Ptidej-v5.2-master/Ptidej Reporting Tests/src/net/sf/jasperreports/j2ee/servlets/OdtServlet.java
/*
 * ============================================================================
 * GNU Lesser General Public License
 * ============================================================================
 *
 * JasperReports - Free Java report-generating library.
 * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
 * 
 * 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.
 * 
 * JasperSoft Corporation
 * 303 Second Street, Suite 450 North
 * San Francisco, CA 94107
 * http://www.jaspersoft.com
 */
package net.sf.jasperreports.j2ee.servlets;

import java.io.IOException;
import java.io.OutputStream;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExporterParameter;
import net.sf.jasperreports.engine.export.oasis.JROdtExporter;
import net.sf.jasperreports.engine.util.FileBufferedOutputStream;

/**
 * @author Teodor Danciu (teodord@users.sourceforge.net)
 * @version $Id: OdtServlet.java,v 1.1 2008/09/29 16:21:47 guehene Exp $
 */
public class OdtServlet extends BaseHttpServlet
{
	private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;


	/**
	 *
	 */
	public void service(
		HttpServletRequest request,
		HttpServletResponse response
		) throws IOException, ServletException
	{
		List jasperPrintList = BaseHttpServlet.getJasperPrintList(request);

		if (jasperPrintList == null)
		{
			throw new ServletException("No JasperPrint documents found on the HTTP session.");
		}
		
		Boolean isBuffered = Boolean.valueOf(request.getParameter(BaseHttpServlet.BUFFERED_OUTPUT_REQUEST_PARAMETER));
		if (isBuffered.booleanValue())
		{
			FileBufferedOutputStream fbos = new FileBufferedOutputStream();
			JROdtExporter exporter = new JROdtExporter();
			exporter.setParameter(JRExporterParameter.JASPER_PRINT_LIST, jasperPrintList);
			exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, fbos);

			try 
			{
				exporter.exportReport();
				fbos.close();
			
				if (fbos.size() > 0)
				{
					response.setContentType("application/vnd.oasis.opendocument.text");
	//				response.setHeader("Content-Disposition", "inline; filename=\"file.odt\"");
					response.setContentLength(fbos.size());
					ServletOutputStream ouputStream = response.getOutputStream();
	
					try
					{
						fbos.writeData(ouputStream);
						fbos.dispose();
						ouputStream.flush();
					}
					finally
					{
						if (ouputStream != null)
						{
							try
							{
								ouputStream.close();
							}
							catch (IOException ex)
							{
							}
						}
					}
				}
			} 
			catch (JRException e) 
			{
				throw new ServletException(e);
			}
			finally
			{
				fbos.close();
				fbos.dispose();
			}
			
//			else
//			{
//				response.setContentType("text/html");
//				PrintWriter out = response.getWriter();
//				out.println("<html>");
//				out.println("<body bgcolor=\"white\">");
//				out.println("<span class=\"bold\">Empty response.</span>");
//				out.println("</body>");
//				out.println("</html>");
//			}
		}
		else
		{
			response.setContentType("application/vnd.oasis.opendocument.text");
			//response.setHeader("Content-Disposition", "inline; filename=\"file.odt\"");

			JROdtExporter exporter = new JROdtExporter();
			exporter.setParameter(JRExporterParameter.JASPER_PRINT_LIST, jasperPrintList);
			
			OutputStream ouputStream = response.getOutputStream();
			exporter.setParameter(JRExporterParameter.OUTPUT_STREAM, ouputStream);

			try 
			{
				exporter.exportReport();
			} 
			catch (JRException e) 
			{
				throw new ServletException(e);
			}
			finally
			{
				if (ouputStream != null)
				{
					try
					{
						ouputStream.close();
					}
					catch (IOException ex)
					{
					}
				}
			}
		}
	}

	
}

