/* ================================================================
* Cewolf : Chart enabling Web Objects Framework
* ================================================================
*
* Project Info: http://cewolf.sourceforge.net
* Project Lead: Guido Laures (guido@laures.de);
*
* (C) Copyright 2002, by Guido Laures
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
package de.laures.cewolf.taglib.tags;
import de.laures.cewolf.CewolfException;
import de.laures.cewolf.Configuration;
import de.laures.cewolf.Storage;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* This tag only renders the image URL instead of a full <img> tag.
* @author glaures
* @see de.laures.cewolf.taglib.tags.ChartImgTag
*/
public class ChartImgURLTag extends ChartImgTag {
private static final Log log = LogFactory.getLog(ChartImgURLTag.class);
static final long serialVersionUID = -8566975311205247052L;
public static final String VAR_NAME = "var";
String var = null;
public int doEndTag() throws JspException {
try {
if (var == null) {
pageContext.getOut().write(getImgURL());
} else {
pageContext.setAttribute(var, getImgURL());
}
} catch(IOException ioex){
log.error("ChartImgTag.doEndTag: "+ioex.getMessage());
throw new JspException(ioex.getMessage());
}
try {
Storage storage = Configuration.getInstance(pageContext.getServletContext()).getStorage();
storage.removeChartImage(sessionKey, (HttpServletRequest) pageContext.getRequest());
} catch (CewolfException cwex) {
throw new JspException(cwex.getMessage());
}
return doAfterEndTag(EVAL_PAGE);
}
/**
* @see de.laures.cewolf.taglib.tags.CewolfBodyTag#reset()
*/
protected void reset() {
super.reset();
var = null;
}
/**
* Returns the var.
* @return String
*/
public String getVar() {
return var;
}
/**
* Sets the var.
* @param var The var to set
*/
public void setVar(String var) {
this.var = var;
}
}