Problem exporting crystal PDF using printoutputController.export method

Question

Has anyone used PrintOutputController().export() method in ReportClientdocument to export Crystal PDF report to a JavaIOStream. I am getting an error when I try to export it using this method. The error I get is unable to connect RAS.rptappsrver followed by classcast unable to export to IXMLSerializable. Here is the code I am using.
Is there some setting I need to enable on the server to use the export function or any other idea will be appreciated?
IReportAppFactory reportAppFactory = (IReportAppFactory) enterpriseSession.getService("","RASReportFactory");
ReportClientDocument reportClientDoc = reportAppFactory.openDocument(reportID, 0, Locale.ENGLISH);
return reportClientDoc.getPrintOutputController().export(exportOptions);
Here is the exact Exception:
com.crystaldecisions.sdk.occa.report.lib.ReportSDKServerException: Unable to connect to the server: FICLDEV303VWIN.RAS.rptappserver. --- com/crystaldecisions/sdk/occa/report/exportoptions/ReportExportFormat incompatible with com/crystaldecisions/xml/serialization/IXMLSerializable---- Error code:-2147217387 Error code name:connectServer
Caused by:
java.lang.ClassCastException: com/crystaldecisions/sdk/occa/report/exportoptions/ReportExportFormat incompatible with com/crystaldecisions/xml/serialization/IXMLSerializable
     at com.crystaldecisions.proxy.remoteagent.FetchReportViewingRequest.saveContents(Unknown Source)
     at com.crystaldecisions.proxy.remoteagent.FetchReportViewingRequest.save(Unknown Source)
     at com.crystaldecisions.xml.serialization.XMLObjectSerializer.save(Unknown Source)
     at com.crystaldecisions.sdk.occa.managedreports.ras.internal.CECORBACommunicationAdapter.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.managedreports.ras.internal.CECORBACommunicationAdapter.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.managedreports.ras.internal.CECORBACommunicationAdapter.request(Unknown Source)
     at com.crystaldecisions.proxy.remoteagent.z.a(Unknown Source)
     at com.crystaldecisions.proxy.remoteagent.s.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.cf.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.ReportSource.a(Unknown Source)
     at com.crystaldecisions.sdk.occa.report.application.PrintOutputController.export(Unknown Source)
     at com.fmr.fic.fund2fund.web.servlet.CrystalReportServlet.getReportByteStream(CrystalReportServlet.java)
     at com.fmr.fic.fund2fund.web.servlet.CrystalReportServlet.processUsingReportExportControl(CrystalReportServlet.java)
     at com.fmr.fic.fund2fund.web.servlet.CrystalReportServlet.doGet(CrystalReportServlet.java:128)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1212)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:629)
     at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:2837)
     at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:220)
     at com.ibm.ws.webcontainer.VirtualHost.handleRequest(VirtualHost.java:204)
     at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1681)
     at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:77)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:421)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:367)
     at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:94)
     at com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueManager.java:548)
     at com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.java:601)
     at com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.java:934)
     at com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager.java:1021)
     at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1332)
I
Is there some setting I need to enable on the server to use the export function or any other idea will be appreciated?
Edited by: Dilshad Ahmed on Nov 5, 2008 5:55 PM
Edited by: Dilshad Ahmed on Nov 5, 2008 6:09 PM

Answer 1

Here is the answer. After getting ReportClientDoc from factory we need to set the DatabaseController userid and password (if report on Crystal server is accessing oracle database as datasource). In addition we need to set parameters on the ReportClientDoc for reports and subreports before doing the the export.
Here is snippet of code: The code below is used to get ReportClientDocument and export it as PDF using bytestream.
/* Code for getting report client document */
private static synchronized ReportClientDocument getReportClientDocument() throws Exception
         int count = 3;
         ReportClientDocument rpt = null;
         while (count > 0 && rpt == null)
              try
                   if (_enterpriseSession == null)
                        ISessionMgr _sessionMgr = CrystalEnterprise.getSessionMgr();
                        _enterpriseSession = _sessionMgr.logon(CRYSTAL_USERID, CRYSTAL_PASSWORD, CRYSTAL_SERVER, CRYSTAL_AUTH);
                         LOG.info("Successful Logging into Crystal Server: " + CRYSTAL_SERVER);
                         _reportAppFactory = (IReportAppFactory)_enterpriseSession.getService("", "RASReportFactory");
                         _infoStore = (IInfoStore)_enterpriseSession.getService("InfoStore");
                         IInfoObjects result = _infoStore.query("Select SI_ID, SI_NAME From CI_INFOOBJECTS Where SI_NAME = '" + CRYSTAL_REPORT_NAME + "' And SI_INSTANCE = 0");
                         IInfoObject infoObject = (IInfoObject)result.get(0);
                         _reportId = infoObject.getID();
                         LOG.info("Located Report Id on Crystal Server: "+_reportId);
                    LOG.info("Created or found CR session");
                    rpt = _reportAppFactory.openDocument(_reportId, 0, Locale.ENGLISH);
                    break;
              catch (Exception e)
                   rpt = null;
                   _enterpriseSession = null;
                   if (--count == 0)
                        throw e;
          return rpt;
/* report for setting parameter */
private synchronized void setReportParameters(ParameterFieldController fieldController, String reportName,
              String[] reportParameterValues,     DataDefController subDataController) throws SalesforceException
         try
              Fields params = subDataController.getDataDefinition().getParameterFields();
               for (Iterator it = params.iterator(); it.hasNext();)
                    ParameterField paramField = (ParameterField)it.next();
                    int paramIndex = getElementIndex(_reportParameters, paramField.getName());
                    if (paramIndex < 0)
                         throw new SalesforceException("Parameter not defined in the configuration");
                    ParameterFieldDiscreteValue dVal = new ParameterFieldDiscreteValue();
                    dVal.setValue(reportParameterValues[paramIndex]);
                    fieldController.setCurrentValue(reportName, paramField.getName(), dVal);
               LOG.info("Completed setting parameters for report " + reportName);
         catch (ReportSDKException e)
               LOG.error("Set Report Parameters error: ", e);
               throw new SalesforceException("Set Report Parameters error", e);
     catch (Exception e)
               LOG.error("Error from getElementIndex: ", e);
               throw new SalesforceException("Set Report Parameters error", e);
/* main method used to getReport based on passing information */
    private synchronized byte[] getReport(String contactId) throws SalesforceException
         try
              String[] reportParameterValues =
                   new String[] {_sessionId, _viewId, _requestId, contactId, _language};
               DataDefController reportDefController = reportClientDoc.getDataDefController();
               reportParameterValues[0] = (_cache.equalsIgnoreCase("true") ? "CACHE:Main" : "Main");
               setReportParameters(reportDefController.getParameterFieldController(), null,
                         reportParameterValues, reportDefController);//.getDataDefinition().getParameterFields());
               IStrings subRepNames = reportClientDoc.getSubreportController().getSubreportNames();
               for (Iterator iname = subRepNames.iterator(); iname.hasNext();)
                    String subName = (String)iname.next();
                    reportParameterValues[0] = (_cache.equalsIgnoreCase("true") ? "CACHE:" : "") + subName;
                    setReportParameters(reportDefController.getParameterFieldController(), subName, reportParameterValues,
                              reportClientDoc.getSubreportController().getSubreport(subName).getDataDefController());//.getDataDefinition().getParameterFields());
               InputStream is = reportClientDoc.getPrintOutputController().export(ReportExportFormat.PDF);
             byte[] reportBinaries = new byte[is.available()];
             is.read(reportBinaries);
             is.close();
             LOG.info("Completed exporting Crystal Report as InputStream using export() method: "+contactId);
             return reportBinaries;
         catch (ReportSDKException e)
               LOG.error("Report generating error: ", e);
               throw new SalesforceException("Report generating error", e);
         catch (IOException e)
               LOG.error("Report exporting error: ", e);
               throw new SalesforceException("Report exporting error", e);