/***********************************************************************************************
* File Info: $Id: ChartServlet.java,v 1.1 2003/08/28 01:17:36 nathaniel_auvil Exp $
* Copyright (C) 2002
* Author: Nathaniel G. Auvil
* Contributor(s):
*
* Copyright 2002 (C) Nathaniel G. Auvil. All Rights Reserved.
*
* Redistribution and use of this software and associated documentation ("Software"), with or
* without modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright statements and notices.
* Redistributions must also contain a copy of this document.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. The name "jCharts" or "Nathaniel G. Auvil" must not be used to endorse or promote
* products derived from this Software without prior written permission of Nathaniel G.
* Auvil. For written permission, please contact nathaniel_auvil@users.sourceforge.net
*
* 4. Products derived from this Software may not be called "jCharts" nor may "jCharts" appear
* in their names without prior written permission of Nathaniel G. Auvil. jCharts is a
* registered trademark of Nathaniel G. Auvil.
*
* 5. Due credit should be given to the jCharts Project (http://jcharts.sourceforge.net/).
*
* THIS SOFTWARE IS PROVIDED BY Nathaniel G. Auvil AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* jCharts OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
************************************************************************************************/
package org.krysalis.jcharts.demo.simpleservlet;
import org.krysalis.jcharts.Chart;
import org.krysalis.jcharts.chartData.ChartDataException;
import org.krysalis.jcharts.encoders.ServletEncoderHelper;
import org.krysalis.jcharts.properties.PropertyException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class ChartServlet extends HttpServlet
{
public static final String CHART = "CHART";
public static final String IMAGE_MAP = "IMAGE_MAP";
/**********************************************************************************************
*
**********************************************************************************************/
public void service( HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse ) throws ServletException, IOException
{
Chart chart = (Chart) httpServletRequest.getSession().getAttribute( CHART );
try
{
//---call encode just like you would normally
ServletEncoderHelper.encodeJPEG13( chart, 1.0f, httpServletResponse );
}
catch( PropertyException propertyException )
{
propertyException.printStackTrace();
}
catch( ChartDataException dataException )
{
dataException.printStackTrace();
}
httpServletRequest.getSession().removeAttribute( CHART );
}
}