;
import org.eclipse.birt.report.model.util.XMLParserException;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

/**
 * This class parse a data set.
 * 
 */

class SimpleDataSetState extends ReportElementState
{

	/**
	 * The data set being built.
	 */

	protected SimpleDataSet element;

	/**
	 * Constructs the data set state with the design parser handler.
	 * 
	 * @param theHandler
	 *            the design file parser handler
	 */

	public SimpleDataSetState( ModuleParserHandler theHandler )
	{
		super( theHandler, theHandler.getModule( ), Module.DATA_SET_SLOT );
	}

	/**
	 * Constructs the data set state with the design parser handler, the
	 * container element and the container slot of the data set.
	 * 
	 * @param handler
	 *            the design file parser handler
	 * @param theContainer
	 *            the element that contains this one
	 * @param slot
	 *            the slot in which this element appears
	 */

	public SimpleDataSetState( ModuleParserHandler handler,
			DesignElement theContainer, int slot )
	{
		super( handler, theContainer, slot );
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.parser.DesignParseState#getElement()
	 */

	public DesignElement getElement( )
	{
		return element;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.util.AbstractParseState#parseAttrs(org.xml.sax.Attributes)
	 */

	public void parseAttrs( Attributes attrs ) throws XMLParserException
	{
		initElement( attrs, true );
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.util.AbstractParseState#end()
	 */

	public void end( ) throws SAXException
	{
		DesignElement element = getElement( );
		TemplateParameterDefinition refTemplateParam = element
				.getTemplateParameterElement( handler.getModule( ) );
		if ( refTemplateParam != null )
		{
			DesignElement defaultElement = refTemplateParam.getDefaultElement( );
			IElementDefn elementDefn = element.getDefn( );
			IElementDefn defaultElementDefn = defaultElement.getDefn( );

			if ( elementDefn != defaultElementDefn )
			{
				handler
						.getErrorHandler( )
						.semanticError(
								new DesignParserException(
										new String[]{
												element.getIdentifier( ),
												refTemplateParam
														.getIdentifier( )},
										DesignParserException.DESIGN_EXCEPTION_INCONSISTENT_TEMPLATE_ELEMENT_TYPE ) );
			}
		}

		super.end( );
	}
}