XSQL-022: Cannot load serializer class oracle.xml.xsql.serializers.fop203

Hi,
I' have used Tomcat 4.0.3 with XSQL Servlet 9.2 for about a half year. All is working fine. When I now change to 4.1.18 the most things are also working fine. The are to problems:
1. I have to save the XSQLConfig.xml in a jar file.
2. My fop serializer doesn't work any longer. I'm getting all the time the following error: XSQL-022: Cannot load serializer class oracle.xml.xsql.serializers.fop203.
I'm using the XDK 9.2.0.4 with jsdk 1.4.1 and tomcat 4.1.18 on Redhat Linux.
Has anyone had have the same problem? Has anyone a solution for this problem?
Regards
Uwe

Does the XSQLSampleSerializer exhibit the same problem?
That is, can we rule out the fact that it's related at all to FOP?
If you browse the following page, does it work?
<?xml version="1.0"?>
<?xml-stylesheet serializer="java:oracle.xml.xsql.serializers.XSQLSampleSerializer"?>
<foo-with-java/>This sample serializer should be in your xsqlserializers.jar file.

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import java.io.PrintWriter;
import oracle.xml.xsql.*;
import org.apache.fop.messaging.MessageHandler;
import org.apache.fop.apps.*;
import java.io.*;
// FOP 0.20.3 Serializer implementation for XSQL
public class fopserializer implements XSQLDocumentSerializer
private static final String PDFMIME="application/pdf";
public void serialize(Document doc, XSQLPageRequest req) throws Throwable
try
Driver FOPDriver = new Driver();
FOPDriver.setRenderer(FOPDriver.RENDER_PDF);
MessageHandler.setOutputMethod(MessageHandler.NONE);
FOPDriver.setupDefaultMappings();
req.setContentType(PDFMIME);
FOPDriver.setOutputStream(req.getOutputStream());
FOPDriver.render(doc);
catch (Exception e)
e.printStackTrace(System.err);
In my XSQL file I'm using the following PI:
<?xml-stylesheet type="text/xsl" href="listemps.fo" serializer="FOP203"?>
Any suggestions what is wrong in here ?
Can't use the original xsqlserializer.jar either - same error.
Thanks in advance
Jochen

Hi Jochen,
I'm working with Tomcat 4.0.3, FOP 20.0.3 and XDK 9.2.0.1.0, too.
I've copied all the jar-files into tomcat/common/lib. I think that you can't use the MessageHandler in fop20.0.3. I'm using the following serializer:
package diva.xml.xsql.serializers;
import org.w3c.dom.Document;
import java.io.PrintWriter;
import oracle.xml.xsql.*;
import org.apache.fop.apps.*;
import org.apache.log.*;
import org.apache.log.format.*;
import org.apache.log.output.io.*;
import org.apache.avalon.*;
import java.io.*;
public class XSQLFOP203Serializer implements XSQLDocumentSerializer {
private static final String PDFMIME = "application/pdf";
private static final String CONFPATH = "/usr/local/fop/conf/userconfig.xml";
public void serialize(Document doc, XSQLPageRequest env) throws Throwable {
try {
// Open user config file
File userConfigFile = new File(CONFPATH);
Options options = new Options(userConfigFile);
// First make sure we can load the driver
Driver FOPDriver = new Driver();
// Setup logging
Hierarchy hierarchy = Hierarchy.getDefaultHierarchy();
PatternFormatter formatter = new PatternFormatter("[%{priority}]: %{message}\n%{throwable}" );
LogTarget target = null;
target = new StreamTarget(System.out, formatter);
hierarchy.setDefaultLogTarget(target);
Logger log = hierarchy.getLoggerFor("fop");
log.setPriority(Priority.INFO);
FOPDriver.setLogger(log);
// Then set the content type before getting the reader/
env.setContentType(PDFMIME);
FOPDriver.setRenderer(FOPDriver.RENDER_PDF);
FOPDriver.setOutputStream(env.getOutputStream());
FOPDriver.render(doc);
catch (Exception e) {
// Cannot write PDF output for the error anyway.
// So maybe this stack trace will be useful info
e.printStackTrace(System.err);
Hope this helps
Uwe

XSQL-022: Cannot load serializer class oracle.xml.xsql.serializers.fop203

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