/*
 * Created on Sep 20, 2003
 *
 * To change the template for this generated file go to
 * Window - Preferences - Java - Code Generation - Code and Comments
 */
package xa.webwork.dispatcher;

import java.io.OutputStream;

import javax.servlet.http.HttpServletResponse;

import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;

import com.opensymphony.webwork.ServletActionContext;
import com.opensymphony.xwork.ActionInvocation;
import com.opensymphony.xwork.Result;

/**
 * @author bchoi
 *
 * To change the template for this generated type comment go to
 * Window - Preferences - Java - Code Generation - Code and Comments
 */
public class ChartResult implements Result {

	private String location;

	/* (non-Javadoc)
	 * @see com.opensymphony.xwork.Result#execute(com.opensymphony.xwork.ActionInvocation)
	 */
	public void execute(ActionInvocation invocation) throws Exception {
		JFreeChart chart =
			(JFreeChart) invocation.getStack().findValue("chart");
		HttpServletResponse response = ServletActionContext.getResponse();
		OutputStream os = response.getOutputStream();
		ChartUtilities.writeChartAsPNG(os, chart, 500, 400);
		os.flush();
	}

}