REP-52007 with parameter form

Question

Hi,
I've been trying to run parameter forms for 2 days now, and i'm getting desperate.
For the moment, I can see the parameter form (not like it shows in Report Builder though...)
When I give my two parameters (it are dates) into the parameter fuild, and i try to execute the query, following error shows :
REP-52007: Opmaakfout parameterformulier
java.lang.IllegalStateException: Writer already retrieved     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.EvermindHttpServletResponse.getOutputStream(EvermindHttpServletResponse.java:969)     at javax.servlet.ServletResponseWrapper.getOutputStream(ServletResponseWrapper.java:136)     at oracle.reports.rwclient.RWWriter.getOutputStream(RWWriter.java:263)     at oracle.reports.rwclient.RWReportRunner.sendFile(RWReportRunner.java:355)     at oracle.reports.rwclient.RWReportRunner.getMainFile(RWReportRunner.java:161)     at oracle.reports.rwclient.ServletCmdMgr.handleCmdGetjob(ServletCmdMgr.java:1343)     at oracle.reports.rwclient.CommandManager.handleWebCommand(CommandManager.java:92)     at oracle.reports.rwclient.ServletCmdMgr.handleWebCommand(ServletCmdMgr.java:295)     at oracle.reports.rwclient.RWClient.handleWebCommand(RWClient.java:958)     at oracle.reports.rwclient.RWClient.processRequest(RWClient.java:1442)     at oracle.reports.rwclient.RWClient.doPost(RWClient.java:504)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:65)     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(Unknown Source)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:285)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].server.http.HttpRequestHandler.run(HttpRequestHandler.java:126)     at com.evermind[Oracle Application Server Containers for J2EE 10g (10.1.2.0.2)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:186)     at java.lang.Thread.run(Thread.java:534)
My OC4J is running, and also the reportserver is active.
I'm using forms 10g and forms builder 10g.
This is my code to make the report show :
PROCEDURE SHOW_REPORT
(type VARCHAR2, rep_obj VARCHAR2)
IS
rep_id REPORT_OBJECT;
rep_status VARCHAR2(100);
rep_svr VARCHAR2(21) := 'birserver';
rep_format VARCHAR2(20) := 'HTMLCSS';
rep_locatie VARCHAR2(100) := 'C:\PISAD\TEMP\';
reportserverjob VARCHAR2(100);
rep_job_id VARCHAR2(100);
BEGIN
IF type = 'PDF' THEN
     rep_format := 'PDF';
ELSIF type = 'XLS' THEN
     rep_format := 'SPREADSHEET';
ELSIF type = 'HTML' THEN
     rep_format := 'HTMLCSS';
END IF;
rep_id := find_report_object(rep_obj);
set_report_object_property(rep_id, report_comm_mode, synchronous);
set_report_object_property(rep_id, report_server, rep_svr);
set_report_object_property(rep_id, report_desname, rep_locatie || rep_obj || '.' || type);
set_report_object_property(rep_id, report_desformat, rep_format);
set_report_object_property(rep_id, report_destype, FILE);
     SET_REPORT_OBJECT_PROPERTY(rep_id,REPORT_OTHER,'paramform=yes');
reportserverjob := run_report_object(rep_id);
rep_job_id := substr(reportserverjob,length(rep_svr) + 2);
WEB.SHOW_DOCUMENT('/reports/rwservlet/getjobid'|| rep_job_id ||'?server='||rep_svr,'_blank');
The report destination type is preview, execution mode is runtime, communication mode is synchronous
I really hope someone can help :(
thanks alot!

Answer 1

Your code seems to be implementing metalink note 139546.1 - Using Reports parameter forms with RUN_REPORT_OBJECT on the web.
For what I can see, the P_ACTION parameter should end in ?...
i.e.
P_ACTION=http://<hostname.domain:port>/reports/rwservlet?'
set_report_object_property (
repid,
report_other,
'paramform=yes P_USER_CONNECT='
|| vc_connect
|| ' P_SERVERNAME='
|| v_reportserv
|| ' P_ACTION='
|| v_report_url
|| '/reports/rwservlet?'
);If this does not fix your problem, then to troubleshoot further you would have to post the code in your Before Parameter Form trigger of your report.
Hope this helps,
UPDATE:
If the above does not fix your problem, my guess is that report name is not being generated in the hidden runtime values build by the code in the Before Parameter Form trigger.
i.e.
http://localhost:8889/reports/rwservlet?report=&destype=cache&desformat=PDF
The above code will throw error REP-52005: The specified key report does not exist in key map file.
Edited by: Rodolfo Ferrari on Jul 8, 2009 9:43 PM