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Hi All,
I was using the attached
servlet(based in example supplied with FOP) to print some reports. It was
running OK with Tomcat, but when i changed my aplication server to Oracle 9IAS,
it is not working anymore.
The printer is already
configured in the server.
Does somebody know
what is the problem ?
Thanks,
Paulo Benfatti
The error generated is:
500 Internal Server Errororg.apache.fop.apps.FOPException: Unable to print: java.awt.print.PrinterException: No printer found. |
/* * $Id: FopPrintServlet.java,v 1.1.2.1 2002/03/27 13:08:54 keiron Exp $ * Copyright (C) 2002 The Apache Software Foundation. All rights reserved. * For details on use and redistribution please refer to the * LICENSE file included with these sources. */
import java.io.*; import java.util.Vector ; import java.awt.print.PrinterJob ; import java.awt.print.PrinterException ; import javax.servlet.*; import javax.servlet.http.*; import org.xml.sax.InputSource; import org.xml.sax.XMLReader; import org.apache.fop.apps.Driver; import org.apache.fop.layout.Page; import org.apache.fop.apps.Version; import org.apache.fop.apps.XSLTInputHandler; import org.apache.fop.messaging.MessageHandler; import org.apache.fop.render.awt.AWTRenderer ; import org.apache.avalon.framework.logger.ConsoleLogger; import org.apache.avalon.framework.logger.Logger; /** * Example servlet to generate a fop printout from a servlet. * Printing goes to the default printer on host where the servlet executes. * Servlet param is: * <ul> * <li>fo: the path to a formatting object file to render * </ul> * * Example URL: http://servername/fop/servlet/FopPrintServlet?fo=readme.fo * Example URL: http://servername/fop/servlet/FopPrintServlet?xml=data.xml&xsl=format.xsl * Compiling: you will need * - servlet_2_2.jar * - fop.jar * - sax api * - avalon-framework-x.jar (where x is the version found the FOP lib dir) * * Running: you will need in the WEB-INF/lib/ directory: * - fop.jar * - batik.jar * - avalon-framework-x.jar (where x is the version found the FOP lib dir) * - xalan-2.0.0.jar */ public class FopPrintServlet extends HttpServlet { public static final String FO_REQUEST_PARAM = "fo"; public static final String XML_REQUEST_PARAM = "xml"; public static final String XSL_REQUEST_PARAM = "xsl"; Logger log = null; public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException { if (log == null) { log = new ConsoleLogger(ConsoleLogger.LEVEL_WARN); MessageHandler.setScreenLogger(log); } try { String foParam = request.getParameter(FO_REQUEST_PARAM); String xmlParam = request.getParameter(XML_REQUEST_PARAM); String xslParam = request.getParameter(XSL_REQUEST_PARAM); if (foParam != null) { FileInputStream file = new FileInputStream(foParam); renderFO(new InputSource(file), response); } else if ((xmlParam != null) && (xslParam != null)) { XSLTInputHandler input = new XSLTInputHandler(new File(xmlParam), new File(xslParam)); renderXML(input, response); } else { response.setContentType ("text/html"); PrintWriter out = response.getWriter(); out.println("<html><title>Error</title>\n"+ "<body><h1>FopServlet Error</h1><h3>No 'fo' or 'xml/xsl' "+ "request param given.</h3></body></html>"); } } catch (ServletException ex) { throw ex; } catch (Exception ex) { throw new ServletException(ex); } } /** * Renders an FO inputsource to the default printer. */ public void renderFO(InputSource foFile, HttpServletResponse response) throws ServletException { try { Driver driver = new Driver(foFile, null); PrinterJob pj = PrinterJob.getPrinterJob(); PrintRenderer renderer = new PrintRenderer(pj); driver.setLogger (log); driver.setRenderer(renderer); driver.run(); reportOK (response); } catch (Exception ex) { throw new ServletException(ex); } } /** * Renders an FO generated using an XML and a stylesheet to the default printer. */ public void renderXML(XSLTInputHandler input, HttpServletResponse response) throws ServletException { try { Driver driver = new Driver(); PrinterJob pj = PrinterJob.getPrinterJob(); PrintRenderer renderer = new PrintRenderer(pj); pj.setCopies(1); driver.setLogger (log); driver.setRenderer (renderer); driver.render (input.getParser(), input.getInputSource()); reportOK (response); } catch (Exception ex) { throw new ServletException(ex); } } // private helper, tell (browser) user that file printed private void reportOK (HttpServletResponse response) throws ServletException { String sMsg = "<html><title>Success</title>\n" + "<body><h1>FopPrintServlet: </h1>" + "<h3>The requested data was printed</h3></body></html>" ; response.setContentType ("text/html"); response.setContentLength (sMsg.length()); try { PrintWriter out = response.getWriter(); out.println (sMsg); out.flush(); } catch (Exception ex) { throw new ServletException(ex); } } // This is stolen from PrintStarter class PrintRenderer extends AWTRenderer { private static final int EVEN_AND_ALL = 0; private static final int EVEN = 1; private static final int ODD = 2; private int startNumber; private int endNumber; private int mode = EVEN_AND_ALL; private int copies = 1; private PrinterJob printerJob; PrintRenderer(PrinterJob printerJob) { super(null); this.printerJob = printerJob; startNumber = 0 ; endNumber = -1; printerJob.setPageable(this); mode = EVEN_AND_ALL; String str = System.getProperty("even"); if (str != null) { try { mode = Boolean.valueOf(str).booleanValue() ? EVEN : ODD; } catch (Exception e) {} } } public void stopRenderer(OutputStream outputStream) throws IOException { super.stopRenderer(outputStream); if (endNumber == -1) endNumber = getPageCount(); Vector numbers = getInvalidPageNumbers(); for (int i = numbers.size() - 1; i > -1; i--) removePage( Integer.parseInt((String) numbers.elementAt(i))); try { printerJob.print(); } catch (PrinterException e) { e.printStackTrace(); throw new IOException("Unable to print: " + e.getClass().getName() + ": " + e.getMessage()); } } public void renderPage(Page page) { pageWidth = (int)((float) page.getWidth() / 1000f); pageHeight = (int)((float) page.getHeight() / 1000f); super.renderPage(page); } private Vector getInvalidPageNumbers() { Vector vec = new Vector(); int max = getPageCount(); boolean isValid; for (int i = 0; i < max; i++) { isValid = true; if (i < startNumber || i > endNumber) { isValid = false; } else if (mode != EVEN_AND_ALL) { if (mode == EVEN && ((i + 1) % 2 != 0)) isValid = false; else if (mode == ODD && ((i + 1) % 2 != 1)) isValid = false; } if (!isValid) vec.add(i + ""); } return vec; } } // class PrintRenderer }
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