/* ================================================================

 * 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 java.io.IOException;

import javax.servlet.jsp.JspException;

/**

 * 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 {

	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(ioex);

            throw new JspException(ioex.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;

	}

}