java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/tags/ChartPostProcessorTag.java
author František Kučera <franta-hg@frantovo.cz>
Sat, 28 Feb 2009 21:31:02 +0100
changeset 1 639991d0808a
permissions -rw-r--r--
Rozbalená knihovna verze 1.0
     1 /* ================================================================
     2  * Cewolf : Chart enabling Web Objects Framework
     3  * ================================================================
     4  *
     5  * Project Info:  http://cewolf.sourceforge.net
     6  * Project Lead:  Guido Laures (guido@laures.de);
     7  *
     8  * (C) Copyright 2002, by Guido Laures
     9  *
    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.
    13  *
    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.
    17  *
    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.
    21  */
    22 
    23 package de.laures.cewolf.taglib.tags;
    24 
    25 import javax.servlet.jsp.JspException;
    26 
    27 import de.laures.cewolf.ChartPostProcessor;
    28 import de.laures.cewolf.taglib.util.PageUtils;
    29 
    30 /** 
    31  * Tag to define a post processor.
    32  * @see ChartPostProcessor
    33  * @author  Guido Laures 
    34  */
    35 public class ChartPostProcessorTag extends AbstractParameterizedObjectTag {
    36 
    37     public int doEndTag() throws JspException {
    38         ChartPostProcessor pp = null;
    39         try {
    40             pp = (ChartPostProcessor)getObject();
    41             if (pp == null) {
    42                 throw new JspException("Could not find ChartEnhanncer under ID '" + getId() + "'");
    43             }
    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());
    48         }
    49         AbstractChartTag rt = (AbstractChartTag)PageUtils.findRoot(this, pageContext);
    50         rt.addChartPostProcessor((ChartPostProcessor)getObject(), getParameters());
    51         return doAfterEndTag(EVAL_PAGE);
    52     }
    53 
    54 }