too much delay running report

electra

Hi all.


I have integrated BIRT in my java web application and I'm trying to run and show a report using a servlet.
The problem is that when I run the report using the "preview" button on the designer screen, the report is rendered in few second but when I try to do the same thing calling the report engine from the servlet I had a big delay for each execution.
The delay is done during the execution of the task.run(); statement in this part of code

Iterator<String> iterator = parametersMap.keySet().iterator();
while(iterator.hasNext()){
String key=iterator.next();
Object value=parametersMap.get(key);
task.setParameterValue(key, value);
}
task.validateParameters();
RenderOption options = new RenderOption();
options.setOutputFormat(outputFormat);
options.setOutputStream(baos);

task.setRenderOption(options);
task.getAppContext().put(IConnectionFactory.CLOSE_PASS_IN_CONNECTION , Boolean.TRUE);
long init=System.nanoTime()/1000;
task.run();
long end=System.nanoTime()/1000;
System.out.println(end-init);
task.close();

return baos;

Can anyone explain me why (what happen during the task.run?) and tell me if something could help me to decrease this delay?

Thanks for help!

JasonW

Remember that when you run in the designer all data is not returned unless you change the preferences. Are you only starting the platform once? That is generally what takes the most time on small reports.

Jason