Bug 176450 Support link to CSS Feature(Model Part)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/css/StyleSheetLoader.java
}
		catch ( IOException e )
		{
			throw new StyleSheetException(
					StyleSheetException.DESIGN_EXCEPTION_STYLE_SHEET_NOT_FOUND,
					e );
		}
		finally
		{
			try
			{
				source.close( );
			}
			catch ( IOException e )
			{
				
			}
		}
		if ( ss == null )
			return null;
		CssStyleSheet styleSheet = new CssStyleSheet( );
		List rules = ss.getRules( );
		for ( int i = 0; i < rules.size( ); i++ )
		{
			CSSRule rule = (CSSRule) rules.get( i );
			loadStyle( styleSheet, rule );
		}
		styleSheet.addWarning( warnings );
		styleSheet.setErrorHandler( parser.getErrorHandler( ) );
		return styleSheet;