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avoid/clean up BIRT runtime images files [message #368270]

Fri, 15 May 2009 16:14

Eclipse User

Hello,

I am new to BIRT and just created a simple web app with BIRT report.
It works fine.
Because my report contains charts, it generates a png image file on the
system every time I generate the report in html output.
The pdf output doesn't seem to generate the image. It would generate
thousands of images as time goes by.
Just wonder if there is a way to avoid or clean up this kind of BIRT
runtime images files.

Thanks for your time and help.

Regards,

Alex

Re: avoid/clean up BIRT runtime images files [message #368287 is a reply to message #368270]

Mon, 18 May 2009 12:15

Eclipse User

Originally posted by: jasonweathersby.alltel.net

Alex,

The images should be getting removed automatically when the session expires.

Jason

Alex wrote:
> Hello,
>
> I am new to BIRT and just created a simple web app with BIRT report.
> It works fine.
> Because my report contains charts, it generates a png image file on the
> system every time I generate the report in html output.
> The pdf output doesn't seem to generate the image. It would generate
> thousands of images as time goes by.
> Just wonder if there is a way to avoid or clean up this kind of BIRT
> runtime images files.
> Thanks for your time and help.
>
> Regards,
>
> Alex
>

Re: avoid/clean up BIRT runtime images files [message #368337 is a reply to message #368287]

Thu, 21 May 2009 17:22

Eclipse User

Hi Jason,

Those images are still there even after I shut down my Tomcat server.

The following code shows how I specified the BIRT image URL and directory:

HTMLRenderOption options = new HTMLRenderOption();
options.setImageHandler(new HTMLServerImageHandler());
options.setOutputFormat(HTMLRenderOption.OUTPUT_FORMAT_HTML) ;
options.setBaseImageURL(req.getContextPath() + "/BIRTimages");
options.setImageDirectory(sc.getRealPath("/BIRTimages"));

Is there anything else I need to do in order for BIRT engine to remove
those images after session expires?

Thanks again for all your time and help.

Best Regards,

Alex

Re: avoid/clean up BIRT runtime images files [message #368350 is a reply to message #368337]

Fri, 22 May 2009 11:09

Eclipse User

Originally posted by: jasonweathersby.windstream.net

Alex,

I should have clarified, the WebViewer does the temp image clean. If
you wrote your own servlet you will need to do this yourself.

You may want to add a session listener to your servlet
<listener>
<listener-class>org.mytest.com.MySessionListener</listener-class >
</listener>

public class MySessionListener implements HttpSessionListener
{

public void sessionCreated( HttpSessionEvent event )
{
}

public void sessionDestroyed( HttpSessionEvent event )
{
//Delete temp files
}

}

You could also just delete them on the servlet destroy method.
You could also checkout the source for the web viewer and copy its code.

Jason

Alex wrote:
> Hi Jason,
>
> Those images are still there even after I shut down my Tomcat server.
>
> The following code shows how I specified the BIRT image URL and directory:
>
> HTMLRenderOption options = new HTMLRenderOption();
> options.setImageHandler(new HTMLServerImageHandler());
> options.setOutputFormat(HTMLRenderOption.OUTPUT_FORMAT_HTML) ;
> options.setBaseImageURL(req.getContextPath() + "/BIRTimages");
> options.setImageDirectory(sc.getRealPath("/BIRTimages"));
>
> Is there anything else I need to do in order for BIRT engine to remove
> those images after session expires?
> Thanks again for all your time and help.
>
> Best Regards,
>
> Alex

Re: avoid/clean up BIRT runtime images files [message #368351 is a reply to message #368350]

Fri, 22 May 2009 11:12

Eclipse User

Originally posted by: jasonweathersby.windstream.net

BTW if you look at the viewer checkout
ViewingSessionManager.java

Jason Weathersby wrote:
> Alex,
>
> I should have clarified, the WebViewer does the temp image clean. If
> you wrote your own servlet you will need to do this yourself.
>
> You may want to add a session listener to your servlet
> <listener>
> <listener-class>org.mytest.com.MySessionListener</listener-class >
> </listener>
>
> public class MySessionListener implements HttpSessionListener
> {
>
> public void sessionCreated( HttpSessionEvent event )
> {
> }
>
> public void sessionDestroyed( HttpSessionEvent event )
> {
> //Delete temp files
> }
>
> }
>
> You could also just delete them on the servlet destroy method.
> You could also checkout the source for the web viewer and copy its code.
>
> Jason
>
>
> Alex wrote:
>> Hi Jason,
>>
>> Those images are still there even after I shut down my Tomcat server.
>>
>> The following code shows how I specified the BIRT image URL and
>> directory:
>>
>> HTMLRenderOption options = new HTMLRenderOption();
>> options.setImageHandler(new HTMLServerImageHandler());
>> options.setOutputFormat(HTMLRenderOption.OUTPUT_FORMAT_HTML) ;
>> options.setBaseImageURL(req.getContextPath() + "/BIRTimages");
>> options.setImageDirectory(sc.getRealPath("/BIRTimages"));
>>
>> Is there anything else I need to do in order for BIRT engine to remove
>> those images after session expires?
>> Thanks again for all your time and help.
>>
>> Best Regards,
>>
>> Alex

Re: avoid/clean up BIRT runtime images files [message #368390 is a reply to message #368351]

Wed, 27 May 2009 10:52

Eclipse User

Jason,

I will try to implement the HttpSessionListener. I really appreciate all
your time and help.

Regards,

Alex

Re: avoid/clean up BIRT runtime images files [message #1775079 is a reply to message #368390]

Tue, 24 October 2017 07:19

Eclipse User

Hi,

I know this is a older post, by any chances can anyone guide me how to remove the temporary file which is avaibale in document folder.

How to add listenter.java in the birt viewer

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