/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
 * http://www.jaspersoft.com
 *
 * Unless you have purchased a commercial license agreement from Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of JasperReports.
 *
 * JasperReports 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 3 of the License, or
 * (at your option) any later version.
 *
 * JasperReports 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 JasperReports. If not, see <http://www.gnu.org/licenses/>.
 */
package servlets;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExporterParameter;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.JasperReport;
import net.sf.jasperreports.engine.export.JRHtmlExporter;
import net.sf.jasperreports.engine.export.JRHtmlExporterParameter;
import net.sf.jasperreports.engine.util.JRLoader;
import net.sf.jasperreports.j2ee.servlets.ImageServlet;
import datasource.WebappDataSource;


/**
 * @author Teodor Danciu (teodord@users.sourceforge.net)
 * @version $Id: HtmlServlet.java 3031 2009-08-27 11:14:57Z teodord $
 */
public class HtmlServlet extends HttpServlet
{


	/**
	 *
	 */
	public void service(
		HttpServletRequest request,
		HttpServletResponse response
		) throws IOException, ServletException
	{
		ServletContext context = this.getServletConfig().getServletContext();

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();

		try
		{
			File reportFile = new File(context.getRealPath("/reports/WebappReport.jasper"));
			if (!reportFile.exists())
				throw new JRRuntimeException("File WebappReport.jasper not found. The report design must be compiled first.");

			JasperReport jasperReport = (JasperReport)JRLoader.loadObject(reportFile.getPath());
		
			Map parameters = new HashMap();
			parameters.put("ReportTitle", "Address Report");
			parameters.put("BaseDir", reportFile.getParentFile());
						
			JasperPrint jasperPrint = 
				JasperFillManager.fillReport(
					jasperReport, 
					parameters, 
					new WebappDataSource()
					);
						
			JRHtmlExporter exporter = new JRHtmlExporter();
		
			request.getSession().setAttribute(ImageServlet.DEFAULT_JASPER_PRINT_SESSION_ATTRIBUTE, jasperPrint);
			
			exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
			exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
			exporter.setParameter(JRHtmlExporterParameter.IMAGES_URI, "image?image=");
			
			exporter.exportReport();
		}
		catch (JRException e)
		{
			out.println("<html>");
			out.println("<head>");
			out.println("<title>JasperReports - Web Application Sample</title>");
			out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\">");
			out.println("</head>");
			
			out.println("<body bgcolor=\"white\">");

			out.println("<span class=\"bnew\">JasperReports encountered this error :</span>");
			out.println("<pre>");

			e.printStackTrace(out);

			out.println("</pre>");

			out.println("</body>");
			out.println("</html>");
		}
	}


}
