franta-hg@1: /* ================================================================
franta-hg@1:  * Cewolf : Chart enabling Web Objects Framework
franta-hg@1:  * ================================================================
franta-hg@1:  *
franta-hg@1:  * Project Info:  http://cewolf.sourceforge.net
franta-hg@1:  * Project Lead:  Guido Laures (guido@laures.de);
franta-hg@1:  *
franta-hg@1:  * (C) Copyright 2002, by Guido Laures
franta-hg@1:  *
franta-hg@1:  * This library is free software; you can redistribute it and/or modify it under the terms
franta-hg@1:  * of the GNU Lesser General Public License as published by the Free Software Foundation;
franta-hg@1:  * either version 2.1 of the License, or (at your option) any later version.
franta-hg@1:  *
franta-hg@1:  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
franta-hg@1:  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
franta-hg@1:  * See the GNU Lesser General Public License for more details.
franta-hg@1:  *
franta-hg@1:  * You should have received a copy of the GNU Lesser General Public License along with this
franta-hg@1:  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
franta-hg@1:  * Boston, MA 02111-1307, USA.
franta-hg@1:  */
franta-hg@1: 
franta-hg@1: package de.laures.cewolf.taglib.tags;
franta-hg@1: 
franta-hg@1: import javax.servlet.jsp.JspException;
franta-hg@1: 
franta-hg@1: import de.laures.cewolf.ChartPostProcessor;
franta-hg@1: import de.laures.cewolf.taglib.util.PageUtils;
franta-hg@1: 
franta-hg@1: /** 
franta-hg@1:  * Tag to define a post processor.
franta-hg@1:  * @see ChartPostProcessor
franta-hg@1:  * @author  Guido Laures 
franta-hg@1:  */
franta-hg@1: public class ChartPostProcessorTag extends AbstractParameterizedObjectTag {
franta-hg@1: 
franta-hg@1:     public int doEndTag() throws JspException {
franta-hg@1:         ChartPostProcessor pp = null;
franta-hg@1:         try {
franta-hg@1:             pp = (ChartPostProcessor)getObject();
franta-hg@1:             if (pp == null) {
franta-hg@1:                 throw new JspException("Could not find ChartEnhanncer under ID '" + getId() + "'");
franta-hg@1:             }
franta-hg@1:         } catch (ClassCastException cce) {
franta-hg@1:             throw new JspException("Bean under ID '" + getId() + "' is of type '"
franta-hg@1:             + pp.getClass().getName() +
franta-hg@1:             "'.\nType expected:" + ChartPostProcessor.class.getName());
franta-hg@1:         }
franta-hg@1:         AbstractChartTag rt = (AbstractChartTag)PageUtils.findRoot(this, pageContext);
franta-hg@1:         rt.addChartPostProcessor((ChartPostProcessor)getObject(), getParameters());
franta-hg@1:         return doAfterEndTag(EVAL_PAGE);
franta-hg@1:     }
franta-hg@1: 
franta-hg@1: }