java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/tags/ChartPostProcessorTag.java
1 /* ================================================================
2 * Cewolf : Chart enabling Web Objects Framework
3 * ================================================================
5 * Project Info: http://cewolf.sourceforge.net
6 * Project Lead: Guido Laures (guido@laures.de);
8 * (C) Copyright 2002, by Guido Laures
10 * This library is free software; you can redistribute it and/or modify it under the terms
11 * of the GNU Lesser General Public License as published by the Free Software Foundation;
12 * either version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
15 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16 * See the GNU Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public License along with this
19 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20 * Boston, MA 02111-1307, USA.
23 package de.laures.cewolf.taglib.tags;
25 import javax.servlet.jsp.JspException;
27 import de.laures.cewolf.ChartPostProcessor;
28 import de.laures.cewolf.taglib.util.PageUtils;
31 * Tag to define a post processor.
32 * @see ChartPostProcessor
33 * @author Guido Laures
35 public class ChartPostProcessorTag extends AbstractParameterizedObjectTag {
37 public int doEndTag() throws JspException {
38 ChartPostProcessor pp = null;
40 pp = (ChartPostProcessor)getObject();
42 throw new JspException("Could not find ChartEnhanncer under ID '" + getId() + "'");
44 } catch (ClassCastException cce) {
45 throw new JspException("Bean under ID '" + getId() + "' is of type '"
46 + pp.getClass().getName() +
47 "'.\nType expected:" + ChartPostProcessor.class.getName());
49 AbstractChartTag rt = (AbstractChartTag)PageUtils.findRoot(this, pageContext);
50 rt.addChartPostProcessor((ChartPostProcessor)getObject(), getParameters());
51 return doAfterEndTag(EVAL_PAGE);